Hydromechanical shutoff for an internal combustion engine

Details Hydromechanical shutoff for an internal combustion engine Hydromechanical shutoff for an internal combustion engine

F - Mech Eng,Light,Heat,Weapons

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F02B 77/08 (2006.01) F01M 1/24 (2006.01) F01P 11/16 (2006.01) F02D 17/04 (2006.01) F02B 3/06 (2006.01)

Patent

CA 1082542

HYDROMECHANICAL SHUTOFF FOR AN INTERNAL COMBUSTION ENGINE Abstract of the Disclosure An engine shutoff device is provided to terminate either fuel supply, air supply, or both when the engine exceeds certain predeter- mined operating limits of the engine including when the engine is idling. The device includes a self-contained fluid pump, a speed- responsive valve spool, and a series of pilot operated valves which, with appropriate passages, form a series of fluid circuits. Engine lubricating oil is pressurized by the self-contained fluid pump and is passed through the series of circuits. Appropriate pressure and temperature sensing devices along with a speed sensing device are operable upon variation of pressure, temperature, or speed in the various circuits to actuate fuel shutoff or air shutoff as required.

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