Tank-venting apparatus for a motor vehicle and method for operat

Details Tank-venting apparatus for a motor vehicle and method for operat Tank-venting apparatus for a motor vehicle and method for operat

1994-04-20

1996-04-30

Miller, Carl S.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

123516, F02M 3302

Patent

active

055115292

ABSTRACT:
The invention relates to a tank-venting apparatus for a motor vehicle as well as a method for operating the apparatus. The tank-venting apparatus is for a motor vehicle having an internal combustion engine equipped with a charger having an output line. The tank-venting apparatus includes: a tank; an adsorption filter having a venting line extending therefrom; a tank supply line connecting the tank to the adsorption filter; a tank-venting valve connected to the engine; a valve line connecting the tank-venting valve to the adsorption filter; and, control valve means for connecting the output line of the charger to the venting line. In contrast to conventional tank venting apparatus on motor vehicles having an internal combustion engine equipped with a charger, no pump is required which pumps the vapor from the tank-venting apparatus into the intake pipe against the overpressure.

REFERENCES:
patent: 4070828 (1978-01-01), Barres
patent: 5005550 (1991-04-01), Bugin
patent: 5123459 (1992-06-01), Toshihiro
patent: 5146902 (1992-09-01), Cook
patent: 5183023 (1993-02-01), Hanson
patent: 5245975 (1993-09-01), Ito
patent: 5297529 (1994-03-01), Cook
patent: 5333589 (1994-08-01), Otsuka
patent: 5347971 (1994-09-01), Kobayashi
patent: 5353771 (1994-10-01), Blumenstock

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