Preignition restraining device
US-2015361914-A1 · Dec 17, 2015 · US
Valve opening-closing timing control device and method for attaching front member thereof
US9103239B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9103239-B2 |
| Application number | US-201214353641-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 10, 2012 |
| Priority date | Dec 27, 2011 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A valve opening-closing timing control device includes: a driving rotating body that rotates synchronously with a crankshaft; a following rotating body that rotates integrally with a cam shaft; a phase control mechanism that controls changing of relative rotational phases of the driving and following rotating bodies; a torsion coil spring engaged by a front member of the driving rotating body and by the following driving body, and biases the following rotating body in an advance/retarded direction with respect to the driving rotating body. The front member includes multiple bearing surfaces to be attached with countersunk head screws, and an engaging part engaging an end of the torsion coil spring with the torsion coil spring in a twisted state. The engaging part includes a mounting part for a tool with which the end of the torsion coil spring is moved in a direction increasing torsion strength of the torsion coil spring.
First claim
Opening claim text (preview).
The invention claimed is: 1. A valve opening-closing timing control device comprising: a driving rotating body that rotates synchronously with a crankshaft of an internal combustion engine; a following rotating body that rotates integrally with a cam shaft of the internal combustion engine on the same rotation axis as the driving rotating body; a phase control mechanism that controls changing of relative rotational phases of the driving rotating body and the following rotating…
Assignees
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Classifications
- F01L1/34Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US9103239B2 cover?
- A valve opening-closing timing control device includes: a driving rotating body that rotates synchronously with a crankshaft; a following rotating body that rotates integrally with a cam shaft; a phase control mechanism that controls changing of relative rotational phases of the driving and following rotating bodies; a torsion coil spring engaged by a front member of the driving rotating body a…
- Who is the assignee on this patent?
- Aisin Seiki
- What technology area does this patent fall under?
- Primary CPC classification F01L1/34. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Aug 11 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).