Exhaust treatment method and apparatus having particulate filters and scr
US-2024159174-A1 · May 16, 2024 · US
Exhaust gas purification system for an internal combustion engine
US8943802B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8943802-B2 |
| Application number | US-200913514752-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 8, 2009 |
| Priority date | Dec 8, 2009 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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An exhaust gas purification system for an internal combustion engine, which is provided with: a selective reduction type catalyst arranged in an exhaust passage of the internal combustion engine; a low pressure EGR mechanism that is equipped with a low pressure EGR passage for introducing a part of an exhaust gas flowing through a portion of the exhaust passage downstream of a turbine of a centrifugal supercharger to a portion of an intake passage upstream of a compressor as a low pressure EGR gas, and a low pressure EGR valve for changing a channel cross section of the low pressure EGR passage; a supply device.
First claim
Opening claim text (preview).
The invention claimed is: 1. An exhaust gas purification system for an internal combustion engine comprising: a low pressure EGR mechanism that is equipped with a low pressure EGR passage which serves to introduce a part of an exhaust gas flowing through a portion of an exhaust passage downstream of a turbine of a centrifugal supercharger to a portion of an intake passage upstream of a compressor as a low pressure EGR gas, and a low pressure EGR valve which serves to change a chan…
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Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Cross-Sectional Technologies · mapped topic
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- What does patent US8943802B2 cover?
- An exhaust gas purification system for an internal combustion engine, which is provided with: a selective reduction type catalyst arranged in an exhaust passage of the internal combustion engine; a low pressure EGR mechanism that is equipped with a low pressure EGR passage for introducing a part of an exhaust gas flowing through a portion of the exhaust passage downstream of a turbine of a cent…
- Who is the assignee on this patent?
- Kawaguchi Bungo, Oda Tomihisa, Onishi Tomomi, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification F01N3/208. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Feb 03 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).