Roll-over valve and vapor separator

Details Roll-over valve and vapor separator Roll-over valve and vapor separator

1974-01-24

1976-02-10

Myhre, Charles J.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

F02D 1900

Patent

active

039371980

ABSTRACT:
A vacuum controlled valve either in series or parallel with the customary bleed orifice in the vapor flow path from the fuel tank to the charcoal canister of an automobile evaporative control system opens when the engine is operating to direct fuel vapor flow from the tank to the fuel-air inlet induction conduit, thereby to prevent excessive fuel vapor pressure in the tank that would otherwise be released to the atmosphere via the customary pressure vented closure cap for the fuel tank filler spout.

REFERENCES:
patent: 3352294 (1967-11-01), Biller et al.
patent: 3370578 (1968-02-01), Spelts
patent: 3518977 (1970-07-01), Smith
patent: 3614960 (1971-10-01), Pfrengle
patent: 3616783 (1971-11-01), La Masters
patent: 3628517 (1971-12-01), Soberski
patent: 3656463 (1972-04-01), Kranc
patent: 3690307 (1972-09-01), O'Neill
patent: 3752134 (1973-08-01), Hollis, Jr.
patent: 3769952 (1973-11-01), Fiedler et al.

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