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Patent Searching and Data


Title:
EXHAUST GAS RECIRCULATION APPARATUS AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2014/104611
Kind Code:
A1
Abstract:
The present invention relates to an exhaust gas recirculation apparatus for preventing ammonia slip leaking from a post-processing unit from flowing into a suction line, comprising: an engine; a suction line connected to the engine to supply suctioned air; an exhaust line connected to the engine to discharge exhaust gas to the outside; a post-processing unit provided to the exhaust line to reduce hazardous substances contained in the exhaust gas; a first circulation line for re-guiding, to the suction line, a part of the exhaust gas guided to the exhaust line; a second circulation line for re-guiding, to the suction line, a part of the exhaust gas guided to the lower part of the post-processing unit; and a bypass line branched off from an upper side of the second circulation line and combined with a lower side of the second circulation line.

Inventors:
LIM, Ji Hoon (102-804, Ilsung AptGunja-dong,Gwangjin-gu, Seoul 143-762, 143-762, KR)
Application Number:
KR2013/011350
Publication Date:
July 03, 2014
Filing Date:
December 09, 2013
Export Citation:
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Assignee:
DOOSAN INFRACORE CO., LTD. (7-11, Hwasu-dongDong-gu, Incheon 401-020, 401-020, KR)
International Classes:
F02M25/07; F01N3/10; F02D21/08
Domestic Patent References:
WO2012120347A12012-09-13
Foreign References:
JP2008303763A2008-12-18
KR20080005370A2008-01-11
US20110088674A12011-04-21
KR100765413B12007-10-09
Attorney, Agent or Firm:
HANBEOT PATENT & LAW FIRM (15th Fl. Salvation Army Bldg, 7 Chungjeong-ro,Seodaemun-gu, Seoul 120-013, 120-013, KR)
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