Internal-combustion engines – Charge forming device – Having fuel vapor recovery and storage system
Patent
1994-10-04
1995-10-10
Miller, Carl S.
Internal-combustion engines
Charge forming device
Having fuel vapor recovery and storage system
123519, F02M 3302
Patent
active
054562376
ABSTRACT:
In an evaporative fuel processing device, a canister is divided into first, second, third and fourth chambers by partition walls. A control valve is provided in a communication passage which connects the second and third chambers to each other. A first charge passage is connected to an upper space in a fuel tank and to a port in the third chamber, and a second charge passage is connected to a fuel supply valve for the fuel tank and to a port in the first chamber. Further, a purge passage is connected to an intake passage of an internal combustion engine and to a port in the first chamber. The control valve is connected to an electronic control unit, and opened during refueling and during traveling of a vehicle and closed during parking of the vehicle. Thus, it is possible to reliably prevent an evaporative fuel from being released to the atmosphere, while the capacity of the canister to a minimum.
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patent: 4790283 (1988-12-01), Uranishi
patent: 4815436 (1989-03-01), Sasaki
patent: 4887578 (1989-12-01), Woodcock
patent: 4951643 (1990-08-01), Sato
patent: 5056494 (1991-10-01), Kayanuma
patent: 5337721 (1994-08-01), Kasuya
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Hara Takeshi
Hidano Koichi
Kawakami Tomoyuki
Wakashiro Teruo
Yamazaki Kazumi
Honda Giken Kogyo Kabushiki Kaisha
Miller Carl S.
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