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:
Aug. 18, 2015
Filed:
Sep. 06, 2011
Noriaki Kumagai, Susono, JP;
Mamoru Yoshioka, Susono, JP;
Noriaki Kumagai, Susono, JP;
Mamoru Yoshioka, Susono, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken, JP;
Abstract
An electric heating catalyst (EHC) in which a short circuit between a heat generation element and a case in EHC is suppressed. The EHC includes a heat generation element (catalyst carrier) electrically energized to generate heat; a case receiving the heat generation element; an insulating support member between the heat generation element and the case; a tubular inner pipe inserted into the insulating support member and located between the heat generation element and the case. The inner pipe has an end protruding into an exhaust gas from the insulating support member's end face, and the inner pipe has an electrically insulating layer formed on an entire surface, or the inner pipe is formed of an electrically insulating material; and an inner pipe heater supplied with electricity through a path different from a path through which electricity is supplied to the heat generation element, thereby heating the inner pipe's protrusion portion.