Patent ID: 7743608
Filing Date: 2010-06-29
Classification: F01N,F02B,F02D,Y02T

Abstract:
1. An exhaust gas purifying apparatus for an internal combustion engine comprising: 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 are to 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 are to be regenerated, wherein the regeneration control unit simultaneously executes the regeneration control for the plural exhaust gas purifying units in a case that a change of a combustion mode of the internal combustion engine is involved before and after execution of the regeneration control, and independently executes the regeneration control for each of the plural exhaust gas purifying units in a case that the change of the combustion mode is not involved before and after the execution of the regeneration control.