Title:
EXHAUST EMISSION CONTROL SYSTEM FOR ENGINE
Document Type and Number:
Japanese Patent JP2008232067
Kind Code:
A
Abstract:
To effectively purify exhaust gas so as to realize a stable purifying effect of a catalyst.
Pure gasoline is supplied to an injector 14 for combustion of the engine 10 and ethanol-mixed gasoline having a predetermined concentration of ethanol is supplied to a reforming injector 25. When it is judged that the temperature of the catalyst exceeds an upper temperature limit, a destination of fuel supply is switched by controlling first and second valves 42, 44, and the ethanol-mixed gasoline and the pure gasoline are respectively supplied to the injector 14 for combustion and the reforming injector 25 for a predetermined period of time.
Inventors:
UCHIDA DAISUKE
Application Number:
JP2007075088A
Publication Date:
October 02, 2008
Filing Date:
March 22, 2007
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F01N3/20; B01D53/86; F01N3/24; F02D19/06; F02M27/02
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