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| Number | Title | Issue Date |
| 6736090 | Valve device of engine An engine valve device, wherein an opening part (7) smaller in area than the end surface of a piston (5) is provided in the end surface of a cylinder (3) to form a valve seat (8), and a valve disc (9) in contact with the valve seat... | 05/18/2004 |
| 5367989 | Valve shutter control A valve system for controlling the opening and closing of the intake and exhaust ports of the internal combustion engine's cylinders consists of a shutter valve assembly which opens and closes a row of openings registering with the engine's combustion cha... | 11/29/1994 |
| 5183014 | Sleeve valve system for internal combustion engine having elliptical path An improved internal combustion engine, particularly of the compression ignition, two cycle, aircraft type employing sleeve valves and a modular cylinder and removable cylinder head and retainer. The engine is turbocharged with the turbocharger separated ... | 02/02/1993 |
| 4838214 | Internal combustion engine assembly An internal combustion engine having a sleeve valve wherein the sleeve valve is the cylinder sleeve of a respective cylinder whereby a very simple reciprocation and oscillation of the sleeve valve may be effected by means of a rotary valve which controls ... | 06/13/1989 |
| 4663938 | Adiabatic positive displacement machinery Adiabatic positive displacement gas cycle machinery is designed with explicit control of the heat flow between the gas and the walls. The control is achieved by maintaining near-laminar flow and a small wall area to volume ratio. The most stable near-lami... | 05/12/1987 |
| 4487172 | Sleeve valve internal combustion engine A single-sleeve valve engine has narrow quasi-elliptic sleeve motion which improves exhaust and intake valving and permits the conversion of standard engine blocks. The sleeve is thick walled, and is molded of low density material which permits significan... | 12/11/1984 |
| 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 |
| 4121422 | Power plant An internal combustion two stroke engine is provided having at least one cylinder within which a piston reciprocates. The engine is joined to a gear box which includes a ring gear. A pair of gears having diameters half that of the ring gear move within th... | 10/24/1978 |
