Internal and external LP EGR for boosted engines

Details Internal and external LP EGR for boosted engines Internal and external LP EGR for boosted engines

2011-05-03

2011-05-03

Vo, Hieu T (Department: 3747)

Internal-combustion engines

Spark ignition timing control

Electronic control

C060S611000, C123S568120

Reexamination Certificate

active

07934486

ABSTRACT:
A method for controlling combustion in a combustion chamber of a turbocharged engine is described. The method includes admitting to the combustion chamber prior to ignition a first amount of exhaust from an intake manifold of the engine, the first amount changing at a first rate in response to a changing engine load. The method also includes retaining in the combustion chamber prior to the ignition a second amount of exhaust from the combustion chamber, the second amount changing at a second rate, greater than the first rate, in response to the changing engine load.

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