Device for the aeration of a fuel tank

Details Device for the aeration of a fuel tank Device for the aeration of a fuel tank

1987-07-23

1988-10-25

Cohan, Alan

Fluid handling

Control by change of position or inertia of system

Vent opening or closing on tipping container

137202, 137588, F16K 1736

Patent

active

047796375

ABSTRACT:
The device comprises, on one hand, a degassing tube (5) having one end (5a) which opens onto the upper inner part of the tank, markedly lower down than an upper wall (2) of the tank, and, on the other hand, a pipe (8) connecting the inner part to the exterior of the tank through a valve (V) carried by the wall (2), the valve being of the normally open ball (19) and float (10) type, the float (10) extending sufficiently downwardly to be raised by the fuel (7) when the latter reaches said end (5a), the lower end (10B) of the float (10) being lower than the end (5a) of the tube (5), and means are provided to ensure that this raising closes the valve (V) in a partly opened state. This device ensures simultaneously a permanent communication of the inside of the tank (1) with the atmosphere, a guarantee of an integrated expansion volume in the tank, and the prevention of flow of fuel in the event of an overturning of the vehicle.

REFERENCES:
patent: 3643690 (1972-01-01), Sarai
patent: 3765435 (1973-10-01), Schlanzky
patent: 3800978 (1974-04-01), Sigwald
patent: 3910302 (1975-10-01), Sudhir
patent: 3970098 (1976-07-01), Boswank
patent: 3996951 (1976-12-01), Parr et al.
patent: 4095609 (1978-06-01), Martin
patent: 4579135 (1986-04-01), Sakata et al.

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