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| Number | Title | Issue Date |
| 6951193 | Film-cooled internal combustion engine This invention provides a film-cooled internal combustion engine in which a film of gas is applied to interior surfaces of the engine to reduce heat transfer to the metal components of the engine from hot combustion gases to cause more work to be extracted from thos... | 10/04/2005 |
| 5960860 | Water temperature control device in cooling system of water cooling type engine This invention relates to a water temperature control device for a cooling system having a reduced number of parts. The water temperature control device circulates cooling water to a water pump through either a radiator or a bypass line depending on the t... | 10/05/1999 |
| 4083331 | Internally cooled rotary exhaust valve An improved water cooled exhaust valve structure is disclosed for a rotary valve engine. The exhaust gases from an engine combustion chamber enter a side port in a rotary exhaust valve and flow axially through the valve to an exhaust outlet. Cooling water... | 04/11/1978 |
| 4023349 | Valve arrangements for reciprocating piston machines A pneumatically actuated valve for controlling the flow of fluid from an inlet passage to the cylinder of a reciprocating piston machine wherein the valve is opened by the fluid pressure in the cylinder as the piston approaches top dead center and closed ... | 05/17/1977 |
| 3945356 | Cooled exhaust valve and methods of manufacture thereof Exhaust valve for an internal combustion engine, of the type cooled by fluid circulation and comprising a valve head and a stem screwed into the said head. Said exhaust valve comprises intake and return ducts for the cooling liquid, which are parallel and... | 03/23/1976 |
