Abstract: The present invention relates to a vane rotary compressor wherein the volume of a compression room is reduced and a fluid is compressed when a rotor rotates. According to one embodiment of the present invention, the present invention provides the vane rotary compressor for maximizing the rotational moment of a vane by extending a weight part at a front end part of the curved blade type vane so as to remove the hitting noise due to the delay of the rotational operation of the vane when the rotor is rotated, and increasing the performance by reducing the internal leak.

Abstract: An oil pump includes a rotor, an outer peripheral member accommodating the rotor, a first plate, and a second plate. A discharge passage through which hydraulic fluid is discharged is connected to a discharge port of the first plate. A first pressure gradually-changing groove and a second pressure gradually-changing groove are formed such that a second flow passage area is larger than a first flow passage area, the first flow passage area being a flow passage area of the first pressure gradually-changing groove of the first plate, at a position at which the first pressure gradually-changing groove communicates with a transfer chamber passing through a sealed region, and the second flow passage area being a flow passage area of the second pressure gradually-changing groove of the second plate, at a position at which the second pressure gradually-changing groove communicates with the transfer chamber passing through the sealed region.

Abstract: A blade-type fluid transmission device includes a rotor eccentrically located in the room of a stator and the outer periphery of the rotor is tangent to the inner periphery of the room. At least one blade is pivotably connected to stator and movably inserted in at least one slot of the rotor. The distal end of the at least one blade is in contact with the inner periphery of the room so as to form a space for receiving fluid between the outer periphery of the rotor and the inner periphery of the room. The contact between the at least one blade and the inner periphery of the room increases the efficiency for transmitting fluid which enters into the stator from an inlet and leaves from the stator from an outlet.

Abstract: A vane pump includes a rotor, slits which are radially formed in the rotor, vanes which slidably project from the slits, vane back pressure chambers which are defined between the base end parts of the vanes and the slits, a cam ring with which the tip parts of the vanes slide in contact, a pump chamber which is defined among the cam ring, the rotor and adjacent vanes, a vane ring which faces the base end parts of the vanes, a vane ring housing chamber on which one end of each slit is open and in which the vane ring is housed, and vane ring opposite pressure chambers on which the other ends of the slits are open and which cause a fluid pressure to act in a direction to push the rotor toward the vane ring.

Abstract: The present invention relates to a vane rotary compressor in which, while a rotor is rotating, the volume of a compressing chamber is reduced and a fluid such as a refrigerant is compressed. The vane rotary compressor according to one embodiment of the present invention is provided with the compressing chamber, the inner circumferential surface of which is formed in the shape of an involute curve, wherein the rotor is hinge-coupled with a plurality of cantilever vanes such that compression efficiency is high and noise is prevented from occurring during the operation of the compressor.

Abstract: A method for adjusting the compression in the vane cell chambers in the compression region of a vane cell pump for conveying pasty substance, in particular sausage meat, and a corresponding vane cell pump, wherein the compression is adjusted by changing the guide of the vane.

Abstract: A blade-type fluid transmission device includes a rotor eccentrically located in the room of a stator and the outer periphery of the rotor is tangent to the inner periphery of the room. At least one blade is pivotably connected to stator and movably inserted in at least one slot of the rotor. The distal end of the at least one blade is in contact with the inner periphery of the room so as to form a space for receiving fluid between the outer periphery of the rotor and the inner periphery of the room. The contact between the at least one blade and the inner periphery of the room increases the efficiency for transmitting fluid which enters into the stator from an inlet and leaves from the stator from an outlet.

Abstract: A vane pump includes a rotor including a first annular groove and a second annular groove. The rotor further includes a cylindrical portion projecting axially from a radial inner side of the first annular groove and fitting over a drive shaft, and a slide contact portion formed on a radial inner side of the second annular groove. The cylindrical portion is slidably received in a bearing hole formed in a first side wall of a housing, whereas the slide contact portion abuts slidably on an inside wall surface of a second side wall of the housing. There is further formed, in the first annular groove, a recessed portion making a pressure receiving area of one of the first and second annular grooves greater than a pressure receiving area of the other of the first and second annular grooves.

Abstract: A blade-type fluid transmission device includes a rotor eccentrically located in the room of a stator and the outer periphery of the rotor is tangent to the inner periphery of the room. At least one blade is pivotably connected to stator and movably inserted in at least one slot of the rotor. The distal end of the at least one blade is in contact with the inner periphery of the room so as to form a space for receiving fluid between the outer periphery of the rotor and the inner periphery of the room. The contact between the at least one blade and the inner periphery of the room increases the efficiency for transmitting fluid which enters into the stator from an inlet and leaves from the stator from an outlet.

Abstract: A rotary machine, for directing a quantity of fluid from an inlet to an outlet, comprises one or more elliptical or near-elliptical rotors having planetary rotation within a housing. The interior cavity of the housing comprises an inverse apex region that is in contact with the rotor during its rotation. In various embodiments the rotor and housing can be symmetric or asymmetric in cross-section. Features are described that can improve the operation of the machine for various end-use applications. Such features include cut-outs that are fluidly connected to the inlet or outlet ports of the machine, mechanisms for reducing variation in output flow rate from the rotary machine, linings for the interior cavity of the housing, pressure relief mechanisms, dynamic apex seals and other sealing mechanisms.

Abstract: A rotary compressor having a housing and a rotor positioned within an internal cavity of the housing. The rotor being configured to rotate about a rotor axis of rotation eccentric to a housing longitudinal axis. A gate is also provided that is slidably mounted therewith the rotor and movable axially about and between a first position, in which a distal end of the gate is positioned at a first distance from the peripheral surface of the rotor, and a second position, in which the distal end of the gate is positioned at a second distance from the peripheral surface of the rotor. The distal end of the gate being constrained to be spaced proximate from the inner wall surface of the housing as the rotor rotates about the rotor axis of rotation.

Abstract: The present invention relates to a rotary motor, comprising a plurality of vanes, wherein each of the vanes is split into two subvanes, one or more elastic members, wherein the elastic member is configured to push each of the subvanes foil ling a vane toward an end plate to form a seal between the subvane and the end plate; an inner rotary member housing the plurality of vanes projecting from a central rotation axis of the inner rotor; a lobe member encompassing the inner rotary member and the plurality of vanes; a plurality of chambers wherein each of the chambers is encompassed by an inner surface of the lobe member and an outer surface of the inner rotary member; and one or more end plates to enclose the plurality of vanes, the inner rotary member, the lobe member and the plurality of chambers.

Abstract: A sealing assembly for use in a rotary compressor having a housing and a rotor. The sealing assembly includes a sealing element and a spring positioned circumferentially around the sealing element. The sealing assembly is positioned in a slot formed in the housing, with at least one surface of the sealing element being beveled, and a cooperating mating surface of the slot being beveled. The force of the spring against the sealing element causes the sealing element to be forced into contact with at least one surface of the rotor (such as an inner surface of a rotor end plate). Alternatively, a sealing element can be provided that has elastic properties, the forces of which cause the sealing element to be forced into contact with the rotor.

Abstract: A vane pump in which oil is drawn from at least one side, in an axial direction, of a cam ring and is discharged from at least the one side, in the axial direction, of the cam ring, the vane pump including: a portion defined by a groove formed on an inner circumference surface of the cam ring, the groove extending along a circumferential direction of the inner circumference surface and arranged in a position including a middle of an axial direction width on the inner circumference surface in an oil suction section or an oil discharge section of the cam ring, the groove being formed so that a depth of the groove is constantly shallower from a mid-point, in the circumferential direction, of the groove to both ends of the groove.

Abstract: A bladed expander for recovery of thermal energy from a working fluid, comprising, a stator provided with an inlet port and an outlet port for the working, fluid, a rotor housed within the stator, and a plurality of blades set between the rotor and the stator so as to delimit between them a plurality of compartments with variable volume that increases between the inlet port and the outlet port. The stator and the rotor are subjected to a heat exchange with a hot fluid so as to carry out a transformation of expansion during which the working fluid receives thermal energy from outside.

Abstract: A revolving vane compressor comprising: a cylinder having a cylinder longitudinal axis of rotation, a rotor mounted within the cylinder and having a rotor longitudinal axis of rotation, the rotor longitudinal axis and the cylinder longitudinal axis being spaced from each other for relative movement between the rotor and the cylinder; a vane operatively engaged in a slot for causing the cylinder and the rotor to rotate together, the vane being mounted in the slot with a two degree-of-freedom motion relative to the slot for enabling the rotor and the cylinder to rotate with each other.

Abstract: An apparatus (1) and a method of converting a portion of the specific energy of a fluid in gas phase into mechanical work are described, the apparatus (1) comprising: at least one housing (3, 3?) which is provided with at least one gas-supply portion (7, T) and at least one exhaust portion (9, 9?)/each of the at least one housing (3, 3?) comprising: a blade wheel (5) which is rotatably arranged in the housing (3, 3?) and which includes: a shaft (51) enclosed by a drum (53); at least two blades (55) which are movably arranged to the drum (53) so that a portion (57) of the blades (55) is arranged to be moved towards the internal casing surface (31) of the housing (3, 3?) in such a way that the drum (53), the internal casing surface (31) of the housing (3) and the blades (55) define chambers (59) arranged to contain gas, an effective area of a blade (55) which is immediately upstream of the exhaust portion (9, 9?) being larger than an effective area of a blade (55) which is immediately upstream of the gas-supply

Abstract: A vane pump includes a rotor, slits which are radially formed in the rotor, vanes which slidably project from the slits, vane back pressure chambers which are defined between the base end parts of the vanes and the slits, a cam ring with which the tip parts of the vanes slide in contact, a pump chamber which is defined among the cam ring, the rotor and adjacent vanes, a vane ring which faces the base end parts of the vanes, a vane ring housing chamber on which one end of each slit is open and in which the vane ring is housed, and vane ring opposite pressure chambers on which the other ends of the slits are open and which cause a fluid pressure to act in a direction to push the rotor toward the vane ring.

Abstract: A split discharge vane pump is disclosed having a pump body that includes an interior pumping chamber having a central axis and defining a continuous peripheral cam surface, the cam surface including four quadrantal cam segments, wherein diametrically opposed cam segments have identical cam profiles, and each cam segment defines an inlet arc, a discharge arc and two seal arcs. A rotor is mounted for axial rotation within the pumping chamber and a plurality of circumferentially spaced apart radially extending vanes are mounted for radial movement within the rotor, wherein the plurality of vanes define an equal number of circumferentially spaced apart buckets which extend between the rotor and the cam surface of the pumping chamber for carrying pressurized fluid.

Abstract: A vane pump includes a housing, a cam ring, a rotor, a plurality of vanes that forms a plurality of pump chambers, a side plate constituting a portion of an intake port, an intermediate plate axially adjacent to the housing and the side plate, and a cover member. A portion of a flow passage, through which a fluid flows, is constituted by a surface of the intermediate plate and at least one of the housing, the side plate, and the cover member, the surface of the intermediate plate being adjacent to the at least one of the housing, the side plate, and the cover member. A through-hole or a recessed portion is formed in the intermediate plate, and the through-hole or the recessed portion of the intermediate plate and the side plate constitute a portion of the intake port.

Abstract: The invention is an internal combustion engine converting the fuel/air mixture (17) to energy, comprising at least one engine having at least one engine cover (2), at least one external piston (5) having geared rotary ducts and providing the combustion and compression volumes inside said engine body (1), having fuel/air mixture (17) and exhaust gas (18) discharge openings (4.1), one internal piston (7) which rotates inside said internal piston space (6) and compresses the fuel/air mixture (17) sucked in through the suction opening (6.1) behind it and pumps this into the external piston inner space (4) and an external piston (5) rotating in the opposite direction.

Abstract: A fluid vane pump having a housing with a generally cylindrically walled control volume with an inlet and outlet. A rotor is provided having a rotatable axis within the cylindrical wall control volume. The rotor has a plurality of radially movable vanes operating with the cylindrical wall. A single vane ring is provided which operates with the rotor having an outer radial surface contacting the inner radial edges of the vanes.

Abstract: A vane liner for use in a vane pump has a vane liner body defining an inner bore for providing a cam surface in a vane pump. The cam surface has a suction opening formed through the body at one circumferential extent, and a discharge opening through the body at a distinct circumferential extent. A pre-pressurization opening extends through the body at a location upstream of an upstream end of the discharge opening, but spaced by at least 90 degrees from a downstream end of the suction opening. A vane pump incorporating the above-discussed liner is also claimed. Further, a vane pump is also disclosed and claimed having the spacing from the downstream end of the suction opening at least X degrees wherein X equals 360 divided by N, N being the number of vanes in the vane pump.

Abstract: A system for controlling angular position of stator blades including: a mechanism for calculating a set angular position of the blades according to one of speeds; and a module for correcting the set position including: a mechanism for determining the angular position of the blades; a mechanism for measuring fuel flow rate of the turbine engine; a memory unit in which consecutive angular positions of the blades are combined with the fuel flow rates of the turbine engine measured at the angular positions; and a mechanism for determining a correcting angle according to the difference between the fuel flow rates measured between two consecutive angular position of the blades. A method for optimizing the common angular position can utilize the system.

Abstract: A variable displacement pump includes a pump structural member configured to change volumes of a plurality of working chambers by rotation of a rotor, so as to introduce oil through an inlet port into the working chambers and to discharge the oil through a discharge port, and further configured to oscillate a cam ring by a discharge pressure introduced into a control oil chamber. A first coil spring is provided to force the cam ring in a direction for increasing of a rate of change of the working-chamber volume. A second coil spring is provided to force the cam ring in a direction for decreasing of the rate of change of the working-chamber volume. The first and second coil springs are laid out on both sides of an arm portion of the cam ring in a manner so as to be opposed to each other.

Abstract: A high capacity lightweight compact vane motor or pump system which utilizes vanes with extensions to improve efficiency of the system overall. The present invention generally includes a rotor housing, a rotor, a housing cover. The rotor housing will generally include a central opening in which the rotor is positioned. The rotor will generally include a plurality of radially spaced vane slots. A rotor vane will generally be positioned within each vane slot. Each rotor vane will generally include a first extension and a second extension, wherein the first extension extends into slidable engagement with a groove on the housing cover and the second extension extends into slidable engagement with a groove on the interior surface of the rotor housing. As the rotor is rotated within the housing, the vanes will slide into and out of the slots to create voids to hold oil to be expelled at the outlet.

Abstract: A vane compressor has a plurality of vanes that are radially translatable and have outer ends. The vanes create zones between each pair of adjacent vanes, each zone having a given area. The vane compressor also has an axis about which the vanes rotate and an outlet for expelling compressed fluid. A first zone immediately following a second zone, which is in register with the outlet, has the same area as the second zone.

Abstract: An engine having a rotor including at least one slot and at least one combustion chamber used to form a cavity is provided. The engine also includes at least one vane rollably disposed in the slot, and a block for receiving the rotor, and having a first quadrant including an inlet port, a second quadrant, a third quadrant, and a fourth quadrant having an outlet port. The vane moves through the first quadrant, drawing air into the block and the cavity. The vane then moves through the second quadrant, compressing the air. The vane then moves through the third quadrant, combusting the air, and forcing the rotor to rotate. The vane then moves through the fourth quadrant, forcing the air out of the outlet port.

Abstract: A variable capacity vane pump (100) has a pump housing (10) having a high-load bearing part (10a) on which a higher load is exerted than another part when the pump vane pump (100) operates. A control valve (21) for varying a capacity of the vane pump (100) is provided in a valve housing (28) which is formed integrally in the pump housing (10). By arranging the valve housing (28) on the same side of the pump housing (10) as the high-load bearing part (10a) with respect to the rotation axis of the vane pump (100), the high-load bearing part (10a) can be reinforced without increasing the size of the vane pump (100).

Abstract: A power steering oil pump may include a pump housing, a rotor that is equipped with a plurality of vanes and coupled to the pump housing to rotate therein, a cam ring inserted between the rotor and the pump housing to form a pumping space between the cam ring and the rotor, a rotor shaft that passes through the rotor and is fitted therein to transmit rotational force to the rotor, and a bush that has at least a first oil groove on an inner circumference thereof and supports the rotor shaft to a pump cover coupled to the pump housing while covering a portion of the rotor shaft which passes through the rotor, wherein at least a second oil groove is formed on an end portion of the vanes contacting with an inner circumference of the cam ring.

Abstract: A split discharge vane pump is disclosed having a pump body that includes an interior pumping chamber having a central axis and defining a continuous peripheral cam surface, the cam surface including four quadrantal cam segments, wherein diametrically opposed cam segments have identical cam profiles, and each cam segment defines an inlet arc, a discharge arc and two seal arcs. A rotor is mounted for axial rotation within the pumping chamber and a plurality of circumferentially spaced apart radially extending vanes are mounted for radial movement within the rotor, wherein the plurality of vanes define an equal number of circumferentially spaced apart buckets which extend between the rotor and the cam surface of the pumping chamber for carrying pressurized fluid.

Abstract: A pendulum-slide cell pump may include a rotationally mounted inner rotor connected via pendulum-slides with an outer rotor and wherein the outer rotor may be configured to transfer rotational movement of the outer rotor to the inner rotor via the pendulum-slides.

Abstract: An example vane pump comprises a shaft driving a rotor. The rotor has a plurality of vane grooves, with a vane received in each of the plurality of vane grooves, and an under vane chamber for communicating a pressurized fluid into the grooves to bias the vanes radially outwardly of the rotor. A cam ring is positioned radially outwardly of the rotor. The cam ring is free to rotate with the rotor through friction from the vanes as the rotor rotates. An inlet delivers a fluid to be pumped into an inlet chamber, and an outlet receives the fluid pumped by the vane pump. An outlet for the fluid biasing the vanes communicates to a main outlet through a passage including a valve to increase the pressure of the fluid in the grooves.

Abstract: The split-chamber rotary engine includes a rotary power module having a case with a circular rotor installed therein. At least one, and preferably two or more combustion chambers are formed peripherally in the rotor. The generally circular rotor cavity of the case includes at least one, and preferably two or more, peripheral expansion chambers. A corresponding number of reciprocating compressor modules are installed upon the case, with the compressor module axis being aligned generally tangentially to the rotor periphery. The compressor module includes concentric reciprocating pistons and valves that compress the air charge and transfer the compressed charge to the rotary power module for power production. The compressor module is driven purely by combustion gas pressure acting upon its inboard piston. No mechanical linkage exists from power module to compressor module. The engine may include multiple rotor and case rows, as desired.

Abstract: There is provided a slide part used in an environment where there is a lubricant containing a molybdenum compound including a hard protective layer formed on an outermost surface of a substrate of the slide part; in which: the hard protective layer includes mainly carbon, nitrogen, and a metal element; the hard protective layer is composed of a complex of an amorphous carbon body containing nitrogen and a compound crystal of the metal element; the compound crystal is composed of at least one of a metal carbide, a metal nitride, and a metal carbonitride; and a surface hardness of the hard protective layer is 1800 or larger in Vickers hardness.

Abstract: A rotary, positive displacement pump for fluids, having a pair of diametrically opposed vanes secured to a rotor in equally spaced, similarly contoured pockets, for movement between an extended position with a portion of the vane extending outwardly beyond the cylindrical surface of the rotor and a retracted position wherein the vane is seated entirely within its corresponding pocket. Each vane is formed of a top curved portion and a bottom curved portion, these portions meeting along a longitudinally extending line. The top portion extends from a pivot to the line and is curved so that when the vane is in retracted position it sits in a peripheral depression extending longitudinally along the rotor surface, the outer surface of this top portion of the vane conforming to the cylindrical surface of the rotor. The bottom portion is curved along a radius from that pivot, so that this lower portion is seated in and fills its corresponding pocket when the vane is in retracted position.

Abstract: The disclosure relates to a vane cell pump having an inner rotor (12) and a plurality of vanes (18) which are secured in a pivotable manner to the external rotor (28) and which are displacably mounted in a radial manner in the inner rotor, essentially in radial slots (16). The external rotor is formed on guide blocks (22). Said guide blocks are guided, with the axial front sides thereof, on the guiding path and are guided along the internal circumferential surface of a stator (26). The guiding path is arranged in a guide ring (36).

Abstract: A variable displacement pump including a rotor, a plurality of vanes, a swingable cam ring, a suction port and a discharge port, wherein a dynamic radius of the vane which extends from a center of the rotor to a leading edge of the vane is gradually decreased in a closed section that is defined between a terminal end of the suction port and an initial end of the discharge port, along with rotation of the rotor, and a port timing defined as a position of the terminal end of the suction port or a position of the initial end of the discharge port with respect to a rotational position of the vane varies along with a swing motion of the cam ring.

Abstract: A vane pump that is provided with, inside a case, a cam ring, a rotor that is disposed inside this cam ring so as to be freely rotatable, a plurality of vanes that is accommodated in each of a plurality of vane grooves that is radially formed in this rotor and slides along the cam surface of the cam ring accompanying the rotation of the rotor, and a front combination side plate and a rear combination side plate that are disposed on opposite sides of the rotor and the vanes. In the vane pump, the front combination side plate is a combination side plate formed by a first front plate and a second front plate, the rear combination side plate is a combination side plate formed by a first rear plate and a second rear plate, and the front combination side plate and the rear combination side plate have an identical rigidity and are symmetrically disposed with respect to the rotor.

Abstract: An internal combustion device, rotor self cooled, concentric and symmetric shape, dynamically variable compression ratio; capable of developing multiple Otto cycles per rotation, using modules, each made, mainly of a solenoid gate valve and three chambers operating at the rotor periphery. High power/weight ratio, that improves substantially, by increasing quantity of working modules, and without any drive shaft lengthening. With volumetric asymmetry ratio between chambers, combustion gasses quick exhaust and fast rise of air/fuel mix pressure peak. Proper for many types of combustion and class of fuels, including hydrogen, and efficient use of compressed air as external energy supply. Excels in aircraft use.

Abstract: A rotary pump for fluids comprising a shaft to rotate about a longitudinal axis and a cylindrical rotor centrally secured to that shaft. A housing encasing the shaft and rotor includes, interior end walls adjacent to the rotor disks and an interior side wall. Fluid inlet and outlet ports are provided at spaced locations in the housing side wall. Paddles are pivotably secured to the rotor in pockets in the rotor, to pivot about points at rearward sides of the paddles, for movement between extended positions with the paddles extending outwardly beyond the cylindrical surface of the rotor and retracted positions where the paddles are seated entirely within their corresponding pockets. A means is provided to bias each paddle towards the extended position, but to allow the paddle to move towards that extended position, but to allow the paddle to move towards the retracted position.

Abstract: A vane-type hydraulic motor includes a rotor (30) having a main shaft (70) and a plurality of vanes (35), a cam casing (10) having a chamber (11) for rotatably housing the rotor (30), a first port (13) and a second port (15) for supplying a working fluid into the chamber (11) and discharging the working fluid from the chamber (11). A bypass path (80) is provided for allowing the working fluid to flow from bearing portions (51, 61) supporting the main shaft (70). A drain port (17) is provided for discharging the working fluid to the exterior.

Abstract: A rotary piston for use in pumps or motors, the piston having a radially movable vanes seated within the pumps rotor. The vanes are biased outwardly and forced inwardly by a cam action of the interior wall of the housing of the piston. Operation of the piston may be facilitated by the use of peripherally mounted drive gears. The rotary piston according to the present invention is particularly useful in pumping fluids and provides a system that can operate at both high and low speeds for a wide range of liquid viscosities.

Abstract: The present invention relates to a vane-type rotary machine suitable for use in applications where a low-viscosity fluid such as water is used as a working fluid. According to the present invention, a vane-type rotary machine having a rotor (11) mounted with vanes and rotatably housed in a cam casing (10) includes a motor supply opening (or pump discharge opening) (30) for a working fluid, a motor return opening (or pump suction opening) (20) formed in the cam casing for a working fluid, and branch flow passages (23, 25, 33 and 35) branched from the motor supply opening (or pump discharge opening) and the motor return opening (or the pump suction opening) and communicating with vane chambers (22, 24, 32 and 34). The distances of the branch flow passages are identical to each other.

Abstract: A rotary piston for use in pumps or motors, the piston having a cylindrical rotor with radially movable vanes rotating within a housing, the movement of the vanes controlled by pins of the vanes travelling in races in the housing.

Abstract: A positive displacement pump comprising a casing having an interior chamber and an inlet and an outlet oppositely spaced within the chamber. A rotor with a cylindrical outer surface is secured in offset position within the chamber. An end disk is secured to each end of the rotor. Three planar vanes are provided, each having sides and inner and outer edges. The sides of the vanes are seated within the end disk slots. The outer edges of the vanes are in constant contact with the side wall of the chamber. The inner edges of the vanes are constantly movably seated in the rotor slots during operation of the pump. The slots in the rotor within which the vanes are seated are formed along a chord when the rotor is viewed in lateral cross section and are orientated so that their planes lie at 60° angles to the planes of adjacent slots.

Abstract: An internal combustion rotary engine which includes a housing encased rotor having: cam actuated inwardly and outwardly extending vanes, a combustion chamber communicating with a fluid inlet port to the vanes within the housing, and an exhaust chamber communicating with the fluid outlet port from the vanes of the housing, air and fuel injectors associated with the combustion chamber for delivery of an air and fuel mixture to the combustion chamber, and igniter means associated with the combustion chamber for igniting air and fuel mixture within that chamber. Controls are provided to properly control the sequence of air and fuel injection, fuel ignition and exhaust valve opening and closing during operation of the engine to provide simpler and more economical rotary engine.

Abstract: An improved rotary engine that harmoniously produces multiple, sequential cycles. A main housing is comprised of a concentric stator sandwiched between a front and an aft wall enclosing a cylindrical inner space. A network of combustors are stationed about the stator periphery. Mounted on a central axis within the inner space is a concentrically revolving rotor body. The combustors sequentially introduce a working fluid into a plurality of expansion chambers symmetrically stationed within the rotor body. As the rotor is propelled by the working fluid, a variable vane transversely mounted within each expansion chamber simultaneously performs work on a fluid in a compression region. The compressed fluid of each cycle is discharged and diverted to compliment the combustor of a sequential cycle. A high degree of power and efficiency is achieved using simple mechanics to produce multiple cycles during each revolution.

Abstract: A rotary engine including a cylinder shaped housing, a rotation body rotating in the housing, an oval guide part located at the center of the rotation body being prominently formed from the cylinder shaped housing. A axis of rotation being formed in monolithic structure with the rotation body penetrated through the cylinder shaped housing and the oval guide part, an induction hole, an exhaust hole, and an ignition plug or a fuel supply device in selection up to the engines. At least one of operation rooms being furnished with air hole and located in the rotation body, and each of pistons being at one side of the operation rooms to be rotated, wherein a tail and a front of said pistons circumscribe with the oval guide part and a guide bar inscribing with a guide surface of the cylinder shaped housing through a guide roller at a shaft stick connecting said pistons.

Abstract: A family of sliding vane rotary power devices provides an internal combustion engine, a pump, a compressor, a fluid-driven motor, an expander device, a fluid-driven pump, and a compressor or a throttling device. All of these devices have an improved method of vane actuation comprising a freely sliding element partially enclosed by a medially extended outer vane portion and partly enclosed at its ends by a mirror-image encircling cam groove formed in a circumferentially-split external housing. As the rotor turns, the sliding elements engage the encircling extended vane portion and the mirror-image cam grooves cause the vanes to reciprocate radially in respective rotor slots while the outer vane tips follow the wall contour of the rotor with a minimal clearance so that the cavities rotate with the rotor and expand and contract as the rotor turns.