Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Reexamination Certificate
2005-06-07
2005-06-07
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...
C060S278000, C060S280000, C060S295000, C123S568200
Reexamination Certificate
active
06901746
ABSTRACT:
An exhaust gas deNOx apparatus, which can make an NOx adsorber catalyst compact and does not impair reliability of an engine, is provided. To this end, the apparatus is provided with an NOx adsorber catalyst for adsorbing and releasing NOx, an exhaust gas recirculating circuit for mixing an exhaust gas into intake air, and an exhaust gas recirculating circuit adjusting valve and controller for recirculating a predetermined amount of the exhaust gas for reducing NOx when the adsorbed NOx accumulation amount is a predetermined value or less, and recirculating the aforementioned predetermined amount or more of exhaust gas to bring an air fuel ratio into a rich state when the adsorbed NOx accumulation amount exceeds a predetermined value and is to be released.
REFERENCES:
patent: 5172550 (1992-12-01), Takeshima
patent: 5551408 (1996-09-01), Shimizu et al.
patent: 5564283 (1996-10-01), Yano et al.
patent: 5732554 (1998-03-01), Sasaki et al.
patent: 5826427 (1998-10-01), Yanagihara et al.
patent: 6101999 (2000-08-01), Ohashi et al.
patent: 6105365 (2000-08-01), Deeba et al.
patent: 6109025 (2000-08-01), Murata et al.
patent: 6134883 (2000-10-01), Kato et al.
patent: 6279552 (2001-08-01), Okada et al.
patent: 6330880 (2001-12-01), Okada et al.
patent: 6681564 (2004-01-01), Nishiyama et al.
patent: 6697729 (2004-02-01), Wright
patent: 7-279218 (1995-10-01), None
Nishiyama Toshihiko
Wakamoto Koutaro
Komatsu Ltd.
Nguyen Tu M.
Rader & Fishman & Grauer, PLLC
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