Exhaust gas aftertreatment mixer
US-12163456-B2 · Dec 10, 2024 · US
Reconfigurable mixer for an exhaust aftertreatment system and method of using the same
US8935918B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8935918-B2 |
| Application number | US-76623910-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 23, 2010 |
| Priority date | Apr 23, 2010 |
| Publication date | Jan 20, 2015 |
| Grant date | Jan 20, 2015 |
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- Title
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Abstract
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A mixer for an exhaust aftertreatment system, such as a diesel engine exhaust aftertreatment system, is disclosed. The mixer includes a body portion that is configured to be disposed in an exhaust conduit upstream of an exhaust aftertreatment device and an airfoil portion that is disposed on the body portion and reversibly movable between a deployed position and a retracted position, wherein in the deployed position the airfoil portion provides a deployed resistance to an exhaust gas flow and in the retracted position provides a retracted resistance, and the deployed resistance is greater than the retracted resistance. The mixer preferably comprises a two-way shape memory alloy, particularly a high temperature, oxidation resistant shape memory alloy. An exhaust aftertreatment system employing the mixer is also disclosed, as well as a method of using the same.
First claim
Opening claim text (preview).
What is claimed is: 1. A mixer for an exhaust aftertreatment system, comprising: a body portion that is configured to be disposed in an exhaust conduit of an exhaust aftertreatment system upstream of an exhaust aftertreatment device, the mixer body portion comprising a band having a plurality of radially-extending, circumferentially-spaced lobes about a mixer axis; and an airfoil portion comprising a two-way shape memory alloy, the airfoil portion disposed on the body portion an…
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Operations & Transport · mapped topic
- F01N3/2892Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US8935918B2 cover?
- A mixer for an exhaust aftertreatment system, such as a diesel engine exhaust aftertreatment system, is disclosed. The mixer includes a body portion that is configured to be disposed in an exhaust conduit upstream of an exhaust aftertreatment device and an airfoil portion that is disposed on the body portion and reversibly movable between a deployed position and a retracted position, wherein in…
- Who is the assignee on this patent?
- Vosz Adam, Gm Global Tech Operations Inc
- What technology area does this patent fall under?
- Primary CPC classification F01N3/2892. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jan 20 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).