The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 2021
Filed:
May. 01, 2020
Applicant:
Denso Corporation, Kariya, JP;
Inventors:
Yoichi Kadota, Kariya, JP;
Yasushi Takayama, Kariya, JP;
Assignee:
DENSO CORPORATION, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/021 (2006.01); F01N 3/28 (2006.01);
U.S. Cl.
CPC ...
F01N 3/2803 (2013.01); F01N 3/021 (2013.01); F01N 2330/02 (2013.01); F01N 2370/02 (2013.01);
Abstract
The exhaust gas purification device of the present embodiment is provided in an exhaust gas flow path of an internal combustion engine. The exhaust gas purification device includes a honeycomb catalyst and a PM trapping filter. The honeycomb catalyst is formed by supporting a catalyst on a first substrate which is made of a promoter and has a honeycomb structure. The PM trapping filter is located on the exhaust gas downstream side of the honeycomb catalyst and includes a second substrate having a honeycomb structure, configured to be capable of trapping PM.