Fuel tank vent system and diaphragm valve for such system

Details Fuel tank vent system and diaphragm valve for such system Fuel tank vent system and diaphragm valve for such system

1990-10-29

1991-10-08

Michalsky, Gerald A.

Fluid handling

Control by change of position or inertia of system

Vent opening or closing on tipping container

137587, 220 85VR, 220 85VS, 220 862, 251 613, F16K 2400

Patent

active

050545086

ABSTRACT:
A fuel tank vent valve disposed between the tank and a carbon canister to provide high volume venting between the tank and the canister under normal operating conditions. A diaphragm type control element within the valve pulls an internal valve plate against a seat when the filler pipe cap is removed thereby to close off the vent between the tank and the canister. The system operates with a filler pipe door seal of the type which is opened by the introduction of a filler nozzle. The vent valve is primarily constructed of molded plastic parts.

REFERENCES:
patent: 3177890 (1965-04-01), Rosenberg
patent: 3746036 (1973-07-01), Du Bois et al.
patent: 3957025 (1976-05-01), Heath et al.
patent: 4153073 (1979-05-01), Deters
patent: 4292020 (1981-09-01), Hirt
patent: 4610284 (1986-09-01), Bartholomew
patent: 4714172 (1987-12-01), Morris
patent: 4770677 (1988-09-01), Harris
patent: 4790349 (1988-12-01), Harris
patent: 4816045 (1989-03-01), Szlaga
patent: 4869283 (1989-09-01), Oeffling et al.

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