Internal-combustion engines – Charge forming device – Having fuel vapor recovery and storage system
Reexamination Certificate
2005-10-18
2005-10-18
Mohanty, Bibhu (Department: 3747)
Internal-combustion engines
Charge forming device
Having fuel vapor recovery and storage system
Reexamination Certificate
active
06955159
ABSTRACT:
First and second chambers are coaxially arranged and have substantially the same cross sectional area. First and second activated charcoal masses are respectively received in the first and second chambers. A labyrinth structure is arranged between respective first ends of the first and second chambers. An atmospheric air inlet port is provided by a second end of the second chamber. A third chamber is arranged beside the coaxially arranged first and second chambers. The third chamber has a first end positioned near a second end of the first chamber and a second end positioned near the second end of the second chamber. A third activated charcoal mass is received in the third chamber. A connector passage extends between the second end of the first chamber and the first end of the third chamber to provide a fluid connection between the first and third chambers. A fuel vapor inlet port is provided by the second end of the third chamber, and a fuel vapor outlet port is also provided by the second end of the third chamber.
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patent: 4300918 (1981-11-01), Cary
patent: 4693393 (1987-09-01), DeMinco et al.
patent: 5718209 (1998-02-01), Scardino et al.
patent: 2001/0039881 (2001-11-01), Moriyama et al.
patent: 2002/0174857 (2002-11-01), Reddy et al.
patent: 2003-003914 (2003-01-01), None
patent: WO 2004/007939 (2004-01-01), None
Foley & Lardner LLP
Mohanty Bibhu
Nissan Motor Co,. Ltd.
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