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:
Apr. 02, 2024
Filed:
Mar. 31, 2023
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-Ken, JP;
Abstract
A catalyst device includes a catalyst carrier serving as a heating element that generates heat when energized. The catalyst device includes a guide pipe that guides exhaust into the case. The catalyst device includes a connecting pipe that connects the guide pipe to the case. The case has an end that is an insulative portion and projects further upstream, in the direction in which exhaust flows, from an end surface of the catalyst carrier. A temperature difference inducing structure, which induces a state in which the connecting pipe is relatively lower in temperature than the end of the case, includes a heat shield, encompassing an outer circumferential surface of the connecting pipe and having an opening in part of a portion opposing the outer circumferential surface of the connecting pipe, and a stay fixing the outer circumferential surface of the connecting pipe to an internal combustion engine.