Exhaust emission control system for vehicle internal...

Details Exhaust emission control system for vehicle internal... Exhaust emission control system for vehicle internal...

2007-05-15

2007-05-15

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, C060S292000, C060S324000

Reexamination Certificate

active

10346086

ABSTRACT:
Normally, at the time of cold-start of an internal combustion engine or the like, the flow of exhaust in an exhaust passage of the internal combustion engine is suppressed or two-stage combustion is carried out so as to promote exhaust purification in an exhaust system. However, when a correlation value of a braking force required to be generated by a vacuum type brake booster is greater than a correlation value of a braking force that can be actually generated by the vacuum type brake booster, a restricting device restricts the suppression of the exhaust flow or a two-stage combustion prohibiting device prohibits the two-combustion.

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