Fast idle device for carburetor

Details Fast idle device for carburetor Fast idle device for carburetor

F - Mech Eng,Light,Heat,Weapons

02

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F02M 1/10 (2006.01) F02D 41/08 (2006.01) F02M 3/07 (2006.01)

Patent

CA 1140009

ABSTRACT OF THE DISCLOSURE A fast idle device for a carburetor such that an optimum throttle valve opening (idle opening) is calculated through a calculating circuit based on various engine operating conditions, after the engine is started, and is controlled repeatedly, until the engine is fully warmed up, in such a way that the throttle valve movement urged by a return spring in the direction to close the valve is released steppedly by a ratchet mechanism. The fast idle device of the present invention comprises various sensors, a calculating circuit, and an electromagnetic ratchet mechanism, in addition to a conventional throttle valve.

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