Exhaust gas purification system
US-9546586-B2 · Jan 17, 2017 · US
Exhaust treatment device
US9498750B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9498750-B2 |
| Application number | US-201214369083-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 25, 2012 |
| Priority date | Dec 26, 2011 |
| Publication date | Nov 22, 2016 |
| Grant date | Nov 22, 2016 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
Provided is an exhaust treatment device including a cylindrical shell into which an exhaust gas is introduced, and a flow channel pipe that penetrates through the cylindrical shell. One end of the flow channel pipe is connected to an exhaust-gas flow path of an internal combustion engine, and the exhaust gas is introduced into the cylindrical shell via the flow channel pipe. A pair of through holes, in which the flow channel pipe is disposed, are provided in a pipe wall of the cylindrical shell. A lid member configured to occlude one of the through holes is welded to the other end of the flow channel pipe so as to occlude an opening in the other end. The lid member is welded to the pipe wall so that the one of the pair of through holes is occluded by the lid member.
First claim
Opening claim text (preview).
The invention claimed is: 1. An exhaust treatment device that treats an exhaust gas from an internal combustion engine, the exhaust treatment device comprising: a cylindrical shell into which the exhaust gas is introduced; and a flow channel pipe inserted in such a manner as to penetrate through the cylindrical shell, wherein the exhaust treatment device is configured such that one end of the flow channel pipe is connected to an exhaust-gas flow path of the internal combustion engine and the exhaust gas flowing through the exhaust-gas flow path is introduced into the cylindrical shell via the flow channel pipe, wherein a pair of through holes, in which the flow channel pipe is disposed, are provided in a pipe wall of the cylindrical shell, the pair of through holes having a larger diameter than an outer diameter of the flow channel pipe, wherein a lid member configured to occlude one of the through holes is welded to an other end of the flow channel pipe so as to occlude an opening in the other end of the flow channel pipe, wherein the lid member is welded to an outer surface of the pipe wall of the cylindrical shell so that the one of the through holes is occluded by the lid member, and wherein a clearance between one of the through holes and the flow channel pipe is occluded by the lid member. 2. The exhaust treatment device according to claim 1 , wherein the lid member includes a concave portion that receives the other end of the flow channel pipe. 3. The exhaust treatment device according to claim 1 , wherein the lid member includes a convex portion that is inserted into the opening in the other end of the flow channel pipe. 4. The exhaust treatment device according to claim 1 , wherein the flow channel pipe is arranged in such a manner as to obliquely cross the cylindrical shell.
Assignees
Inventors
Classifications
by welding or brazing · CPC title
the axis of inlet or outlet tubes being other than the longitudinal axis of apparatus · CPC title
characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles · CPC title
Tubes being perforated · CPC title
with exhaust silencers in a single housing · CPC title
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- What does patent US9498750B2 cover?
- Provided is an exhaust treatment device including a cylindrical shell into which an exhaust gas is introduced, and a flow channel pipe that penetrates through the cylindrical shell. One end of the flow channel pipe is connected to an exhaust-gas flow path of an internal combustion engine, and the exhaust gas is introduced into the cylindrical shell via the flow channel pipe. A pair of through h…
- Who is the assignee on this patent?
- Futaba Ind Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F01N3/2885. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Nov 22 2016 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).