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:
Dec. 15, 2020
Filed:
Jun. 13, 2019
Mazda Motor Corporation, Hiroshima, JP;
Ryohei Gonda, Hiroshima, JP;
Koichi Yashiro, Hiroshima, JP;
MAZDA MOTOR CORPORATION, Hiroshima, JP;
Abstract
A connection passageis provided to connect an exhaust emission control catalyst and the particulate collection filter to each other, and partially has a small cross-sectional area portionthe flow passage cross-sectional area of which is smaller than an area of the transverse section of the particulate collection filter. The enlarged portionhaving a flow passage cross-sectional area enlarged to be approximately as large as the area of the transverse section of the particulate collection filter is formed at the connection portion with the particulate collection filter in the connection passage, and the guide wall portionis provided in the enlarged portionto allow the exhaust gas having passed through the small cross-sectional area portionto swirl along the peripheral wall of the enlarged portion