EXHAUST GAS PURIFYING APPARATUS OF THERMAL ENGINE AND EXHAUST GAS PURIFYING METHOD

Title:

EXHAUST GAS PURIFYING APPARATUS OF THERMAL ENGINE AND EXHAUST GAS PURIFYING METHOD

Document Type and Number:

Japanese Patent JP2013244483

Kind Code:

A

Abstract:

To provide an exhaust gas purifying apparatus of a thermal engine, which purifies CO and HC in an exhaust gas in oxygen excessive atmosphere with high purification performance.

An exhaust gas purifying apparatus of a thermal engine is arranged at an exhaust gas channel 3 of the thermal engine discharging an exhaust gas of oxygen excessive atmosphere compared to a stoichiometric amount in an oxidation reaction of CO and HC. The exhaust gas purifying apparatus includes a first purifying part 5 containing a conversion catalyst component converting at least one adsorption component of NOx and HC in the exhaust gas or at least a part of HC in the exhaust gas into CO, and a second purifying part 6 containing a purifying catalyst component oxidizing CO or HC in the exhaust gas passing through the first purifying part 5 to purify.

Inventors:

KANAE MASAHITO
SUGANO SHUICHI
HO KA
MINAMI WATARU
YAMAGUCHI SHOJI

Application Number:

JP2012122473A

Publication Date:

December 09, 2013

Filing Date:

May 29, 2012

Export Citation:

Click for automatic bibliography generation Help

Assignee:

HITACHI CONSTRUCTION MACHINERY

International Classes:

B01J23/63; B01D53/94; B01J23/42; B01J29/22; B01J37/02; F01N3/08; F01N3/10; F01N3/24; F01N3/28

Domestic Patent References:

JP2011212625A	2011-10-27
JP2003035135A	2003-02-07
JPH0663359A	1994-03-08
JP2001289035A	2001-10-19
JPH07166853A	1995-06-27

Foreign References:

WO2011067863A1

2011-06-09

Attorney, Agent or Firm:

Kasuga Toshiaki
Inoki Yuichi

Previous Patent: METHOD FOR TREATING HYDROFLUORIC ACID WASTE LIQUID

Next Patent: REGULAR PACKING TYPE GAS-LIQUID CONTACT SYSTEM CHANGEABLE BETWEEN VERTICAL STRUCTURE AND WAVY STRUCT...