Abstract: A fuel gas feed and ignition apparatus for a gas engine (1) with a combustion chamber includes a number of injection channels (37), a main fuel gas feed line (24) for main fuel gas in which a main fuel gas valve (21) is arranged, and a number of torch channels (52) for hot combustion gas connected to a pre-combustion chamber (15), wherein an ignition fuel supply line (17) leads to the pre-combustion chamber (15) and a pre-combustion chamber valve (18) is arranged in the ignition fuel supply line (17). Control of both the time and the duration and thus also the quantity of the injection of main fuel gas, as well as of ignition fuel for the pre-combustion chamber completely independently of one another and in a precise and, above all, rapid manner is achieved in that both the main fuel gas valve (21) and the pre-combustion chamber valve (18) are embodied as an electrically-actuated, electronically-controlled valve.

Abstract: An apparatus to deliver rotation power to a shaft delivering mechanical rotation power, by a cavity that is formed by a spherical or cylindrical housing. A Rotor attached to a shaft, centrally rotating inside the housing along the center line of the rotation of the housing. A combustion chamber is formed inside the housing by a blade like Blocker and the blade like Rotor to ignition takes place. The ignition chamber expands radially providing rotational power to the shaft.

Abstract: This invention is to provide a rotary internal combustion engine, which comprises a stationary cylinder connected with a shell, a plurality of piston claw clamps being movably provided on said stationary cylinder, a rotatable power output shaft pivotally provided on said shell, and an are plate being fixed on said power output shaft within said shell, and a plurality of piston claw clamps being movably provided on a movable cylinder; wherein three pistons are rotating circumferentially in said movable cylinder and are clamped and released in turn cyclically by said piston claw clamps upon running, respectively, so as to switch working modes sequentially; and a plurality of spring cups are provided outside of said movable cylinder and each has a spring with a push rod provided therein such that said piston claw clamps can be controlled by said arc plate through said spring cups and said push rods.

Abstract: A rotary engine includes a compressor having a first rotor, a first hinged vane, an air intake port and an air outlet and an expander having two-way check valve, a second rotor, a second hinged vane, a one-way check valve, a compressed air tank and a compressed air valve interposing between the compressor and the expander, where the first and second rotors have a first end contacting a housing and the other end spaced apart from the inner surfaces of the housing, where the first and second hinged vanes have one end hinged to the housing and the other end contacting outer surfaces of the rotating rotor for operation, and a combustion chamber formed as an airtight space by a depressed surface of the housing of the expander and a surface of the hinged vane.

Abstract: A rotary engine includes a casing having a large circular boring, a small circular boring, whereby the small circular boring interconnects with the large circular boring. A piston rotor is carried in a rotating manner within the large circular boring in the casing. A power head, ported to pass exhaust gases thru it's hollow center shaft, is carried in a rotating manner within the small circular boring in the casing. The piston rotor and the power head are meshed together to properly rotate during operation, with the piston rotor rotating counterclockwise and the power head rotating clockwise. A second powerhead can also be used.

Abstract: A rotary piston engine is provided that combines most of the advantages of an internal combustion engine with those of a turbine engine. The rotary piston engine improves on the existing internal combustion and turbine technology by achieving the same or better high end performance, while improving the efficiency during off-peak operations. The rotary piston engine includes an engine housing, at least one continuous cylinder doughnut, piston pedals, movable wall valves, at least one rotor and at least one point of rotation.

Abstract: The disclosure provides engines or pumps that includes a rotatable shaft defining a central axis A, the shaft having a first end and a second end. The shaft can have an elongate first island disposed thereon. The first island can have a body with a volume generally defined between front and rear surfaces that are spaced apart. The front and rear surfaces can lie in a plane parallel to a radial axis R. The perimeters of the front and rear surfaces can define a curved perimeter surface therebetween. The engine or pump can further include a front side plate disposed adjacent to the front surface of the first island, and a rear side plate disposed adjacent to the rear surface of the first island. The engine or pump also includes a first contour assembly disposed between the front side plate and the rear side plate.

Abstract: The disclosure provides engines or pumps that includes a rotatable shaft defining a central axis A, the shaft having a first end and a second end. The shaft can have an elongate first island disposed thereon. The first island can have a body with a volume generally defined between front and rear surfaces that are spaced apart. The front and rear surfaces can lie in a plane parallel to a radial axis R. The perimeters of the front and rear surfaces can define a curved perimeter surface therebetween. The engine or pump can further include a front side plate disposed adjacent to the front surface of the first island, and a rear side plate disposed adjacent to the rear surface of the first island. The engine or pump also includes a first contour assembly disposed between the front side plate and the rear side plate.

Abstract: Method and apparatus for oil-less engine with a revolving rotor are shown. Oil-less engine allows manufacturers to build environmentally safer oil-free engines, with fewer engine parts and at reduced costs of manufacturing. In one embodiment, the present invention is a method of internal combustion in an oil-less engine casing. The method is, revolving a multi-angular rotor around a center point to sequentially combust with each of a plurality of fireheads, revolving in a manner that each side of the multi-angular rotor successively achieves a top dead center position with a respective firehead. A firehead is a combination of a sparking means, a fuel injector and an air injector.

Abstract: In a rotary engine 1, a flywheel rotor 4 is arranged inside a cylinder 2 formed inside a housing 3 of the rotary engine, and together with forming a circular space 7 between the flywheel rotor 4 and the inner wall 6 of the cylinder, is integrated into a single unit with a piston head 8 that comes in contact with the inner wall 6. From the upstream side in the direction of rotation of the rotor, an exhaust valve 60, an explosion pressure stopper valve 40 and a fuel-intake and circular-space closing valve 20 are provided in the cylinder 2, and each of these valves operate via active pins 24, 44, 64 engaged in guide grooves 30, 50 on the outer surface of the rotor and guide groove 71 on a cam 70 on the output shaft 5, to execute each of the processes intake-exhaust, compression and explosive combustion.

Abstract: An inverse displacement asymmetric rotary engine is provided which includes a chamber. The chamber includes a stationary island having an island outer surface. The outer surface is an elongated convex shape. The island includes a crankshaft port spaced from a center of the island. The chamber includes a front-plate attached to a front surface of the island. A concave shaped movable contour is include, which is biased toward the island outer surface and which revolves about the island. A working volume is defined between an inner surface of the contour and the outer island surface. At least one front-plate engaging bearing is provided, which extends from a front surface of the movable contour and over a guide edge of the front-plate. The front-plate engaging bearing engages the guide edge during a combustion cycle.

Abstract: The rotary reciprocating piston engine as a rotor rotatably journaled in a housing and a plurality of pistons movable in radial direction in the rotor between outer and inner dead points. Each piston has a piston rod mounted on a transverse shaft carrying at each end a sliding element which is displaceable in radial grooves formed in the rotor on both sides of the piston. The sliding elements are each provided on the outer side thereof facing away from the piston with a pin received in a housing-fixed star-shaped endless guide groove. The guide groove extends about the axis of rotation of the rotor and controls the movement of the pistons in radial direction between the inner and outer deadpoints.

Abstract: A rotary internal combustion engine including a rotor assembly and a shaft, whereby the rotor assembly is mounted upon the shaft. The rotary internal combustion engine also includes a first vane assembly and a second vane assembly. A casing assembly houses the rotor assembly. In addition, a cooling system includes first and second sides. The cooling system houses the casing assembly. Furthermore, a first plate assembly mounts onto the casing assembly and the cooling system at the first side, and a second plate assembly mounts onto the casing assembly and the cooling system at the second side.

Abstract: A positive displacement rotary system may include a main rotor and a slotted rotor. The main rotor can include an interior cavity and a fixed vane (or blade) that is attached to the peripheral and side walls of that cavity. The slotted rotor is positioned within the main rotor interior and includes a slot for the main rotor blade. The main and slotted rotors rotate about parallel axes that are offset from one another. As the rotors turn, separate chambers are formed between the blade and an inter-rotor seal, with the inter-rotor seal located at or near a rolling contact between the outer surface of the slotted rotor and an inner perimeter wall of the main rotor cavity. The separate chambers contract and expand as the rotors rotate.

Abstract: A rotary piston engine includes a generally triangular rotor, a pair of side housings, a rotor housing which is assembled with the rotor and the pair of side housings to define three working chambers, an intake port formed in at least one of the side housings, and an exhaust port formed in at least one of the side housings. The length of one side of the triangular face of the rotor is at least 2.4 times the breadth of the rotor.

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 inverse displacement asymmetric rotary engine is provided which includes a chamber. The chamber includes a stationary island having an island outer surface. The outer surface is an elongated convex shape. The island includes a crankshaft port spaced from a center of the island. The chamber includes a front-plate attached to a front surface of the island. A concave shaped movable contour is include, which is biased toward the island outer surface and which revolves about the island. A working volume is defined between an inner surface of the contour and the outer island surface. At least one front-plate engaging bearing is provided, which extends from a front surface of the movable contour and over a guide edge of the front-plate. The front-plate engaging bearing engages the guide edge during a combustion cycle.

Abstract: The rotary piston type internal combustion engine (E1) comprises an output shaft (1), a rotor (2), a housing (4), an annular operation chamber (5) formed by the rotor and housing on at least one side of the rotor in the axial direction of the output shaft for constituting an intake operation chamber, a compression operation chamber, a combustion operation chamber, and an exhaust operation chamber, a pressuring/pressured member (6) provided to the rotor for partitioning the annular operation chamber, two operation chamber partitions (7, 8) provided to the housing for partitioning the annular operation chamber, biasing mechanisms for biasing the operation chamber partitions toward their respective advanced positions, an intake port (11), an exhaust port (12), and a fuel injector (14), wherein the pressuring/pressured member (6) is constituted by an arc-shaped partition having first and second inclined surfaces and the operation chamber partitions (7, 8) are each constituted by a reciprocating partition reciproc

Abstract: The problems of prior compressor structures relying upon conventional check valves are obviated by using, instead, flow control passages which operate to control flow while avoiding mechanical moving elements which may become problematical.

Abstract: An engine is disclosed including at least one piston which is positioned within a toroidal piston chamber. A method of operating an engine is disclosed wherein a piston is advanced in a toroidal piston chamber past a first valve and the first valve is closed to form a first ignition chamber area located within the piston chamber between the first valve and the rear side of the piston. A second valve is closed ahead of the piston to form a first exhaust removal chamber area located within the piston chamber between the second valve and the front side of the piston, the exhaust removal chamber including exhaust gases from a preceding ignition which occurred in the first ignition chamber area. A fuel mixture is introduced into the first ignition chamber area and ignited thereby advancing the piston further along the toroidal piston chamber.

Abstract: A non-reciprocating circular engine includes a casing, a power-compression piston and an intake-exhaust piston connected to a central hub and movable along a circular path, a power-exhaust gate and a compression-intake gate each rotatable about an axis and configured to automatically open and close according to a position of at least one of the pistons, and a compression chamber located between the gates and comprising a recession formed into the casing. The engine is configured so that, in every cycle, only the power-compression piston provides a power stroke and compresses a gas for combustion, and only the intake-exhaust piston provides for intake of gas and exhaust of combustion gases.

Abstract: A rotary piston machine 10 includes an enclosure 12 having a cavity 14 therein with arcuate side walls 16a,b,c defining a plurality of arcuate recesses 18a,b,c and a piston member 20 rotationally disposed in the cavity 14. The piston member 20 includes opposite ends 42 and 43 configured to rotationally engage the arcuate side walls 16a,b,c and the arcuate recesses 18a,b,c such that compression chambers 26a,b,c are ultimately formed via the piston member ends 42 and 43 cooperatively engaging two arcuate recesses 18a,b,c.

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: A novel combustion engine with turbine like properties is disclosed. The novel engine (10) comprises an air intake, a first compressor stage, coupled to the air intake, a second compressor stage, coupled to the first compressor stage, a transfer valve, placed between the compressor stages and an annular race. Within the annular race, toroidal piston travels and passes over the transfer valve. The valve, toroidal piston and race form a temporary combustion chamber that expands as the piston travels within the annular race. Compressed air and fuel are introduced into the temporary combustion chamber and ignited to release the chemical energy and force the turbine piston to travel faster within the annular race. The first compressor stage is rotatably coupled to a crank shaft, which drives the first compressor stage and connects to an armature, which also connects the turbine piston so that useful work can be extracted from the energy released from the combustion of the fuel-air mixture.

Abstract: An improvement structure of the rotary engine mainly includes three parts. One is that at least a combustion chamber and an outlet are set on the perimeter of a steam wheel/flywheel. Under the optimum condition, a propelling chamber is set additionally in the front of combustion; chamber, and a platform is elongated in the rear for lasting the thrust force then driving out the exhaust gas. There is an explosion per rotation, and it also can be designed to be multiple explosions per rotation. And, an explosion chamber is set on the slide block in the outer side of steam wheel/flywheel and supported on the frame through screws. Besides it is able to adjust the advanced sparking time of inletting, the rest strokes except of aforementioned combustion chamber are all set with protruding faces on top to block the inlet to prevent the entering of flammable gas.

Abstract: A rotary piston and cylinder assembly having two rotary piston and cylinder devices, each device including a rotor and a stator, the stator at least partially defining an annular cylinder space, the rotor being in the form of a ring, and the rotor having at least one piston which extends from the rotor ring into the annular cylinder space. In use the at least one piston is moved circumferentially through the annular cylinder space on rotation of the rotor relative to the stator, the rotor body being sealed relative to the stator, and the device further having cylinder space shutter means which is capable of being moved relative to the stator to a closed position in which the shutter means partitions the annular cylinder space, and to an open position in which the shutter means permits passage of the at least one piston, the cylinder space shutter means including a shutter disc, wherein the devices are connected by a transfer passage.

Abstract: The rotary engine includes a cylinder body having a cylinder chamber, an intake port, an exhaust port, and a spark plug, and a rotor which is received in the cylinder chamber to eccentrically rotate while coming into contact at seal faces thereof with an inner circumferential contact wall of the cylinder chamber to thereby implement intake, compression, expansion, and exhaust strokes. The rotor has an elliptical outer contour, and the inner circumferential contact wall of the cylinder chamber coincides with a specific curve, which is described by opposite apexes of the elliptical rotor in a direction of a major axis, when the rotor eccentrically rotates. The intake port and exhaust port are provided with opening/closing valves, respectively. Sealing performance between the cylinder chamber and the rotor may achieve an enhancement in the efficiency of fuel combustion and engine output and prevent waste of fuel.

Abstract: The present invention is directed to an internal combustion engine for making suction, compression, explosion, expansion and exhaust strokes in an operating chamber of variable volume defined between a housing and a piston. The internal combustion engine includes: an independent combustion chamber of fixed volume, formed in the housing and provided with a fuel supply device, for independently producing combustion therein; at least one communication passage for communicating the independent combustion chamber with the operating chamber of variable volume; and a control valve for allowing introduction of compressed air from the operating chamber into the independent combustion chamber and providing injection of combustion gas from the independent combustion chamber into the operating chamber at specified timing. The internal combustion engine is configured to independently produce main combustion without communication with the operating chamber.

Abstract: The casing (1) of a positive displacement machine has a cylindrical internal surface (3) delimiting an operating chamber which accommodates an orbiting piston (4) having a cylindrical external surface. At least one of the said surfaces, e.g. the internal surface (3), is at least partly constituted by a peripheral wall (2) having a front surface facing the operating chamber and a rear surface. The peripheral wall (2) having through-slots (22) which extend parallel to one another and accommodate respective compliant strips (24) extending from the front surface to the rear surface. The strips (22) are retained in the slots (22), against pressure in the operating chamber, by a retaining device such as a clamping member (28). An assembly of three positive displacement machines and engines comprising first and second positive displacement machines are also described.

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: A novel rotary engine of the kind having a toroidal cylinder and a set of pistons on a rotating circular piston assembly provides instantaneous adjustment of the displacement volume of the engine by varying the intake and expansion stroke length on the circular path of the pistons through the opening and closing of valves into the engine cylinder under the control of an engine management system responsive to the speed/load conditions of the engine and the throttle position.

Abstract: A circular column-shaped flywheel rotor 4 that rotates inside a rotor housing 1 in which a cylindrical-shaped hollow section is formed; a piston head 34 that is located on the flywheel rotor 4 so that it can come in sliding contact with the inner peripheral wall of the rotor housing 1 or be released from sliding contact; an intake valve 10 and airtight-sealing valve 21 that are constructed so that they are capable of partitioning and dividing a combustion chamber or opening up the combustion chamber; a spark plug 16; and an exhaust valve 28 that is located so that it is capable of connecting or disconnecting the combustion chamber with the outside; and whereby linking these components with the rotating movement of the piston head 34, performs air intake, compression, combustion expansion (explosion) and exhaust, to obtain rotational power output from the output shaft 6 that supports the flywheel rotor 4.

Abstract: This is simple and efficient rotary machine that can be implemented as compressor, pump, motor and mainly as internal combustion engine. The engine comprises a housing, a rotor(s) with a radial blade(s), a chamber(s) swept by the blade(s), an intersecting planar valve(s) with slot, and a combustion chamber. Blades and slots have matching shapes that allow the traversal of the blades through the slots with negligible loss of air/gases. After traversing the slot, the blade aspires air into one side of the chamber while compresses air on the other side. Fuel is injected in the compressed stream in its way to the combustion chamber, where it is ignited. In a double-rotor implementation, combustion gases are then introduced in the second rotor chamber, just after its blade has traversed the corresponding slot. One side of this blade is pushed by the expansion while the other expels gases from the previous stroke.

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: A rotary engine includes a round wheel, which has a shaft pivoted on a frame to provide kinetic force during rotating, wherein the round wheel is provided with a plurality of axial pockets, each of which has a leading plane. At least one block is located at a lateral side of the wheel, which keeps stable contact with the side surface of the wheel by use of elastic force provided by a spring mounted on a screw. The block has an intake chamber and a combustion chamber, which are opposite to pockets of the wheel to form quasi cylinders. At least two rollers are fixed on the frame to support and maintain the block in stable. An action force, which can be produced when fuel is burn and exploded in the combustion chamber, pushes the wheel to rotate continuously for output efficient kinetic force for utilization.

Abstract: The invention relates to a rotary piston machine. A housing defines a prismatic chamber the cross section of which forms an oval of odd order, which is alternatingly composed of circular arcs having a first relatively small radius of curvature and circular arcs having a second, relatively large radius of curvature, which arcs change into each other continuously and differentiably. Corresponding first and second cylindrical inner wall sections are formed. A rotary piston is guided in the chamber, the cross section of the rotary piston forming an oval the order of which is one less than the order of the chamber. Opposite cylindrical nappe sections are formed at the rotary piston, of which, in each position, a respective one is rotatable in a cylindrical inner wall section of equal radius of curvature and the respective other one engages an opposite inner wall section. The rotary piston, in each position, subdivides the chamber into two working chambers.

Abstract: An internal combustion rotary engine generating continuous torque throughout an entire combustion cycle by an inverse displacement of a moving chamber and stationary convex surface is described. A rotary engine having one or more of asymmetric chambers, asymmetric crank shaft placement, and a mechanical crank arm of varying length is disclosed. An engine having greater horsepower output per unit of engine displacement than traditional piston or rotary engines is described.

Abstract: The Quasiturbine (Qurbine in short) described in patent U.S. Pat. No. 6,164,263 uses a rotor arrangement peripherally supported by four rolling carriages, the carriages taking the pivoting blade pressure-load, of the blades forming the rotor, and transferring the load to the opposite contoured housing wall. For the same, similar or other applications, the present invention discloses a central, annular, rotor support for the rotor geometry defined by the pivoting blades and associated wheel-bearings, while still maintaining the important center-free engine characteristic. The pressure-load on each pivoting blade is taken either by its own set of wheel-bearings rolling on annular tracks attached to the central area of lateral side covers forming part of the casing, or is cancelled out in symmetrically pressurized fluid energy converter mode through the central holding action of annular power sleeves.

Abstract: A rotary engine utilizing an expansion chamber and crescent piston to capture the energy of expanding combustion gases throughout substantially all of each revolution of the piston. The rotary engine uses a crescent piston, the movement of which is guided by the combined action of a hub having a saddle supporting the piston and a can track. The invention burns fuel in a separate combustion chamber charged from a coaxially mounted compressor and controlled by a pass gate sentry valve. The rotary engine of the invention is cooled by an internal coolant injection system. The coolant solution may contain an alkaline reagent to react with and neutralize acidic components of the combustion gases which would otherwise remain in the exhaust and contribute to air pollution. The rotary engine of the present invention is adaptable to compression ignition fuels and spark ignition fuels. The invention may be constructed of conventional metallic materials as well as composites and ceramics.

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: A DPF apparatus includes: a container; an exhaust inlet pipe; a diesel particulate filter; a pair of perforated plugs; a pair of partition plates; and a diffusion chamber. The exhaust inlet pipe is inserted into the container and having openings formed in a pipe wall thereof. The diesel particulate filter is disposed inside the container. The perforated plugs are separately disposed inside an end portion of the exhaust inlet pipe. The partition plates have one or more openings and disposed on the pipe wall of the exhaust inlet pipe. The diffusion chamber is defined by an inner wall face of the container, the perforated plugs, the partition plates, and the pipe wall of the exhaust inlet pipe.

Abstract: An engine at least has a slide block allocated around or at a lateral side of a round gas wheel. The central portion of the gas wheel is fixedly mounted on a main axle; the gas wheel outputs kinetic force during rotating, and is provided peripherally with equidistantly arranged inverted triangular pistons; the inner side of the slide block has correspondingly an intake chamber and a combustion chamber opposite to pistons on the gas wheel to form quasi cylinders. The slide block has on its outer surface an arciform slide way forming an inclined angle &thgr; with the contrary direction of rotation of the gas wheel and being supported by pulleys provided on a supporting rack; a spring and a screw are provided at the opening end of the inclined angle &thgr; for adjusting the basic micro pressure between the slide block and the gas wheel to prevent the slide block from sliding off along the normal rotating direction.

Abstract: A rotary engine utilizes an expansion chamber and an oscillating rotary piston to capture the energy of expanding combustion gases through out substantially all of each revolution of the piston. The movement of the oscillating rotary piston is guided by the combined action of a hub having a saddle supporting the rotary piston and a cam track. The invention bums fuel in a separate combustion chamber charged from a coaxially mounted compressor and controlled by a pass gate sentry valve. The rotary engine of the invention is cooled by an internal coolant injection system. The injection fluid coolant solution may contain a alkaline reagent to react with and neutralize acidic components of the combustion gases which would otherwise remain in the exhaust and contribute to air pollution. The rotary engine of the present invention is adaptable to compression ignition fuels and spark ignition fuels. The invention may be constructed of conventional metallic materials as well as composites and ceramics.

Abstract: The invention relates to a 4-phase rotary piston combustion engine. The embodiment of the engine consists of the engine body (1) where the main cylinder (2) is located; the piston (4) which revolves in the main cylinder and a cylindrical piston body is a fixed shaft (5). Thus the shaft functions as the driving shaft of the engine. The engine is operated by two valves (6, 9) which either open or close the space existing between the main cylinder surface and the piston body. The rotation of the piston is achieved when the gas mixture compressed into explosion volume is closed in between both the valves (6, 9) in such a way that also the piston stays between the valves. When the piston moves towards the valves in front (9) it pushes the combustion gas from the front side of the piston to its back side through a groove (13) located in the surface of the main cylinder. When the combustion gas has moved to the back side of the piston, the explosion takes place and the valve in front of the piston opens.

Abstract: The present invention provides an internal combustion engine and a method of manufacturing the internal combustion engine. The internal combustion engine comprises a housing, a first rotor, first and second impellers and a compression cam. In a preferred embodiment, the housing has a first inner surface defining a first cavity therein, the first rotor is journalled for rotation within the first cavity and is situated to define compression and exhaust cavities on opposing sides therein, first and second impellers located in, and slidable with respect to, first and second opposing radial apertures in the first rotor, and the compression cam is fixedly coupled to the housing. The compression cam has a working surface portion that corresponds to a profile of the inner surface to force the first and second impellers to contact the inner surface and a dead surface portion that departs from the profile to allow the first and second impellers to withdraw from the inner surface.

Abstract: The present invention pertains to rotary internal combustion engines and essentially relates to an engine including a body that comprises an inner cylindrical cavity as well as side covers. The cavity comprises a rotor-piston which is concentrically mounted therein, which comprises side surfaces, radial protrusions and radial recesses on its peripheral surface, and which forms together with the body a plurality of segmented cavities. The side surfaces of the rotor-piston abut tightly with the side covers, while the radial protrusions at the peripheral surface of the rotor-piston abut tightly with the inner cylindrical surface of the body cavity. The combustion chamber is located beyond the limits of the inner cylindrical cavity and communicates with the latter through inlet and outlet channels provided with controlled slide valves.

Abstract: A wobble plate engine (20) includes a wobble plate assembly (26) having a wobble plate (58) that rolls against truncated cone portions (42) of a housing (22) and has an inner extremity (60) rotatably supported by an axially inclined annular bearing (49, 49′) on a spherical member (46) of the wobble plate assembly so as to rotate a shaft (24) during the wobbling motion. One embodiment of the wobble engine (20) includes an oil lubrication system (114) and another embodiment includes antifriction roller bearings (220) that support the wobble plate (58) on the spherical member (46), antifriction roller bearings (224) that rotatively support the shaft (24) on the housing (22′) and seals (226) that rotatively seal between the shaft (24) and the housing (22′).

Abstract: The disclosed Bolonkin rotary engine has high energy efficiency and can be used as an internal combustion engine, a compressor, a pump, or as a motor working on compressed gas or liquid. Bolonkin rotary engine comprises a housing, a rotor mounted in the housing, separating valves controlling flow of a working fluid within displacement volume of the engine, means for working fluid circulation, and means for coordinating passage of rotor blades through the separating valves. The preferred embodiment of the invention is realized as a rotary internal combustion engine having rotatable glass-shape separating valves, expansion and compression sections, and a bypass channel. Alternative preferred embodiments of Bolonkin rotary engine differ in a type of separating valve use, which can be one of the following: rotatable disc valve, reciprocating slide-slot valve, reciprocating slide valve, and a swaying-lever valve.

Abstract: A rotary machine, usable as an engine or as a pump, has a toroidal cylinder (25) which is swept by continuously rotating disc-like piston (34). The cylinder has a double disc valve arrangement (42, 44) at one point, so that it can be divided into a compression side and an expansion side. However the piston has to pass the position of the valve during each revolution, and the valve opens briefly to allow this to happen. The compressed gas is forced into a storage chamber (62) outside the cylinder, and a valve (64) which is operated independently of the double disc valve arrangement (42, 44) is used to determine how much gas is admitted to the combustion chamber (25c), and when it is admitted.