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Patent Searching and Data


Title:
EMISSION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2004150296
Kind Code:
A
Abstract:

To provide an emission control device for an internal combustion engine that prevents wasteful fuel consumption with an effective use of HC by using the HC adsorbed by an HC adsorbing material to control reaction of NOx.

In a low-load range such as a case of decelerating a vehicle, a second combustion mode is carried out to adsorb the increased HC in the exhaust gas to a HC adsorption layer of the emission control catalytic device. On the other hand, when a load increases with acceleration of the vehicle, a first combustion mode is carried out to desorb HC from the HC adsorption layer, wherein temperature rises with an increase of the load, to use the desorbed HC to control reaction of the NOx in the exhaust gas.


Inventors:
Watanabe, Tetsuya
Application Number:
JP2002000314109
Publication Date:
May 27, 2004
Filing Date:
October 29, 2002
Export Citation:
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Assignee:
MITSUBISHI MOTORS CORP
International Classes:
F02M25/07; B01D53/94; F01N3/08; F01N3/24; F01N3/28; F02D21/08; F02D41/02; F02D43/00; F02D45/00; (IPC1-7): F02D21/08; B01D53/94; F01N3/08; F01N3/24; F01N3/28; F02D41/02; F02D43/00; F02D45/00; F02M25/07
Attorney, Agent or Firm:
長門 侃二
山中 純一