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:
Jul. 16, 2024
Filed:
Apr. 11, 2022
Akemi Sato, Toyota, JP;
Takeshi Hirabayashi, Toyota, JP;
Koji Sugiura, Toyota, JP;
Keisuke Murawaki, Kakegawa, JP;
Takaya Ota, Kakegawa, JP;
Masatoshi Ikebe, Kakegawa, JP;
Kohei Takasaki, Kakegawa, JP;
Takeshi Morishima, Kakegawa, JP;
Akemi Sato, Toyota, JP;
Takeshi Hirabayashi, Toyota, JP;
Koji Sugiura, Toyota, JP;
Keisuke Murawaki, Kakegawa, JP;
Takaya Ota, Kakegawa, JP;
Masatoshi Ikebe, Kakegawa, JP;
Kohei Takasaki, Kakegawa, JP;
Takeshi Morishima, Kakegawa, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
CATALER CORPORATION, Kakegawa, JP;
Abstract
An exhaust gas purification device suppresses a pressure loss increase and includes a honeycomb substrate and inflow cell side catalyst layer. The substrate includes a porous partition wall defining several cells extending from an inflow side end surface to an outflow side end surface. The cells include an inflow and outflow cell adjacent across the wall. The inflow cell has an open inflow side end and sealed outflow side end. The outflow cell has a sealed inflow side end and open outflow side end. The catalyst layer is on an inflow cell side surface in an region extending from the inflow side end positioned 10% or more of the partition wall length. At this position, a filled portion of the inflow cell side catalyst layer pores are 40% or less. The pores are present to a depth of 50% of a thickness of the partition wall.