Abstract: A variable volume chamber device is disclosed. The chambers may be defined by the space between four pivotally connected vanes contained within a housing. The vanes may be connected so as to create a sealed interior chamber that may be used as a combustion chamber in an internal combustion engine, or as a pumping chamber in a pump or compressor. The four-vane assembly may also form additional variable volume chambers between the vanes and a surrounding structure. The plurality of variable volume chambers may be interconnected to progressively act on a working fluid.

Abstract: A compressor pump structure comprises a rotating shaft, a piston, a cylinder, a cylinder sleeve, a lower flange and an upper flange, the central axis of the rotating shaft being arranged eccentrically with respect to the central axis of the cylinder, the rotating shaft being slidably arranged in the piston, the piston being movably arranged in the cylinder and forming two volume-variable chambers with the cylinder, the piston comprising two first sliding planes arranged opposite one another and two first contacting planes arranged opposite one another, the first contacting plane on the upper side being in sealing contact with the upper flange, and the first contacting plane on the lower side being in sealing contact with the lower flange. Also disclosed is a compressor with the compressor pump structure.

Abstract: A rotary engine includes a rotor coupled to a shaft, the rotor having a first side wall, a second opposing side wall, and a rim extending between the first side wall and the second side wall. A piston extends from the rim of the rotor. A pressure chamber is defined by a face of the piston, the interior surface of a housing, and the rim of the rotor. An inlet directs fluid through the housing and into the pressure chamber. A backpressure flap is pivotably attached to the interior surface of the housing. An outlet directs fluid from the pressure chamber to the exterior of the housing. An effluent flap is pivotably attached to the interior surface of the housing. The inlet and outlets are closed when their respective flaps sealingly engage an interior surface of the housing.

Abstract: Variable counterweight apparatuses, systems and methods. The variable counterweight system includes at least one rotatable actuator, a first variable counterweight assembly, and a second variable counterweight assembly. The first variable counterweight assembly is rotatably coupled to the rotatable actuator to rotate about a first axis. The first variable counterweight assembly is configured to geometrically reconfigure so as to change a first variable counterweight assembly center of gravity position with respect to the first variable counterweight assembly. The second variable counterweight assembly is rotatably coupled to the rotatable actuator to rotate about a second axis. The second variable counterweight assembly is configured to geometrically reconfigure so as to change a second variable counterweight assembly center of gravity position with respect to the second variable counterweight assembly.

Abstract: A variable volume chamber device is disclosed. The chambers may be defined by the space between four pivotally connected vanes contained within two side plates. The vanes may be connected so as to create a sealed interior chamber that may be used as a combustion chamber in an internal combustion engine, or as a pumping chamber in a pump or compressor. The four vane assembly may also form additional variable volume chambers between the vanes and a surrounding structure. The plurality of variable volume chambers may be interconnected to progressively act on a working fluid.

Abstract: The present disclosure relates to a rotary engine which includes a cylinder having a gas inlet and a gas outlet, two rotors which are mounted inside the cylinder and can rotate freely, pistons fixed on the rotors, an ignition device provided on an inner wall of the cylinder and a planetary conical gear differential located outside the cylinder. The planetary conical gear differential includes a first sun gear and a second sun gear. The first rotor and the second rotor are superposed concentrically, the first rotor is connected to the first sun gear through a spindle, and the first rotor and the second rotor are connected to the planetary conical gear differential on a same side of the planetary conical gear differential. The cylinder is a circular ring body. The pistons are in circular motion along with the rotors. A differential rotary engine capable of rotating normally is provided.

Abstract: A rotary engine including a housing and housing head enclosing a combustion chamber, a piston including an output shaft and a piston disk within the housing and rotatable on a piston rotation axis, a quadrant within the housing and around the piston and rotatable on a quadrant rotation axis, wherein the quadrant rotation axis is acutely angled to the piston rotation axis, and a post surrounding a segment of the piston disk. The post pivots relative to the piston about a post-piston rotation axis that is normal to the face of the piston disk. The post pivots relative to the quadrant about a post-quadrant pivot axis that is perpendicular to the quadrant rotation axis. The post rotates about the quadrant rotation axis relative to the housing. Combusting fuel injected into the combustion chamber expands and pushes on the piston disk to rotate the output shaft about the piston rotation axis.

Abstract: The present invention refers to a spark ignition engine of the rotary type with a double rotation center, comprising a stator (A) with a stator central body (A1) having a compartment (1, 2), a first side cover (A2) and a second side cover (A3), wherein the compartment includes an expansion compartment (1) and a compression compartment (2) and a combustion chamber at an upper portion of the compartment (1, 2), a rotor (B) with an expansion rotating element (B1), a compressing rotating element (B2) and a hinging linear element (B3) interposed between said expansion rotating element (B1) and the compression rotating element (B2), the rotor is arranged in the compartment (1, 2) of the stator central body, wherein the expansion compartment (1) comprises a concave inner surface (1a) and the compression compartment (2) comprises a convex inner surface (2a).

Abstract: A rotary machine with a deformable rhomb, includes a housing defining a stator for receiving a rotor which is a deformable rhomb in contact, with or without clearance, with the internal surface of the housing, the deformable rhomb including several pistons connected one after the other by a pivotal hinge having an axis parallel to the longitudinal axis of the housing and thus defining a closed chain; the internal surface of the housing of the machine defining an external cavity, with the exterior of the deformable rhomb, and with the lateral closure flanges of the housing, and an inner cavity being formed in the interior of the rotor with the lateral closure flanges of the housing; at least one of the external cavities and/or at least one of the inner cavities being connected, directly or indirectly, to the inlet of a fluid circuit external to the machine.

Abstract: The disclosure provides rotary machines that include, in one embodiment, 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 disclosure further provides embodiments having stationary islands and casings that rotate about the island.

Abstract: A rotary engine having a main block with a cylindrical cavity, a rotor having at least one divisor having at least one ring for rotably engaging a main axis. The divisors having an edge slidably abutting the internal surface of the cylindrical cavity. The rotor having at least one bearing for engaging the cams of the main axis. The rotor having at least one transversal fissure having a trapezoidal profile and a transversal cylindrical opening. The transversal cylindrical opening having at least one pivoted sliding guide for movably holding the divisors at an angle of 90 degrees between the edge the divisors relative to the internal surface of the cylindrical cavity during a complete 360-degree turn of the rotor. The rotor having a planetary gear interfering with a stationary satellite gear of the main axis and having a diameter wider than diameter of the stationary satellite gear.

Abstract: In a “cat and mouse” rotary engine two rotor-pistons are connected by concentric crosses to two inclined power shafts, improving the balance of the engine, ridding the bearings of the rotor-pistons from heavy idle loads, allowing lighter and more robust structure and making the arrangement proper for divided load applications like portable flyers, REM etc.

Abstract: Some embodiments provide a non-piston rotary engine that utilizes flywheel motion to generate power. In some embodiments, the non-piston rotary engine comprises a pair of flywheels and a plurality of rotor assemblies for generating mechanical energy. In some embodiments, each rotor assembly comprises a multi-vane compressor that rotates within a vane compressor housing. In some embodiments, each rotor assembly comprises a rotating combustion disk in a combustion housing. In some embodiments, the combustion housing comprises a plurality of combustion disk chambers for igniting the combustible gas and expelling exhaust fumes created after combustion, wherein combustible gas forced into each combustion disk chamber is combusted, causing the rotor to move in a direction to release exhaust from the combustion.

Abstract: The present invention relates to a heat engine having a housing. A generally triangular shaped rotor can drive an offset crank as it eccentrically rotates within the housing. Two inlets with valves and two exhausts are provided. The volume between each face of the rotor and the housing defines three expansion chambers. Six power cycles are provided (one by each expansion chamber times two inlets) per revolution of the rotor. Each valve controls the length of time that high pressure gas is allowed to enter each expansion chamber. The valves are controlled by a processor and close when enough pressure is supplied so that the pressures inside and outside the expansion chamber are equal when the chamber is fully expanded just prior to exhaust. Gates can provide a mechanical advantage to the rotor by reducing the amount of pressure applied to the back side of the fulcrum.

Abstract: A stator for a rotary internal combustion engine, with a body having an internal cavity. Each end wall has a scavenging cavity defined therein in fluid communication with the internal cavity through a respective scavenging opening extending through the inner surface thereof, and at least one annular oil seal groove defined in the inner surface thereof concentric with the central bore and located radially outwardly of the scavenging opening. At least one annular oil seal is received in each groove and protrudes from the end wall into the internal cavity for sealing engagement with a surface of a rotor of the engine, each seal being biased axially away from the end wall. A rotary internal combustion engine and a method of limiting radially outwardly directed oil leaks in a rotary engine are also disclosed.

Abstract: A hybrid internal combustion engine (variants thereof) comprises a casing having an annular working chamber with intake, exhaust ports, and overflow channels; and two drive shafts coaxial with the working chamber; a stationary central gear wheel; an output shaft having an offset portion fixedly carrying a carrier and a planetary gear; connecting rods pivotally connecting the carrier and the arms of both drive shafts, wherein the overflow channels are adjacent to the working chamber and connect the compression and expansion sections thereof.

Abstract: A rotary machine with a deformable rhomb includes a rotor formed by a deformable rhomb in contact, with or without clearance, with an internal surface of a housing forming a stator and/or with an external surface of a central crown, the deformable rhomb including four pistons connected one following the other by a pivotal hinge with an axis parallel to a longitudinal axis of the housing and thus forming a closed chain; a transmission mechanism to transmit movement between the pistons and a rotation shaft coaxial to a central axis of the machine, the transmission mechanism including a first rolling body mounted fixedly on at least one piston, an axis of the first rolling body passing in the center of the piston and connected to a second rolling body, a center of which passing through the central axis of the machine and being integral with the rotation shaft, the first rolling body being connected to the second rolling body directly or by an intermediate transmission member, wherein a demultiplication ratio bet

Abstract: An internal combustion engine, and more particularly a rotary internal combustion engine, is provided with said engine having multiple combustion chambers delimited by piston heads and an engine housing wall that defines at least a section of a torus. Additionally, a method for operating the internal combustion engine is described.

Abstract: The present invention relates to an improved rotary engine having one positive motion stroke, the rotary engine comprising at least one of a piston having at least one piston vane. At least one of a unidirectional bearing is operationally coupled to the piston, wherein the piston is configured to allow the piston vane to rotate and the unidirectional bearing prevents the piston vane from rotating during a combustive force or a thrust force injection. A peddle block is positioned in the pathway of the piston vane, wherein as the piston vane approaches the peddle block a secondary exhaust pressure increases against the piston vane surface, the secondary exhaust pressure, in part, causes the piston vane to rotate and self-align for a subsequent cycle. Other exemplary embodiments allow for a secondary exhaust pressure to rotate a piston vane causing the piston vane to self-aligning for the next cycle.

Abstract: According to the invention, a rotary engine is disclosed. The rotary engine may include a body, a rotor, and an ignition element. The body may define a rotor cavity, an intake channel, and a first exhaust channel. The rotor may be disposed within the rotor cavity and may define at least one chamber. Each chamber may receive a fuel from the intake channel when the rotor is in a first position. Each chamber may also at least partially contain combustion of the fuel when the rotor is in a second position. Each chamber may further output an exhaust to the first exhaust channel when the rotor is in a third position. The ignition element may be in communication with each chamber when each chamber is in the second position.

Abstract: The rotary mechanism with articulating rotor may be adapted as a pump or compressor when external power is applied to its shaft, as a motor when differential pressure is applied to its inlet and outlet ports, or as an internal combustion engine when provided with fuel, air, and ignition source. The mechanism includes an internal chamber having major and minor diameters. An articulating rotor having four linked segments rotates therein. The segments allow the rotor to articulate between square and rhomboid shapes as it rotates within the chamber, the rotor segments forming variable volume chamber portions as they rotate. The rotor segments are linked to the central shaft either by a transverse arm rotationally affixed to the central shaft and to diametrically opposed rotor segments, or by telescoping rods connecting the linked ends of the rotor segments to the central shaft.

Abstract: Engines and methods execute a high efficiency hybrid cycle, which is implemented in a volume within an engine. The cycle includes isochoric heat addition and over-expansion of the volume within the engine, wherein the volume is reduced in a compression portion of the cycle from a first quantity to a second quantity, the volume is held substantially constant at the second quantity during a heat addition portion of the cycle, and the volume is increased in an expansion portion of the cycle to a third quantity, the third quantity being larger than the first quantity.

Abstract: In an embodiment, a rotary vane-type geared internal combustion engine includes a stator, two coaxial rotors and a reducing gear. The stator has an internal cylindrical working area and intake and outlet openings. The two coaxial rotors with two vanes on each rotate to define four chambers separated by four vanes. The reducing gear has a main shaft, a shaft of an auxiliary device and two shafts of the two coaxial rotors positioned between the main shaft and the shaft of the auxiliary device. Each shaft of the reducing gear has a pair of two-tooth gears reciprocally positioned at a 90 degree angle.

Abstract: The invention comprises a rotary engine method and apparatus configured with a lip seal. A lip seal restricts fuel flow from a fuel compartment to a non-fuel compartment and/or fuel flow between fuel chambers, such as between a reference expansion chamber and any of an engine: rotor, vane, housing, and/or a leading or trailing expansion chamber. In separate states, high pressure and low pressure force sealing movement of the lip seal, respectively. The lip seal is optionally used in combination with a cap seal to form a dynamic seal. The dynamic seals ability to track a noncircular path are particularly beneficial for use in a rotary engine having an offset rotor and with a non-circular inner rotary engine compartment having engine wall cut-outs and/or build-ups. The dynamic sealing forces further provide cap sealing forces over a range of temperatures, pressures, fuel flow rates, varying loads, and operating engine rotation rates.

Abstract: An internal combustion rotary engine includes an air passage configured to allow cool air to flow through the rotor as the rotor moves relative to the housing within the engine. Some embodiments include a removable fuel cartridge.

Abstract: A fluid transfer engine employs a case with a cylindrical inner wall having an operating radius extending from a case axis. A main rotor is carried within the case and incorporates a lobe with a major radius equal to and concentric with the operating radius of the case, the main rotor having a minor radius defining a body. Two peripheral rotors are diametrically opposed with respect to the case axis and rotate within rotor chambers extending from the case. Each peripheral rotor has a radius equal to the minor radius and a center of rotation located at twice the minor radius from the case axis. Each of the peripheral rotors rotates in uniform circular motion with the main rotor in sealing contact with the body and incorporates a sculpted recess for receiving the lobe of the main rotor.

Abstract: A rotary engine has a rotor that has rockers pivoting in chambers. As each rocker pivots, it rotates an outer crankshaft. Each outer crankshaft has a spur gear that engages a stationary ring gear. Spur gear rotation causes the gears and the outer crankshafts to revolve around the ring gear. This cause the rotor to rotate. As the rotor rotates, successive chambers are positioned at the intake, compression, ignition, and exhaust positions. Igniting the fuel in the ignition position pushes the rocker inward to rotate the outer crankshaft associated with that rocker to cause the rotor to rotate.

Abstract: A toroidal engine that can be powered by a fuel/air mixture or by a compressed gas source. The toroidal engine uses one-way bearings to transfer torque generated in a toroidal chamber directly to a drive shaft. Pairs of pistons are mounted on two crank assemblies, which are concentric with the drive shaft. One-way bearings allow the crank assemblies to turn, one at a time, in one direction only. The crank assemblies are directly coupled to the drive shaft, which eliminates the need for complex gear and linkage arrangements. A system can be used with the toroidal engine to alternately stop the crank assemblies at a pre-determined position and to time the ignition of the engine.

Abstract: The present invention relates to a rotary-style internal combustion power-plant, and an electric machine, comprising a compressor housing, wherein a compressor is housed, a electric machine housing, located adjacent to the compressor housing, wherein an electric machine is housed, a charge air cooler housing, located adjacent to the electric machine housing, a combustion rotor housing located adjacent to the charge air cooler housing, a power take-off housing located adjacent to the combustion rotor housing, a combustion rotor located adjacent to a power take-off housing, an auxiliary pump housing (oil, coolant, and fuel) located adjacent to the combustion rotor; and turbine housing located adjacent to the auxiliary pump housing (oil and coolant), wherein the housings are manufactured as separate entities and are stacked along a singled axis.

Abstract: A positive displacement internal combustion engine with the strongest mechanism for converting thermal energy of combustion gases to rotational motion, being composed of a body with spherical combustion chamber, and three spatial eccentrics being placed in said spherical chamber. The mechanism is particularly suitable for heavily loaded detonation and homogeneous charge compression ignition engines.

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: The invention relates to a rotary heat engine that consists of a hollow stator, the inner surface of which has a series of opposite deformations, and also has a cylindrical rotor on the perimeter of which are opposite recesses, defining at least two quadrants or sections that define expansion and expulsion chambers and other admission and compression chambers, wherein each section surface of the rotor has two grooves along which blades slide, by means of bearings that run through guides in the covers of the engine, such that it results in an engine that produces several expansions per revolution, thus managing to perform nearly all the work of the expansions in each cycle, improving the performance of alternate cylinder engines, including the famous Wankel rotary engine.

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: A dual-rotor engine comprises a cylinder assembly, a transmission output mechanism, a rotor control mechanism and a lubrication system. The cylinder assembly comprises a tubular cylinder (6) and two rotors (1a, 1b). Each of the rotors (1a, 1b) comprises an inner cylindrical cylinder (99a, 99b), a rotor journal (20a, 20b) integrated with the inner cylindrical cylinder (99a, 99b) and two sector pistons (17a, 17b) symmetrically secured to the inner cylindrical cylinder (99a, 99b); four sector pistons (17a, 17b) of two rotors (1a, 1b) are arranged crosswise to each other, and two adjacent sector pistons (17a, 17b) form a combustion chamber. The transmission output mechanism comprises two rotor gears (2a, 2b) and two driving gears (3a, 3b) which engaged with each other respectively.

Abstract: A rotary internal combustion diesel engine (46) comprising: a posterior plate (78), an intermediate plate (80), and an anterior plate (82); a rotor-housing unit (46) on each side of the intermediate plate (80), each containing a yousroid chamber (48), and a 2-apex rotor (56) containing an aperture (58). The chamber (48) wall contains an intake valve (68), an exhaust valve (70), and a fuel supply device (72); in gasoline embodiments, an ignition device (76) is added; compressed air/gas and hydraulic embodiments, require an input port (74) and an output port (70a). A shaft (52) rotatably mounted, extends through the housing, having essentially rectangular segments (54) within the chambers (48). There are seals (not shown) on the rotor apices (60, 62) and on the anterior (82) intermediate (80), and posterior plate (78).

Abstract: A rotary internal combustion engine including: a cylinder having a cylinder circumferential wall provided with a horizontal valve groove on its inner circumferential surface; a working shaft concentrically run through said cylinder and held so as to freely rotate; a rotor comprising a rotor base made up of a circular shell and a rotor blade standing in a radial direction of a rotor base surrounding wall; a shutoff valve to perform intermittent movements of insertion and returning between an outside of said cylinder and a cylinder space; and side ribs each having a longitudinal valve groove.

Abstract: A rotary internal combustion engine including: a cylinder having a cylinder circumferential wall provided with a horizontal valve groove on its inner circumferential surface; a working shaft concentrically run through said cylinder and held so as to freely rotate; a rotor comprising a rotor base made up of a circular shell and a rotor blade standing in a radial direction of a rotor base surrounding wall; a shutoff valve to perform intermittent movements of insertion and returning between an outside of said cylinder and a cylinder space; and side ribs each having a longitudinal valve groove.

Abstract: A “TurboMotor” positive displacement rotary-piston machine comprises a casing having an annular working chamber and intake and exhaust ports, two drive shafts coaxial with the annular surface defining the working chamber and provided with rotary pistons on one end thereof and with arms on the other end thereof, a stationary central gear coaxial with the surface defining the working chamber and with the drive shafts, an output shaft concentric with the drive shafts and having an offset portion carrying a carrier and a planetary gear, the planetary gear being in mesh with the stationary central gear the carrier being pivotally connected to the arms of both drive shafts through the connecting rods. The annular working chamber of the casing communicates with the intake ports and exhaust ports and/or exit channels and entrance channels arranged sequentially and contiguously.

Abstract: Provided is a cat-and-mouse type internal combustion engine of concentric two-rotor/six-piston type, which has a cooling chamber in its cylinder housing and which needs neither any lubricating oil nor any valve mechanism so that its structure is simple and compact and can be easily manufactured. Further provided are a variable correlation type crank for a constant-pressure burning (CPB) engine of a variable compression ratio, and an inertial correlation type crank for a premixed compression ignition (HCCI), thereby to realize an internal combustion engine, which matches fuels of various kinds and which has a high energy efficiency and a clean exhaust gas.

Abstract: A rotary internal combustion engine having an insert opening defined in a hot area of one of the walls of the stator body and in communication with its internal cavity, at least one groove defined within the opening around a perimeter thereof, at least one coolant inlet channel defined therein in communication with each groove, and at least one coolant outlet channel defined therein in communication with each groove. A cooling jacket lines the insert opening, the cooling jacket cooperating with each groove to define a cooling gallery around the insert opening. An insert is sealingly received in the cooling jacket, the insert being made of a material having a greater heat resistance than that of the wall.

Abstract: An engine with an output shaft extending through the engine block and generally parallel to the piston, the engine includes a boost piston cylinder integral to the cylinder, and a boost piston for producing compressed air so as to supercharge the engine. The engine further includes an energy translation mechanism translating linear movement into rotary movement, an energy translation mechanism for reducing the side force that the piston exerts against the inner wall of the combustion chamber, an energy transforming member working in concert with an engine torque absorbing/motion control torque reaction device to eliminate the lemniscate motion from being translated to the piston and to absorb all engine torque to case ground through a rolling element bearing, and a port time control system having a shaft phaser to adjust the phase of the pistons or the position of the air control valve.

Abstract: Unique engines, air compressors, and pneumatically driven electrical generators are disclosed. The engine employs a rotor having a number of pistons slidably disposed within respective cylinder bores extending into the rotor periphery. As the rotor spins within a stator, each cylinder bore passes a combustion stage at which the piston is driven further into the rotor toward a bottom of the respective cylinder bore. Valves at the bottom of the cylinder discharge air that is compressed by this piston downstroke, and admit new intake air during an opposing upstroke. The unit thus operates as a self driven compressor, or engine-compressor combination, and the compressed air may be used to pneumatically drive a turbine of an electrical generator. A carbon splitter dissociates carbon and oxygen molecules from the carbon dioxide in the air downstream of the generator turbine, reducing the overall carbon dioxide output of the system.

Abstract: Axially protruding, centrally cooled pistons rotate around a stationary primary rotation axis within a cylindrical piston chamber. The pistons are held on both of their axial ends by concentrically rotating crank disks as intertwined rotary assemblies. On the outside of each crank disk is hinged a driving piston that slides in a radial guide of two flywheels oppositely axially adjacent the piston chamber and crank disks. The flywheels rotate around an offset secondary rotation axis. As a result. The pistons are individually and oppositely alternately accelerated and decelerated. Volumes between them angularly expand and contract. Inlets and outlets are positioned along the piston chamber circumference in correspondence with expansion and contraction phases of the rotating volumes. A low number of moving parts, area sealed volumes, no valves, no dead volume, balanced mass forces, vibration free rotation and short force transmission paths provide for lightweight construction and high rotational speeds.

Abstract: A rotary engine that performs intake-exhaust, compression and explosive combustion without having moving piston heads in the rotor, is capable of obtaining large output with simpler construction. A flywheel rotor is arranged inside a cylinder that is inside a housing of a rotary engine, and is integrated into a single unit with a piston head that comes in contact with the inner wall. Direction of rotation of the rotor, An exhaust valve, an explosion pressure stopper valve and a fuel-intake closing valve are provided in the cylinder, Each of these valves operate via active pins that are engaged in guide grooves on the outer surface of the rotor and a guide groove on a cam of the output shaft, to execute the intake-exhaust, compression and explosive combustion.

Abstract: An internal combustion engine having a generally rotary design is described. The engine includes a rotor that alternately rotates about first, second, and third axes of rotation as the rotor circulates within the engine. Each axis of rotation is about perpendicular to the other two axes of rotation. The rotor includes two flanges that alternately compress fluid in combustion chambers as the flanges rotatably enter and sweep through compression lobes. Detonation of compressed, combustible fluid occurs in the combustion chambers, force from the detonation driving the rotor about the axes of rotation. The rotor exerts maximum leverage on a power shaft at the point of detonation, and continues to exert similar leverage on the power shaft as the rotor rotates. The engine typically includes one or more power modules, each of the one or more power modules having three compression lobes and three combustion chambers.

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: The invention relates to heat engines and more specifically to positive displacement internal combustion engines, and is particularly concerned with oscillating engines i.e. engines, in which piston executes oscillating motion. The invention provides the optimal, “canonical” form for the two stroke oscillating engine of unique strenght and compactness.

Abstract: The invention relates to a novel pressure engine, in particular an internal combustion engine which includes an annular structure, a driven shaft running along the annular axis, an annular housing with a housing wall and at least one rotating piston that rotates in the annular housing along a circuit in a sealed manner in relation to the housing. The piston is rotationally fixed to the driven shaft by a connection member and delimits a segment shaped combustion chamber that rotates with the piston, at least on the side lying in the rotation direction when viewed from the combustion chamber. The chamber has connections at given points on the annular housing to a compressed air supply and to an exhaust system. This piston has a piston housing which contains an inner piston which is pushed towards the combustion chamber by a pre-tensioning force.

Abstract: The fluid system is intended for an oscillating-piston engine (100) which has at least two double-armed oscillating pistons (4) arranged in a spherical housing (19) and revolving together about an axis (23) of revolution arranged in the housing center, wherein the oscillating pistons, when revolving, mutually perform reciprocating oscillating movements about an oscillation axis (24) perpendicular to the axis (23) of revolution, and guide members (5) attached to at least two pistons (4) engage in at least one guide groove (17) formed in the housing (19) and serving to control the oscillating movements. The fluid system (70) comprises at least one central feed opening (1), lying in the vicinity of an end of the axis (23) of revolution, for a fluid, continuous cavities and/or bores (10) in the pistons (4) for the fluid, and a fluid discharge on the outer side (3) of the respective piston.

Abstract: A rotary piston engine with a frame, a cylinder liner mounted rotatably therein, a rotor mounted coaxially in the cylinder liner and a gear mechanism connecting the frame, the liner and the rotor, where the gear mechanism is outside a working space arranged between liner and rotor and where the gear mechanism couples the cylinder liner and the rotor for a relative movement periodically oscillating between positive and negative rotational speed. The gear mechanism and the liner form with the rotor a transmission with five rotational joints with a degree of freedom of one and one rotational/prismatic joint, where the gear mechanism has a rotational element mounted rotatably by a first rotational joint on the frame and a connecting rod connected rotatably by a second rotational joint to the rotational element and rotatably by a third rotational joint to the cylinder liner and by the rotational/prismatic joint to the rotor.