Air control valve assembly for fuel evaporative emission storage

Details Air control valve assembly for fuel evaporative emission storage Air control valve assembly for fuel evaporative emission storage

1998-05-06

1999-03-09

Miller, Carl S.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

123516, F02M 3704

Patent

active

058787291

ABSTRACT:
An air control valve assembly for the air side of an automotive fuel evaporative emission control system incorporates two passive check valves and an active blocking valve which cooperate to divide the air filtered air inlet path from the air exit path to atmosphere. The possibility of break through vapors flowing back into the air cleaner during canister vapor fill is avoided through the use of oppositely opening check valves. By adding an active blocking valve below the freely movable air inlet check valve, the canister can be rigorously sealed from the atmosphere during a diagnostic evacuation test.

REFERENCES:
patent: 4703736 (1987-11-01), Atkins
patent: 5295472 (1994-03-01), Otsuka et al.
patent: 5383437 (1995-01-01), Cook
patent: 5398660 (1995-03-01), Koyama
patent: 5437257 (1995-08-01), Giacomazzi
patent: 5462100 (1995-10-01), Covert et al.
patent: 5474050 (1995-12-01), Cook
patent: 5509395 (1996-04-01), Cook
patent: 5590634 (1997-01-01), Shinohara
patent: 5635630 (1997-06-01), Dawson
patent: 5669362 (1997-09-01), Shinohara et al.
patent: 5685285 (1997-11-01), Ohtani
patent: 5727530 (1998-03-01), Honda
patent: 5803054 (1998-09-01), Yamazaki

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