SCR treatment of engine exhaust gases using temperature control
US-9222384-B2 · Dec 29, 2015 · US
Electric heating catalyst
US9109490B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9109490-B2 |
| Application number | US-201114342852-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 6, 2011 |
| Priority date | Sep 6, 2011 |
| Publication date | Aug 18, 2015 |
| Grant date | Aug 18, 2015 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
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.
First claim
Opening claim text (preview).
The invention claimed is: 1. An electric heating catalyst comprising: a heat generation element that is electrically energized to generate heat so that a catalyst is heated by the generation of heat; a case that receives said heat generation element therein; an insulating support member that is arranged between said heat generation element and said case for supporting said heat generation element and insulating electricity; an inner pipe that is a tubular member which is ins…
Assignees
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Classifications
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
- F01N3/2013Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US9109490B2 cover?
- 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 ins…
- Who is the assignee on this patent?
- Kumagai Noriaki, Yoshioka Mamoru, Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F01N3/2013. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Aug 18 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).