Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Reexamination Certificate
2005-12-27
2005-12-27
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...
C060S274000, C060S284000, C060S285000, C060S295000, C055SDIG030
Reexamination Certificate
active
06978603
ABSTRACT:
In an exhaust gas control device-equipped internal combustion engine, particulate matter produced in conjunction with combustion of gasoline in a combustion chamber is oxidized by an exhaust gas control device provided in an exhaust passage. The engine includes air-fuel ratio control changer that changes between a feedback control toward a stoichiometric air-fuel ratio whereby an amount of oxygen in exhaust gas is reduced and a feedback control toward a lean-burn combustion side whereby the amount of oxygen in exhaust gas is increased, if the oxidation speed of particulate matter in the exhaust gas control device provided in the exhaust passage is slow, or if the amount of deposit of particulate matter is great.
REFERENCES:
patent: 5746984 (1998-05-01), Hoard
patent: 5758496 (1998-06-01), Rao et al.
patent: 6090187 (2000-07-01), Kumagai
patent: 6167696 (2001-01-01), Maaseidvaag et al.
patent: 6233927 (2001-05-01), Hirota et al.
patent: 6412276 (2002-07-01), Salvat et al.
patent: 6479023 (2002-11-01), Evans et al.
patent: 6557340 (2003-05-01), Twigg et al.
patent: 6594990 (2003-07-01), Kuenstler et al.
patent: 6817174 (2004-11-01), Igarashi et al.
patent: 199 04 736 (2000-08-01), None
patent: 697 03 680 (2001-05-01), None
patent: 0 828 063 (2000-12-01), None
patent: A-64-77718 (1989-03-01), None
patent: A 1-318715 (1989-12-01), None
patent: A-6-272541 (1994-09-01), None
patent: B2 7-106290 (1995-11-01), None
patent: A-11-125132 (1999-05-01), None
patent: A-2000-45843 (2000-02-01), None
patent: A-2000-303878 (2000-10-01), None
patent: WO 98/10177 (1998-03-01), None
U.S. Appl. No. 10/088,476, filed Mar. 20, 2002, Hirota et al.
Nguyen Tu M.
Toyota Jidosha & Kabushiki Kaisha
LandOfFree
Exhaust gas control device-equipped internal combustion... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Exhaust gas control device-equipped internal combustion..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exhaust gas control device-equipped internal combustion... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3503235