Internal-combustion engines – Charge forming device – Having fuel vapor recovery and storage system
Reexamination Certificate
2007-06-12
2009-02-03
Moulis, Thomas N (Department: 3747)
Internal-combustion engines
Charge forming device
Having fuel vapor recovery and storage system
Reexamination Certificate
active
07484501
ABSTRACT:
A fuel vapor treatment apparatus includes a first canister purges fuel vapor into an intake passage of an engine through a purge passage, which communicates with a first detection passage having a throttle. A second canister is located on an opposite side of the purge passage with respect to the throttle, and communicates with the first detection passage. A gas flow generating unit generates gas flow by reducing pressure in a second detection passage communicating with the second canister. A pressure detecting unit detects pressure correlated with the throttle and the gas flow generating unit. An exhaust detecting unit detects exhaust of fuel vapor from the second canister to the second detection passage. A purge control unit controls purge of fuel vapor from the purge passage to the intake passage in accordance with detection results of the pressure detecting unit and the exhaust detecting unit.
REFERENCES:
patent: 6971375 (2005-12-01), Amano et al.
patent: 7318425 (2008-01-01), Kano et al.
patent: 7409947 (2008-08-01), Koyama
patent: 2006/0042605 (2006-03-01), Amano et al.
patent: 2006/0225713 (2006-10-01), Kano et al.
patent: 2008/0092858 (2008-04-01), Satoh et al.
patent: 05-018326 (1993-01-01), None
patent: 06-101534 (1994-04-01), None
Amano Noriyasu
Kanoh Masao
Shiokawa Terutoshi
Takakura Shinsuke
DENSO Corporation
Moulis Thomas N
Nippon Soken Inc.
Nixon & Vanderhye PC
LandOfFree
Fuel vapor treatment apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fuel vapor treatment apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fuel vapor treatment apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4102902