Evaporative fuel control canister containing absorbent swelling

Details Evaporative fuel control canister containing absorbent swelling Evaporative fuel control canister containing absorbent swelling

1991-09-11

1992-12-22

Hart, Charles

Gas separation

With separating media bypass or system gas pressure relief

Valved bypass means

55387, 123519, B01D 5304

Patent

active

051730952

ABSTRACT:
An evaporative fuel control canister for use in an internal combustion engine includes a canister main body having a vapor absorbing chamber and a liquid separate chamber. The vapor absorbing chamber has a first portion filled with a vapor absorbing material, and a second spatial portion. The liquid separate chamber has an expansible and contractible member containing a liquid absorbing material. The vapor absorbing chamber is adjacent to the liquid separate chamber in a ventilation state. The canister includes a vapor passage coupling a fuel tank and the liquid separate chamber, and a purge passage coupling the internal combustion engine and the liquid separate chamber. The purge passage has a first opening positioned in the expansible and contractible member, and a second opening positioned in the second spatial portion. The canister includes stopper members for maintaining a surface of the expansible and contractible member at a position which the extensible and contractible member does not reach the second opening so that the second spatial portion is always maintained.

REFERENCES:
patent: 4403587 (1983-09-01), Mizuno et al.
patent: 4684382 (1987-08-01), Abu-Isa
patent: 4714485 (1987-12-01), Covert et al.
patent: 4732588 (1988-03-01), Covert et al.

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