DEVICE WITH ROTARY PISTONS THAT CAN BE USED AS A COMPRESSOR, A PUMP, A VACUUM PUMP, A TURBINE, A MOTOR AND AS OTHER DRIVING AND DRIVEN HYDRAULIC-PNEUMATIC MACHINES
Device with rotary pistons that can be used as a compressor, a pump, a vacuum pump, a turbine, a motor and as other driving and driven hydraulic pneumatic machines, according to the invention, is used in several embodiments so as to enable its use with all hydraulic pneumatic machines and engines, by fitting constructional assemblies with gears and rotary pistons. Generally, depending on the type of construction, it consists of a piston housing (11) or piston housing (11a) with inlet-outlet connections (20), a gear housing (9), a separating wall (7) or separating wall (7a), front cover (12) and a rear cover (1) connected to each other by bolts screwed in the body of the rear cover (1) or in the body of the piston housings (11 or 11a) wherein set are working-auxiliary rotary pistons that consist of a body (6) of a cylindrical circular shape with one or more working protrusions (A, B, C, D, E or F) and one or more auxiliary recesses (G or H) arranged at the angles, depending on the type of device, that are over shafts (4,5) firmly connected with gears (10) or gears (10a) set in the gear housing (9) where the piston housing (11 or 11a) and the gear housing (9) are separated by separating wall (7 or 7a) with the holes for the shafts (4,5) embedded in the front cover (12) and the separating wall (7) or only in the separating wall (7) or in the covers (12,1).
Invention refers to the devices with rotary piston (or pistons) that can be used wherever there is a need to make vacuum, for compression of compressible fluids, for pumping fluids, to create pressure (high and extremely high pressures) e.g.: vacuum pumps, compressors, pumps, then as driving or driven hydraulic pneumatic machines, as devices having a characteristic to convert energy of some fluid into a mechanical power and vice versa such as turbines, motors, internal combustion engines, etc.
Generally speaking invention belongs to the following fields: engines, turbines, drives, pumps, and more precisely: machines or engines, turbines, motors, pumps, with rotary piston, according to the International Patent Classification (IPC)(2007.01) the subject of invention belongs to i.e. is classed and assigned by classification symbols and some of these symbols are: F01C 1/00, F02B 55/00, F03C 2/00, F04C 2/00, F04C 11/00, F04C 18/00, F04C 23/00.
TECHNICAL PROBLEMTechnical problem solved by herewith explained invention consists in the following: how to solve the construction of a device with rotary piston (pistons) in several embodiments so as to enable its use wherever needed: to make vacuum, for compression of compressible fluids, for pumping fluids, to create pressure—high and extremely high: vacuum apparatuses, compressors, pumps, then for driving and driven hydraulic pneumatic machines; motors that have a characteristic to convert the energy of some fluid into mechanical power and vice versa (turbines, motors, . . . ).
Application of structural assemblies with to each other engaged gears and rotary pistons of different profiles gives as a result a uniform economically satisfactory construction with a high rate of utilization and a long working life, by means of which are significantly reduced; friction, noise, and a maximal torque and resistance to very high working pressures are achieved.
State-of-Art of Invention
Generally known are different structures of driving and driven machines where the main disadvantage is an expensive and complex manufacturing, and heaviness. With the majority of existing constructions the main problem is the expensive manufacture, the need for regular lubrication due to a high friction coefficient thus leading to relatively complex systems for lybrication, and have a low-rate exploitation of utilization of energy of fluids, e.g. compressors (standard piston compressors) manufacturing of which is very complex, relatively expensive and very noisy, then; pumps with many (2, . . . , 10, . . . and more) working circuits are used to achieve high pressure making them too heavy, expensive, it is similar with high-pressure pumps of 100 . . . 200 Bars expensive and complex; steam turbines the activation of which requires the use of special motors; vacuum apparatuses with high rotation of working circuits and low rate of the achieved vacuum; internal combustion engines—very complex.
Searching patent documentation and technical papers in this field has revealed no similar solution of the set out technical problem.
Subject Matter of Invention
Rotary pistons in the housing, by its top and bottom flat surfaces, being in the contact line with the surfaces of separating wall i.e. cover, that close the piston housing and the pistons themselves (and can have a high clearance when used for fluids with impurities, ingredients); rotary pistons are over the shafts firmly connected to gears, set in the other housing (with a certain quantity of oil, being enough for lubrication) where each to other these are engaged; the driving gear with one or with several driven gears and the purpose of these is power transmission and synchronization of revolvment of rotary pistons; while revolving the rotary pistons slide by its tops (at the very line of touch) along the internal side of the housing of the pistons (and where clearances, when using fluids with impurities, these can have even higher clearances when used for fluids with impurities) creating therewith the underpressure (a certain vacuum rate) and in the front, carry out the thrust or are compressed (when used as a turbine or a motor, etc.); in the housing with pistons, some oil can be present there to improve sealing (and there can be even a constant flow of the appropriate quantity of cooled oil intended, amongst other, when needed to cool device) and to improve the efficacy of the device when used in the function of the vacuum pump or a compressor.
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- Rotary piston consists of a cylindrically shaped body with protrusions on it (in it) of cylindrical-semicylindrical or other shapes and recessions of cylindrical-semicylindrical or other shapes.
- Protrusions along the length of cylindrical-semicylindrical or other shape on the body of the rotary piston, are in parallel to the axis of the body of rotary piston, for facilitating recognition of each shape, each one is distinctly marked by one of the following alphabets and that; “A” “B” “C” “D” “E” “F”.—“A” is a protrusion of a cylindrical-semicylindrical shape.
- “B” is a protrusion shaped as an indented (along the length) cylinder-semicylinder per both sides once.
- “C” is a protrusion shaped as an indented (along the length) cylinder-semicylinder once per both sides.
- “D” is a protrusion shaped as an indented (along the length) cylinder-semicylinder twice per both sides.
- “E” is a protrusion shaped as an indented (along the length) cylinder-semicylinder four times per both sides.
- “F” is a protrusion shaped as a truncated cylinder-semicylinder.
Longitudinal recess/recesses of cylindrical-semicylindrical or other shape on the body of the rotary piston is/are in parallel with the axis of the body of the rotary piston and to make description clearer, each shape is marked with one of the following alphabets and that; “G” “H”.
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- “G” is a recess of a cylindrical-semicylindrical shape.
- “H” is a recess shaped as a truncated cylinder-semicylinder, adjusted to the shape of the working piston “F”
A protrusion or a recess as well as several protrusions and recesses (i.e. combination of protrusions or recesses) of any shapes (A,B,C,D,E,F,G,H) on the body of the rotary piston, are grouped to make an intelligible description, as the following;
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- Double-sided working auxiliary rotary piston—is a body of a cylindrical-semicylindrical shape with a hole for the shaft in the center or with an integrated shaft, which has on itself two protrusions and two recesses arranged in alteration at the angles of 90 DEG.
- Double-sided working rotary piston—is a body of a cylindrical semicylindrical shape with a hole for shaft in the centre or with an integrated shaft, whereon two protrusions are arranged at the angle of 180 DEG.
- Double-sided auxiliary rotary piston—is a body of a cylindrical-semicylindrical shape with a hole for the shaft in the centre or with an integrated shaft, wherein are two recesses arranged at the angle of 180 DEG.
- Single-sided working rotary piston—is a body of a cylindrical-semicylindrical shape with a hole for the shaft in the centre or with an integrated shaft, whereon is one protrusion.
- Single-sided auxiliary rotary piston—is a body of a cylindrical-semicylindrical shape with a hole for the shaft in the centre or an integrated shaft, wherein is one recess.
- Three-sided working rotary piston—is a body of a cylindrical-semicylindrical shape whereon are three protrusions arranged at the angles of 120 DEG.
- Three-sided auxiliary rotary piston—is a body of a cylindrical-semicylindrical shape with a hole for the shaft in the centre or an integrated shaft, wherein are three recesses arranged at the angles of 120 DEG.
- Four-sided working rotary piston—is a body of a cylindrical-semicylindrical shape with a hole for the shaft in the centre, or an integrated shaft, whereon are four protrusions arranged at the angles of 90 DEG.
- Four-sided auxiliary rotary piston—is a body of a cylindrical-semicylindrical shape with a hole for the shaft in the centre or an integrated shaft, wherein are four recesses arranged at the angles of 90 DEG.
- Cylindrical-semicylindrical body of the rotary piston integrated as one part with the shaft or with a hole in the centre matching to the diameter of the shaft, can on itself have any of shaped protrusions A,B,C,D,E or F, and shaped recesses of G or H shape, one by one or combined with several protrusions and recesses as represented and explained in
FIGS. 138 to 141 , thenFIGS. 143 to 174 and in the devices fromFIGS. 1 to 137 .
Inside the housing of the pistons on the separating wall and the cover i.e. inside the elements that close the pistons from both sides, there are recesses—channels. And that, around the gaskets themselves (a hole for the shaft or a bearing), with a duct toward the inlet wherethrough fluid enters into the device). Channels i.e. grooves that can be of different dimensions, shapes, diameters and profiles, have to comply to the said device i.e. to the dimensions of the body of the piston accomodated in the given device. And that only so that it completely fulfills its purpose and therewith stability and efficiency of the said device are not reduced. This is done to unload; gaskets, holes for the shafts and the bearings (that are in the separating walls and covers) from the pressure of fluid in the device and it has a significant importance particularly with high and extremely high pressures.
Devices with rotary pistons are dimenzioned even so that there is a certain clearance between the pistons and internal surface of the piston chamber wherethrough the piston moves and also between the bodies of the rotary pistons itself. In such cases, efficiency of the device is reduced, to some extent, but the advantage of this solution is in that it enables the use of device with fluids which, therein, have only impurities (such as the sand is or some other impurity in the water or any other fluid with any other sort of impurity).
Invention can be used as a brake with a simultaneous closing (opening) of the drain and supply valve and therewith increases/decreases flow of fluids (and the most suitable are liquid fluids), and therewith the speed of rotating the shafts decreases (increases), or it is completely stopped at the moment of a complete closure of both valves. Herewith avoided is frictional braking with some braking systems. Herewith, with some braking systems, frictional braking is avoided.
Invention—device with rotary pistons can be used in internal combustion engines, primarily gas IC engines, whereby valves would be opened, at a certain position of pistons, at the input (connecting) sides of the piston housings and therewith mixture of air and fuel would be brought into a certain space of the piston chamber under a certain and for that function sufficient pressure and then immediately upon closing the valve, the spark plug would spark the mixture or in any other therefore appropriate, all this repeats during each revolving (cycle). Determination of the moment of the opening and closing the valve and the moment when the mixture is sparked would be electronically or mechanically carried out, or in any other thereto appropriate way.
Advantages of this invention are mainly in the facts; that herewith completely avoided are complex transformations of reciprocating motion into circular one and vice versa; that with devices having this type of a rotary pistons it is possible to obtain maximum torque; working process of these devices is uniform and efficiency is improved (higher percent of exploitation) as they have no idle run; that the noise is reduced; that shapes of rotary pistons, once or several times indented protrusions from one side or from both sides prevent the occurence of additional loading on the shafts during revolving, and particularly at high speeds; that auxiliary recesses on each to other engaged rotary pistons in their housing, during the working process, enable smooth transition of working protrusions from the zone of overpressure into the zone of underpressure, with no loss (i.e. with minor, irrelevant losses); that there is no direct contact among the pistons themselves nor with the housing, and therewith avoided is detrition (wearing out) and therewith prolonged is the working life; that the rotary piston (being important for the majority of their shapes and this is due to the function it carries out) is equally efficient whether revolving in one or in the other direction; that there is no need for complex systems for lubrication; that inside the piston housings at the separating wall and the cover i.e. elements that close the pistons from both sides, there are recesses, channels around the gaskets (holes for the shaft or around the bearings), so as to accomodate therein the quantity (the quantities being so small that, during the working process of the device, these would go through the separating wall—cover and the pistons) of fluid from the part of the piston housing wherein overpressure prevails and through the outlet it would be directed into the part of the piston housing wherein prevailing is underpressure (toward the inlet part) this is of significant importance particularly with high and extremely high pressures and for the purpose of protecting the gaskets and bearings and to prevent fluid from flowing into the adjacent housings or outside.
Invention is described in details in the examples of embodiment represented in the drawings where:
FIG. 1—shows a lateral view at the assembly with a pair of the gears and a pair of engaged double-sided working auxiliary rotary pistons A-G,
FIG. 2—shows a top view at the assembly,
FIG. 3—shows a front view at the assembly,
FIG. 4—shows an isometric drawing of the assembly,
FIG. 5—shows a cross section D-D from
FIG. 6—shows a cross section E-E from
FIG. 7—shows a cross section F-F from
FIG. 8—shows an isometric drawing of the cross section of the whole assembly as seen along the line of cross section F-F from
FIG. 9—shows a disassembled assembly from
FIG. 10—shows a lateral view at the assembly, as to the second embodiment, with one pair of gears and two pairs of double-sided working auxiliary rotary pistons E-G,
FIG. 11—shows a top view at the assembly,
FIG. 12—shows a front view at the assembly,
FIG. 13—shows an isometric drawing of the assembly,
FIG. 14—shows a cross section A-A from
FIG. 15—shows an isometric drawing of the cross section of the whole assembly along the line of cross section A-A from
FIG. 16—shows a cross section B-B from
FIG. 17—shows a cross section C-C from
FIG. 18—shows a cross section D-D from
FIG. 19—shows the assembly from
FIG. 20—shows a lateral view at the assembly, as to the third embodiment, with one pair of gears and two pairs of double-side working auxiliary rotary pistons E-G,
FIG. 21—shows a top view at the assembly,
FIG. 22—shows a front view at the assembly,
FIG. 23—shows an isometric drawing of the assembly,
FIG. 24—shows a cross section A-A from
FIG. 25—shows an isometric drawing of the whole assembly along the line of cross section A-A from
FIG. 26—shows a cross section B-B from
FIG. 27—shows a cross section C-C from
FIG. 28—shows a cross section D-D from
FIG. 29—shows a disassembled assembly from
FIG. 30—shows a lateral view at the assembly, as to the fourth embodiment, with one pair of gears and one pair of double-sided working auxiliary rotary pistons E-G,
FIG. 31—shows a top view at the assembly,
FIG. 32—shows a front view at the assembly,
FIG. 33—shows an isometric view of the assembly,
FIG. 34—shows a cross section A-A from
FIG. 35—shows a cross section B-B from
FIG. 36—shows a cross section C-C from
FIG. 37—shows a cross section D-D from
FIG. 38—shows the assembly from
FIG. 39—shows a lateral view at the assembly, as to the fifth embodiment, with one pair of gears and a pair of double-sided working auxiliary rotary pistons C-G,
FIG. 40—shows a front view at the assembly,
FIG. 41—shows a top view at the assembly,
FIG. 42—shows an isometric view at the assembly,
FIG. 43—shows a cross section A-A from
FIG. 44—shows an isometric drawing of the cross section of the whole assembly along the line of cross section A-A from
FIG. 45—shows a cross section B-B from
FIG. 46—shows a cross section C-C from
FIG. 47—shows the assembly from
FIG. 48—shows a lateral view at the assembly, as to the sixth embodiment, with one pair of gears and one pair of double-sided working auxiliary rotary pistons A-G,
FIG. 49—shows a top view at the assembly,
FIG. 50—shows a front view at the assembly,
FIG. 51—shows an isometric drawing of the assembly,
FIG. 52—shows a cross section A-A from
FIG. 53—shows an isometric drawing of the cross section of the whole assembly along the line of cross section A-A from
FIG. 54—shows a cross section B-B from
FIG. 55—shows a cross section C-C from
FIG. 56—shows a disassembled assembly from
FIG. 57—represents a front view at the assembly, as to the seventh embodiment, with one pair of gears and one pair of double-sided working auxiliary rotary pistons A-G,
FIG. 58—shows a top view at the assembly,
FIG. 59—shows a lateral view at the assembly,
FIG. 60—shows an isometric drawing of the assembly,
FIG. 61—shows a cross section A-A from
FIG. 62—shows an isometric drawing of the cross section of the whole assembly along the line of cross section A-A from
FIG. 63—shows a cross section B-B from
FIG. 64—shows a cross section C-C from
FIG. 65—shows a view of disassembled assembly from
FIG. 66—shows a top view of the assembly, as to the eighth embodiment, with five gears and two pairs of double-sided working auxiliary rotary pistons C-G
FIG. 67—shows a front view at the assembly,
FIG. 68—shows a lateral view at the assembly,
FIG. 69—shows an isometric drawing of the assembly,
FIG. 70—shows a cross section A-A from
FIG. 71—shows a cross section B-B from
FIG. 72—shows a cross section C-C from
FIG. 73—shows the assembly from
FIG. 74—shows a top view of the assembly, as to the ninth embodiment, with one pair of gears, one double-sided working rotary piston A and one double-sided auxiliary rotary piston G,
FIG. 75—shows a lateral view at the assembly,
FIG. 76—shows a front view at the assembly,
FIG. 77—shows an isometric drawing of the assembly,
FIG. 78—shows a cross section A-A from
FIG. 79—shows a cross section B-B from
FIG. 80—shows a cross section C-C from
FIG. 81—shows an isometric drawing of the cross section of the whole assembly along the line of cross section A-A from
FIG. 82—shows the assembly from
FIG. 83—shows a top view of the assembly, according to the tenth embodiment, with one pair of gears and one pair of double-sided working auxiliary rotary pistons A-G,
FIG. 84—shows a front view at the assembly,
FIG. 85—shows a lateral view at the assembly,
FIG. 86—shows an isometric drawing of the assembly,
FIG. 87—shows a cross section A-A from
FIG. 88—shows an isometric drawing of the whole assembly along the line of cross section A-A from
FIG. 89—shows a cross section B-B from
FIG. 90—shows a cross section C-C from
FIG. 91—shows the assembly from
FIG. 92—shows a top view at the assembly, as to the eleventh embodiment, with one pair of gears and one pair of double-sided working auxiliary rotary pistons F-H,
FIG. 93—shows a lateral view at the assembly,
FIG. 94—shows a front view at the assembly,
FIG. 95—shows an isometric drawing of the assembly,
FIG. 96—shows a cross section A-A from
FIG. 97—shows an isometric drawing of the cross section of the whole assembly through the section A-A from
FIG. 98—shows a cross section B-B from
FIG. 99—shows a cross section C-C from
FIG. 100—shows the assembly from
FIG. 101—shows a top view of the assembly, as to the twelfth embodiment, with three gears, one double-sided auxiliary rotary piston G and two double-sided working auxiliary rotary pistons A,
FIG. 102—shows a lateral view at the assembly,
FIG. 103—shows an isometric drawing of the assembly,
FIG. 104—shows a cross section D-D from
FIG. 105—shows an isometric drawing of the assembly
FIG. 106—shows a cross section B-B from
FIG. 107—shows a cross section C-C from
FIG. 108—shows a lateral view at the assembly, as to the thirteenth embodiment, with four gears, one double-sided auxiliary rotary piston G and three double-sided working rotary pistons A,
FIG. 109—shows a front view at the assembly,
FIG. 110—shows a top view at the assembly,
FIG. 111—shows an isometric drawing of the assembly,
FIG. 112—shows a cross section D-D from
FIG. 113—shows a cross section E-E from
FIG. 114—shows a cross section F-F from
FIG. 115—shows a view at disassembled assembly from
FIG. 116—shows a top view of the assembly, according to the fourteenth embodiment, with five gears, four double-sided working rotary pistons A and one double-sided auxiliary rotary piston G,
FIG. 117—shows a front view at the assembly,
FIG. 118—shows an isometric drawing of the assembly,
FIG. 119—shows a cross section A-A from
FIG. 120—shows an isometric drawing of the whole assembly along the line of cross section A-A from
FIG. 121—shows a cross section B-B from
FIG. 122—shows a cross section C-C from
FIG. 123—shows a view at disassembled assembly from
FIG. 124—shows a top view of the assembly, as to the fifteenth embodiment, with seven gears, six double-sided working rotary pistons A and one hexagonal auxiliary rotary piston G,
FIG. 125—shows a cross section H-H from
FIG. 126—shows a cross section G-G from
FIG. 127—shows a cross section K-K from
FIG. 128—shows isometric drawing of the assembly,
FIG. 129—shows a top view of the assembly, as to the sixteenth embodiment, with one pair of gears, one single-sided working rotary piston A and one single-sided auxiliary rotary piston G,
FIG. 130—shows a front view at the assembly,
FIG. 131—shows a lateral view at the assembly,
FIG. 132—shows an isometric drawing of the assembly,
FIG. 133—shows a section A-A from
FIG. 134—shows an isometric drawing of the whole assembly along the line of cross section A-A from
FIG. 135—shows a section B-B from
FIG. 136—shows a section C-C from
FIG. 137—shows a disassembled assembly from
FIG. 138—shows embodiment of the body 6 with working protrusions A and one auxiliary recesses G,
FIG. 139—shows embodiment of the body 6 with working protrusions B and auxiliary recesses G,
FIG. 140—represents embodiment of the body 6 with working protrusions D and auxiliary recesses G,
FIG. 141—represents embodiment of the body 6 with working protrusions F and auxiliary recesses H,
FIG. 142—represents cross section of the piston housings with a pair of double-sided working-auxiliary pistons A-G where the flow of fluid through the housing during the operation of the device is indicated,
FIG. 143—shows a front view at two double-sided working-auxiliary rotary pistons A-G, L—indicates the length of the pistons (all the pistons both working and auxiliary ones) in all the devices in Figures from 1 to 174.
FIG. 144—shows a top view at two double-sided working-auxiliary rotary pistons A-G,
FIG. 145—shows a lateral view at two double-sided working-auxiliary rotary pistons A-G,
FIG. 146—shows an isometric drawing of two double-sided working-auxiliary rotary pistons A-G,
FIG. 147—shows front view at two double-sided working-auxiliary rotary pistons B-G,
FIG. 148—shows top view at two double-sided working-auxiliary rotary pistons B-G,
FIG. 149—shows a lateral view at two double-sided working-auxiliary rotary pistons B-G,
FIG. 150—shows an isometric illustration of two double-sided working-auxiliary rotary pistons B-G,
FIG. 151—shows a front view at two double-sided working-auxiliary rotary pistons D-G,
FIG. 152—shows a top view at two double-sided working-auxiliary rotary pistons D-G,
FIG. 153—shows a lateral view at two double-sided working-auxiliary rotary pistons D-G,
FIG. 154—shows an isometric drawing of two double-sided working-auxiliary rotary pistons D-G,
FIG. 155—shows a front view at two double-sided working-auxiliary rotary pistons F-H,
FIG. 156—shows a top view at two double-sided working-auxiliary rotary pistons F-H,
FIG. 157—shows a lateral view at two double-sided working-auxiliary rotary pistons F-H,
FIG. 158—shows an isometric drawing of two double-sided working-auxiliary rotary pistons F-H,
FIG. 159—shows a front view at a double-sided working rotary piston A and a double-sided auxiliary working rotary piston G,
FIG. 160—shows a top view at a double-sided working rotary piston A and a double-sided auxiliary rotary piston G,
FIG. 161—shows a lateral view at a double-sided working rotary piston A and a double-sided auxiliary rotary piston G,
FIG. 162—shows an isometric drawing of a double-sided working rotary piston A and a double-sided auxiliary rotary piston G,
FIG. 163—shows front view at a single-sided working rotary piston A and single-sided auxiliary rotary piston G,
FIG. 164—shows a top view at a single-sided working rotary piston A and a single-sided auxiliary rotary piston G,
FIG. 165—shows a lateral view at a single-sided working rotary piston A and a single-sided auxiliary rotary piston G,
FIG. 166—shows an isometric drawing of a single-sided working rotary piston A and a single-sided auxiliary rotary piston G,
FIG. 167—shows a front view at a four-sided working rotary piston A and a four sided auxiliary rotary piston G,
FIG. 168—shows a top view at a four-sided working rotary piston A and a four-sided auxiliary rotary piston G,
FIG. 169—shows a lateral view at a four-sided working rotary piston A and a four-sided auxiliary rotary piston G,
FIG. 170—shows an isometric drawing of the four-sided working rotary piston A and a four-sided auxiliary rotary piston G,
FIG. 171—shows a front view at a three-sided working rotary piston A and a three-sided auxiliary rotary piston G,
FIG. 172—shows a top view at a three-side working rotary piston A and a three-sided auxiliary rotary piston G,
FIG. 173—shows a lateral view at a three-sided working rotary piston A and a three sided auxiliary piston G, and
FIG. 174—shows an isometric drawing of a three-sided working rotary piston A and a three sided auxiliary rotary piston G.
Rotary piston has a body 6 of a cylindrical-semicyllindrical shape, integrated with a shaft or with a hole in the centre that fits in the diameter of the shaft, with any (working) protrusion (A,B,C,D,E,F) or auxiliary recess (G,H) individually or combined with several protrusions and recesses as illustrated and explained in
Working longitudinal protrusion and/or protrusions is of a cylindrical-semicylindrical or other shape on the body 6 of the rotary piston, in parallel with an axis of the body 6 of the rotary piston, for easier identification of the shapes, each shape is separately marked with one of the following alphabets; “A” “B” “C” “D” “E” “F”.
Auxiliary longitudinal recess/recesses is a cylindrical-semicylindrical shape on the body 6 of the rotary piston, in parallel with an axis of the body 6 of the rotary piston, for facilitating the recognition, each shape is separately marked with one of the following alphabets such as; “G” “H”
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- (A) is a protrusion of a cylindrical-semicylindrical shape having a radius r i.e. a height v, in the devices according to the variants of embodiment: 1,4,6,7,9,10,12,13,14,15,16 and according to the figures from 138 to 141, then 142 to 146, 159 to 174,
- (B) is a protrusion, with a radius r, shaped as an indented (along the length) cylinder-semicylinder, with a radius R2 by a height v2, once from one side,
FIG. 139 , and from 147 to 150 - (C) is a protrusion, of a radius r, shaped as an indented (along the length) cylinder-semicylinder, with a radius R2 by a height v2, once per both sides in the devices according to the ways of embodiments: 5 and 8 in
FIGS. 39 to 47 and 66 to 73, - (D) is a protrusion, of a radius r, shaped as an indented (along the length) cylinder-semicylinder, with radii R2 and R3 by the heights v2 and v3, from both sides twice, as to the
FIG. 140 and from 151 to 154, - (E) is a protrusion, with a radius r, shaped as indented (along the length) cylinder-semicylinder, four times per both sides similar to the above shape “D”, except for being divided into four radii (R2,R3,R4 and R5) and four heights (v2,v3,v4 and v5), in the devices according to the embodiments: 2 and 3 in
FIGS. 10 to 29 , - (F) is a protrusion, of a radius r, in the shape of a truncated cylinder-semicylinder with a radius Rf by a height v, in
FIG. 141 , then in the device as to the eleventh embodiment inFIGS. 92 to 100 , - (G) is a recess in the shape of a cylinder-semicylinder, with a radius r, height v1 in the devices as to the embodiments: 1,2,3,4,5,6,7,9,10,12,13,14,15,16 and figures from 138 to 140, and then 142 to 154, 159 to 174,
- (H) is a recess, having a radius r1, shaped as a truncated cylinder-semicylinder where the length of a radius Rh extends, by a height v1—adjusted to the shape of the protrusion (F).
Rotary pistons are protrusions (A,B,C,D,E,F) and recesses (G,H) and also more protrusions and recesses (or by combination of any of the shapes) in the body 6, for the sake of clearer description, these are identified i.e. grouped as the following;
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- Double-sided working-auxiliary rotary piston has: a body 6 of a cylindrical-semicylindrical shape with a hole for the shaft in the centre, or it is integrated with a shaft, that has on itself two (working) protrusions (A,B,C,D,E, or F) and two (auxiliary) recesses of the shape (G or H) arranged in alteration by the angles of 90 DEG.
- Double-sided working rotary piston has a body 6 of a cylindrical-semicylindrical shape with a hole for the shaft in the centre or integrated as one part with the shaft, whereon are two (working) shaped protrusions (A,B,C,D,E or F), arranged at the angle of 180 DEG.
- Double-sided auxiliary rotary piston has a body 6 of a cylindrical-semicylindrical shape with a hole for the shaft in the centre or integrated as one part with the shaft, wherein are two (auxiliary) shaped recesses (G or H), arranged at the angle of 180 DEG.
- Single-sided working rotary piston has a body 6 of a cylindrical-semicylindrical shape with a hole for the shaft in the centre or integrated as one part with the shaft, whereon is one (working) shaped protrusion (A,B,C,D,E or F).
- Single-sided auxiliary rotary piston has a body 6 of a cylindrical-semicylindrical shape with a hole for the shaft in the centre or integrated as one part with the shaft, wherein is one (auxiliary) shaped recess (G or H).
- Three-sided working rotary piston has a body 6 of a cylindrical-semicylindrical shape with a hole for the shaft in the centre or integrated as one part with a shaft, whereon are three (working) shaped protrusions (A,B,C,D,E, or F), arranged at the angles of 120 DEG.
- Three-sided auxiliary rotary piston has a body 6 of a cylindrical-semicylindrical shape with a hole in the centre for the shaft or integrated as one part with the shaft, wherein are three (auxiliary) shaped recesses (G or H), arranged at the angles of 120 DEG.
- Four-sided working rotary piston has a body 6 of a cylindrical-semicylindrical shape with a hole for the shaft in the centre or integrated as one part with the shaft, whereon are four (working) shaped protrusion (A,B,C,D,E, or F), arranged at the angles of 90 DEG.
- Four sided auxiliary rotary piston has a body 6 of a cylindrical-semicylindrical shape with a hole for the shaft in the centre or integrated as one part with the shaft, wherein are four (auxiliary) recesses (G or H), arranged at the angles of 90 DEG.
According to the invention, rotary pistons are shaped to have various protrusions and recesses (represented in figures from 138 to 174 and in the devices from
In the following (outlined) four examples of the cross section the explanation for the embodiment of the four main shapes (of working) protrusions and two main shapes (of auxiliary) recesses together with the body is given, and according to these are achieved the shapes used in the devices represented in
Body 6 having (working) protrusions A; (auxiliary) recesses G, represented in
Body 6 having (working) protrusions B; (auxiliary) recesses G, represented in
Body 6 having (working) protrusions D; (auxiliary) recesses G, represented in
Body 6 having (working) protrusions F; (auxiliary) recesses H, represented in
General explanation according to the invention, either in the case of an assembly comprising two or more gears engaged over the shaft with two or more bodies (with a working i.e. auxiliary recesses), on the way of functioning, being applicable for variant solutions, that would be as the following: bodies 6 with (working) protrusions A,B,C,D,E or F and auxiliary (recesses) G or H, said shortly rotary pistons in the piston housings 11-11a, with its top and bottom flat surfaces are in the contact line with the inside surfaces of the separating walls 7-7a and covers 1-1a, that close the pistons (and can have even bigger clearance when used for fluids with impurities); bodies 6 are firmly connected (or integrated as one part with shafts) over the shafts 4-5-5a with gears 10-10a being set in the gear housing 9 (wherein there is a certain quantity of oil, the quantity is sufficient for lubrication) where engaged to each other are driving gears 10a-10 with one or more driven gears 10 and are aimed to transmit power and align the revolvment of rotary pistons, where the piston housing 11-11a and the gear housing 9 are separated by the separating wall 7-7a whereon are holes for the shafts 4-5-5a; revolving together with the body 6 (working) protrusions A,B,C,D,E, or F slide with its tips (along the contact line) along the internal side of the piston housing (and can have higher clearance when used for fluids with impurities) developing therewith the underpressure (a certain degree of vacuum) and in front these exert thrust or the thrust is exerted thereto (when used as a turbine or a motor, etc.); auxiliary recesses G and H are intended to enable smooth transition of (working) protrusions from the zone of overpressure to the zone of underpressure and at the same time to obstruct the flow of fluids from the zone of overpressure into the zone of underpressure: in the piston housing (11-11a) there can be present even a certain quantity of oil that would enable more complete sealing and improved efficacy (there can be even a constant flow of the appropriate quantity of the cooled oil intended, among other things, for cooling the device provided that it is needed) when the device functions as a vacuum pump or a compressor; inlet-outlet holes 20 for piston housings 11 or at the rear cover 1 are either of different shapes or round with a thread, so that the installation connections can be screwed therein.
Firm connection between the body 6 of rotary pistons and shafts 4-5-5a, or gears 10-10a and shafts 4-5-5a respectively can be achieved in any known and thereto appropriate way. These can be integrated in one part: body with the shaft 4-5-5a or the gear 10-10a with the shaft 4-5-5a. Bearings 2 wherein embedded are the shafts in the assemblies, can be of various types and are chosen as to the dimensions and toughness or resistance against anticipated loadings and temperatures and as to the lubrication methods, and depending on the intended use of the device (ball bearings, roller bearings, needle bearings, sliding bearing and other bearings . . . )
Shafts 4-5-5a of the device wherein are bodies 6 with pistons and gears 10-10a, are embedded therein; the separating wall 7 in the centre of the device, and the rear cover 1-1a that close the piston housing and the pistons themselves; then, embedded are in the separating wall 7 in the centre, and the front cover 12 that close the gear housing 9; embedded in the front cover 12 and the rear cover 1; embedded only in the separating wall 7 that separates the gear housing 9 from the piston housing 11. In some embodiments, when the device is integrated as one part with an engine (or a generator) there can be used an elongated shaft of the engine (or a generator), which is already embedded, carrying on itself one rotary piston and one gear per given device.
In all the assemblies, the gaskets 8 are chosen as to the type of fluid, then depending on their toughness to pressure and temperature (heat) that these are exposed to and can be of all types (suitable for desired assemblies).
Depending on the type of material, intended use and other functional characteristics of the device such as: speed of fluid flow, type of fluid, pressures of fluid (small-high or extremely high) and the heat that the fluids either have or develop during the working process, are important factors to determine: all the dimensions of the piston housings 11-11a; all dimensions of the separating walls 7-7a; all dimensions of rear covers 1-1a; all dimensions of bodies 6; all dimensions and shapes of working protrusions (A,B,C,D,E,F) and auxiliary recesses (G,H); all types of shafts 4-5-5a; all dimensions and types of gears (10,10a) that can be of any, but for the given devices only the appropriate shape; and all the dimensions of type and number (for example on the assemblies for high pressures more screws are required and vice versa) above others, for the given assemblies of the chosen and fitting to each other elements complying with the set out requirements.
Elements of the assembly of the device; rear covers 1-1a of the piston housings, front covers 12 of the gear housings, separating walls 7, gear housings 9, piston housings 11-11a, each of these being achieved separately, or several elements achieved integrally such are; the rear cover 1 integrated with the piston housing 11-11a; the front cover 12 integrated with the gear housing 9; the separating wall 7 integrally achieved with the gear housing 9; separating wall 7 integrally achieved with the piston housing 11, and this is important when making decision about the manufacturing process, when the choice of the most favorable one for the anticipated assemblies is being made.
Connecting all the parts to each other (housings, covers, separating walls), into the solid connection can be achieved in all the known and for the given assemblies appropriate ways.
Assemblies can consist elements (piston, housing, separating wall, cover . . . ) that are made, or of various types of materials (alloys) or combination of two or more types of material. Considering, e.g. that pistons are in a part or as entirely made of some type of rubber that (to a certain rate) compensates possible presence of some foreign bodies (rigid impurities) in the fluid during the working process.
Inside the piston housing 11-11a, at the separating wall 7-7a and the rear cover 1-1a, i.e. elements that close the rotary pistons from both sides, are made channels 25 (see in the second and the third embodiments of the device) being achieved circularly around the gaskets 8 itself and around the hole for the shaft i.e. the bearing 2, with the protrusion toward the duct 20 that inlets fluid into the device, and can be of different dimensions, shapes, diameters and profiles correlated in the said device. This is done so that it completely fulfills its purpose and therewith it makes no damage to the stability and efficiency of the given device. It is recommended that in all devices recesses or channels are worked out. This is done to unload the protection of gaskets 8, holes for the shaft and bearings 2, that are in the separating walls and covers from the fluid pressure inside the device and this has significant importance particularly with high and extremely high pressures.
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Claims
1. Device with rotary pistons that can be used as a compressor, a pump, a vacuum pump, a turbine, a motor and as other driving and driven hydraulic-pneumatic machines, consists of piston housings 11, 11a with inlet-outlet connections 20, a gear housing 9, a separating wall 7, a front cover 12 with a hole for the shaft and a rear cover 1 which are connected to each other by bolts 16 that go through holes and are screwed in the body of the rear cover 1, is characterized in, that it consists of four gears (10) and one driving gear (10a) firmly fixed on a shaft (4) embedded in a separating wall (7) and the front cover (12) by bearings (2), two pairs of double-sided working-auxiliary rotary pistons (C-G) set in the housings (11 and 11a), that the double-sided working-auxiliary rotary piston (C-G) has a body (6) with a hole for a shaft (5), two working protrusions (C) on the tops indented once per each side and two auxiliary recesses (G), where the housings (11,11a) of the pistons and the gear housing (9) are separated by the separating wall (7) whereon the holes for the shaft (5) are embedded in the rear cover (1) and the front cover (12) by bearings (2), auxiliary guides (22), that direct precise alignment of the elements when connecting, are grooved in appropriate holes on the elements, the gaskets (8) are in the separating wall (7), the front cover (12) and the rear cover (1), while the bolts (15) are screwed in the holes (15a) on the front cover (12) and the gear housing (9). FIG. 66-73
2. Device according to claim 1 and the eighth embodiment, is characterized in, that in the piston housing (11) is set one pair of double-sided working-auxiliary rotary pistons (A-G) which has the body (6) with two working protrusions (A) and two auxiliary recesses (G), each from other arranged in alteration at the angles of 90 DEG and through the shafts (4,5) firmly connected to the gears (10) in the gear housing (9). FIGS. 1-9
3. Device according to claim 1 and the second and the third embodiment, is characterized in, that per one of the housings (11,11a) is set one pair of double-sided working-auxiliary rotary pistons (E-G) of different lengths, firmly connected through the shafts (4,5) with gears (10) in the gear housing (9), where the gaskets (8) are set in the front cover (12), and the rear cover (1) and the separating walls (7,7a), that the double-sided working auxiliary rotary pistons (E-G) have bodies (6) with two working semicylindrical protrusions (E) and two auxiliary semicylindrical recesses (G) arranged in alternation at the angles of 90 DEG, that the channels (25) are positioned in separating walls (7,7a) and the rear cover (1) where the housing (9) for gears (10) is achieved in one part with the front cover (12), the housing (11) for pistons (E-G) in one part with the separating wall (7) and the housing (11a) for pistons (E-G) in one part with the rear cover (1), whereby the housing (11) and the housing (11a) are separated from each other by the separating wall (7a), the shafts (4,5) are embedded in the bearings (2) in the separating wall (7) and the rear cover (1). FIG. 10-29
4. Device according to claim 1 and the fourth embodiment, is characterized in, that its shape is cylindrical with a pair of gears (10) and a pair of double-sided working-auxiliary rotary pistons (A-G) which has bodies (6) achieved in one part with the shaft in the housing (11) and the body (6) with a hole for the shaft in the housing (11a), that the piston housings (11, 11a) are achieved with inlet outlet recesses (20c, 20a), rear covers (1,1a) with inlet outlet connections (20) and small covers (23) that cover bearings (2), gear housing (9) is achieved in one part with separating wall (7), housings (11,11a) connected to each other by bolts (16,16b) to the body of the housing (11a), bolts (15) are screwed in the holes (15a), bolts (16d) go through thereto matching holes (16dx) on the cover (1) and the piston housing (11) and are screwed in the separating wall (7), bolts (16c) go through thereto matching holes (16cx) on the cover (1a) and are screwed in the body of the housing (11a), and the bolts (16a) go through the holes (16ax) on the small covers (23) and are screwed in the covers (1,1a), while the ring washers (3) in the separating wall (7a) support the gaskets (8) leaning therewith against the circlips (24), and the ring washers (3) in the covers (1, 1a) support the gaskets (8), the sealing rings (28) are set in the recesses (28a). FIG. 30-38
5. Device according to claim 1 and the sixth embodiment, is characterized in, that its shape is cylindrical with a pair of gears (10) and a pair of double-sided working-auxiliary rotary pistons (A-G), that the device has piston housing (11) with inlet outlet recesses (20a), gear housing (9) achieved in one part with the front cover (12), the separating wall (7) and the rear cover (1) with inlet-outlet connections (20), connected to each other by bolts (16) to the body of gear housing (9), bolts (16a) go through the holes on the small covers (23) and are screwed in the rear cover (1), bolts (16b) go through the holes (16bx) on the rear cover (1) and the piston housing (11) and are screwed in the separating wall (7) wherein the ring washers (3) support the gaskets (8) rested on the circlips (24), in the rear cover (1) ring washers (3) rested on the the bearings (2) support the gaskets (8) and the keys (29) are in the recesses on the shafts (4,5), sealing rings (28) are set in the recesses (28a). FIG. 48-56.
6. Device according to claim 1 and the seventh embodiment has in the piston housing (11) set one pair of double-sided working-auxiliary rotary pistons (A-G) which are, through the shafts (4,5), firmly connected to the gears (10), where the piston housing (11) and the gear housing (9) are separated from each other by the separating wall (7) whereon are holes for the shafts (4,5) embedded by the bearings (2) in the separating wall (7), and in the front cover (12) achieved circularly with eccentric semi-circular protrusion and the separating wall (7) are gaskets (8), is characterized in, that the shafts (4,5) are embedded in the separating wall (7). FIG. 57-65
7. Device according to claim 1 and the ninth embodiment, is characterized in, that it is with one double-sided working rotary piston (A) which has the body (6) achieved in one part with the shaft (4) and one double-sided auxiliary rotary piston (G) which has the body (6) achieved in one part with the shaft (5) being firmly connected to the pair of gears (10), where the piston housing (11) with inlet outlet recesses (20a), gear housing (9) is achieved in one part with the front cover (12) with the hole for the shaft (4) to go through, the separating wall (7) and the rear cover (1), with the holes for the shafts (4,5) embedded in the front cover (12) and the rear cover (1) by bearings (2), on the front cover (12) and the rear cover (1) are holes for the shaft (4), bolts (16a) go through the holes on the small covers (23) and are screwed in the rear cover (1), in the separating wall (7) ring washers (3) support the gaskets (8) leaned against the circlips (24), in the rear cover (1) the ring washers (3) support the gaskets (8) rested therewith on the bearings (2), keys (29) are in the recesses on the shafts (4,5) and the sealing rings (28) are set in the recesses (28a) on the housings (11,9), while the auxiliary guides (22) that direct precise alignment of the elements when connecting, while the bolts (15) are screwed into the holes (15a) on the front cover (12) wherein are threaded openings (33). FIG. 74-82
8. Device according to claim 1 and the tenth embodiment, with the pair of gears (10) and the pair of double-sided working-auxiliary rotary pistons (A-G), double-sided working-auxiliary rotary piston (A-G) has the body (6) achieved in one part with the shaft (4), two working protrusions (A) and two auxiliary recesses (G), is characterized in, that the piston housing (11) with inlet outlet recesses (20a) is achieved in one part with the separating wall (7), shafts (4,5) embedded in the rear cover (1) and the separating wall (7) by bearings (2), the gaskets (8) are in the separating wall (7), the rear cover (1) and the front cover (12) with a hole for the shaft (4), bolts (16b) go through the holes or openings (16c) on the rear cover (1) and are screwed in the body of the housing (11), bolts (16a) go through the holes (16z) on the housing (9) and are screwed in the separating wall (7), the sealing ring (28) is set in the recess (28a) on the housing (11). FIG. 83-91
9. Device according to claim 1 and the eleventh embodiment, is characterized in, that with the pair of double-sided working-auxiliary rotary pistons (F-H) which has the body (6) countersunk from one and annularly reinforced from the other side, two working protrusions (F) of a truncated semicircle indented once per each side and two auxiliary recesses (H), the piston housing (11) achieved in one part with the rear cover (1) and inlet-outlet connections (20), then the gear housing (9), the separating wall (7) and the front cover (12) achieved circularly with a hole for the shaft (4) and a semicircular protrusion on one side, the shafts (4,5) embedded in the front cover (12) and the separating wall (7) by the bearings (2), the auxiliary guides (22) that direct precise alignment of the elements of the device and the gaskets (8) are in the separating wall (7) and the front cover (12), the ring washer (3) is set between the bearings (2) and the sealing element (8) in the front cover (12). FIG. 92-100
10. Device according to claim 1 and the twelfth embodiment, is characterized in, that it has two double-sided working rotary pistons (A) that has the body (6) countersunk from both sides, with a central hole for shafts (5), one double-sided auxiliary rotary piston (G), through the shafts (5,4), firmly connected to the gears (10), whereby the piston housing (11) and the gear housing (9) are separated from each other by the separating wall (7) with the holes for the shafts (4,5) embedded by the bearings (2) in the rear cover (1) with inlet-outlet connections (20) and the front cover (12), while the gaskets (8) are in the separating wall (7) and the front cover (12) with a hole for the shaft (4). FIG. 101-107
11. Device according to claim 1 and the thirteenth embodiment, is characterized in, that it has three double-sided working rotary pistons (A), one double-sided auxiliary rotary piston (G), that are in the piston housing (11) set three doubles-sided working rotary pistons (A) and one double-sided auxiliary rotary piston (G) that are through the shafts (5,4) firmly connected to four gears (10). FIG. 108-115
12. Device according to claim 1 and the fourteenth embodiment, is characterized in, that it has four double-sided working rotary pistons (A) and one double-sided auxiliary rotary piston (G) that are through the shafts (5,4) firmly connected to five gears (10). FIG. 116-123
13. Device according to claim 1 and the fifteenth embodiment, is characterized in, that it has six double-sided working rotary pistons (A) one hexagonal auxiliary rotary piston (G) in the centre, that are through the shafts (5,4) firmly connected to six gears (10) and one gear (10a). FIG. 124-128
14. Device according to claim 1 and the sixteenth embodiment, is characterized in, that a pair has one single-sided working rotary piston (A) and one single-sided auxiliary rotary piston (G) that are through the shafts (5,4) firmly connected to the gears (10). FIG. 129-137
15. According to claim 1 and the second embodiment, is characterized in, that there are recesses (25) on the separating walls (7,7a) and the rear cover (1). FIG. 10-19
16. Device according to claims 2, 4, 5, 6, 8, is characterized in, that the body (6) has two working protrusions (A) and two auxiliary recesses (G).
17. Device according to claim 1, is characterized in, that the body (6) has two working protrusions (C) i two auxiliary recesses (G).
18. Device according to claim 9, is characterized in, that the body (6) has two working protrusions (F) and two auxiliary recesses (H).
19. Device according to claims 7, 10, 11, 12, is characterized in, that the body (6) has two working protrusions (A).
20. Device according to claims 7, 10, 11, 12, is characterized in, that the body (6) has two auxiliary recesses (G).
21. Device according to claim 14, is characterized in, that the body (6) has one working protrusion (A).
22. Device according to claim 14, is characterized in, that the body (6) has one auxiliary recess (G).
23. Device according to claim 3, is characterized in, that the body (6) has two working protrusions (E) indented four times per each side and two auxiliary recesses (G). FIG. 10-29
24. Device according to claim 1 and the eighth embodiment, is characterized in, that the body (6) has two working protrusions (A) and two auxiliary recesses (G). FIG. 66-73
25. Device according to claim 1 and the eighth embodiment, is characterized in, that the body (6) has two working protrusions (B) and two auxiliary recesses (G).
26. Device according to claim 1 and the eighth embodiment, is characterized in, that the body (6) has two working protrusions (E) and two auxiliary recesses (G).
27. Device according to claim 1 and the eighth embodiment, is characterized in, that the body (6) has two working protrusions (F) and two auxiliary recesses (H).
28. Device according to claim 1 and the first embodiment, is characterized in, that the body (6) has two working protrusions (B) and two auxiliary recesses (G). FIG. 1-9
29. Device according to claim 1 and the first embodiment, is characterized in, that the body (6) has two working protrusions (C) and two auxiliary recesses (G).
30. Device according to claim 1 and the first embodiment, is characterized in, that the body (6) has two working protrusions (E) and two auxiliary recesses (G).
31. Device according to claim 1 and the first embodiment, is characterized in, that the body (6) has two working protrusions (F) and two auxiliary recesses (H).
32. Device according to claim 1 and the first embodiment, is characterized in, that one body (6) has two working protrusions (A) and the other body (6) has two auxiliary recesses (G).
33. Device according to claim 1 and the first embodiment, is characterized in, that one body (6) has two auxiliary protrusions (B) and the other body (6) has two auxiliary recesses (G).
34. Device according to claim 1 and the first embodiment, is characterized in, that one body (6) has two working protrusions (C) and the other body (6) has two auxiliary recesses (G).
35. Device according to claim 1 and the first embodiment, is characterized in, that one body (6) has two working protrusions (E) and the other body (6) has two auxiliary recesses (G).
36. Device according to claim 1 and the first embodiment, is characterized in, that one body (6) has two working protrusions (F) and the other body (6) has two auxiliary recesses (H).
37. Device according to claim 1 and the first embodiment, is characterized in, that one body (6) has one working protrusion (A) and the other body (6) has one auxiliary recess (G).
38. Device according to claim 1 and the first embodiment, is characterized in, that one body (6) has one working protrusion (B) and the other body (6) has one auxiliary recess (G).
39. Device according to claim 1 and the first embodiment, is characterized in, that one body (6) has one working protrusion (C) and the other body (6) has one auxiliary recess (G).
40. Device according to claim 1 and the first embodiment, is characterized in, that one body (6) has one working protrusion (E) and the other body (6) has one auxiliary recess (G).
41. Device according to claim 1 and the first embodiment, is characterized in, that one body (6) has one working protrusion (F) and the other body (6) has one auxiliary recess (H).
Type: Application
Filed: Jan 29, 2009
Publication Date: Feb 3, 2011
Inventor: Zivoslav Milovanovic (Krnjevo)
Application Number: 12/935,647
International Classification: F01C 1/18 (20060101);