Fuel vapor treatment apparatus

Details Fuel vapor treatment apparatus Fuel vapor treatment apparatus

2006-06-15

2008-03-11

Moulis, Thomas (Department: 3747)

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

C123S519000, C123S520000, C073S114220

Reexamination Certificate

active

07341048

ABSTRACT:
A concentration-detecting unit detects concentration of fuel vapor flowing in a concentration-detecting passage branched from a purge passage. The concentration-detecting passage communicates with a communicating passage of a canister. Air including the fuel vapor of which concentration is detected by a concentration-detecting unit is returned to the communicating passage of the canister. The fuel vapor is adsorbed by an absorbent accommodated in a accommodating chamber to restrict a discharge of the fuel vapor into atmosphere.

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patent: 7234450 (2007-06-01), Takakura et al.
patent: 2006/0042605 (2006-03-01), Amano et al.
patent: 2007/0175455 (2007-08-01), Amano et al.
patent: 2007/0246024 (2007-10-01), Sato
patent: 5-18326 (1993-01-01), None

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