Abstract: An apparatus for compressing or pumping fluid includes a housing having an interior chamber. The housing includes an end wall having a fluid inlet and a fluid outlet. A rotating cam is rotatably mounted within the interior chamber and includes a cam body having an end with a sloped annular channel formed therein. The apparatus also includes am end vane slidably mounted within a slot in the end wall so as to extend into the sloped annular channel for sliding therein as the rotating cam rotates. The end vane divides the sloped annular channel into an inlet chamber and an outlet chamber such that, as the rotating cam rotates, the inlet chamber expands and communicates with the fluid inlet for receiving the fluid, and the outlet chamber contracts and communicates with the fluid outlet for expelling the fluid.

Abstract: The present invention provides for a toroidal motor comprising a centrally located output shaft, a circular plate centrally and transversely affixed to the output shaft, a toroidal cylinder located in the same plane as and to the outside edge of the circular plate, pistons affixed to the outside edge of the circular plate and residing in the toroidal cylinder. A circular timing track may be used to time the action of a knife gate assembly which may be configured to induce a camming action in the knife gate assembly, rotating the knife gate into the toroidal cylinder, blocking the cylinder just behind a passing piston. Pressurized fluid may be introduced between the knife gate and the rear of the immediate downstream piston to cause a differential pressure to propel the piston through the toroidal cylinder.

Abstract: The present disclosure includes an engine having a torodial piston chamber, at least one piston positioned in the torodial piston chamber, and at least one engine valve positioned to interact with the torodial piston chamber.

Abstract: An apparatus for facilitating combustion in a rotary engine with planetary rotors orbiting inside a housing containing a main rotor. In various embodiments, the planetary rotor has a multi-faceted face that engages a bridge during the transition from the compression cycle to the combustion cycle with the bridge and face forming a dynamic seal; the planetary rotor has a face engaging a bridge during the transition from the compression cycle to the combustion cycle such that the bridge and face have a gap that allows gas flow from the trailing volume to the leading volume and the gap is sufficiently small to quench flame propagation from the leading volume to the trailing volume; and/or the face of the planetary rotor opposite a fuel injector has a pocket that allows the fuel cloud to expand without impinging or wetting the face of the planetary rotor.

Abstract: The rotary engine includes a circular stator, a circular rotor rotating about the stator; the rotor and the stator being separated by a circular cylinder and at least one element with two flanges. The rotor includes two compression pistons attached to the inner surface of the rotor. These two pistons are located at the two extremities of a first diameter of the rotor and kept substantially in contact with the outer surface of the stator. The stator includes a recess at each extremity of a diameter. Each recess forms a compression chamber with the compression piston positioned at the end of the recess in the direction of rotation of the rotor and one of the flanges of the element with two flanges, referred to as the cylinder head flange. The motive force is applied to the compression piston when the pressure of the gases inside the compression chamber is suddenly increased to a predefined value.

Abstract: The rotary-piston machine consists of two operating units. The first one comprises a horizontal operating cylinder (1) with cylindrical shaft (5), connected to the main shaft (4) and sealed with rings to the walls of the cylinder (1). The shaft (5) has a first friction element (9) pressed against the internal wall of the cylinder (1). The second unit comprises a cylindrical body (15) mounted to the main shaft (4) with a firmly connected to its circumference inner ring (16) of a bearing with an outer ring (17) provided of an articulated joint (18) connected to a frame (19) that is connected to a valve (13) which press a second friction element (14) to the shaft (5). Both units move in synchronization.

Abstract: A rotary motion device having piston valves that define an open region that are adapted to engage a power tooth of the power ring as the power ring rotates around the piston valves and the piston valves rotate about their own separate axis that is fixed with respect to the base housing of the device. The power ring is provided with radially inward and outward ports in one form that are adapted to communicate with radially inward and outward ports of a static member of the device. The ports are utilized to compress and expand a gas and in one form are utilized for an internal combustion chamber to create an internal combustion rotary motion device.

Abstract: An apparatus for an aspiration plate for a rotary internal combustion engine. The engine has three rotating members that orbit about the center of a three-armed rotor as the rotor rotates within a housing with three lobes. The tips of the rotating members engage the lobes and a circular cutout in the rotor as the rotor rotates. A back, or aspiration, plate includes inlet and exhaust ports that are sequentially opened and closed by the rotating members and rotor as they move within the housing. A front plate rotates with the rotor and separates the combustion chambers from a planetary gear assembly that ensures the alignment of the rotating members as they orbit the rotor shaft. Fuel is injected after the compression cycle is initiated.

Abstract: A roller vane pump for fluid includes a carrier which is rotatable in a housing about an axis of rotation, the carrier carrying a plurality of roller vanes which are each received in a respective slot which extends inwardly of a periphery of the carrier and permits the roller to move inwardly and outwardly in use, the housing surrounding the carrier, pumping chambers being formed between the rollers, the carrier and the housing, the rollers engaging with the housing and moving inwardly and outwardly of their respective slots as the carrier rotates, in response to the configuration of the housing so that the pumping chambers change in volume as the carrier rotates, to effect pumping of the fluid, from an inlet to an outlet of the pump, and wherein in each of the slots in which the rollers are received, there is provided a restrictor element which restricts movement of the roller inwardly of its respective slot.

Abstract: The present invention is an apparatus that includes a chamber rotor with a chamber and an extension rotor with an extension. The rotors are housed in a rotor case. A pressure cavity is at least transiently formed by the extension rotor and the chamber rotor. The present invention also includes a compressor that includes a chamber rotor with a chamber and an extension rotor with an extension where the extension is adapted to be received in the chamber when the rotors are synchronously rotated. The compressor also includes a power input shaft attached to the extension rotor and a gear assembly attached to the rotors that is adapted to insure the synchronous rotation of the rotors. A rotor case houses the rotors and has an intake port and an exhaust port. The present invention also includes an engine that is similar to the compressor and includes a spark plug. Methods of compressing, pumping and generating electricity and mechanical power are also part of the present invention.

Abstract: A circular, reversible steam powered engine configured to force pistons mounted in circular housing assembly and coupled to a main shaft to create a work load. The steam powered engine is arranged to pipe steam of a high pressure into steam chambers to force pistons forward and push exhaust steam of a low pressure out of steam chambers. Gears rotate and engage with pistons to start and stop steam flow into timing valves and steam flow portions. The engine creates a torque required to effectively operate many types of loads, such as those for vehicle and equipment applications.

Abstract: A rotary motion device having piston valves that define an open region that are adapted to engage a power tooth of the power ring as the power ring rotates around the piston valves and the piston valves rotate about their own separate axis that is fixed with respect to the base housing of the device. The power ring is provided with radially inward and outward ports in one form that are adapted to communicate with radially inward and outward ports of a static member of the device. The ports are utilized to compress and expand a gas and in one form are utilized for an internal combustion chamber to create an internal combustion rotary motion device.

Abstract: An apparatus for a rotary internal combustion engine. The engine has three rotating members that orbit about the center of a three-armed rotor as the rotor rotates within a housing with three lobes. The tips of the rotating members engage the lobes and a circular cutout in the rotor as the rotor rotates. A back plate includes inlet and exhaust ports that are sequentially opened and closed by the rotating members and rotor as they move within the housing. A front plate rotates with the rotor and separates the combustion chambers from a planetary gear assembly that ensures the alignment of the rotating members as they orbit the rotor shaft. Fuel is injected after the compression cycle is initiated.

Abstract: An internal combustion rotary engine includes a housing having an inlet and an outlet and a rotatable rotor centrally mounted within the housing. The rotor includes a plurality of pockets located about its circumference, the rotor further being connected to a rotor shaft. A rotatable elliptical body is disposed in each of the plurality of pockets. Each rotatable elliptical body is coupled to respective planet gears and each respective planet gear is meshed with a centrally disposed fixed sun gear. An ignition source is disposed in each of the plurality of pockets for igniting a fuel/air mixture. During operation of the internal combustion rotary engine, for each 360° rotation of the rotor, each elliptical body rotates through 720°.

Abstract: The rotary piston power system includes a housing having a drum and a cover rotatably mounted on the drum. The drum has high pressure and low pressure ports defined in its peripheral wall and a central separator wall having arcuate end faces and a pair of semicylindrical recesses defined in opposing sidewalls. A pair of pistons are rotatably mounted on axles on opposite sides of the separator wall and fit closely between the separator wall and the peripheral wall. Each piston has a plurality of radially disposed cylindrical recesses defining slots in the piston's peripheral wall. The cover has a plurality of radially disposed vanes extending into the drum defining a number of cylinders or chambers double the number of recesses defined in a single piston. An input/output shaft extends from the opposite side of the cover for coupling to a prime mover or to a load.

Abstract: The invention relates to propulsion engineering and particularly to internal-combustion engines. The problem solved by the present invention is improving fuel efficiency and ecological compatibility, as well as providing the ability to set advance ignition at higher rotation, increasing the rotation frequency of the working shaft and decreasing its vibration, thus making the manufacture of such engines more cost effective. This problem is solved by the operational rotor being oval-shaped when viewed in cross-section, whilst the compression rotor being square-shaped when viewed in cross-section.

Abstract: An apparatus for a rotary internal combustion engine. The engine has three rotating members that orbit about the center of a three-armed rotor as the rotor rotates within a housing with three lobes. The tips of the rotating members engage the lobes and a circular cutout in the rotor (1002) as the rotor rotates. A back plate includes inlet and exhaust ports that are sequentially opened and closed by the rotating members and rotor as they move within the housing. A front plate rotates with the rotor and separates the combustion chambers from a planetary gear assembly that ensures the alignment of the rotating members as they orbit the rotor shaft. Fuel is injected after the compression cycle is initiated.

Abstract: An apparatus for a rotary internal combustion engine. The engine has three rotating members that orbit about the center of a three-armed rotor as the rotor rotates within a housing with three lobes. The tips of the rotating members engage the lobes and a circular cutout in the rotor (1002) as the rotor rotates. A back plate includes inlet and exhaust ports that are sequentially opened and closed by the rotating members and rotor as they move within the housing. A front plate rotates with the rotor and separates the combustion chambers from a planetary gear assembly that ensures the alignment of the rotating members as they orbit the rotor shaft. Fuel is injected after the compression cycle is initiated.

Abstract: A non-reciprocating engine comprising a hollow cylindrical shaft driver (13) located in a cylindrical stator cavity (14) of a stator. A number of expansion chambers (43) form between the outer wall of the shaft driver, the stator wall and movable dividers (25) which extend from the stator to bear on the shaft driver. The expansion chambers expand and contract during operation of the engine. An output shaft passes centrally through the stator cavity and shaft driver and has offset bearings (34) which bear on the inside surface of the shaft driver. Inlet ports in a removable inlet end plate of the stator allow pressurised air or air/fuel mixture, for example, to be introduced into the expansion chambers. Sequential expansion and contraction of the chambers around the circumference of the shaft driver causes a combination of orbital and rotational movement of the shaft driver and consequential rotation of the output shaft.

Abstract: A rotary machine having a housing with rotary components disclosed within. The rotary machine is configurable as an internal combustion rotary engine, an external combustion rotary engine, a gas compressor, a vacuum pump, a liquid pump, a drive turbine, or a drive turbine for expandable gases or pressurized liquids. The combustion engine employs a new thermal cycle—eliminating the Otto cycle's internal compression of the combustion products as part of the cycle. The new combustion thermal cycle is intake, expansion and exhaust.

Abstract: The present invention is an apparatus that includes a chamber rotor with a chamber and an extension rotor with an extension. The rotors are housed in a rotor case. A pressure cavity is at least transiently formed by the extension rotor and the chamber rotor. The present invention also includes a compressor that includes a chamber rotor with a chamber and an extension rotor with an extension where the extension is adapted to be received in the chamber when the rotors are synchronously rotated. The compressor also includes a power input shaft attached to the extension rotor and a gear assembly attached to the rotors that is adapted to insure the synchronous rotation of the rotors. A rotor case houses the rotors and has an intake port and an exhaust port. The present invention also includes an engine that is similar to the compressor and includes a spark plug. Methods of compressing, pumping and generating electricity and mechanical power are also part of the present invention.

Abstract: A rotary piston assembly including a piston housing with a central axis, and an annular chamber defined about the central axis. A pair of pistons are disposed about 180 degrees apart from one another within the annular chamber and rotate about the central axis a first angular velocity. The assembly also includes an abutment housing including a gap defined in its peripheral wall structure, and structured to rotate about an abutment axis at a second angular velocity. The abutment housing overlaps the piston housing and rotates therethrough to define an interior chamber therebetween, the first and second angular velocities being defined relative to one another so that the gap of the abutment housing rotates through the annular chamber when each of the pistons passes into and out of the interior chamber, thereby allowing the pistons to pass into and out of the interior chamber through the gap.

Abstract: A rotary vane pumping machine includes a stator and rotor in relative rotation. The rotor has a plurality of radial vanes slots and each one of a corresponding plurality of vanes slides within a radial vane slot of the rotor. Each pair of adjacent vanes defines a vane cell. A rotary scavenging disk is disposed along the stator circumference, and is sized such that the rotary scavenging disk extends into the vane cell. An outer circumferential edge of the rotary scavenging disk is in sealing proximity with an outer circumferential edge of the rotor and recesses within the rotary scavenging disk mesh and seal with the extending and retracting vanes.

Abstract: A positive displacement pump apparatus includes a housing formed of a housing wall including a wall portion; a pump center line; a pump drive shaft extending through the wall portion coaxially with the pump center line and having a terminus within the housing adjacent the wall portion; a rotatable disc disposed in the housing adjacent the wall and secured to the terminus to be rotated by the drive shaft about the pump center line; and a vane mounted eccentrically on the disc for travel along a circular arc as the disc rotates. The vane has a vane axis about which the vane rotates relative to the disc; and two opposite, axially spaced first and second radial sides. The vane is mounted on the disc at the first radial side. The vane further has two opposite, radially spaced axial sides. The distance of the vane axis to either of the axial sides is greater than the distance from the pump center line to the vane axis.

Abstract: An improved rotary combustion engine is provided with a cylindrical intake and compression housing and a cylindrical combustion and exhaust housing. Each of the housings contain variable volume spaces defined by the inner surface of elliptically shaped openings in the housings, the outer surface of a rotor within the opening, fusiform shaped pistons and end walls perpendicular to the common axis of the cylinder and the rotor. The stages are coaxial and separated by a disk valve. The rotors within each housing are attached to the engine shaft. The pistons are supported in bearings mounted in end plates which are attached to the rotors. The attitude of the pistons is controlled during engine rotation by cams at each end of the engine. A mixture of fuel and air is drawn through one of two ports into variable volume spaces in the intake and compression housing by the relative motion of rotor and pistons. Further rotation seals the spaces and compresses the mixture.

Abstract: A rotary machine, with no reciprocating parts, for expansion motors and pumps includes a machine housing, a flattened, cylindrical flywheel disposed within the housing, a piston secured to one side of the flywheel, a flattened, cylindrical plate positioned to the underside of the flywheel, the plate including a toroidal channel in the outer portion of the plate for disposing the piston within the toroidal channel, a recess portion in the middle of the plate, one inlet port entering through the main shaft with an aperture at the back side of the piston with said inlet port disposed within the toroidal channel, and two exhaust ports within the plate with one aperture of each of said exhaust ports disposed within the toroidal channel, two rotating valves contained within the recess portion of the plate, said rotating valves secured to secondary shafts, a main shaft secured to the flywheel and the secondary shafts for providing output power from the engine.

Abstract: A positive displacement pump apparatus includes a housing formed of a housing wall including a wall portion; a drive shaft extending through the portion and having a terminus within the housing adjacent the wall portion; a rotatable disc disposed in the housing adjacent said wall and being secured to the terminus to be rotated by the drive shaft; and a vane mounted eccentrically on the disc for travel along a circular arc as the disc rotates. The vane is rotatable about a vane axis relative to the disc. Further, a gearing is provided in the housing adjacent the wall portion for coupling the vane with the drive shaft to effect rotation of the vane about the vane axis, whereby the vane moves, in the circular arc, through a positive displacement portion of movement and a non-positive displacement portion of movement.

Abstract: A rotary engine is provided with a rotary piston that is rotatively mounted within a housing. The rotary piston includes a surrounding circumferential edge that is provided with a series of distinct depressions formed therein. Formed in the housing outwardly of the rotary piston is a pair of valve housings with each valve housing including a rotary valve mounted therein. Each of the rotary valves are driven in time relationship to the rotary piston. As the rotary piston rotates within the housing, there is a series of chambers defined between respective depressions and the housing. Moreover, as the rotary piston and rotary valves rotate, they cooperate to form four separate chambers around the rotary piston, including combustion, exhaust, intake, and compression chambers. In the embodiment illustrated herein, for each revolution of the rotary piston, there are two compression, intake, exhaust and combustion cycles or phases.

Abstract: The invention is an air compressor and a gas expander. The compressor/expander has an inner chamberwall-forming member attached eccentrically to a drive shaft and being rotatable with it, an outer chamberwall-forming member attached eccentrically to the drive shaft and being rotatable with it, and a plurality of stator vanes positioned concentrically about the drive shaft between the inner and outer chamberwall-forming members. The stator vanes are each rotatable about an axis extending parallel to the drive shaft. The inner and outer chamberwall-forming members and stator vanes coact to define a plurality of chambers which vary in size with the rotation of the stator vanes and the chamberwall-forming members. A stationary end wall for the compressor/expander provides a stationary end wall for each chamber, and valve means are positioned in the stationary end wall of the compressor/expander to enable the inflow and outflow of air into and out of each chamber.

Abstract: A basic rotary vane mechanical power system, suitable for engines, pumps, compressors and the like, having an enclosed chamber housing a rotating hub plate, with the hub plate assembly supporting a plurality of spaced apart rotary vanes rotating on their own separate shafts and carried in a circular path by the hub plate assembly. The rotation of the hub plate assembly imparts rotation of the plurality of vanes within the enclosed, tight-fitting chamber, the angular rotation of the vanes being one-half of the angular velocity at which the hub plate and power shaft are rotating and transmitting power, or some other suitable ratio. During rotation of the vanes, the volume between the vanes increases and decreases, so that the volume of fluid within that space is contracted or expanded to drive the system or provide a source of power to the system or the working fluid.

Abstract: A self starting, quick start-up rotary steam/internal combustion engine and a rotary hydraulic motor, with a positive displacement, powered through 360.degree. of each revolution and comprising: a flattened cylindrical flywheel with two diametrically opposed, retractable, hinged power vanes that move through a 90.degree. rotation; a drive shaft connected to the flywheel; an engine housing covering the flywheel, power chamber, exhaust chamber and transition chamber; a "combination backstop for the power chamber and lifter/release for the power vanes"; and means for a continuous internal generation of steam, means for a continuous internal combustion and means for introducing pressurized hydraulic fluid into the power chamber.

Abstract: A positive displacement pump-motor-meter has a housing structure and a rotor disposed within and supported by the housing structure in a rotatable arrangement about an axis of rotation, wherein the combination of the housing structure and the rotor provides a toroidal cavity encircling the axis of rotation and having cross sectional area varying from a maximum value at the 12 o'clock position to a minimum value at the 6 o'clock position, which toroidal cavity houses a plurality of planar vanes disposed therealong in an axisymmetric arrangement about the axis of rotation and supported by the rotor member in a revolvable arrangement about respective axes of revolution, of wherein the revolving motion of each of the plurality of vanes about its respective axis of revolution is coupled to the rotating motion of the rotor about the axis of rotation in such a way that the vane revolves at an angular speed equal to one half of the angular speed of the rotor, whereby each of the plurality of planar vanes substantiall

Abstract: A rotary apparatus for use as a pump, motor, meter, or fluid brake is disclosed. A stationary base member has a circular fluid channel with a pair of spaced fluid inlet and outlet ports within the channel. A rotor having a hollow cylindrical body portion substantially surrounds the base member and encloses the channel and has one or more peg-like piston members extending inward from the inner periphery of the rotor. The pistons are received in the channel and separate the channel into one or more enclosed fluid chambers and sequentially pass over the inlet and outlet ports. A ring gear on the inner periphery of the rotor engages a smaller gear rotatably mounted on the base member which is connected to a disc-shaped divider for rotating the divider in timed relation with the rotor upon relative rotation. The divider rotates partially in the channel and is recessed on its side wall to receive and travel in coordinated movement with the pistons during travel in the channel.

Abstract: An oilless double rotor, rotary gas compressor with second stage inputs for precompressed gas is described. A compression rotor having at least three lobes which match in intersection to cavities in a counterrotating valving rotor providing an extended sealing surface. The lobes further provide an extended, near-contact surface with the housing with adjacent lobes defining successive compression chambers. Second stage ports are also provided for input of precompressed gas for use with energy recovery systems. A discharge equalization passage is provided in association with a discharge port for efficient gas exhaust.

Abstract: A positive displacement single expansion steam expander engine. Cylinder heads are fixed to the wall of the engine. A rotatable power shaft assembly has a plurality of nests. Received in each of the nests is a free-floating piston (nonengaged) having lobes which allows free movement of the pistons in the nests.

Abstract: A motor/pump includes a cylindrically shaped rotor journaled within a similarly shaped housing to define an annular fluid passageway therebetween. The annular passageway is divided into a plurality of discrete fluid chambers by mobile blocking members which are mounted on the rotor near its periphery and stationary blocking members which extend outwardly from the housing to block fluid passage. Both types of blocking members are preferably free to rotate in place. Fluid inlets and outlets positioned around the annular chamber alternately pressurize and depressurize the chambers formed by the blocking members. The stationary blocking members are coupled to the rotor for synchronous rotation to allow passage of the mobile blocking members thereby. One preferred embodiment includes dampeners in the fluid inlets and outlets so that rotation of motor/pump can be controlled to provide the desired motor/pump characteristics.

Abstract: A planetary system, mounted within a housing, is the basis of manufacturing a motor, a pump, or a fluid flow meter. The housing is provided with an inlet and an outlet. The planetary system comprises: a cylindrical core (1) and its axis (2), two discs (9) mounted on the two bases of the core, the planets (4) rotated into special circular recesses of the core, and the transmission system (gears 11-14) giving motion to the planets. When a motor is used to rotate the shaft (2), the planetary system is converted into a pump since it sucks (depending on the supply) air or liquid from the inlet and discharges the same under pressure at the outlet. When on the other hand the inlet of the planetary system is connected to a duct containing a fluid under pressure, the planetic system is converted into a flow meter or a hydraulic motor or a gas motor, for liquids or gases respectively. If as depicted in FIG.

Abstract: A single rotary pump is provided with a driven valve having outer curved faces and inner curved recesses along the major axis thereof, a rotary piston having vanes between which there are semi-ellipses having raised portions therebetween, said valve being driven by an external source to cause rotation of said piston whereby liquid under pressure flows from an inlet of the pump to an outlet of the pump.

Abstract: A rotor (30) is formed to include a plurality of recesses (42, 44), each of which engages a portion of a rotary piston (36, 38). The remaining portions of the rotary pistons (36, 38) project radially outwardly from the periphery of the rotor (30) to a position contiguous the inner surface of a peripheral stator wall (14). The peripheral stator wall (14) includes a plurality of endwardly projecting lobes (156, 158). The lobes (156, 158) are elongated axially of the engine and present convex surfaces of circular curvature which conform in size and shape to concave pockets (46, 48) formed in side portions of the rotary pistons (36, 38). During rotation of the rotary assembly the piston pockets (46, 48) move into and then out from a meshing engagement with the lobes (156, 158). One of the lobes (156) carries an igniter (154). An explosive lean mixture (168) is drawn into the side pocket (46) of a piston (36) as the piston ( 36) moves past an inlet opening (150).

Abstract: An impelling mechanism that can be operated as a single-stage compression or expansion positive-displacement rotary engine or compressor. The impelling mechanism has a housing defined by an upper casing and a lower casing. An annular shaped swept volume chamber is formed in the upper casing. A plurality of blade members are pivotally supported on a disc-shaped rotor that is keyed to a shaft passing through the housing. These blade members travel within the swept volume chamber and have their attitude maintained at the same orientation throughout the 360 degrees of revolution of the rotor. The blade members each have a crankshaft attached to their bottom ends which have a first crankshaft throw and a second crankshaft throw. These crankshaft throws are journaled in the finger portions of their respective blade control yokes. These blade control yokes have their axis of rotation laterally offset from the axis of the drive shaft and their own axes are 90 degrees offset from each other.

Abstract: A rotary fluid machine of the kind that is to be actuated by any fluid under pressure in which a rotor (15) carrying a piston member (15.sub.4) rotates continuously when the machine is in operation about the axis (AA1) of an annular chamber (21), the piston member (15.sub.4) is geared to rotary obturators (17.sub.A 17.sub.B) that rotate in sealing chambers 21.sub.1 in an annular member 21.sub.2 projecting into the annular chamber 21 about an axis (BB1, CC1) substantially parallel to said axis (AA1) of the annular chamber (21) and the rotary obturator has a recess into which a part of the piston enters during rotation to provide a working section in the cylinder as working fluid is fed to the piston. The machine is characterized in that the piston member (15.sub.

Abstract: A rotary compressor of the type in which a female rotor and a male rotor turn in opposite directions in the compressor casing, the female rotor having at least one pocket therein that receives at least one lobe on the male rotor, the lobe sweeping a cylindrical side wall of the casing to effect compression of a gas. A sealing rib is provided on the female rotor on the trailing side of the pocket, and a recess is provided on the male rotor at the rear of the lobe for receiving this rib. The female rotor has a peripheral surface extending rearwardly from the rib with respect to the direction of rotation of the female rotor, and terminating in the same or a different pocket, this peripheral surface being spaced a substantial distance radially inwardly of the surrounding cylindrical side wall of the casing, the rib sweeping this side wall with close clearance and hence effecting a portion of the compression of the compressor.

Abstract: A rotary engine has separate combustion chambers and expansion chambers. A two-step combustion cycle provides for a burning step in the combustion chambers, and a separate combustion step in the expansion chambers. During operation, the rotary engine compresses air for use in a fuel injection supply.

Abstract: A rotary engine having two opposite rotating rotors forming a substantial part of a toroidal chamber such that the toriodal chamber is parted into two lateral parts formed by an outer rotor having a disk-like part forming one side of the chamber and a lateral flange forming the outside and an inner rotor having a disk like part and a center hub forming the inside of the chamber, the rotors each having half cylinder shaped piston pockets which rotatably receive half cylinder shaped pistons that are rotatably supported on their rotors. The pistons are rotated in the same direction with respect to each other and are carried around the toroidal chamber by the rotors as they rotate in opposite directions on the rotors forming an expansion chamber between the pistons as they rotate. The pistons are rotated by stationary gears and the pistons pass each other in the expansion chamber twice on each rotation of the engine. The axis of rotation of the pistons is parallel to the axis of rotation of the rotors.

Abstract: The present invention teaches a novel internal combustion engine wherein a unique structural means of transmitting combustion-generated forces and motion is incorporated. A journalled rotor assembly having combustion cavities in each of opposing faces thereof receives a combustible fluid. A main cam carried by an output shaft which is integral with the rotor assembly drives intermittent-motion cams carried on transfer shafts. Transfer plates integral with the transfer shafts and captively movable within housings rotate into and out of the combustion cavities so as to define the variable working volumes of each cavity. With each of the firings, the rotor is caused to spin in a direction opposite with respect to the relative rotational direction of the respective transfer plates.

Abstract: A rotary machine with lenticular pistons and valves usable for internal and external combustion engines, expansion motors and pumps. A flat central stator housing is provided with two lateral cover housings. A plurality of rotating elements enclose the interior of the stator housing and rotate on stationary parallel shafts pivoted on bearings inside the cover housing. The parallel shafts are interconnected by a synchronizing gear train which causes the shafts to rotate in one direction and at the same angular speed. A cylindrical central cavity extends in the central stator housing throughout its entire thickness, and intersects smaller cylindrical equidistant surfaces distributed around the periphery. The cylindrical equidistant surfaces contact the cavity by a rotor-piston with lenticular cross section with associated valves also of lenticular cross section and surrounding the rotor-piston. The rotor-piston and rotor valves maintain continuous contact and form hermetic chambers of variable volumes.

Abstract: A rotary pump has a housing providing an annular passageway in which vanes carried by a rotor move in a circular path. The vanes are in the form of circular discs on the outer ends of radial shafts rotatably mounted in a hollow hub portion of the rotor. The annular passageway of the housing has a pumping portion of circular cross section with a diameter equal to that of the vanes and a sealing portion having a cross section corresponding to the cross section of the vanes. The angular orientation of the vanes is cyclically controlled so that the vanes are orthogonal to the passageway when in the pumping portion and are in line with the passageway when in the sealing portion. Control is effected by means of two separate rollers on an eccentric inner extension of each of the vane shafts. One roller engages a stationary annular cam coaxial with the rotor axis.

Abstract: An internal combustion engine wherein a rotor is turnable within a housing while having an outer periphery which defines a circular channel with an inner periphery of the housing, the rotor having a pair of diametrically opposed projections end surfaces of which fluid-tightly and slidably engage the inner periphery of the housing. At least a pair of rotary members are connected with the housing while having a sealed, fluid-tight engagement therewith, these rotary members extending into the channel between the inner periphery of the housing and the outer periphery of the rotor and having a fluid-tight engagement with the outer periphery of the rotor. The rotary members are respectively formed with pockets which receive the projections as each projection moves past each rotary member.

Abstract: This invention relates to a rotary engine that functions without internal gears, off-centered rotors, reciprocating pistons, crankshafts, trochoidal chamber, chains, nor belts. (While no claim can be made on missing parts, the fact that such conventional parts are missing is one of the reasons that make this invention different from prior arts, and, therefore, it is so listed.) The preferred embodiment, comprising multipurpose rotors, paired dams, combustors, turbines, etc., could be made small enough to run a lawn mower or large enough to fly a big air plane. It uses a modified form of combustors, wherein combustion takes place amid ample air, thus promoting a fuller combustion of fuel at a lower temperature than in conventional rotary and reciprocating piston engines. Consequently, this invention has a surprisingly low amount of CO, NO.sub.x, and unburnt hydrocarbons in its exhausts.