Fluid handling – Control by change of position or inertia of system – Vent opening or closing on tipping container
Patent
1993-08-30
1994-05-24
Nilson, Robert G.
Fluid handling
Control by change of position or inertia of system
Vent opening or closing on tipping container
123514, 123516, 137588, F16K 1736
Patent
active
053139780
ABSTRACT:
An object of the invention is to improve a ventilation line opening/closing means of a fuel tank which interrupts a ventilation line from the fuel tank to a canister during fuel supply so as to restrict the fuel level when the tank is full, and which opens the ventilation line during traveling of a vehicle. This invention provides a ventilation line opening/closing means of a fuel tank, comprising a float valve provided in a ventilation line for introducing gas of the fuel tank into a canister so as to control ventilation, wherein a fuel receiving portion of return fuel including escape holes is integrally formed on a lower portion of a vent shut-off valve, so that the vent shut-off valve is opened by return fuel from the engine during operation of the engine, and that the vent shut-off valve is closed by the force of a spring during a stop of the engine.
REFERENCES:
patent: 4811718 (1989-03-01), Sonoda
patent: 5044389 (1991-09-01), Gimby
patent: 5044397 (1991-09-01), Szlaga et al.
patent: 5050567 (1991-09-01), Suzuki
patent: 5065782 (1991-11-01), Szlaga
patent: 5156178 (1992-10-01), Harris
Shimada Shinya
Takaki Hiroshi
Nilson Robert G.
OM Industrial Co., Ltd.
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