Fuel shut-off valve

Details Fuel shut-off valve Fuel shut-off valve

1985-06-03

1986-10-14

Schwadron, Martin P.

Valves and valve actuation

With friction detent

251252, 74 99A, F16K 31528

Patent

active

046168052

ABSTRACT:
A fuel shut-off valve for an internal combustion engine carburetor which includes passages leading from a fuel source to a controlled fuel passage. A valve seat is interposed between these passages disposed to be closed by a plunger type valve biased toward the valve seat by a coil spring. An actuator for the valve includes a configuration to keep the valve from rotating and a cross-pin transfixing a valve stem on the plunger type valve. A cam lever has a collar surrounding the valve stem with cam surfaces to engage the cross-pin which upon rotation will lift the valve off of the valve seat. A radial detent groove at the top of the cam surface receives the cross-pin to establish the open position of the valve. Release of the pin from the detent groove causes the pin to ride down the cam surface under the bias of the spring to a closed position.

REFERENCES:
patent: 953650 (1910-03-01), Walsh
patent: 1036012 (1912-08-01), Schuermann
patent: 1490628 (1924-04-01), Myers
patent: 2069848 (1937-02-01), Pickup
patent: 2664265 (1953-12-01), Howser
patent: 3127786 (1964-04-01), Wooley
patent: 4462567 (1984-07-01), Habicht

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