EXHAUST GAS POST-PROCESSING APPARATUS AND CONTROL METHOD THEREFOR

Title:

EXHAUST GAS POST-PROCESSING APPARATUS AND CONTROL METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2015/099458

Kind Code:

A1

Abstract:

The present invention relates to an exhaust gas post-processing apparatus and a control method therefor. The exhaust gas post-processing apparatus and the control method therefor according to the present invention are provided with: a pressure sensor on an exhaust gas line; and a sensor on front/rear ends of the post-processing apparatus which can measure the concentration and the quantity of nitrogen oxide. Consequently, forced-regeneration of the exhaust gas post-processing apparatus can be performed by determining whether the back pressure has increased or whether the reduction efficiency of nitrogen oxide has become poor.

Inventors:

KIM JI SEOK (KR)
MOON SEUNG EUN (KR)
KIM TAE HYUNG (KR)
CHOI NAM IL (KR)

Application Number:

PCT/KR2014/012835

Publication Date:

July 02, 2015

Filing Date:

December 24, 2014

Export Citation:

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Assignee:

DOOSAN INFRACORE CO LTD (KR)

International Classes:

F01N9/00; F01N3/20

Foreign References:

KR20070003322A	2007-01-05
KR20120006238A	2012-01-18
US20080072580A1	2008-03-27
CN103133108A	2013-06-05
CN103388513A	2013-11-13
KR20120081372A	2012-07-19

Other References: