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| Number | Title | Issue Date |
| 7500461 | Rotary combustion engine, designed for diesel fuel A rotary combustion engine includes a peripheral housing, side housing plates, a piston, and an eccentric shaft, where the triangular piston mounted on the eccentric shaft rotates between the side plates around an epitrochoidal orbit with a long and short axis insid... | 03/10/2009 |
| 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 |
| 7318553 | Apparatus and method for heating fluids An apparatus for heating a liquid includes a housing having an internal chamber and a rotor disposed in the chamber. The rotor is preferably cylindrical and operates inside a bore provided by the housing without touching, the shape of the bore preferably being paral... | 01/15/2008 |
| 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 |
| 7051947 | Heat generator for a motor vehicle A heat generator for a motor vehicle comprises a rotor (1), a stator (13) in which the rotor (1) induces by rotation electrical currents that generate heat in the stator (13), and a coolant duct (16) adjacent to the stator (13 | 05/30/2006 |
| 7019626 | Multi-fuel engine conversion system and method Systems, methods and apparatus' of converting an engine into a multi-fuel engine are provided. One embodiment reduces particulate emissions and reduces the amount of combusted gasoline or diesel fuel by replacing some of the fuel with a second fuel, such as natural ... | 03/28/2006 |
| 7013864 | Fuel injector In a fuel injector for a direct-injection internal combustion engine comprising an injection nozzle, on the circumference of which a plurality of injection orifices are arranged so as to line up with one another, to form an orifice arrangement for the formation of a... | 03/21/2006 |
| 7004120 | Opposed piston engine A four-stroke opposed piston engine includes a rotating cylinder with a circumference and an aperture defined through the circumference, first and second opposing pistons, optional first and second opposing cylindrical spacers, first and second opposing piston caps,... | 02/28/2006 |
| 6892692 | Rotary piston engine and method of operation The present invention relates to a design and method of operation of an improved rotary piston engine. In particular, a preferred embodiment of the present invention is directed to a rotary engine with improved reliability, comprising a housing, having side portions... | 05/17/2005 |
| 6317666 | Method for analyzing the driveability of motor vehicles This invention relates to a procedure for analyzing and influencing the driveability of motor vehicles, including the following steps: Conducting tests on a real vehicle to obtain measurement variables describing its driveability; Continuous monitoring to chec... | 11/13/2001 |
| 6197835 | Device and method for creating spherical particles of uniform size Spherical particles having a size on the order of 0.1 to 100 microns in size are created by systems and devices of several types. The device includes a source of a stream of gas which is forced through a liquid held under pressure in a pressure chamber wi... | 03/06/2001 |
| 5789877 | Power transmitting apparatus and method of controlling the same A power transmitting apparatus (20) attached to a crankshaft (56) of an engine (50) includes a clutch motor (30), an assist motor (40), and a controller (80) for controlling the clutch motor (30) and the assist motor (40). When detecting an ignition switc... | 08/04/1998 |
| 5722361 | Internal combustion engine with pistons that rotate about a center line An internal combustion engine with rotating pistons works on the basis of the cat and mouse principle. The charge is axially exchanged over one of the housing lids (28) and the adjacent rotary side disk (24). The combustion chambers (34) are formed by axi... | 03/03/1998 |
| 5555866 | Rotary engine A rotary internal combustion engine has a double pivot center and allows for efficient communication between a central cylindrical intake/compression chamber and a crescent-shaped expansion chamber. Power packs rotating about the upper pivot location rece... | 09/17/1996 |
| 5305721 | Rotary Wankel type engine A rotary Wankel type engine system is disclosed, wherein the crankshaft is supported by a center main roller bearing. The rotor apexes are sealed by two piece apex seals and by side seals. The engine system further includes an oiling system which permits ... | 04/26/1994 |
| 5203307 | Rotary wankel type engine A rotary Wankel type engine system is disclosed, wherein the crankshaft is supported by a center main roller bearing. The rotor apexes are sealed by two piece apex seals and by side seals. The engine system further includes an oiling system which permits ... | 04/20/1993 |
| 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 |
| 5123387 | Rotary engine with inserts in rotor faces A rotary engine includes a rotor with a plurality of working surfaces. Each working surface of the rotor includes a recess covered by an insulating plate. A ledge is formed within and part way around a periphery of the recess and across one end of each re... | 06/23/1992 |
| 5094204 | Stratified charge injection for gas-fueled rotary engines A gaseous fuel injector injects fuel directly into a working chamber of a rotary combustion engine after the end of the air intake stroke and early during the compression stroke for providing fuel-charge stratification within the working chamber as the ro... | 03/10/1992 |
| 5022366 | Rotary engine with dual spark plugs and fuel injectors A stratified charge rotary combustion engine includes a main fuel injector, a pair of spark plugs and a piot fuel injector. The first spark plug is located upstream of the pilot fuel injector. The second spark plug is located upstream of the main fuel inj... | 06/11/1991 |
| 4793304 | Arrangement for cooling the piston of a rotary piston internal combustion engine In a mixed cooling system for the piston of a rotary-piston internal combustion engine having a trochoid construction with a triangular piston and a liner surface in the form of a double arc of a circle, a fuel injector is arranged in a side-wall of the l... | 12/27/1988 |
| 4759325 | Rotary engine cooling system A rotary internal combustion engine has a rotor housing with drilled coolant passages extending generally axially therethrough, a thin wear-resistant liner lines the inner trochoid surface of the rotor housing. A ceramic insert may be used to insulate a t... | 07/26/1988 |
| 4688522 | Fluid power transfer device and fuel system therefor A fluid power transfer device includes a pair of rotors and vanes mounted for rotation in a hollow housing having an equatorial plane wherein conical faces of the rotors rollingly engage each other to form a line contact and wherein a hinge pin which hing... | 08/25/1987 |
| 4203410 | Method for operating a rotary engine A rotary engine has a housing and a pair of spaced, coaxial rotors in the housing connected for joint movement. Each rotor rotates in a separate rotor chamber, and each carries radially movable vanes, the outer edges of which engage the configured inner s... | 05/20/1980 |
| 4187825 | Pilot fuel ignited stratified charge rotary combustion engine and fuel injector therefor For a pilot fuel ignited stratified charge rotary, internal combustion engine, the fuel injection system and a fuel injector therefor comprises a fuel injector having plural discharge ports with at least one of the discharge ports located to emit a "pilot... | 02/12/1980 |
| 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 |
| 4137890 | Toroid sweep engine The Toroid Sweep Engine with Reciprocating Jut generates power within a toroidal-shaped chamber whose walls are divided into two ring-like sections which are free to rotate relative to one another around the toroid axis. An obstacle juts from each of the ... | 02/06/1979 |
| 4136661 | Rotary engine A rotary engine is disclosed having a plurality of rotor blades spaced around an annular chamber and dividing the chamber into separate engine chambers. The rotor blades drive two output shafts which are coupled by a transmission means to provide a single... | 01/30/1979 |
| 4122669 | Single stage or multi-stage expansion engine An expansion engine having a cylinder with a piston and a head provided with a housing in which the housing is subdivided by a partition into a first chamber and a second chamber. The first chamber is in open communication with the cylinder by means of an... | 10/31/1978 |
| 4106472 | Rotary energy converter with respiring chambers A rotary energy converter has a rotor provided with a plurality of hinged vanes and centrally mounted within a stator having a generally circular inner wall surface formed with one or more vaulted bays and corresponding abutments. As the rotor rotates wit... | 08/15/1978 |
| 4100911 | Rotary piston internal combustion engine A rotary piston internal combustion engine of trochoidal construction with spark ignition and fuel injection, comprises a housing made up of a peripheral wall portion with a two-lobed inner surface having first and second nodes on its minor axis, and two ... | 07/18/1978 |
| 4091789 | Stratified charge fuel injection system for rotary engine The improved stratified charge fuel injection system for a rotary engine has a fuel nozzle for injecting fuel into each engine working chamber coacting with an igniter at a common recess opening into the engine working chambers to ignite the fuel discharg... | 05/30/1978 |
| 4085712 | Rotary engine with pilot and main fuel nozzles downstream of top center A rotary combustion engine having two fuel injection nozzles, both mounted in the rotor housing on the downstream side of a trochoid lobe junction in the region in which combustion takes place, with both nozzles discharging in a generally upstream directi... | 04/25/1978 |
| 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 |
| 4080934 | Rotary engine with inserts in rotor faces A rotary combustion engine in which at least a portion of each of the rotor working surfaces is covered by an insert to raise the operating temperatures of said surfaces.... | 03/28/1978 |
| 4080935 | Rotary internal combustion engine An internal combustion engine of the rotary type comprises a housing or block provided with a cavity which is cylindrical in one portion and enlarged in another; the side walls of the cavity are flat. A drive shaft is rotatably mounted in the housing for ... | 03/28/1978 |
| 4072132 | Rotary internal combustion engine Presented is a rotary internal combustion engine that utilizes autoignition of fuel and water injection into the combustion chamber for greater efficiency and reduction of pollutants.... | 02/07/1978 |
| 4070995 | Rotary engine with combustion gas flow-back for diesel operation A rotary engine in which the engine is provided with leakage grooves in its trochoid surface so that high pressure combustion gases from a working chamber in its expansion phase can flow back into a chamber at an initial portion of its compression phase s... | 01/31/1978 |
| 4066044 | Rotary engine with tongue and groove inserts in rotor faces A rotary combustion engine in which at least a portion of each of the rotor working surfaces is covered by an insert to raise the operating temperatures of said surfaces, the insert being secured to the rotor by a tongue and groove fit.... | 01/03/1978 |
