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| Number | Title | Issue Date |
| 7073471 | Apparatus and method for improving engine performance A spark plug adapter allows for installation into the cylinder head of an internal combustion engine of an improved high-performance spark plug of configuration considerably different from that which the cylinder head was manufactured to accept. This is accomplished... | 07/11/2006 |
| 6006711 | Spark plug function incorporated engine valve and valve mechanism A spark plug and an engine valve member are integrally combined in the same structure by forming an ignition gap between a first electrode rod which is the center electrode incorporated in an engine valve body and a second electrode portion which is the g... | 12/28/1999 |
| 5363651 | Free piston internal combustion engine An improved internal combustion engine is disclosed having no rotating crank shaft. Each piston rod of the engine is connected to a hydraulic piston and cylinder the output of which drives the rotating output shaft of a hydraulic motor. A take off from th... | 11/15/1994 |
| 5050571 | Diesel fuel conversion means for spark-ignition engines The purpose of this patent is to permit the use of diesel fuel for spark-ignition engines, whatever the type, e.g. two- or four-stroke piston engines (Rochas-Otto cycle); rotary (all types, including Wankel) by spraying diesel fuel onto a hot exhaust mani... | 09/24/1991 |
| 4111178 | Ignition system for use with fuel injected-spark ignited internal combustion engines The valve seat and cooperating movable valve member of each fuel injector of an associated fuel injected-spark ignited internal combustion engine are connected in series with a resistor across a direct current potential source. The valve seat and movable ... | 09/05/1978 |
| 4066059 | Fuel injection nozzle valve and ignition system A nozzle valve of the type for fuel injection in an internal combustion engine. It has a needle and a valve seat adjacent to one end of the needle, plus a spring to bias the needle against the seat. It also has means for lifting the needle off the seat wh... | 01/03/1978 |
