Internal-combustion engines – Charge forming device – Having fuel vapor recovery and storage system
Patent
1994-11-09
1996-01-30
Miller, Carl S.
Internal-combustion engines
Charge forming device
Having fuel vapor recovery and storage system
123198D, F02M 3302
Patent
active
054873690
ABSTRACT:
An evaporative emission control system for an internal combustion engine includes a canister for adsorbing evaporative fuel generated in the fuel tank, a communication passage connecting between first and second adsorbent chambers defined in the canister, a first introducing passage for introducing the generated evaporative fuel into the canister on an occasion other than at fueling, a purging passage for purging the evaporative fuel adsorbed into the canister to the intake passage, and an air-inlet passage communicating with the atmosphere. The first introducing passage, the second air-inlet passage and the purging passage are connected to the first adsorbent chamber. A second introducing passage is connected to the second adsorbent chamber, for introducing the evaporative fuel thereinto at refueling, and an additional passage having a cross sectional area larger than that of the air-inlet passage and communicating with the atmosphere is connected to the first adsorbent chamber. A first valve is arranged across the air-inlet passage, for closing the same at refueling, and a second valve across the additional passage, for opening the same at refueling.
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patent: 4836172 (1989-06-01), Haruta
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patent: 5170765 (1992-12-01), Hoshino
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patent: 5209210 (1993-05-01), Ikeda
patent: 5361743 (1994-11-01), Denz
Hara Takeshi
Hidano Kouichi
Kawakami Tomoyuki
Wakashiro Teruo
Yamazaki Kazumi
Honda Giken Kogyo Kabushiki Kaisha
Miller Carl S.
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