Valve timing control apparatus

US8991348B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8991348-B2
Application numberUS-201414203116-A
CountryUS
Kind codeB2
Filing dateMar 10, 2014
Priority dateMar 11, 2013
Publication dateMar 31, 2015
Grant dateMar 31, 2015

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  2. Abstract

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  5. First independent claim

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Abstract

Official abstract text for this publication.

A valve timing control apparatus includes a driving-side rotation member, a driven-side rotation member, a first lock mechanism selectively achieving a first lock state in which a relative rotation phase of the driven-side rotation member relative to the driving-side rotation member is locked at an intermediate lock phase and a first lock release state, and a second lock mechanism selectively achieving a second lock state in which the relative rotation phase is locked at one of a most advanced angle phase and a most retarded angle phase and a second lock release state, the driven-side rotation member being rotatable relative to the driving-side rotation member by a first clearance angle in the first lock state, the driven-side rotation member being rotatable relative to the driving-side rotation member by a second clearance angle in the second lock state, the second clearance angle being smaller than the first clearance angle.

First claim

Opening claim text (preview).

The invention claimed is: 1. A valve timing control apparatus comprising: a driving-side rotation member rotating in synchronization with a crankshaft of an internal combustion engine and including an axis; a driven-side rotation member arranged at a radially inner side of the driving-side rotation member and rotating about the axis of the driving-side rotation member in synchronization with a camshaft for opening and closing a valve of the internal combustion engine; a fluid…

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What does patent US8991348B2 cover?
A valve timing control apparatus includes a driving-side rotation member, a driven-side rotation member, a first lock mechanism selectively achieving a first lock state in which a relative rotation phase of the driven-side rotation member relative to the driving-side rotation member is locked at an intermediate lock phase and a first lock release state, and a second lock mechanism selectively a…
Who is the assignee on this patent?
Aisin Seiki
What technology area does this patent fall under?
Primary CPC classification F01L1/3442. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Mar 31 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).