Fluent material handling – with receiver or receiver coacting mea – Diverse fluid containing pressure filling systems involving... – Filling with exhausting the receiver
Patent
1991-06-06
1992-06-23
Recla, Henry J.
Fluent material handling, with receiver or receiver coacting mea
Diverse fluid containing pressure filling systems involving...
Filling with exhausting the receiver
123520, 137587, 220746, F02M 3302
Patent
active
051234599
ABSTRACT:
An improved fuel tank apparatus for use in a vehicle having a filler lid provided in a body of the vehicle includes a fuel tank in which fuel is to be stored, a filler tube connected to the fuel tank for introducing fuel into the fuel tank, a filler cap removably attached to an inlet port of the filler tube, a canister for absorbing and treating evaporated fuel generated in the fuel tank, an evaporation tube connected between the fuel tank and the canister, a check valve provided in the evaporation tube for releasing the evaporated fuel to the canister when pressure inside the fuel tank exceeds a predetermined level due to evaporation of the fuel in the fuel tank, and a mechanism for releasing the evaporated fuel which remains within the fuel tank due to the pressure inside the fuel tank being less than the predetermined level into the canister. The releasing mechanism is operated only when the filler lid is opened under the condition that the filler cap if closed. The releasing mechanism includes a bypass passage connected to the evaporation tube at the opposite sides of the check valve, an electromagnetic valve provided in the bypass passage for closing or opening the bypass passage, and a controlling circuit for controlling the electromagnetic valve such that the bypass passage is opened to release the evaporated fuel to the canister only when the filler lid is opened under the condition that filler cap is still closed.
REFERENCES:
patent: 3001519 (1961-09-01), Dietrich et al.
patent: 4659346 (1987-04-01), Uranishi et al.
patent: 4762156 (1988-08-01), Rich
patent: 4815436 (1989-03-01), Sasaki et al.
Kupferschmid Keith
Nissan Motor Company Ltd.
Recla Henry J.
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