Exhaust system for an engine
US-12162562-B2 · Dec 10, 2024 · US
Passive valve and resonator assembly for vehicle exhaust system
US8955641B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8955641-B2 |
| Application number | US-201313852230-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 28, 2013 |
| Priority date | Nov 21, 2007 |
| Publication date | Feb 17, 2015 |
| Grant date | Feb 17, 2015 |
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Abstract
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An exhaust system includes first and second exhaust components with an inter-pipe that fluidly connects an outlet of the first exhaust component to an inlet of the second exhaust component. A passive valve is mounted within the inter-pipe. The second exhaust component defines an internal cavity that is at least partially packed with a high frequency absorption material and cooperates with the passive valve to effectively attenuate low and high frequency noise.
First claim
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What is claimed is: 1. A vehicle exhaust system comprising: a first resonator having a first inlet and a first outlet; a second resonator positioned downstream of the first resonator, wherein the second resonator has a housing that extends from a first housing end to second housing end to define a housing center axis, and wherein the housing defines a single chamber with an internal cavity having a second inlet and a second outlet, the internal cavity being packed with a high fr…
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- What does patent US8955641B2 cover?
- An exhaust system includes first and second exhaust components with an inter-pipe that fluidly connects an outlet of the first exhaust component to an inlet of the second exhaust component. A passive valve is mounted within the inter-pipe. The second exhaust component defines an internal cavity that is at least partially packed with a high frequency absorption material and cooperates with the p…
- Who is the assignee on this patent?
- Emcon Technologies Llc, Faurecia Emissions Control Technologies Usa Llc
- What technology area does this patent fall under?
- Primary CPC classification F01N1/02. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Feb 17 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).