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| Number | Title | Issue Date |
| 7124719 | Two-way cylinder engine An internal combustion engine wherein each cylinder has two pistons placed in the opposite direction and attached together by an arm-type connecting rod and wherein a cylinder head has a rotor blade rotating in the middle between the upper cylinder head and the lowe... | 10/24/2006 |
| 6513475 | Rotary valve internal combustion engine An engine comprises an engine block having at least one combustion chamber and a rotary valve rotatably mounted on top of the engine block. The rotary valve includes an intake passage for diverting air into the combustion chamber and an exhaust passage fo... | 02/04/2003 |
| 6155215 | Rotary valve internal combustion engine An internal combustion engine includes an engine block having one or more cylinders and a rotary disk valve mounted on top of the engine block. The rotary disk valve includes an intake passage for directing intake air into the cylinders and an exhaust pas... | 12/05/2000 |
| 5816203 | Rotary valve internal combustion engine A rotary valve engine includes an engine block having at least one combustion chamber which is sealed by a rotary valve which also can function as a head. The rotary valve includes an intake passage and an exhaust passage for directing intake air into the... | 10/06/1998 |
| 5579734 | Rotary valve internal combustion engine A rotary valve engine includes an engine block having at least one combustion chamber which is sealed by a rotary valve which also can function as a head. The rotary valve includes an intake passage and an exhaust passage for directing intake air into the... | 12/03/1996 |
| 5103778 | Rotary cylinder head for barrel type engine Disclosed is a rotating cylinder head for use on a barrel type engine. The cylinder head rotates about the central axis of the engine driven by the main drive shaft. The cylinder head contains an intake port and exhaust port. As the cylinder head rotates,... | 04/14/1992 |
| 4455976 | Internal combustion engines A four cycle internal combustion engine in which cylinders are arranged in pairs. The pistons in each pair of pistons are arranged to operate in tandem. A U shaped arm which is arranged to turn around a center is connected through one set of linkages to a... | 06/26/1984 |
| 4149498 | Internal combustion engine An internal combustion engine is provided that has a stationary cylinder block in which cylinders contain reciprocating pistons that are sequentially actuated to impart torque to a revolving rotor. A unique rotor is provided that includes a cam surface th... | 04/17/1979 |
| 4149493 | Multi-cylinder internal combustion engine A method of operating an internal combustion engine having one or a plurality of cylinders with piston means movable therein wherein a controlled quantity of compressed air is introduced into the combustion chamber when the piston is substantially in its ... | 04/17/1979 |
| 4079706 | Two-stroke internal combustion engine An internal combustion engine has at least three cylinders and induction conduits opening into the lower portion of the cylinders or into the crankcase. The induction conduits are intended at least for combustion air, comprising at least one rotary disc v... | 03/21/1978 |
