Secondary air feeding apparatus and method of detecting...

Details Secondary air feeding apparatus and method of detecting... Secondary air feeding apparatus and method of detecting...

2005-07-19

2005-07-19

Tran, Binh Q. (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

C060S274000, C060S277000, C060S290000, C060S292000, C060S293000

Reexamination Certificate

active

06918245

ABSTRACT:
The invention relates to a secondary air feeding apparatus and a method of detecting an abnormality in the apparatus capable of making a precise determination on abnormalities in components and detecting operational failures as well. According to one aspect of the invention, the opening-closing state of opening-closing means (ASV) is switched during the operation of an air pump, and abnormalities in respective components are detected on the basis of pressure values and pressure fluctuation values detected by a pressure sensor disposed between the air pump and the ASV before and after the switching of the opening-closing means.

REFERENCES:
patent: 5140810 (1992-08-01), Kuroda
patent: 5400591 (1995-03-01), Aramaki
patent: 5519992 (1996-05-01), Hosoya et al.
patent: 5560199 (1996-10-01), Agustin et al.
patent: 5706653 (1998-01-01), Shoji et al.
patent: 5782086 (1998-07-01), Kato et al.
patent: 5852929 (1998-12-01), Kato et al.
patent: 5921077 (1999-07-01), Bayerle et al.
patent: 6023401 (2000-02-01), Hashimoto et al.
patent: 6138504 (2000-10-01), Lewis et al.
patent: 6233925 (2001-05-01), Hirota et al.
patent: 6393833 (2002-05-01), Mizoguchi
patent: A 9-21312 (1997-01-01), None
patent: A 9-125945 (1997-05-01), None
patent: A 9-125946 (1997-05-01), None

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