Exhaust gas purification system for internal combustion...

Details Exhaust gas purification system for internal combustion... Exhaust gas purification system for internal combustion...

2011-03-01

2011-03-01

Nguyen, Tu M (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

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

C060S276000, C060S277000, C060S311000, C060S324000

Reexamination Certificate

active

07895830

ABSTRACT:
If an exhaust throttle valve changes to ON state from OFF state under a filter regeneration control condition for regenerating a PM filter, a differential pressure sensor detects a change of a differential pressure following an operation of the exhaust throttle valve. An increase in an exhaust backpressure is calculated based upon the change in the differential pressure. If the increase in the exhaust backpressure is lower than a predetermined value, the operation of the exhaust throttle valve is determined to be malfunctioning.

REFERENCES:
patent: 6381952 (2002-05-01), Asanuma et al.
patent: 6711892 (2004-03-01), Tamura et al.
patent: 6968677 (2005-11-01), Tamura
patent: 6988361 (2006-01-01), van Nieuwstadt et al.
patent: 7051689 (2006-05-01), Tamura et al.
patent: 7146803 (2006-12-01), Streib
patent: 7178330 (2007-02-01), Kouzu et al.
patent: 7721534 (2010-05-01), Sato et al.
patent: 4-81513 (1992-03-01), None
patent: 8-291707 (1996-11-01), None
patent: 2003-074328 (2003-03-01), None
patent: 2003-269147 (2003-09-01), None
patent: 2005-76604 (2005-03-01), None
Japanese Office Action dated May 30, 2008.

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