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| Number | Title | Issue Date |
| 7398757 | Toroidal engine method and apparatus A rotary motion device having piston valves that define an open region that are adapted to engage a power tooth of the power ring as the power ring rotates around the piston valves and the piston valves rotate about their own separate axis that is fixed with respect... | 07/15/2008 |
| 7341042 | Rotary positive displacement control system and apparatus A rotary positive displacement control system and apparatus includes a transmission assembly, at least a compression assembly and buffer assembly, and an expansion assembly, the buffer assembly disposed between the compression and expansion assembly. The compression... | 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 |
| 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 |
| 6926502 | Combination shield and conduit box cover An apparatus comprising a driven element, a driving element operably coupled to the driven element, and a shield coupled to the driving element such that the shield at least partially covers at least one of the driven element and the driving element. The driven elem... | 08/09/2005 |
| 6922612 | Combustion vibration estimating apparatus, plant and gas turbine plant The combustion vibration estimating apparatus comprises an inputting unit for inputting limiting values of plant data, weather data and internal pressure variation, an internal pressure variation characteristic grasping unit for making internal pressure variation of... | 07/26/2005 |
| 5622149 | High-power rotary engine with varaiable compression ratio A rotary engine having two interdigitated rotors (FIGS. 1a, 1b, or 1c) each of which has two radial vanes dividing a cylindrical cavity in the liquid-cooled rotor housing (11 in FIG. 2) into four chambers. The rotors are coupled to a planetary gear system... | 04/22/1997 |
| 5537973 | Rotary engine with glow ignition system A rotary engine in which two rotors having interleaving radial vanes revolve inside a cylindrical cavity and are connected to a planetary output gear system which causes them to alternately speed up and slow down. The radial vanes divide the cylindrical c... | 07/23/1996 |
| 5524587 | Sliding vane engine A sliding vane engine, where the vanes slide with at least of one of an axial and radial component of vane motion, and where the compression ratio of the engine may be variably controlled. The engine includes a stator and a rotor in relative rotation, and... | 06/11/1996 |
| 5433179 | Rotary engine with variable compression ratio A rotary engine in which two rotors having interleaving radial vanes (3,4,8,9) revolve inside a cylindrical cavity and are connected to a planetary output gear system which causes them to alternately speed up and slow down. An axial shaft (5) attached to ... | 07/18/1995 |
| 5388557 | Combustion engine having a substantially constant temperature and pressure Combustion engine of high efficiency comprising a stator and a rotor, a duct shaped as a closed circle between said stator and rotor, at least one vane sliding in the duct and being fastend to the rotor, wherein the expansion takes place at a substantiall... | 02/14/1995 |
| 5168846 | Rotary engine with variable displacement A rotary engine having an epitrochoidal engine component and a supercharger component connected to the engine component by a variable transmission, the engine component having valve plugs for varying the effective displacement of air compression according... | 12/08/1992 |
| 4949688 | Rotary internal combustion engine An internal combustion engine rotary engine includes four pistons mounted for rotary movement in an annular piston chamber, a drive shaft disposed at an angle of 30° to 80° relative to the piston axis of rotation, and two drive rod assemblies interconne... | 08/21/1990 |
| 4656984 | Rotary internal combustion engine with integrated supercharged fuel-air induction An improved "Wankel-type" rotary engine wherein the same trochoidal cavity employed for effecting a four-phase internal combustion engine operation is also employed to perform a supercharging function in that air is compressed in one chamber (chambers bei... | 04/14/1987 |
| 4620514 | Internal combustion rotary power plant system An internal combustion power plant system provides a rotary engine and a rotary fuel/air mixture compressor for the rotary engine on a common driveshaft, coaxially mounting each end and supported between them by a gearbox which synchronizes operation of v... | 11/04/1986 |
| 4539946 | Method of controlling the combustion cycle in a combustion engine In a combustion engine, the amount of working medium is controlled by allowing the engine to suck in an amount of working medium corresponding to full gas operation, of which a portion is then allowed to flow out again without being compressed, while an a... | 09/10/1985 |
| 4353337 | Rotary engine A rotary internal combustion engine having an elliptical wall member which forms an elliptical internal chamber. A drive shaft is rotatably mounted in the housing and extends transversely through the elliptical chamber. A substantially cylindrical rotor i... | 10/12/1982 |
| 4241713 | Rotary internal combustion engine A rotary internal combustion engine having a housing defining a chamber is disclosed. A fixed shaft extends coaxially through the chamber. A plurality of vanes are pinned to a collar which is rotative about the shaft. One vane is rigidly secured to the co... | 12/30/1980 |
| 4169451 | Rotary piston internal combustion engine and method for influencing its operation A rotary piston internal combustion engine includes a two-curve housing, a triangular piston rotor in the housing and a pressure reservoir connected through a channel to the compression chamber, or volume, formed between the housing and rotary piston. Rot... | 10/02/1979 |
| 4116190 | Trochoidal rotary piston engine with bypass of compressed mixture to exhaust chamber Rotary piston engine comprising a casing and a substantially tri-angular rotor disposed in the trochoidal cavity of the casing. The casing is provided with a take-out port for drawing compressed air from the compressing working and a discharge port locate... | 09/26/1978 |
