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:
Sep. 06, 2022
Filed:
Mar. 28, 2019
Marelli Corporation, Saitama, JP;
Tooru Hisanaga, Saitama, JP;
Daisuke Sugaya, Saitama, JP;
Tomoyuki Igarashi, Saitama, JP;
Hitoshi Shimonosono, Saitama, JP;
Marelli Corporation, Saitama, JP;
Abstract
An exhaust purification device has a catalytic converter provided with: an outer cylinder welded at the upstream end portion to an exhaust gas inlet of an inlet-side flange and welded at the downstream end portion to an exhaust gas outlet of the outlet-side flange. An inner cylinder has an upstream end portion held by the upstream side portion of the outer cylinder with no gap and has a downstream end portion disposed at the downstream side of the outer cylinder with a gap, the inner cylinder housing a catalyst support. An opening end is formed at the downstream end portion of the inner cylinder with a gap with respect to the outer cylinder, and a gas layer is formed by the exhaust gas having entered from the exhaust gas inlet and convected to an upstream side between the outer cylinder and the inner cylinder.