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| Number | Title | Issue Date |
| 7350500 | Inverted cardioid 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 pa... | 04/01/2008 |
| 7281513 | Inverted Wankel 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 pa... | 10/16/2007 |
| 6125813 | Prechamber combustion for a rotary diesel engine A fuel injection, ignition, and combustion system for use in a rotary internal combustion engine of the diesel type and method of power extraction is provided. The fuel combustion system includes a rotary engine with a prechamber disposed in a top center ... | 10/03/2000 |
| 5685269 | High speed rotary engine and ignition system A rotary engine in which two rotors having interleaving radial vanes move with cyclic rotary motion superposed on uniform rotary motion inside a cylindrical cavity in a cooled engine housing. The rotor vanes divide the cylindrical cavity into four compart... | 11/11/1997 |
| 5520147 | Rotary motor or engine having a rotational gate valve An engine block mounts one or more rotors 16 within cylindrical rotor bores that are partially overlapped by cylindrical gate valve bores. A rotary gate valve is mounted within the gate valve bore and partially overlaps the rotating rotor. Angularly space... | 05/28/1996 |
| 5083539 | Concentric rotary vane machine with elliptical gears controlling vane movement In the concentric rotary pressure fluid machine which can either be an engine, motor, pump or compressor, the four identical elliptical gears (54, 54, 100, 100) actuate the relative rotary motions of two identical and coaxial rotors (60, 60') characterize... | 01/28/1992 |
| 4660517 | Vibration detecting apparatus for multi-rotor rotary piston engines A vibration detecting apparatus including a vibration detector for detecting engine vibrations in a multi-rotor rotary piston engine. The vibration detector is disposed on an intermediate housing, on both sides of which working chambers of the multi-rotor... | 04/28/1987 |
| 4219003 | Ignition means for rotary piston engines Ignition plug for a rotary piston engine comprises a central electrode, an insulator disposed around the central electrode and having an end surface which defines a creeping discharge surface, and an outer electrode provided on an outer conductor. The out... | 08/26/1980 |
| 4212283 | Rotary engine An ignition plug is housed in a plug channel the cross-section of which reduces towards the end of the channel remote from the plug, and which terminates in an opening which is narrower in the direction of engine rotation. Burning efficiency is thereby en... | 07/15/1980 |
| 4202312 | Ignition device for rotary piston engine An ignition device for a rotary piston engine includes a glow plug which is mounted at an ignition port formed in an engine housing to communicate with a combustion and operation chamber and which, when electrically powered, is heated to red hot to ignite... | 05/13/1980 |
| 4194486 | Ignition means for rotary piston engines An ignition device for rotary piston engines. The device has an ignition plug disposed in a bore formed in an inner wall surface of a casing of the engine. The plug is of the surface gap and air gap discharge type and has a discharge end constituted by in... | 03/25/1980 |
| 4162669 | Ignition system for rotary piston engines An ignition system for rotary piston engine wherein a glow plug mounted in the epitrochoidal housing of the engine is supplied with electric power to maintain the surface temperature of the glow plug within a range from 900° to 1100° C. A control unit f... | 07/31/1979 |
| 4099490 | Method for producing a housing casing for a rotary piston internal combustion engine A method for manufacturing a housing casing for a rotary piston internal combustion engine, especially of trochoidal construction, as well as the housing casing made according to this method, whereby the housing casing consists of light metal whose intern... | 07/11/1978 |
| 4084548 | Rotary piston engine A rotary piston engine has a rotor housing and a rotor disposed therein for planetary rotary motion. The housing and the rotor cooperate to define a plurality of variable volume working chambers each of which is moved along the inner peripheral surfaces o... | 04/18/1978 |
| 4083329 | Rotary engine with a pilot fuel nozzle downstream of top center A rotary engine having a pair of fuel injection nozzles disposed adjacent to and on opposite sides of a lobe junction of the rotor housing in the combustion region and a spark plug is disposed adjacent to the fuel nozzle which is disposed on the downstrea... | 04/11/1978 |
| 4029058 | Stratified charge rotary engine with side housing fuel injection A stratified charge rotary combustion engine having at least two fuel nozzles for discharging fuel into each working chamber after the charge therein has been substantially compressed, the fuel discharging from one nozzle being ignited as it discharges in... | 06/14/1977 |
| 4007714 | Spark plug and rotary engine combination The improved combination of a rotary internal combustion engine and spark plug provides a bore in the engine housing extending from the exterior of the housing into communication with the rotor cavity defined by the housing. The bore has a threaded portio... | 02/15/1977 |
| 3996900 | Revolving piston combustion engine of trochoid type A revolving piston combustion engine of trochoid type includes a housing composed of a shell with a multiarcuate inner surface and parallel ends and in which a polygonal piston is disposed to be eccentrically rotatable. Inlet and outlet passages are arran... | 12/14/1976 |
| 3987758 | Radial piston engine The invention provides an ignition voltage supply system for a rotary piston engine. The engine itself has a housing with gas inlet and outlet openings, a shaft and a rotor eccentrically mounted on the shaft in the housing. The ignition voltage supply sys... | 10/26/1976 |
| 3978824 | Rotary piston internal combustion engine of trochoidal construction A rotary piston internal combustion engine of trochoidal construction which operates with ignition of fuel-air mixture by spark plugs and which is equipped with a polygonal piston, for example, a triangular piston rotatably supported on the eccentric of a... | 09/07/1976 |
| 3970051 | Rotary engine device A rotary engine device, which may be an internal combustion engine or a pump, having a spherical rotor with a radial web rotatable in an oblique chamber, and curved vanes axially slidable through the web, is provided with an outer ring fixed to the outer ... | 07/20/1976 |
| 3964454 | Differential ignition timing firing control system A control system for controlling the ignition of fuel in an internal combustion engine with differential ignition timing comprising a first and a second ignition plug disposed in each combustion chamber of the engine, and a first and a second ignition sys... | 06/22/1976 |
| 3943897 | Ignition system for rotary piston engine An ignition system for a rotary piston engine uses the position of the rotary piston to generate the ignition timing pulse. A sensor is mounted in the wall of the epitrochoidal housing at a point opposite a rotor apex seal when the piston is at the maximu... | 03/16/1976 |
| 3941097 | Rotary combustion engine having improved ignition means The improved ignition means for a rotary combustion engine of the type, having a rotor which planetates within a multi-lobed housing cavity which is partly defined by an inner peripheral wall surface, comprises a spark plug having an axis which extends su... | 03/02/1976 |
| 3938477 | Thrust bearing arrangement for a rotary piston internal combustion engine having a vertical crankshaft Disclosed herein is a rotary internal combustion engine comprising housing means defining, in series, first, second, third and fourth trochoid shaped rotor cavities in aligned relation to each other, a rotatably mounted crankshaft including, in series, fi... | 02/17/1976 |
