Exhaust gas purification device for internal combustion engine
AssigneeMitsubishi Jidosha Kogyo Kabushiki Kaisha
InventorsHiroshi Tanada, Maynko Suwa, Koichi Taniyama
Life of this patent
Estimating the term…
Abstract
An exhaust gas purification device for an internal combustion engine, provided in an exhaust passage of the internal combustion engine, includes: a filter-shape carrier adapted to trap particulate matter in exhaust gas; and an oxidation catalyst supported on the filter-shape carrier and comprising: a particulate oxygen storage material; and an oxygen ion conductive material supported around the oxygen storage material in surface contact therewith.
Claims5
An exhaust gas purification device for an internal combustion engine, provided in an exhaust passage of the internal combustion engine, comprising:
- a filter-shape carrier adapted to trap particulate matter in exhaust gas;
- and
- an oxidation catalyst supported on the filter-shape carrier and comprising:
- a particulate oxygen storage material;
- and
- an oxygen ion conductive material supported around the oxygen storage material in surface contact therewith,
- wherein the oxygen ion conductive material has a film form covering a periphery of the oxygen storage material, and
- wherein a crack reaching the oxygen storage material in the oxygen ion conductive material is formed on the oxygen ion conductive material.
Dependencies are inferred from the claim text.