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:
May. 30, 2023
Filed:
May. 01, 2020
Koji Sugiura, Toyota, JP;
Hiromasa Nishioka, Toyota, JP;
Naoto Miyoshi, Toyota, JP;
Akemi Sato, Toyota, JP;
Masatoshi Ikebe, Kakegawa, JP;
Ryota Nakashima, Kakegawa, JP;
Yasutaka Nomura, Kakegawa, JP;
Hirotaka Ori, Kakegawa, JP;
Koji Sugiura, Toyota, JP;
Hiromasa Nishioka, Susono, JP;
Naoto Miyoshi, Nagoya, JP;
Akemi Sato, Toyota, JP;
Masatoshi Ikebe, Kakegawa, JP;
Ryota Nakashima, Kakegawa, JP;
Yasutaka Nomura, Kakegawa, JP;
Hirotaka Ori, Kakegawa, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
CATALER CORPORATION, Kakegawa, JP;
Abstract
An exhaust gas purification device that allows suppressing an increase in pressure loss is provided. The exhaust gas purification device of the present disclosure includes a honeycomb substrate and an inflow cell side catalyst layer. The substrate includes a porous partition wall which defines inflow cells and outflow cells extending from an inflow side end to an outflow side end. The inflow cell side catalyst layer is disposed on a surface on the inflow cell side in an inflow cell side catalyst region from an inflow side end to a position close to an outflow side end of the partition wall. The permeability of a portion including an outflow side region from the position to the outflow side end of the partition wall is higher than a gas permeability of a portion including the inflow cell side catalyst region of the partition wall and the inflow cell side catalyst layer.