Title:
【発明の名称】触媒システムにおける改良
Document Type and Number:
Japanese Patent JP2002539352
Kind Code:
A
Abstract:
A system and method for the after-treatment of exhaust gases from an internal combustion engine is provided. The system includes a first catalyst disposed downstream of the engine, through which the exhaust gases flow and which is effective to catalyze a shift reaction between carbon monoxide and water, or which is exhaust gas. The system also includes an oxygen source disposed between the first catalyst and a hydrocarbon trap, and downstream from all of those a three-way catalyst to catalytically oxidize hydrocarbons and carbon monoxide to reduce noxious emissions.
Inventors:
Martin, Vincent, Twig
Application Number:
JP2000604106A
Publication Date:
November 19, 2002
Filing Date:
February 02, 2000
Export Citation:
Assignee:
JOHNSON MATTHEY PUBLIC LIMITED COMPANY
International Classes:
B01D53/94; F01N3/08; F01N3/10; F01N3/20; F01N3/22; F01N3/24; F02D41/08; F01N13/02; (IPC1-7): F01N3/20; B01D53/94; F01N3/10; F01N3/22; F01N3/24; F02D41/08
Attorney, Agent or Firm:
Kenji Yoshitake (4 others)