EXHAUST PURIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE

WIPO Patent Application WO/2015/004779

A1

In order to increase the efficiency of NH3 generation, the present invention is equipped with: an NH3 generation catalyst that generates NH3 from NOx and H2 when the air-fuel ratio is rich; an in-cylinder injection valve that injects fuel into an air cylinder; and a control device that sets the period for fuel injection from the in-cylinder injection valve to the second half of the compression stroke when the air-fuel ratio is to be enriched and the temperature of the NH3 generation catalyst is within a first prescribed range, and sets the period for fuel injection from the in-cylinder injection valve to the first half of the intake stroke when the air-fuel ratio is to be enriched and the temperature of the NH3 generation catalyst is within a second prescribed range which is higher than the first prescribed range.

JPH06312139	EXHAUST GAS PURIFYING CATALYST AND PURIFYING PROCESS FOR NITROGEN OXIDE
JPH10296086	EXHAUST GAS-PURIFYING CATALYST
JP2014523844	Use in the field of the constituent consisting of the Seria * zirconia mixed oxide which reduction nature increased, a manufacturing method, and a catalyst reaction

SUZUKI KOTARO (JP)

PCT/JP2013/069020

January 15, 2015

July 11, 2013

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TOYOTA MOTOR CO LTD (JP)
SUZUKI KOTARO (JP)

B01D53/94; F02D41/04; F01N3/08; F02D45/00

JP2008121575A	2008-05-29
JP2002235594A	2002-08-23
JP2012127295A	2012-07-05
JP2006183477A	2006-07-13
JP2003056392A	2003-02-26
JP2002235594A	2002-08-23
JP2006299886A	2006-11-02
JP2009215960A	2009-09-24
JP2006009702A	2006-01-12
JP2012127295A	2012-07-05
JP2010007621A	2010-01-14

See also references of EP 3020948A4

KAWAGUCHI, Yoshiyuki et al. (JP)
Yoshiyuki Kawaguchi (JP)

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