Internal-combustion engines – Combustion chamber means having fuel injection only
Reexamination Certificate
2007-06-12
2007-06-12
Cronin, Stephen K. (Department: 3747)
Internal-combustion engines
Combustion chamber means having fuel injection only
C123S090150, C123S568140
Reexamination Certificate
active
11172505
ABSTRACT:
A four-stroke internal combustion engine is operated in controlled auto-ignition mode by any of a variety of valve control strategies conducive to controlled auto-ignition conditions in conjunction with in-cylinder fuel charges that are at either stoichiometric or lean of stoichiometric air-fuel ratios. A measure of engine NOx emission is provided and when it crosses a predetermined threshold, the in-cylinder fuel charge is transitioned from the operative one of the stoichiometric or lean of stoichiometric air-fuel ratios to the inoperative one of the stoichiometric or lean of stoichiometric air-fuel ratios.
REFERENCES:
patent: 6082342 (2000-07-01), Duret et al.
patent: 6267097 (2001-07-01), Urushihara et al.
patent: 6386177 (2002-05-01), Urushihara et al.
patent: 2003/0110760 (2003-06-01), Shirakawa
patent: WO0146571 (2001-06-01), None
patent: WO0146572 (2001-06-01), None
patent: WO0146573 (2001-06-01), None
Brown Barry L.
Chang Chen-Fang
Eng James A.
Kang Jun-Mo
Kuo Tang-Wei
Cronin Stephen K.
GM Global Technology Operations Inc.
Hoang Johnny H.
Marra Kathryn A.
LandOfFree
NOx emission control for a controlled auto-ignition... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with NOx emission control for a controlled auto-ignition..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and NOx emission control for a controlled auto-ignition... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3829582