Failure diagnostic apparatus and failure diagnostic method...

Details Failure diagnostic apparatus and failure diagnostic method... Failure diagnostic apparatus and failure diagnostic method...

2007-04-17

2007-04-17

Miller, Carl S. (Department: 3747)

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

C123S1980DA, C073S118040

Reexamination Certificate

active

11176201

ABSTRACT:
A blocking device provided in an evaporation passage is placed in an open state such that communication between an inside of a canister and an inside of a fuel tank is permitted, a negative pressure generating device provided in an atmospheric passage is operated, and a pressure in the fuel tank is detected, whereby whether a failure has occurred in the fuel tank is determined. Then, the blocking device is placed in a blocking state, the negative pressure generating device operated, and a pressure in the canister is detected, whereby whether a failure has occurred in the canister is determined.

REFERENCES:
patent: 5373823 (1994-12-01), Kuroda et al.
patent: 5443051 (1995-08-01), Otsuka
patent: 5542396 (1996-08-01), Moz
patent: 5767395 (1998-06-01), Goto et al.
patent: 6279548 (2001-08-01), Reddy
patent: 6305361 (2001-10-01), Takaku et al.
patent: 6330878 (2001-12-01), Perry et al.
patent: 6712049 (2004-03-01), Kawano
patent: 6814063 (2004-11-01), Kawano et al.
patent: 6950742 (2005-09-01), Yamaguchi et al.
patent: 2003/0029226 (2003-02-01), Kawano
patent: 2004/0244781 (2004-12-01), Toyoda
patent: 2004/0267435 (2004-12-01), Fujimoto
patent: A 9-195861 (1997-07-01), None
patent: A 2001-115915 (2001-04-01), None
patent: A 2001-317417 (2001-11-01), None
patent: A 2003-28009 (2003-01-01), None

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