Automatic choke

Details Automatic choke Automatic choke

1981-12-28

1983-08-02

Miles, Tim R.

Gas and liquid contact apparatus

Fluid distribution

Valved

261 44F, 261 50A, F02M 106

Patent

active

043965580

ABSTRACT:
An automatic choke for a carburetor comprises a fuel enrichment valve (59, 60) for controlling the flow of fuel into a carburetor, a first operating lever (54) movable by a temperature sensitive element, e.g. a bimetallic coil spring, into engagement with an end stop (100); a second operating lever (57) for opening and closing the fuel enrichment valve (59, 60); a resilient connection, e.g. a coaxial coil spring (64), between the first and second levers (54, 57) by which the first lever moves the second lever to open the fuel enrichment valve at low temperatures; and an override lever (72) operable by a vacuum control device (73-80) 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.

REFERENCES:
patent: 3695591 (1972-10-01), Caisley
patent: 3957026 (1976-05-01), Winkley et al.
patent: 4094931 (1978-06-01), Karino
patent: 4172864 (1979-10-01), Hohsho et al.

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