Fuel tank venting system for reduced fuel permeation

Details Fuel tank venting system for reduced fuel permeation Fuel tank venting system for reduced fuel permeation

2005-01-11

2005-01-11

Michalsky, Gerald A. (Department: 3753)

Fluid handling

Diverse fluid containing pressure systems

Fluid separating traps or vents

C137S587000

Reexamination Certificate

active

06840264

ABSTRACT:
The present invention involves a venting system for venting a gaseous fluid from a tank having an aperture and a fuel delivery module cover. The tank is made of a predetermined material. The venting system comprises a venting valve for venting gaseous hydrocarbon fluid at a predetermined pressure from the tank. The valve is disposed through the aperture to define a circumferential space between the inner side of the outer lip and the venting valve. The system further includes a cover comprising the predetermined material and attached to the outer layer to seal the valve between the cover and the outer layer. The system further includes a retention member disposed about the venting valve and attached to the outer layer about the outer side of the outer lip defining an expansion boundary so that the outer lip only expands toward the venting valve to seal the circumferential space when the tank absorbs hydrocarbons.

REFERENCES:
patent: 6189567 (2001-02-01), Foltz
patent: 6408867 (2002-06-01), Aoki et al.
patent: 6422261 (2002-07-01), DeCapua et al.
patent: 6591857 (2003-07-01), Engle et al.
patent: 20020011490 (2002-01-01), Nakamura et al.
patent: 20020096522 (2002-07-01), Palvoelgyi et al.
patent: 20030062083 (2003-04-01), Nishi et al.

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