Exhaust muffler
US-2016376953-A1 · Dec 29, 2016 · US
Motorcycle
US8939255B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8939255-B2 |
| Application number | US-201314063057-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 25, 2013 |
| Priority date | May 31, 2013 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A motorcycle includes a second silencer separate from a first silencer. A first exhaust pipe connects an exhaust port and the first silencer. A connecting pipe portion connects the first silencer and the second silencer. A first expansion chamber of the first silencer is located downstream from the first exhaust pipe in the exhaust flow. A second expansion chamber of the first silencer is partitioned from the first expansion chamber. The second expansion chamber is located downstream from the first expansion chamber. The connecting pipe portion includes a second exhaust pipe, an exhaust control valve, and a third exhaust pipe. The second exhaust pipe is connected to the first expansion chamber. The exhaust control valve is disposed in the second exhaust pipe. The exhaust control valve controls the flow passage area of the second exhaust pipe. The third exhaust pipe is connected to the second expansion chamber.
First claim
Opening claim text (preview).
What is claimed is: 1. A motorcycle comprising: an engine including an exhaust port; a first silencer; a second silencer separate from the first silencer; a first exhaust pipe connecting the exhaust port and the first silencer; and a connecting pipe portion connecting the first silencer and the second silencer; wherein the first silencer includes: a first expansion chamber to allow exhaust to expand, the first expansion chamber being located downstream of the first exh…
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Frequently asked questions
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- What does patent US8939255B2 cover?
- A motorcycle includes a second silencer separate from a first silencer. A first exhaust pipe connects an exhaust port and the first silencer. A connecting pipe portion connects the first silencer and the second silencer. A first expansion chamber of the first silencer is located downstream from the first exhaust pipe in the exhaust flow. A second expansion chamber of the first silencer is parti…
- Who is the assignee on this patent?
- Yamaha Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F01N1/08. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jan 27 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).