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.

Date of Patent:
Apr. 11, 2023

Filed:

May. 22, 2019
Applicants:

Nissan Motor Co., Ltd., Yokohama, JP;

Renault S.a.s., Boulogne-Billancourt, FR;

Inventors:

Takayuki Hamamoto, Kanagawa, JP;

Hirofumi Tsuchida, Kanagawa, JP;

Daisuke Takaki, Kanagawa, JP;

Yuta Ishigaki, Kanagawa, JP;

Assignees:

NISSAN MOTOR CO., LTD., Yokohama, JP;

RENAULT S. A. S., Boulogne-Billancourt, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/022 (2006.01); B01D 53/94 (2006.01); F01N 3/20 (2006.01); F01N 3/28 (2006.01);
U.S. Cl.
CPC ...
B01D 53/9454 (2013.01); B01D 53/945 (2013.01); F01N 3/0222 (2013.01); F01N 3/2013 (2013.01); F01N 3/2825 (2013.01); B01D 2255/915 (2013.01);
Abstract

A catalytic converter is provided with: an inlet-side diffuser part; an outlet-side diffuser part; a case including an upstream-side cylindrical part and a downstream-side cylindrical part; an inner liner provided in the upstream-side cylindrical part; a first catalyst retained inside the inner liner; and a second catalyst retained inside the downstream-side cylindrical part. An end face of the second catalyst faces a peripheral surface of the inner liner. An annular flow path is provided between the upstream-side cylindrical part and the inner liner, and the first catalyst is insulated from heat by the annular flow path. A part of exhaust flows into the second catalyst via the annular flow path.


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