EXHAUST PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE

Title:

EXHAUST PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE

Document Type and Number:

WIPO Patent Application WO/2014/102932

Kind Code:

A1

Abstract:

The objective of the present invention is to prevent a decrease in the NOx purification rate in conjunction with a filter regeneration process in an exhaust purification system for an internal combustion engine equipped with a filter supporting an SCR catalyst. In the present invention, after execution of the filter regeneration process is completed the temperature of the exhaust discharged from the internal combustion engine is increased, thereby increasing the filter temperature and removing hydrocarbons adhering to the filter.

Inventors:

MIKAMI AKIRA (JP)
NAKAYAMA SHIGEKI (JP)
OHASHI NOBUMOTO (JP)
TAKADA KEISHI (JP)
SAKURAI KENJI (JP)
TUKAMOTO YOSHIHISA (JP)
OTSUKI HIROSHI (JP)
MATSUO JUNICHI (JP)
YAMAMOTO ICHIRO (JP)

Application Number:

PCT/JP2012/083659

Publication Date:

July 03, 2014

Filing Date:

December 26, 2012

Export Citation:

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Assignee:

TOYOTA MOTOR CO LTD (JP)
MIKAMI AKIRA (JP)
NAKAYAMA SHIGEKI (JP)
OHASHI NOBUMOTO (JP)
TAKADA KEISHI (JP)
SAKURAI KENJI (JP)
TUKAMOTO YOSHIHISA (JP)
OTSUKI HIROSHI (JP)
MATSUO JUNICHI (JP)
YAMAMOTO ICHIRO (JP)

International Classes:

F01N3/20; F01N3/023; F01N3/025; F01N3/029; F01N3/08; F01N3/24

Foreign References:

JP2011001875A	2011-01-06
JP2009257226A	2009-11-05
JP2009041437A	2009-02-26
JP2006274986A	2006-10-12
JP2004218497A	2004-08-05
JP2007501353A	2007-01-25
JP2007170388A	2007-07-05
JP2009041437A	2009-02-26

Other References: