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Title:
EXHAUST PURIFICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/145234
Kind Code:
A1
Abstract:
Provided is an exhaust purification system which is capable of increasing the reduction amount of NOx. This exhaust purification system is provided with: an exhaust passage (10) in which an exhaust gas flows; a selective reduction catalyst (43) which is disposed in the exhaust passage (10); an addition valve (36) which is positioned in the upstream of the selective reduction catalyst (43) in the exhaust passage (10); a connection passage (38) which is connected to the addition valve (36), and in which a urea water flows toward the addition valve (36); and a burner (20) which is positioned in the upstream of the addition valve (36) in the exhaust passage (10), and which uses a part of the space within the exhaust passage (10) as a combustion space (28) of a fuel. The connection passage (38) comprises a heating part (41) that passes through the combustion space (28).

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Inventors:
SATO SHINYA (JP)
HOSOYA MITSURU (JP)
TAKAKURA TAKASHI (JP)
Application Number:
PCT/JP2016/055051
Publication Date:
August 31, 2017
Filing Date:
February 22, 2016
Export Citation:
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Assignee:
HINO MOTORS LTD (JP)
International Classes:
F01N3/08
Domestic Patent References:
WO2006057305A12006-06-01
Foreign References:
JP2005507985A2005-03-24
JP2012082804A2012-04-26
US20150052878A12015-02-26
Attorney, Agent or Firm:
ONDA, Makoto et al. (JP)
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