Exhaust gas purifying apparatus for internal combustion engine

Details Exhaust gas purifying apparatus for internal combustion engine Exhaust gas purifying apparatus for internal combustion engine

2006-03-09

2010-06-29

Denion, Thomas E. (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

C060S285000, C060S287000

Reexamination Certificate

active

07743608

ABSTRACT:
An exhaust gas purifying apparatus for an internal combustion engine includes plural exhaust gas purifying units which are provided on exhaust gas passages connected to plural cylinder groups in the internal combustion engine and purify exhaust gas flowing in the exhaust gas passages, a regeneration determining unit which determines whether or not the plural exhaust gas purifying units should be regenerated, and a regeneration control unit which executes regeneration control for regenerating the exhaust gas purifying units when the regeneration determining unit determines that the exhaust gas purifying units should be regenerated. The regeneration control unit simultaneously executes the regeneration control for the plural exhaust gas purifying units when a change of a combustion mode of the internal combustion engine is involved before and after execution of the regeneration control. Meanwhile, the regeneration control unit independently executes the regeneration control for each of the plural exhaust gas purifying units when the change of the combustion mode is not involved before and after the execution of the regeneration control.

REFERENCES:
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Hasenclever et al., DE 10,101,593 A1 English Abstract, Jul. 18, 2002.

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