Charge forming system for combustion engine
US-11131273-B2 · Sep 28, 2021 · US
Automatic choke apparatus for engine
US8978622B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8978622-B2 |
| Application number | US-201213423438-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 19, 2012 |
| Priority date | Mar 29, 2011 |
| Publication date | Mar 17, 2015 |
| Grant date | Mar 17, 2015 |
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Abstract
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There is provided an automatic choke apparatus for an engine. A bimetal that is coupled to a choke valve of an intake system is provided in the vicinity of an outer wall face of a muffler. The muffler is divided into a first expansion chamber and a second expansion chamber across a partition plate. An exhaust hole that allows the expansion chambers to be communicated with each other is formed at the lower part of the partition plate. An exhaust gas is guided from the upstream first expansion chamber toward the downstream second expansion chamber through the exhaust hole. A bypass hole is formed at an upper part of the partition plate in such a manner that that the expansion chambers are communicated with each other as bypassing the exhaust hole. The bypass hole is open to the vicinity of the outer wall face opposite to the bimetal.
First claim
Opening claim text (preview).
What is claimed is: 1. An automatic choke apparatus for an engine that operates a choke valve in an intake system by utilizing a heat of an exhaust system, the automatic choke apparatus comprising: a bimetal coupled to the choke valve, the bimetal being disposed in a vicinity of an outer wall face of a muffler that is mounted to the engine; a plurality of expansion chambers defined in the muffler; a connection channel that connects a number of the plurality of expansion chambe…
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- What does patent US8978622B2 cover?
- There is provided an automatic choke apparatus for an engine. A bimetal that is coupled to a choke valve of an intake system is provided in the vicinity of an outer wall face of a muffler. The muffler is divided into a first expansion chamber and a second expansion chamber across a partition plate. An exhaust hole that allows the expansion chambers to be communicated with each other is formed a…
- Who is the assignee on this patent?
- Furuya Akira, Fuji Heavy Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification F02M1/10. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Mar 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).