Valve timing adjustment system and electronic control device
US-2024167399-A1 · May 23, 2024 · US
Dual phasers assembled concentrically on a concentric camshaft system
US9080474B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9080474-B2 |
| Application number | US-201213981976-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 25, 2012 |
| Priority date | Feb 9, 2011 |
| Publication date | Jul 14, 2015 |
| Grant date | Jul 14, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A variable cam timing phaser for an internal combustion engine having a concentric camshaft can include a stator ( 14 ) having an axis of rotation. An outer rotor ( 20 ) can rotate independently relative to the axis of rotation of the stator ( 14 ). A combination of an outer vane ( 22 ) and cavity ( 20 a ) can be associated with the outer rotor ( 20 ) to define first and second outer variable volume working chambers ( 20 b, 20 c ). A radially inner located rotor ( 30 ) can rotate relative to the axis of rotation and independently of both the stator ( 14 ) and the outer rotor ( 20 ). A combination of an inner vane ( 32 ) and a cavity ( 30 a ) can be associated with the inner rotor ( 20 ) to define first and second inner variable volume working chambers ( 30 b, 30 c ). When the first and second, outer and inner chambers ( 20 b, 30 b, 20 c, 30 c ) selectively communicate with a source of pressurized fluid, phase orientation of the outer and inner rotors ( 20, 30 ) with respect to one another and with respect to the stator ( 14 ) is facilitated.
First claim
Opening claim text (preview).
What is claimed is: 1. A variable cam timing phaser ( 10 ) for an internal combustion engine having a concentric camshaft ( 12 ) comprising: a stator ( 14 ) having an axis of rotation and a wall portion ( 14 a , 14 f ) connected to the stator ( 14 ); an outer rotor ( 20 ) rotatable relative to the axis of rotation of the stator ( 14 ) independently of the stator ( 14 ); a radially outer located vane-type hydraulic coupling ( 40 ) including a combination of an outer vane (…
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Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
- F01L1/3442Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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- What does patent US9080474B2 cover?
- A variable cam timing phaser for an internal combustion engine having a concentric camshaft can include a stator ( 14 ) having an axis of rotation. An outer rotor ( 20 ) can rotate independently relative to the axis of rotation of the stator ( 14 ). A combination of an outer vane ( 22 ) and cavity ( 20 a ) can be associated with the outer rotor ( 20 ) to define first and second outer variable…
- Who is the assignee on this patent?
- Wigsten Mark, Marsh Michael W, Borgwarner Inc
- 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 Jul 14 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).