SYSTEM FOR IMPROVED EMISSION CONTROL OF INTERNAL COMBUSTION ENGINE

Title:

SYSTEM FOR IMPROVED EMISSION CONTROL OF INTERNAL COMBUSTION ENGINE

Document Type and Number:

Japanese Patent JP2010001895

Kind Code:

A

Abstract:

To provide a system for improving performance and emission control of an internal combustion engine equipped with a nitrogen oxides storage-reduction (NSR) emission control system.

This system has an NSR catalyst 206, a fuel processor 200 located upstream of the NSR catalyst and at least one fuel injection port 208. The fuel processor 200 converts fuel into a reducing gas mixture (including CO and H2). The reducing gas mixture is then fed into the NSR catalyst 206, where it regenerates an NSR adsorbent, reduces NOx to nitrogen, and optionally periodically desulfates the NSR catalyst. The fuel processor 200 includes one or more catalysts which facilitate reactions such as combustion, partial oxidation and/or reforming and help consume excess oxygen present in an engine exhaust stream.

Inventors:

DALLA BETTA RALPH
CIZERON JOEL

Application Number:

JP2009190306A

Publication Date:

January 07, 2010

Filing Date:

August 19, 2009

Export Citation:

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Assignee:

EATON CORP

International Classes:

F01N3/08; F04B17/04; B01D53/94; F01N3/02; F01N3/20; F01N3/24; F01N3/28; F01N3/36; F01N13/02

Domestic Patent References:

JP2000170523A	2000-06-20
JP2001234737A	2001-08-31
JPH09250331A	1997-09-22
JP2000327409A	2000-11-28
JP2001303944A	2001-10-31
JP2001162177A	2001-06-19
JPH06146863A	1994-05-27
JPH07332070A	1995-12-19

Foreign References:

WO1999013972A1	1999-03-25
WO1999050540A1	1999-10-07

Attorney, Agent or Firm:

Calyx
Miyazaki Yoshio
Kaoru Onozuka
Akio Tagami
High Masahiro

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