Venting system for a fuel tank

Details Venting system for a fuel tank Venting system for a fuel tank

1991-05-20

1993-10-26

Nilson, Robert G.

Fluid handling

Diverse fluid containing pressure systems

Fluid separating traps or vents

137588, 220746, F16K 2400

Patent

active

052557022

ABSTRACT:
A venting system for a motor vehicle fuel tank comprises a fuel tank having a filling pipe, an overflow duct, a gas vent duct, a safety valve; fresh air duct for removal of excess fuel vapour from the fuel tank through the fresh air duct. A scavenging duct and an auxiliary valve for overcoming failure of the scavenging duct and/or of the safety valve, in order to ensure that the fuel tank is vented through the fresh air duct are also provided.

REFERENCES:
patent: 4000828 (1977-01-01), Crute
patent: 4742809 (1988-05-01), Ito et al.
patent: 4893643 (1990-01-01), Gifford
patent: 4974645 (1990-12-01), Johnson
patent: 5004002 (1991-04-01), Kobayashi

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