Automatic choke

Details Automatic choke Automatic choke

F - Mech Eng,Light,Heat,Weapons

02

M

123/63

F02M 1/10 (2006.01) F02M 1/04 (2006.01) F02M 9/10 (2006.01)

Patent

CA 1151031

ABSTRACT AUTOMATIC CHOKE An automatic choke for a carburetor comprises a fuel enrichment valve for controlling the flow of fuel into a carburetor, a first operating lever movable by a temperature sensitive element, e.g. a bimetallic coil spring, into engagement with an end stop; a second operating lever for opening and closing the fuel enrichment valve; a resilient connection, e.g. a coaxial coil spring, between the first and second levers by which the first lever moves the second lever to open the fuel enrichment valve at low temperatures; and an override lever operable by a vacuum control device to move the second lever against the bias of the resilient connection to close the fuel enrichment valve at low temperatures and low engine loads.

371980

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