System and method for exhaust heat generation using...

Details System and method for exhaust heat generation using... System and method for exhaust heat generation using...

2006-10-31

2006-10-31

Solis, Erick (Department: 3747)

Internal-combustion engines

Spark ignition timing control

Electronic control

C123S090150, C123S19800E

Reexamination Certificate

active

07128052

ABSTRACT:
A method for operating an engine having at least a first and second cylinder [group], the first cylinder having a first electrically actuated valve and the second cylinder having a second electrically actuated valve, comprising of operating the first cylinder with a spark timing more retarded than a spark timing of a second cylinder, where during said operation, said first cylinder operates with a first operation of said first electrically actuated valve and said second cylinder operates with a second operation of said second electrically actuated valve, where said first operation is different from said second operation.

REFERENCES:
patent: 5211011 (1993-05-01), Nishikawa et al.
patent: 6725830 (2004-04-01), Surnilla
patent: 2003/0121500 (2003-07-01), Shimizu
patent: 2003/0209228 (2003-11-01), Miura
patent: 2005/0197761 (2005-09-01), Bidner et al.

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