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| Number | Title | Issue Date |
| 8033265 | Rotary piston internal combustion engine 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, ... | 10/11/2011 |
| 8011346 | Rotary compressed gas engine with pistons This invention relates to an apparatus for producing a rotary motion force by means of a compressed gas rotary engine, rotary type with pistons in the circular rotor, consisting of a housing, a rotor with cylinder chambers containing pistons that has a rod containin... | 09/06/2011 |
| 8001949 | Internal combustion engine An engine with expansion piston located on the end of a motion arm connected to the engine shaft. On the shaft, rotating compression pistons are mounted. The distance between the two piston types allows for the production of great torque. The geometry of expansion c... | 08/23/2011 |
| 7931006 | Valveless rotary internal combustion engine A rotatably alternating air or water cooled two-stroke internal combustion engine comprising a cylindrical casing, and a rotor comprising two radially extending vanes affixed to a shaft rotatably mounted within the casing upon two end plates. Two longitudinally exte... | 04/26/2011 |
| 7827956 | Revolving piston internal combustion engine A revolving piston engine incorporating revolving pistons for improving fuel efficiency, increasing power output, easy cooling and reduced vibration. One or more of revolving piston pairs, each consisting of one piston and one cylinder head, revolve within a ring cy... | 11/09/2010 |
| 7793636 | Apparatus adapted to perform as compressor, motor, pump, and internal combustion engine A rotary apparatus with an enclosure formed by a hollow curved housing along with two sleeves, with two vanes within the enclosure, where one vane is fitted on each sleeve and the space within the enclosure is partitioned into two segregated volumes by the vanes whi... | 09/14/2010 |
| 7730869 | Housing wheel engine Disclosed herein is a housing wheel engine that has a wheel shaped combustion housing, the housing wheel engine can hold several pistons which both sides working inside the combustion housing. The housing wheel engine transfers its rotating movement directly to the ... | 06/08/2010 |
| 7721701 | Rotary scissors action machine A rotary machine is provided having rotating forward and rearward work members having cyclic non-constant angle motion there between, the machine includes a rotating shaft and a first gear eccentrically mounted with the rotating shaft. A reaction gear in mesh with t... | 05/25/2010 |
| 7461626 | Powertrain including a rotary IC engine and a continuously variable planetary gear unit A powertrain for driving a motor vehicle includes an internal combustion engine including first and second rotors supported for rotation about an axis, a first epicyclic gear unit including a first component fixed against rotation, a first driving component, and a f... | 12/09/2008 |
| 7441534 | Rotary engine system This rotary internal combustion engine has two rotatable vane type pistons mounted for axial rotation in a sealed casing. In an exemplary cycle, one piston is released to rotate at or prior to initiating combustion in the combustion space between the two pistons, wh... | 10/28/2008 |
| 7431007 | Apparatus adapted to perform as compressor, motor, pump and internal combustion engine A rotary apparatus with an enclosure formed by a hollow curved housing along with two sleeves, with two vanes within the enclosure, where one vane is fitted on each sleeve and the space within the enclosure is partitioned into two segregated volumes by the vanes whi... | 10/07/2008 |
| 7415962 | Internal combustion engine An internal-combustion engine comprises an engine housing having a first wall delimiting a first combustion chamber, a first piston also delimiting said first combustion chamber and with a first piston head, a first crankshaft, a second piston also delimiting said f... | 08/26/2008 |
| 7341041 | Toroidal engine with variable displacement volume A novel rotary engine of the kind having a toroidal cylinder and a set of pistons on a rotating circular piston assembly provides instantaneous adjustment of the displacement volume of the engine by varying the intake and expansion stroke length on the circular path... | 03/11/2008 |
| 7328672 | Radial impulse engine, pump, and compressor systems, and associated methods of operation Radial impulse engine, pump, and compressor systems are disclosed herein. In one embodiment of the invention, an engine includes a first end wall portion spaced apart from a second end wall portion to at least partially define a combustion chamber therebetween. In t... | 02/12/2008 |
| 7325517 | Radial impulse engine, pump, and compressor systems, and associated methods of operation Radial impulse engine, pump, and compressor systems are disclosed herein. In one embodiment of the invention, an engine includes a first end wall portion spaced apart from a second end wall portion to at least partially define a combustion chamber therebetween. In t... | 02/05/2008 |
| 7305937 | Rotary toroidal machine with piston connecting mechanism A rotary machine includes a housing divided into a first stationary portion and a second rotational portion. The second rotational portion is supported for rotation with respect to the stationary portion about an axis of the housing. The first and second portions of... | 12/11/2007 |
| 7284373 | Thermodynamic cycle engine with bi-directional regenerators and elliptical gear train and method thereof A thermodynamic cycle heat engine comprising a regenerator housing with two bi-directional regenerators, compression and expansion chambers connected to different ends of the housing, and a gear train. Each of the bi-directional regenerators comprises a low pressure... | 10/23/2007 |
| 7258082 | Oscillating-piston machine An oscillating-piston machine comprises a housing, in which a first and at least a second piston are arranged, which pistons can together revolve in the housing about an axis of rotation that is fixed with respect to the housing, and which pistons, as they revolve a... | 08/21/2007 |
| 7254948 | Boost wastegate device for EGR assist An apparatus and method for controlling exhaust gas recirculation flow. The apparatus and method uses a pressure-bleeding device, such as a wastegate valve, to change the pressure in an internal combustion engine in order to alter the flow rate of the exhaust gas th... | 08/14/2007 |
| 7255086 | Rotary internal combustion engine The invention can be used for transport means, sports cars and power plants. The inventive engine comprises a hollow toroidal working cylinder provided with a continuous circular slot embodied along the small diameter thereof, a nozzle or a spark plug and arc-wise e... | 08/14/2007 |
| 7222601 | Rotary valveless internal combustion engine A rotatably alternating air or water cooled two-stroke internal combustion engine comprising a cylindrical casing, and a rotor comprising two radially extending vanes affixed to a shaft rotatably mounted within the casing upon two end plates. Two longitudinally exte... | 05/29/2007 |
| 7188602 | Concentric internal combustion rotary engine An internal combustion rotary engine includes a housing having an inlet and an outlet and a rotatable rotor centrally mounted within the housing. The rotor includes a plurality of pockets located about its circumference, the rotor further being connected to a rotor ... | 03/13/2007 |
| 7185625 | Rotary piston power system The rotary piston power system includes a housing having a drum and a cover rotatably mounted on the drum. The drum has high pressure and low pressure ports defined in its peripheral wall and a central separator wall having arcuate end faces and a pair of semicylind... | 03/06/2007 |
| 7182061 | Rotary internal combustion engine A rotary internal combustion engine comprising at least one but preferably a plurality of two operating chambers each having a toroidal path of travel on an interior thereof and an interactive piston assembly comprising a pair of first or driven pistons connected to... | 02/27/2007 |
| 7156068 | Rotary combustion engine The aim of the invention is to dispense with the disadvantages of previous engines either fully or partially. This is achieved by two cylindrical parts which rotate into each other, respectively possessing a wing and which can rotate about an axis of different speed... | 01/02/2007 |
| 7069804 | Gear linkage device with real time check A gear linkage device with real time check. The gear linkage device with real time check includes a first gear link and a second gear link. The first gear link includes a flange provided with a notch and a plurality of first toothed portions on the lateral surface t... | 07/04/2006 |
| 7032565 | Rotary combustion engine with lateral thrust between opposing and engaging combustion flywheels A modular revolving cylinder engine including at least two interdependent flywheels driven in rotation by a driving device (1) that rotates them in synchronization and in opposite directions. Each flywheel includes a plurality of equally spaced hollow pushrod... | 04/25/2006 |
| 6991441 | Expansible chamber device having rotating piston braking and rotating piston synchronizing systems An expansible chamber device includes a braking system with a set of cam surfaces on the piston assemblies and a set of movable members adapted to alternately engage first and second sets of cam surfaces to stop the rotation of first piston assembly while permitting... | 01/31/2006 |
| 6988482 | Dual rotor internal combustion engine An engine including a housing formed with a pair of side-by-side intersecting substantially cylindrical cavities, and a pair of counter-rotating power rotors rotatably mounted within the cavities. The pair of power rotors include intermeshing lobes that each define ... | 01/24/2006 |
| 6978758 | High Efficiency rotary piston combustion engine A computer controlled rotary piston engine includes a blower housing containing a rotatable impeller assembly, for pushing ambient air into the housing, and forcing the air to pass through a normally open valve mechanism into a combustion chamber. A plurality of fue... | 12/27/2005 |
| 6962137 | Two-cycle rotary engines Two-cycle, single vane impeller, hinged hub rotary engines are simple embodiments of a new class of engines. The 2-cycle, hinged hub rotary engines have dependently rotating impellers with, interdigitated, alternating hub sections, a hinge like rotation joint. These... | 11/08/2005 |
| 6948473 | 4-cycle, rotary, electromagnetic, internal combustion engines Four-cycle rotary engines, with an even number of hinged-hub impeller vanes, utilize dependently rotating, joined, hinged-hub impellers, with interdigitated, alternating hub sections, on a shared, power output shaft, and electromagnetic fields, and timing of impelle... | 09/27/2005 |
| 6895923 | Rotary and centrifugal driven internal combustion engine A rotary engine assembly having a three dimensional and substantially cylindrical shaped outer casing. A plurality of pistons are mounted in circumferentially traversable fashion within the casing, each including a male feature extending from one end and a recess de... | 05/24/2005 |
| 6886527 | Rotary vane motor A rotary vane motor uses a gear train arrangement for controlling the position of the vanes as well as the compression ratio of the motor. The motor includes a first pair of vanes namely a leading and trailing vane defining a working chamber therebetween and an oppo... | 05/03/2005 |
| 6880494 | Toroidal internal combustion engine Toroidal internal combustion engine comprising two concentric engine rings. Intake valves are assembled in two faces of one set of pistons and exhaust valves in two faces of the second set of pistons. The intake-valve pistons are fixedly attached to one of the engin... | 04/19/2005 |
| 6739307 | Internal combustion engine and method Internal combustion engine and method in which pistons on different rotors move relative to each other to form chambers of variable volume in a toroidal cylinder. The pistons move in stepwise fashion, with the pistons on one rotor travelling a predetermined distance... | 05/25/2004 |
| 6691647 | Engine and drive system The engine comprises four open-ended curved cylinders (10) disposed in torroidal arrangement with respect to a central pivot point (11). Two piston arms (12) are pivoted about the point (11) and carry at their ends four pistons (13). Each piston (13) has ... | 02/17/2004 |
| 6668787 | Internal combustion engine There is provided an internal combustion engine (10) having a housing (11,12,13) and a rotor arrangement (21,22,34) which is mounted for oscillating rotary movement within the housing. The housing provides at least one compression chamber (14) and at leas... | 12/30/2003 |
| 6457451 | Rotary piston engine A rotary piston engine (20) is shown that includes a housing (22) having a toroidal working chamber with inlet (56) and exhaust (54) ports. First and second piston assemblies (30 and 32), each of which includes at least one pair of diametrically opposed p... | 10/01/2002 |
| 6457452 | Mechanism for interconnecting first-and second-shafts of variable speed rotation to a third shaft A rotary piston engine (20) is shown that includes a housing (22) having a toroidal working chamber with inlet (56) and exhaust (54) ports. First and second piston assemblies (30 and 32), each of which includes at least one pair of diametrically opposed p... | 10/01/2002 |
