Fuel tank venting system for a vehicle with an internal combusti

Details Fuel tank venting system for a vehicle with an internal combusti Fuel tank venting system for a vehicle with an internal combusti

1997-11-03

1999-07-06

Moulis, Thomas N.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

123516, F02M 3304

Patent

active

059185805

ABSTRACT:
In a fuel tank venting system for a vehicle with an internal combustion engine having an air intake duct and an adsorption filter in which fuel vapors are adsorbed, a venting line extends from the adsorption filter to the air intake duct and includes a regeneration valve, and a bypass line is disposed in parallel with a section of the venting line and includes an air pump for pumping air from the adsorption filter to the air intake duct to provide for venting air flow particularly when the engine is operating under a high load where little vacuum is generated in the air intake duct.

REFERENCES:
patent: 5183023 (1993-02-01), Hanson
patent: 5190015 (1993-03-01), Nakata et al.
patent: 5220898 (1993-06-01), Kidokoro et al.
patent: 5245973 (1993-09-01), Otsuka et al.
patent: 5273020 (1993-12-01), Hayami
patent: 5349934 (1994-09-01), Miyano
patent: 5371412 (1994-12-01), Iwashita et al.
patent: 5477842 (1995-12-01), Maruyama et al.
patent: 5533479 (1996-07-01), Wild et al.
patent: 5544483 (1996-08-01), Heuer

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