Internal-combustion engines – Charge forming device – Having fuel vapor recovery and storage system
Patent
1994-06-30
1995-07-25
Miller, Carl S.
Internal-combustion engines
Charge forming device
Having fuel vapor recovery and storage system
123516, F02M 3704
Patent
active
054352878
ABSTRACT:
An evaporating fuel control apparatus for an internal combustion engine including a canister placed midway of an air passageway for intercommunicating the inside of a fuel tank and an air inlet passageway of an air inlet system of the internal combustion engine and adapted to absorbingly hold evaporated fuel as generated in the fuel tank during stopping of the internal combustion engine, and purging such held evaporated fuel by introduction of fresh air so as to be supplied to the air inlet passageway during the operation of the internal combustion engine. A purge valve is placed midway of the air passageway between the canister and the air inlet passageway and is adapted to control the amount of evaporated fuel supplied to the air inlet passageway depending on the operating condition of the internal combustion engine. An air cut valve controls the feeding and stopping of the supply of air to the canister. A two-way cut valve is adapted to prevent the internal pressure of the fuel tank from becoming abnormal when the air cut valve is closed due to a failure.
REFERENCES:
patent: 4862856 (1989-09-01), Yokoe
patent: 5056493 (1991-10-01), Holzer
patent: 5099880 (1992-03-01), Szlaga
patent: 5172672 (1992-12-01), Harada
patent: 5174265 (1992-12-01), Sekine
patent: 5193512 (1993-03-01), Steinbrenner
patent: 5295472 (1994-03-01), Otsuka
patent: 5297527 (1994-03-01), Suzuki
patent: 5347971 (1994-09-01), Kobayashi
Miller Carl S.
Suzuki Motor Corporation
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