Title:
INTERNAL COMBUSTION ENGINE AND CONTROL METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2013/088923
Kind Code:
A1
Abstract:
This internal combustion engine is provided with: a urea injector (5) that adds urea water (Ur) to the exhaust gas (Ga) on the upstream side of the SCR catalyst (4) of the exhaust gas (Ga) post-treatment device (1); and a mixer unit (13) through which passes exhaust gas (Ga) and urea water (Ur) added to the exhaust gas (Ga) while the two components are mixed when a throttle valve (10) is opened, is provided to the throttle valve (10) of the exhaust throttle (6), which opens and closes the exhaust passage (2) provided between the urea injector (5) and the urea SCR catalyst (4). As a result of this configuration, the mixing and evaporation of the urea water (Ur) added to the exhaust gas is promoted, and the temperature of the urea SCR (4) is maintained.
Inventors:
NAGAOKA DAIJI (JP)
KORENAGA TOMOHIRO (JP)
YUZA HIROYUKI (JP)
NAKADA TERUO (JP)
KORENAGA TOMOHIRO (JP)
YUZA HIROYUKI (JP)
NAKADA TERUO (JP)
Application Number:
PCT/JP2012/080069
Publication Date:
June 20, 2013
Filing Date:
November 20, 2012
Export Citation:
Assignee:
ISUZU MOTORS LTD (JP)
International Classes:
F01N3/24; F01N3/08
Foreign References:
| JP2010180780A | 2010-08-19 | |||
| JP2010038020A | 2010-02-18 | |||
| JP2007315339A | 2007-12-06 | |||
| JP2005291088A | 2005-10-20 | |||
| JP2012047119A | 2012-03-08 |
Attorney, Agent or Firm:
Seiryu Patent Professional Corporation et al. (JP)
Clear stream international patent business corporation (JP)
Clear stream international patent business corporation (JP)
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Claims:
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