| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 123241000 |
With compression, combustion, and expansion in a single variable volume
| 70 |
| 123205000 |
With fuel injection means
| 26 |
| 123221000 |
With transfer means intermediate single compression volume means and single expansion volume means
| 21 |
| 123210000 |
With ignition means
| 19 |
| 123212000 |
With plural compression volume means
| 7 |
| 123204000 |
With compression volume means in uninterrupted communication with expansion volume means
| 6 |
| 123202000 |
With means to control degree of compression | 5 |
| 20100116241 | Split Cycle Variable Capacity Rotary Spark Ignition Engine - A split-cycle variable capacity rotary spark ignition engine system having at least a first rotary configuration (C | 05-13-2010 |
| 20130025566 | ROTARY INTERNAL COMBUSTION ENGINE WITH VARIABLE VOLUMETRIC COMPRESSION RATIO - A method and apparatus for controlling an air input in a rotary engine, including selectively controlling inlet ports communicating with an internal combustion cavity of the engine, the ports located serially downstream of the exhaust port. The inlet ports are controlled to alter air intake at various engine operational stages, such as start up, idle, etc., to allow for varying operational requirements to be met. For example: when a power demand on the engine is lower than a predetermined threshold, control may be effected by opening a primary inlet port and closing a secondary inlet port; and, when the power demand exceeds the predetermined threshold, control may be effected by opening the primary inlet port and opening the secondary inlet port, the secondary inlet port being in communication with the exhaust port throughout portions of the engine revolution to purge exhaust gases. | 01-31-2013 |
| 20140076271 | Internal combustion engine with direct air injection and pivoting valve - An internal combustion engine is provided. The engine comprises at least one combustion chamber. The engine is suitable for various types of fuel. The engine, depending on fuel type, may have at least one spark plug. The engine uses an external source of compressed oxidant, such as air, which is delivered from a compressor and/or pressurized storage tank. Compressed oxidant, such as air, is delivered directly into the combustion chamber. Fuel is delivered directly into the combustion chamber. Oxidant and fuel mixture is ignited either by means of a spark plug, laser ignition, or by other means, or ignites spontaneously, depending on fuel type and pressure in the combustion chamber. The engine may comprise at least one cylinder, or may be of rotary or other type. A hybrid vehicle based on such an engine is provided. An automatic parking system for such a vehicle is provided. | 03-20-2014 |
| 20140261292 | INTERNAL COMBUSTION ENGINE WITH PORT COMMUNICATION - An internal combustion engine with rotatable bodies each received in a respective internal cavity. The engine includes at least one inlet port for each internal cavity in fluid communication with the combustion chamber(s) thereof at least during their intake phase and a beginning of their compression phase. The bodies are angularly offset with the beginning of the compression phase of the combustion chamber(s) defined by each body being simultaneous with at least a beginning of the intake phase of the combustion chamber(s) defined by a different one of the bodies. A respective conduit provides a fluid communication between an inlet port for each body and an inlet port for the different one of the bodies, with each conduit being in fluid communication with a plenum for receiving pressurized air. A method of feeding air to an internal combustion engine is also provided. | 09-18-2014 |
| 20160040588 | INTERNAL COMBUSTION ENGINE WITH PORT COMMUNICATION - A method of feeding air to an internal combustion engine having at least first and second internal cavities, including: completing the intake phase of the first combustion chamber of the first internal cavity by feeding compressed air into the first combustion chamber until a maximum volume thereof is reached; during a beginning of the compression phase of the first combustion chamber and a simultaneous beginning of the intake phase of the second combustion chamber of the second internal cavity, feeding compressed air from the first combustion chamber into the second combustion chamber; closing a communication between the first and second combustion chambers and completing the intake phase of the second combustion chamber by feeding compressed air into the second combustion chamber until a maximum volume thereof is reached. | 02-11-2016 |
| 123216000 |
With charge treatment means | 4 |
| 20110083637 | Rotary double engine - A rotary double engine comprising of two separate engines, one in the peripheral area of the housing cavity and one in the central area of the rotor. A number of expansion chambers and compression chambers are formed between the anterior wall, posterior wall, housing inner wall and movable vanes which extends from the inner peripheral surface of the housing through the slots in the eccentric located rotor to the centrally located cam and bears on the inner peripheral surface of the housing, inner surface of the anterior wall, inner surface of the posterior wall and outer surface of the cam. The expansion chambers expand and contract during the operation of the engine. The output shaft is connected to and passes centrally through the rotor and extends out through the anterior wall and posterior wall and bearings. Intake port in the housing front wall or posterior wall allows pressurized air or air/fuel mixture to pass into the expansion chambers of the peripheral engine and or central engine. The rotor and shaft are rotated by the compressed gas and/or combustion pressure on the vanes and rotor from the expanding pressurized air or combustion of the air/fuel mixture. Expanded pressurized air from the peripheral engine is passed through passage to the central engine to be further expanded or to be mixed with a fuel mixture to be ignited and the combustion gases used to rotate the rotor and shaft and to heated the pressured air as in the peripheral engine. | 04-14-2011 |
| 20110162618 | REFLECTIVE PULSE ROTARY ENGINE - A rotary engine includes a rotor having one or more combustion chambers connected to an exhaust passageway extending radially outward from the combustion chamber to an exhaust port adjacent a peripheral edge of the rotor. The exhaust gas is expelled at an angle to thereby generate cause the rotor to rotate. The housing may include reflective surfaces that reflect shockwaves from the exhaust gas back towards vanes on the rotor to thereby capture additional energy from the exhaust gas. The housing may also include stators that capture additional energy from the exhaust gas and rotate the rotor. An intake port fluidly connected to the combustion chamber is aligned with an opening in the housing as the rotor rotates to thereby allow comprised air to flow into the combustion chamber. As the combustion chamber rotates, it is closed off by a closed portion of the housing, fuel is injected, and ignited, to thereby generate exhaust gases and generate power. The engine does not include reciprocating components, and relatively few moving parts are required. | 07-07-2011 |
| 20120118261 | AXIAL-PISTON ENGINE, METHOD FOR OPERATING AN AXIAL-PISTON ENGINE, AND METHOD FOR PRODUCING A HEAT EXCHANGER OF AN AXIAL-PISTON ENGINE - The aim of the invention is to improve the efficiency of an axial-piston motor comprising at least one working cylinder fed by a continuously operating combustion chamber comprising a pre-combustion chamber and a main combustion chamber. To this end, the axial-piston motor is provided with a pre-combustion chamber comprising a check valve. | 05-17-2012 |
| 20150354356 | AXIAL PISTON MOTOR AND METHOD FOR OPERATION OF AN AXIAL PISTON MOTOR - To provide an axial piston motor, comprising at least one main burner, which has at least one main combustion space and at least one main nozzle space, and comprising at least one pre-burner, which has at least one pre-combustion space and at least one pre-nozzle space, wherein the pre-combustion space is connected to the main nozzle space by way of at least one hot gas feed, that has improved operating and control characteristics even under non-steady-state operating conditions, the pre-nozzle space of the pre-burner has at least one auxiliary hot gas feed. | 12-10-2015 |
| 123203000 |
With combusted gas treatment or handling means | 4 |
| 20090013960 | Rotary internal combustion engine - This invention presents a compact, light, efficient and high power output rotary internal combustion engine utilizing the waste heat. The engine has a rotor rotatable within a housing, but has no piston. The rotor has a plurality of combustion chambers, with inlets for introduction of fuel and outlets for exhaust of combustion products. The exhaust imparts rotation to the rotor within the housing. Fixed end caps are provided at each end of the housing. The engine is cooled with steam, air and water. The engine is suitable for applications that require efficient, high power to weight ratio, such as aircrafts, ships, and heavy duty transportation. The engine may use low grade fuel with a low cetane number, by using specially treated pulverized coal. | 01-15-2009 |
| 20150068488 | Energy Burst Engine - An engine comprises a rotor disposed within a housing having a side wall, a top portion, and a bottom portion. The housing includes at least one energy burst ignition chamber and electrical device that introduces an electric charge into at least one energy burst ignition chamber. The rotor is constructed and arranged to spin within the housing by action of a force. At least one energy burst ignition chamber is constructed and arranged to electrically react with the gas disposed in at least one chamber such that the gas expands and drives the rotor. A control system is used for introducing electric charges into at least one energy burst ignition chamber at a controlled time interval. | 03-12-2015 |
| 20150075483 | ROTARY INTERNAL COMBUSTION ENGINE WITH EXHAUST PURGE - In one aspect, described is a rotary engine having a purge port located rearwardly of the inlet port and forwardly of the exhaust port along a direction of the revolutions of the rotor, the purge port being in communication with the exhaust port through each of the chambers along a respective portion of each revolution, and the inlet and outlet ports being relatively located such that a volumetric compression ratio of the engine is lower than a volumetric expansion ratio of the engine. | 03-19-2015 |
| 20160251961 | ROTARY INTERNAL COMBUSTION ENGINE, GAS COMPRESSOR, AND LIQUID PUMP | 09-01-2016 |
| 123247000 |
Only combustion and expansion of charge in engine | 2 |
| 20090126681 | Rotary Internal Combustion Engine - The present invention provides an improved rotary internal combustion engine having: a housing structure ( | 05-21-2009 |
| 20100300402 | Rotary piston for a rotary piston engine and rotary piston engine - The invention relates to a rotary piston engine, in particular a rotary engine of trochoidal design, with a side disk ( | 12-02-2010 |
| 123214000 |
With plural expansion volume means | 1 |
| 20140345562 | Single-stage and three-stage internal combusion rotary engines - This is a description of a single-stage engine having a cylindrical rotor with four curved blades attached by means of free rotating rods. The curved blades have extended, half-round knobs on opposite sides, aligned with the top surface that fit in the extended hemispherical grooves on the interior side-walls of the housing. The egg-shaped housing facilitates the compression and exhaust cycles. The two housing halves are joined together at the center. | 11-27-2014 |
| Entries |
| Document | Title | Date |
|---|
| 20080271701 | Inverted cardioid wankel engine - An internal combustion engine comprising a support structure, including a tube and a hollow stator core, supported by and rigidly affixed to the tube. Additionally, a rotor assembly is eccentrically and rotatably mounted about the stator core and having a pair of partial sidewalls, each of which defines a circular opening. A pair of shaft seals, in which each shaft seal is set into one of the circular openings and are rotatably mounted about the tube. The stator core, rotor and shaft seals together define multiple, separate sealed chambers that change volume as the rotor moves. Finally, ignition, intake and exhaust mechanisms are mounted internal to the hollow stator core. | 11-06-2008 |
| 20090007882 | Compound cycle rotary engine - A compound cycle engine system has a rotary engine, which rotary engine generates exhaust gas. The system further has a compressor for increasing the pressure of inlet air to be supplied to the engine to a pressure in the range of from 3.0 to 5.0 atmospheres and an intercooler for providing the inlet air to the engine at a temperature in the range of from 150 to 250 degrees Fahrenheit. The system further has one or more turbines for extracting energy from the exhaust gas. The Miller Cycle is implemented in the rotary engine, enabling the compression ratio to be lower than the expansion ratio, allowing the overall cycle to be optimized for lowest weight and specific fuel consumption. | 01-08-2009 |
| 20090133664 | Extreme efficiency rotary engine - This rotary engine configuration combines the four cycles required to produce power, thrust, exhaust, intake, and compression which are merged into a single cycle per revolution. Most engine designs need two revolutions. This requires the mechanical functions to produce power simultaneously; consequently, the parts are performing several functions at the same time. So, only a few parts are needed. The rotor is the big worker. Combustion turns the rotor power cog one way, while the exhaust gases go the opposite way to escape through an opening directly behind the power producing face, into the open air. In this concept, where many power generating functions are going on at the same time, only a few moving parts are needed. Fewer parts used translate into the many benefits described in the claims. An exhaust gas fan reduces the exhaust gas exit pressure further maximizing fuel economy. A kit of energy storing rings is provided. These rings can also provide pitch and roll stabilization forces for the vehicle. | 05-28-2009 |
| 20100024763 | Low speed valveless horizontally opposed piston rotary internal combustion engine - Presented is a very low speed, high torque, horizontally opposed, rotary, valveless, Otto cycle piston engine producing four power strokes per revolution, the engine consisting of a fixed engine case assembly having upper and lower plates, the engine rotor assembly having upper and lower plates, sandwiching a single, closed ended cylinder assembly, the cylinder containing intake and exhaust-intake ports, independently reciprocating power and head pistons, each piston being reciprocally controlled by its vertically projecting piston bearing sets contacting respective sets of upper and lower, inner and outer peripheral cam plates, the engine being thus rotated, the cylinder being lubricated by a sealed, recirculating air-oil mist system, the engine rotor assembly having a lower, vertically projecting gear box housing containing a gas porting cap, a vertical drive shaft, two counter rotating output shafts, intake and exhaust pipes, and an exhaust gas filter canister. | 02-04-2010 |
| 20100071657 | Rotary heat engine - A rotary internal combustion engine has two opposing rotary discs. Each rotary disc has a half-cylindrical chamber located around its perimeter. An outer casing encompasses both rotary discs. Intake and exhaust ports and necessary engine controls are formed in said outer casing. Pistons formed in each said disc. Half of said piston is connected permanently to one said rotary disc the other half of said piston slides in the half cylindrical chamber of the opposing said rotary disc. The pistons and cylindrical chambers develop varying volumes in each chamber, depending on the position of each disc and respective piston. These varying volumes perform different cycles common to four stroke piston engines. Mechanical devises allow the discs to rotate in only one direction. Mechanical devises allow the disc to engage output shaft in only one direction. From output shaft work can be derived. | 03-25-2010 |
| 20100170469 | ROTARY ENERGY CONVERTER WITH RETRACTABLE BARRIER - A rotary internal combustion engine includes an outer housing and an inner housing and an enclosure defined therebetween. At least one of the outer and inner housings is rotatable relative to the other and at least two barriers are disposed in the enclosure and divide the enclosure into a combustion chamber and an exhaust chamber. At least one barrier is rotatable relative to at least one other barrier and at least one barrier comprises a retractable barrier mounted along a pivot axis and is pivotable between an extended position and a retracted position. An intake port, exhaust port, and ignition source are also provided. A method of combusting a fuel comprises rotating a drive member to expand a combustion chamber and substantially isolate the combustion chamber from an exhaust chamber, and introducing and combusting a combustion fluid and a fuel in the combustion chamber as the combustion chamber is expanding. | 07-08-2010 |
| 20100186707 | High-torque rotary radial internal combustion piston engine - The engine under U.S. Pat. No. 7,421,986 comprises a pair radially opposite cylinders spaced in the plain of the working cylinders of the above engine coaxially apart in the opposite sides of the rotor along the axis being perpendicular to the above said cylinders axes and to the rotor axis and extends cross a rotor axis. There are a pistons spaced in each of said cylinders for displacement along the cylinder axis. Each of the said piston is connected respectively to the rotary ring by crankshaft. The pressure in all above cylinders afford resultant torques which act on the rotor and on the rotary ring and the balance of all resultant torques on the driven shaft ensure high affectivity of the novel engine. | 07-29-2010 |
| 20100218741 | Thermal engine for operation with combustible and noncombustible fuels and electric energy - A thermal engine includes a cylinder and piston and an insulated thermal battery including at least a thermal mass such as the engine block itself for storing and retaining heat to enhance or cause fluid expansion within the cylinder and drive the piston, the thermal battery optionally including an electrolyte chamber containing a thermal electrolyte for functioning as an electric thermal battery. Heat is stored in the thermal battery such as by activating electric resistance heating elements in the thermal mass. The stored heat either causes expansion of a non-combustible expansion fluid such as water or enhances the expansion of a combustible expansion fluid such as gasoline. Where the thermal battery is an electric thermal battery containing an electrolyte, the storage of heat also stores electricity which can be used to power an electric motor. | 09-02-2010 |
| 20100251990 | Engine - An engine comprising a first section having a first face and a second section having a second face, the first and second faces being opposed to one another and arranged for relative rotation, the first face comprising at least one chamber, the second face comprising a plurality of discrete regions each being associated with a discrete stage of a combustion cycle, wherein the first and second faces are arranged such that relative rotation thereof causes the at least one chamber of the first face to be exposed to the discrete regions of the second face. | 10-07-2010 |
| 20100263622 | ROTARY ENGINE - A rotary engine includes one or more combustion chambers around a turbine, and a movable plate at an opening of the combustion chamber and rotated 90 degrees and protruded from the turbine. Both sides of the movable plate and the diameter of the turbine form an align straight line. The turbine comprises a slide member, a U-shape groove, a ditch with an open end coupled to the movable plate to form the explosion chamber. During explosion, the movable plate drives the turbine to rotate while eliminating the waste gases. The air current and pressure of the explosion apply forces to rotate the bottom of the combustion chamber. The volume of the explosion chamber can be extended to provide a relatively large open space since the movable plate can be moved and a higher pressure gases will be reduced rapidly so that the high-pressure gases can produce a greater force. | 10-21-2010 |
| 20100275876 | Extreme efficiency rotary engine - This rotary engine configuration combines the four cycles required to produce power, thrust, exhaust, intake, and compression which are merged into a single cycle per revolution. Most conventional engine designs need two revolutions. This requires the mechanical functions to produce power simultaneously; consequently, the parts are performing several functions at the same time. So, only very few parts are needed. The rotor is the big worker. Combustion turns the rotor power cog one way, while the exhaust gases go the opposite way to escape through an opening directly behind the power cog, into the open air. In this concept, where many power generating functions are going on at the same time, only one moving assembly is needed. Fewer parts used translate into the many benefits described in the claims. The fact that 345 degrees pressure differential are being applied to the power cog is doing work. This work produced during the 345 degrees maximizes more fuel economy compared to conventional engines. | 11-04-2010 |
| 20100319652 | ROTOR HOUSING ASSEMBLY FOR ROTARY ENGINE AND RELATED DEVICES AND METHODS - A rotor housing assembly is adapted such that a barrel valve is arranged to regulate the flow of fuel/air mixture both from outside the housing assembly into an internal lubrication flow path and from the internal lubrication flow path into an internal chamber. The barrel valve includes a substantially cylindrical valve member diagonally traversed by a separation plate, dividing the interior of the valve member into an inlet chamber and an outlet chamber. Fuel/air mixture entering the housing assembly from outside passes through the inlet chamber and fuel/air mixture entering the internal chamber passes through the outlet chamber. | 12-23-2010 |
| 20110000460 | CONTROL OF A ROTARY ENGINE - Kinematics of a rotary piston engine are guided by a sliding guidance mechanism mounted in a biangular piston. The mechanism is arranged relative to a fixed point of a housing having a runway formed with a single-arc trochoid. A sliding component moves within a groove in the piston. A housing-mounted pin is coupled to the sliding component and defines a rotating radius during motion relative to the piston. The piston has a minimal opening in a sidewall for the pin to couple to the sliding component allowing a maximal portion of the piston to be available for lateral fluid exchange during piston movement. | 01-06-2011 |
| 20110100321 | ROTARY POWER DEVICE - A rotary power device comprising: a toroidal cavity, an inclined power shaft, two rotors carrying pistons and two concentric Cardan joints. | 05-05-2011 |
| 20110107999 | Rotary Internal Combustion Engine - 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. | 05-12-2011 |
| 20110162617 | A DUAL-ROTOR ENGINE - 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 ( | 07-07-2011 |
| 20110174261 | ROTARY ENGINE WITH ALIGNED ROTOR - A shaft for a rotary engine defines an axis of rotation, a first eccentric cam axially displaced from a second eccentric cam along the axis of rotation, the first eccentric cam aligned with the second eccentric cam. | 07-21-2011 |
| 20110214638 | HIGH LEVERAGE ROTARY INTERNAL COMBUSTION ENGINE - 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. | 09-08-2011 |
| 20110259295 | HIGH PERFORMANCE CONTINUOUS INTERNAL COMBUSTION ENGINE - An internal combustion engine that includes a rotary device is disclosed. A rotary head has an expansion chamber that includes intake and exhaust slots. A drum with axial slots radially displaced over its circumference is disposed in close noncontacting proximity to the inner side of the rotary head. The drum and the rotary head are substantially rotationally symmetric about a common axis. Radially moveable plates respond to a mechanical control mechanism adapted to move each plate from a retracted position in which the plate is located entirely within the outer surface of the drum and an extended position in which the plate is in close proximity to an upper surface of the expansion chamber to substantially seal the expansion chamber. At least one of the plates is substantially always present between the intake slot and the exhaust slot such that when the combustion gas is under pressure within the expansion chamber force is exerted on the plate and the drum to produce rotational motion of the rotary head about the common axis. | 10-27-2011 |
| 20110271929 | ROTARY COMBUSTION APPARATUS - A combustion apparatus having a housing including an inner surface that defines at least one chamber, a rotor, a rotor shaft, an intake shaft, an exhaust shaft, and a gearing mechanism. The chamber includes an intake valve port and an exhaust valve port, and the rotor shaft is coupled to a gear at one end and has at least two opposing flat surfaces received by an opening in the rotor. The intake and exhaust shafts are geared to the rotor shaft and have at least one opening each that is aligned with the intake and the exhaust valve ports. A gearing mechanism selectively controls the duration in which the openings are aligned with the ports. Two or more rotors may be utilized to produce more power and reduce vibration. | 11-10-2011 |
| 20120145119 | ROTARY DEVICE - A rotary device is described for use in a rotary engine, or a compressor, or turbine, the rotary device comprising two rotors disposed adjacent each other and rotatable about substantially parallel axes of rotation. Each of the rotors has protrusions extending therefrom at regular intervals about the circumference of each to define an open portion of a sealable compression chamber between adjacent protrusions. Each protrusion has two side surfaces and a projecting end surface, wherein the meeting point between each side surface and the projecting end surface defines a tip. The two rotors are arranged such that upon contra rotation of the rotors, a protrusion of one of the rotors engages between a pair of protrusions on the other rotor, and the tips of the engaging rotor are in constant sealing contact with the opposing side surfaces of the pair of protrusions for a predetermined period of time. During the predetermined period of time, a sealed chamber is formed and the volume of the chamber is reduced to a predetermined level by the contra rotation. | 06-14-2012 |
| 20120160209 | TURBINE HAVING COOPERATING AND COUNTER-ROTATING ROTORS IN A SAME PLANE - The present disclosure relates to turbine comprising a housing having an input port and at least one output port. The turbine also comprises two rotors enclosed within the housing. The rotors counter-rotate within a same plane. In their rotation, the two rotors cooperate to create chambers within the housing. A chamber is created and starts to expand while another chamber having been created earlier continues its own expansion. One of these expanding chambers is connected to the input port. A third chamber is in contact with an output port. The turbine may be used as a compressor, an energy generator, a pump or as a building block of a motor. | 06-28-2012 |
| 20120192830 | INTERNAL COMBUSTION ROTARY PISTON ENGINE - An internal combustion rotary piston engine includes a cylinder housing a power piston and a second piston which is coupled to the power piston. A shaft is coaxially supported in the cylinder and is able to rotate along a longitudinal axis that is fixed from translational motion along the axis. The pistons are mounted on the shaft in a manner where they can reciprocate along a shaft and rotate with a shaft. A track and bearing system couples the second piston to the cylinder and is configured to cause the second piston and thus the piston and shaft to rotate as the piston reciprocates along the shaft. The track of the track and bearing system is formed with a radius which is greater than the radius of the power piston. The torque produced by the engine can be varied by varying the radius of the track. | 08-02-2012 |
| 20120210973 | ROTARY INTERNAL COMBUSTION ENGINE - 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. | 08-23-2012 |
| 20120240896 | Internal Combustion Engine with Rotating Cylinder Block - The invention presents an internal combustion engine with rotating cylinder block able to use liquid and gas fuel. The design allows substantial reduction of weight and vibration in comparison with engines presently in use and will be preferred for use in weight sensitive vehicles. Ability to make part of the cylinders inactive improves fuel efficiency at partial loads. | 09-27-2012 |
| 20120285415 | Internal combustion engine with direct air injection - An internal combustion engine is provided. The engine comprises at least one combustion chamber. The engine is suitable for various types of fuel. The engine, depending on fuel type, may have at least one spark plug. The engine uses an external source of compressed oxidant, such as air, which is delivered from a compressor and/or pressurized storage tank. Compressed oxidant, such as air, is delivered directly into the combustion chamber. Fuel is delivered directly into the combustion chamber. Oxidant and fuel mixture is ignited either by means of a spark plug, laser ignition, or by other means, or ignites spontaneously, depending on fuel type and pressure in the combustion chamber. The engine may comprise at least one cylinder, or may be of rotary or other type. A hybrid vehicle based on such an engine is provided. An automatic parking system for such a vehicle is provided. | 11-15-2012 |
| 20120312274 | ROTARY TYPE INTERNAL COMBUSTION ENGINE - The engine includes a stator including an inlet to admit a compressed gaseous oxidant flow, and an exhaust to discharge burnt gases; and a rotor mounted in the stator in a fluid-tight manner and rotatable with respect to the stator around a rotation axis. The rotor has an inlet orifice oriented in the axial direction and faces the inlet opening in a manner to receive the compressed air flow, a combustion chamber communicating with the inlet orifice, and an exhaust duct which leads in a transverse direction from the combustion chamber to the periphery of the rotor for discharging burnt gases through the exhaust. The inlet, the combustion chamber and the exhaust duct are arranged in fluid communication with each other during the rotor rotation, without the interposition of valve members. Seal members seal the inlet orifice and the exhaust duct when they face the internal surface of the stator. | 12-13-2012 |
| 20130025565 | MULTI-ROTOR ROTARY ENGINE ARCHITECTURE - A multi-rotor internal combustion engine has a plurality of rotary internal combustion units axially distributed along an engine axis. Each unit has a rotor mounted on an eccentric portion of the shaft inside a housing. The housings of adjacent rotary internal combustion units have different angular positions about the engine axis so as to angularly offset the housing from adjacent housings, which may provide for a more uniform temperature distribution around the housings and may also or instead allow optimising of the balancing of pressure induced side loads on the shaft of the rotors. | 01-31-2013 |
| 20130032121 | ROTARY ENGINE - 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. | 02-07-2013 |
| 20130061828 | Rotary Engine - A rotary engine is provided. The engine has a main body that fits within a housing to form an annular chamber. A piston moves within the annular chamber along an annular path. A door assembly operates to block and unblock the annular chamber, opening to unblock the chamber as the piston approaches the door and closes to block the chamber after the piston has travelled past the door. A temporary combustion chamber is formed between the closed door and the piston as the piston moves away from the door. | 03-14-2013 |
| 20130118445 | ROTARY PISTON ENGINE - The rotary piston engine | 05-16-2013 |
| 20130213346 | STRAIGHT SHAFT ROTARY ENGINE - A straight shaft non-planetating rotary piston engine includes a housing and at least one rotating piston mounted for circular rotation about an axis within the housing. The piston and the housing define an expansible combustion chamber that produces at least one combustion events for every rotation of the piston about the axis. The invention also includes a moveable cylinder head having a profile roller. The profile roller cooperates with an open face profile impressed into a rotary encoder. The open face profile is configured to pull the cylinder head into near-contact with the rotating piston face, and the moveable cylinder head is spring biased to repel the moveable cylinder head away from the rotating piston face. | 08-22-2013 |
| 20130228149 | Rotary Internal Combustion Engine - The present invention is a rotary internal combustion engine, comprising an outer stator shell which forms several equal-sized stator chambers and an oscillating axle which forms several pistons corresponding to the stator chambers and separating each stator chamber into two sealed combustion chambers. When operating, the combustions of the combustion chambers cause the oscillating axle to oscillate. The oscillating motion is then translated to a mono-directional rotary motion, which provides the power output. | 09-05-2013 |
| 20130228150 | Rotary, Internal Combustion Engine - 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. | 09-05-2013 |
| 20130247866 | PORT FOR ROTARY INTERNAL COMBUSTION ENGINE - A Wankel engine with a peripheral wall of the stator body including a non-circular opening formed therethrough and defining at least part of a port. The opening has a perimeter defined by a first edge and remaining edges, with the remaining edges being located downstream of the first edge with respect to a direction of rotation of the rotor. The remaining edges extend non parallel to a longitudinal axis of the apex seals. | 09-26-2013 |
| 20130263817 | Double Bar Single Wheel Rotary Combustion Engine - Rotating bar within eccentric wheel was previously invented. But that was only suitable for pumps. In my proposed invention I used two dissimilar bars of same length named as prime mover and follower which are incorporated within eccentric wheel. The follower bar-end is hinged with prime mover bar-end while that prime mover bar-end is fixed at the centre of the circular housing named as power shaft. Prime mover rotates the eccentric wheel and that wheel rotates the follower the hinged joints and this assembly rotation creates differential volume repetitively and spark in compression stage creates combustion. This principle of engine operation also includes different sealing types and outward opening type cam assembly. In conventional reciprocating engine lots of power is lost because of change of direction of piston motion. This problem can be overcome by my proposed engine design which will lead to higher efficiency in automobile. | 10-10-2013 |
| 20140020651 | ORBITING PLANETARY GEARING SYSTEM AND INTERNAL COMBUSTION ENGINE EMPLOYING THE SAME - The innovation concerns an orbiting planetary gearing system and an internal-combustion engine employing the same. In aspects, the engine can comprise an engine housing having a first wall delimiting a first combustion chamber, a first primary member having a first piston and a second primary member having a second piston. The pistons can also delimit the first combustion chamber. The first wall defines at least a section of a toroid, and the pistons are guided along a curved path defined by the section of the toroid. The primary members can be coupled to an intermediate member. In various embodiments, the intermediate member can couple motion of the primary members to a crankshaft via an orbiting planetary gearing system. | 01-23-2014 |
| 20140026845 | DIRECT CIRCULAR ROTARY INTERNAL-COMBUSTION ENGINE WITH TOROIDAL EXPANSION CHAMBER AND ROTOR WITHOUT MOVING PARTS - Direct circular rotary internal-combustion engine with toroidal expansion chamber and rotor without moving parts, which directly converts the combustion expansion into a rotary movement of the shaft thereof, receives the compressed oxidizing agent at high pressure, does not require inertia in order to function, and in which combustion can take place in a static combustion chamber. | 01-30-2014 |
| 20140069367 | Dual tip seals for a rotary engine - A biased dual tip seal arrangement for the rotor ( | 03-13-2014 |
| 20140076270 | ROTARY MACHINE - A rotary machine is provided which includes a chamber. The chamber includes an island having an island outer surface. The outer surface is an elongated convex shape. The island includes a crankshaft port. The chamber includes a front-plate attached to a front surface of the island. A concave shaped contour is included, which is biased toward the island outer surface and which rotates with respect to 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. | 03-20-2014 |
| 20140109864 | HYBRID INTERNAL COMBUSTION ENGINE (VARIANTS THEREOF) - 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. | 04-24-2014 |
| 20140190446 | FIXED VANE ROTARY ABUTMENT ENGINE - A single stroke engine fixed vane rotary abutment engine is provided in which all for phases of combustion are completed during one revolution of a main rotor. Intake and exhaust ducts are timed to be open or closed depending on which of the intake, compression, power and exhaust events is occurring. At least one abutment rotor cooperates with the main rotor having vanes thereon to define a combustion chamber and uncover ports in the stator of the engine to allow air and fuel to enter the combustion chamber and to all exhaust to exit the chamber. | 07-10-2014 |
| 20140230776 | ROTARY ENGINE COMPRISING A CERAMIC MATERIAL - Described is an assembly for an internal combustion rotary engine of a single or multi-rotor type. The assembly includes parts without cooling channels that comprise a monolithic ceramic material or ceramic matrix composite material capable of allowing the engine when assembled to operate at elevated temperatures that would cause metal parts of a metal engine to lose strength, lose structural and mechanical integrity, suffer excessive oxidation/corrosion and/or fail. The ceramic material also allows the engine when assembled to operate with significantly lower heat loss to the surrounding environment as compared with a similar engine made using all metal parts. The ceramic material allows the engine when assembled to operate without requiring substantial cooling elements or an external fluid (e.g. water) cooling system. The engine when assembled as described will retain more heat or operate with a substantially reduced rate of heat rejection when compared to an entirely metal rotary engine. | 08-21-2014 |
| 20140261289 | Rotary Internal Combustion Engine - A rotary internal combustion engine includes an arcuate compression chamber, an arcuate expansion chamber, an output shaft, and a piston coupled to the output shaft for movement through the arcuate compression chamber and the arcuate expansion chamber. The piston has a leading end, a trailing end, an inlet valve that is located at the leading end of the piston for receiving a compressible fluid from the compression chamber and an outlet valve that is located at the trailing end of the piston for expelling a combustion gas into the arcuate expansion chamber. | 09-18-2014 |
| 20140261290 | Rotary Internal Combustion Engine, Gas Compressor, and Liquid Pump - A rotatory internal combustion engine is provided. The engine includes a power module, wherein all moving parts of the engine are positioned within the power module, a housing including an intake and an exhaust, wherein the housing is configured to retain the power module, and a sleeve configured to couple in the housing, the sleeve including a sleeve intake and a sleeve exhaust. | 09-18-2014 |
| 20140261291 | Rotary Piston Internal Combustion Engine - A rotary internal combustion engine of the Wankel type having a housing with a two lobed epitrochoidal inner peripheral surface, a shaft journalled in end housings and a rotor eccentrically mounted on the shaft and geared to rotate at one third the speed of said shaft whereby working chambers are formed between the flanks of the rotor and the housings which vary in volume as the rotor rotates. The rotor is cooled by a fully closed circuit system wherein pressurised gasses are circulated by a centrifugal fan which is directly mounted on the main eccentric shaft, and circulates the gases through a heat exchanger which is integrated into the cool sector of the rotor housing, all components being enclosed within the pressurised system and only one drive shaft using a single high pressure shaft seal assembly emerges from this system. | 09-18-2014 |
| 20140326210 | ROTARY ENGINE ARRANGEMENT - An oil cooled rotary engine comprising a centrally mounted timing gear arrangement. A stationary gear is mounted on a stationary shaft positioned concentrically with the output shaft of the engine. A rotary engine comprising a coaxially positioned expander unit. | 11-06-2014 |
| 20140326211 | INTERNAL COMBUSTION ENGINES - An internal combustion engine has a chamber that has a longitudinal centerline, inlet valving operable to admit constituents of a combustible mixture into the chamber for combustion in the chamber to provide a pressure increase in the chamber and outlet valving operable to release an outflow of liquid from the chamber under an influence of the pressure increase. An annular flow passage is defined in the chamber to conduct liquid towards the outlet valving and cause spiraling of the liquid in the flow passage by which a rotatable part exposed to the spiraling flow is caused to rotate. An electrical generator disposed externally of the chamber is driven by rotation of the rotatable part. | 11-06-2014 |
| 20140352654 | Rotary Wing Engine - Embodiments relate to a rotary internal combustion engine with a sealing structure that enables a rotor and a plurality of wings within a housing to form a plurality of sealed chambers. The wings are connected to the rotor and can rotate about a first axis with reference to the rotor, and the rotor can rotate about a second axis with reference to the housing, the second axis parallel to the first axis. As the rotor rotates within the housing, the wings follow a predefined path, causing the sealed chambers to change in volume. In some embodiments, each sealed chamber undergoes the intake, compression, power, and exhaust cycles of a four stroke engine. | 12-04-2014 |
| 20150034041 | ENGINE - Internal-combustion engine ( | 02-05-2015 |
| 20150144092 | SEAL ASSEMBLY FOR ROTARY-PISTON INTERNAL-COMBUSTIN ENGINE - The invention relates to seal assembly for a rotary piston internal combustion engine comprising a rotating block ( | 05-28-2015 |
| 20160146009 | HCCI ROTARY ENGINE WITH VARIABLE COMPRESSION RATIO CONTROL - There is provided an apparatus for regulating a compression ratio of an HCCI rotary engine. The engine has a rotor piston rotatable in an operating direction. The stator has one or more combustion chamber throughways, each having at least first and second interior walls. The apparatus comprises, within each combustion chamber throughway, an expansion gate slidably received within the throughway and slidably engaged with and adjacent to the first interior wall, a combustion gate slidably engaged with and adjacent to the expansion gate in the operating direction, and a compression gate slidably engaged with and adjacent to both the combustion gate and the second interior wall, and disposed adjacent the combustion gate in the operating direction. Each gate is slidable longitudinally within the combustion chamber throughway. Rotation of the rotor piston, to a position where a lobe end of the piston aligns with a combustion gate, forms a combustion chamber. | 05-26-2016 |
| 20160153348 | FIXED-RAIL ROTOR PUMP AND FIXED-RAIL ROTOR PUMP COMBINED SUPERCHARGING INTERNAL-COMBUSTION ENGINE | 06-02-2016 |
| 20160160751 | Rotary Internal Combustion Engine - A rotary internal combustion engine includes an arcuate compression chamber, an arcuate expansion chamber, an output shaft, and a piston coupled to the output shaft for movement through the arcuate compression chamber and the arcuate expansion chamber. The piston has a leading end, a trailing end, an inlet valve that is located at the leading end of the piston for receiving a compressible fluid from the compression chamber and an outlet valve that is located at the trailing end of the piston for expelling a combustion gas into the arcuate expansion chamber. | 06-09-2016 |
