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| Number | Title | Issue Date |
| 7066115 | Internal combustion engine/hydraulic motor/fluid pump provided with opposite pistons An internal combustion engine has a pair of opposed pistons held within an elliptical guide of the engine housing. The pistons reciprocate within a cylinder attached to a shaft. A combustion chamber is formed within the shaft and positioned to be between the pistons... | 06/27/2006 |
| 6928965 | Reciprocating piston engine comprising a rotative cylinder A reciprocating piston engine includes a rotor housing for transferring torque to an engine output drive; a contoured guide element in the rotor housing, having a closed, curvilinearly contoured shape, around which the rotor housing is rotatable; at least one compre... | 08/16/2005 |
| 6431139 | Oscillating-piston engine An oscillating-piston engine, comprising a housing, in which several pistons configured as two-armed levers are arranged pivotably, respectively, around a pivot axis being parallel to a central housing axis and moving commonly in a revolution direction. T... | 08/13/2002 |
| 6253717 | Rotary engine A rotary internal combustion engine which has a rotating drum supported in a stationary housing is disclosed. The rotating drum has one bank of cylinders for taking in and compressing the fuel/air mixture and another bank of cylinders for generating power... | 07/03/2001 |
| 6230670 | Engine generator A mechanical fuel cell, in which a novel two cycle type, six cylinder, twin cam, internal combustion rotary engine, operable generally at constant speed, drives a plurality of magnets over a stationary wire coil to generate electrical energy.... | 05/15/2001 |
| 6167850 | Rotary combustion engine with pistons This invention relates to an apparatus for producing a rotary motion force by means of an internal combustion engine, rotary type with pistons in the circular rotor, consisting of a housing, a rotor with cylinder chambers containing pistons that is connec... | 01/02/2001 |
| 6119639 | Power machine cooling The present invention is for cooling combustion engines of the kind in which two pistons are working against each other in a common cylinder bore and having a common combustion space. The invention is for a liquid cooling of such a power machine, preferab... | 09/19/2000 |
| 6016737 | Transmission The present invention is for a means for transmission of force whereby linear movement is transferred into rotating movement or reverse. The invention is primarily intended to be used by combustion engines. The invention is for a means to transmit force b... | 01/25/2000 |
| 5954017 | Engine having a rotary block In a preferred embodiment, an engine, including: a housing having a cylindrical inner surface; a first circular block rotatably disposed within the housing and coaxial therewith, the first circular block having its outer surface circumjacent the inner sur... | 09/21/1999 |
| 5671702 | Valve system in a rotary radial-piston engine On the rotary drive shaft (10) of a four-stroke engine is non-rotationally mounted a hub (11) supporting four cylinders (14) wherein pistons (16) are arranged for reciprocal movement radially towards the hub. The hub (11) is provided with a combustion cha... | 09/30/1997 |
| 5419288 | Spherical piston radial action engine A rotary internal combustion engine comprising a housing containing a rotatable cylinder having a circular wall containing at least two rows of radially extending circular passageways forming compression and power engine cylinders, respectively, displaced... | 05/30/1995 |
| 5357911 | Four-stroke radial-piston engine On the rotary drive shaft of a four stroke engine is non-rotationally mounted a hub supporting four cylinders wherein pistons are arranged for reciprocal movement radially towards the hub. The hub is providing with a combustion chamber having common inlet... | 10/25/1994 |
| 5257599 | External-internal rotary combustion engine An internal combustion engine in which various engine functions are carried out simultaneously rather than sequentially with the result that engine operation is smoother, less subject to vibrational forces, and has greater efficiency due to the eliminatio... | 11/02/1993 |
| 5211138 | Rotary internal combustion engine A rotary internal combustion engine wherein the cylinders making up the engine block are radially disposed in a common plane and rotate with the output shaft. The engine block rotates within a surrounding cam surface and the pistons in each cylinder move ... | 05/18/1993 |
| 5090372 | Rotary internal combustion engine A rotary internal combustion engine wherein the cylinders making up the engine block are radially disposed in a common plane and rotate with the output shaft. The engine block rotates within a surrounding cam surface and the pistons in each cylinder move ... | 02/25/1992 |
| 5080050 | Rotary engine A rotary internal combustion engine having spherical pistons mounted in radially arranged cylinders formed in a stacked series of rotatable cylindrical members. A stationary cam surface is located around the rotatable member to maintain contact with the p... | 01/14/1992 |
| 4974553 | Rotary internal combustion engine A rotary internal combustion engine wherein the cylinders making up the engine block are radially disposed in a common plane and rotate with the output shaft. The engine block rotates within a surrounding cam surface and the pistons in each cylinder move ... | 12/04/1990 |
| 4653438 | Rotary engine A four cycle internal combustion, rotary engine is disclosed in which a cylindrical rotor having plural arcuately spaced, radially extending, piston carrying cylinders is mounted about a coaxially aligned central combustion chamber and main bearing for ro... | 03/31/1987 |
| 4408577 | Rotary engine Disclosed are apparatus for a two cylinder rotary internal combustion engine comprising a stationary cylinder block with a pair of inwardly facing horizontally opposed pistons operating within. Each piston is maintained in fixed relationship to the other ... | 10/11/1983 |
| 4401062 | Rotary piston engine A rotor containing plural circumferentially spaced radial cylinders revolves in a concentric stationary housing around a fixed but adjustable profiled cam engaged by follower rollers on the connecting rods of pistons which reciprocate in the cylinders due... | 08/30/1983 |
| 4381740 | Reciprocating engine A reciprocating piston engine is provided with cyclinders arranged radially about a rotatable drive shaft and a separate piston adapted to reciprocate in each cylinder. Each piston is held in contact with a cam mounted on the shaft by means of linkages an... | 05/03/1983 |
| 4336686 | Constant volume, continuous external combustion rotary engine with piston compressor and expander Constant volume, continuous external combustion rotary engine which incorporates at least one radial piston compressor, at least one continuous-combustion chamber, at least one radial piston expander together with a means to supply fuel to the combustion ... | 06/29/1982 |
| 4334506 | Reciprocating rotary engine Rotary engine having a hollow, stationary block with manifolds for air inlet and exhaust valving and means for supplying fuel. The block supports one or more in-line cylinders which are provided with opposed pistons equipped with rigid and constrained pis... | 06/15/1982 |
| 4300487 | Rotary engine A lightweight rotary engine of novel design having a sealed inner portion that allows the engine to assume any attitude during operation. The bottommost portion of each piston contains a bearing roller that is urged against a fixed eccentric post which ca... | 11/17/1981 |
| 4077267 | Fluid transducer A fluid transducer including a reciprocatory piston member and a drive mechanism for converting reciprocation of the piston member into rotation of a rotary member coupled to the mechanism, or vice versa. The drive mechanism includes a first elliptical me... | 03/07/1978 |
| 4038953 | Rotary internal combustion engine having rotary valve means for fuel and air introduction A rotary internal combustion engine comprising an engine frame having a rotor rotatably mounted therein which has a plurality of radially spaced cylinders mounted thereon. The free floating piston is slidably mounted in each of the cylinders with the head... | 08/02/1977 |
| 4038949 | Rotary-radial internal combustion engine A rotary-radial internal combustion engine wherein a piston-containing cylinder housing and cam means are mounted in an engine housing for relative rotary motion with respect to each other; said cylinder housing including diametrically opposite combustion... | 08/02/1977 |
| 4023536 | Method of controlling the timing of ignition in an internal combustion engine A method of controlling the timing of ignition in an internal combustion engine comprising cylinders and reciprocating pistons and having a supply of fuel and air to the cylinders by determining the conditions of temperature and/or pressure within at leas... | 05/17/1977 |
| 4003351 | Rotary engine Disclosed is a short stroke, rapid fire, continuous power rotary engine which can be affixed to the body of a vehicle or other stationary position, depending upon its intended use. The engine includes a housing within which is a rotating block which house... | 01/18/1977 |
| 3971259 | Fluid transducer A fluid transducer including a reciprocatory piston member and a rotary member, and a drive mechanism for converting reciprocation of the piston member into rotation of said rotary member, or vice versa. The drive mechanism includes a first elliptical mem... | 07/27/1976 |
| 3967599 | Rotary internal combustion engine and method of cooling the same A rotary internal combustion engine is disclosed and generally comprises a rotor means which is rotatably mounted on a stationary core mounted in an engine frame. The rotor means has a plurality of cylinders spaced radially thereon. A free floating piston... | 07/06/1976 |
| 3931810 | Rotary-piston internal combustion engine A rotary-piston internal combustion engine having one or any number of rotary pistons, mounted in a cylindrical cylinder block, the cylinder block being mounted for rotation in an elliptical casing, on a central hub associated with said casing. A central ... | 01/13/1976 |
