Torsional Vibration Damping Arrangement For The Drive Train Of A Vehicle
US-2015377321-A1 · Dec 31, 2015 · US
Torque converter clutch with low back pressure
US9309956B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9309956-B2 |
| Application number | US-201213595565-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 27, 2012 |
| Priority date | Sep 4, 2011 |
| Publication date | Apr 12, 2016 |
| Grant date | Apr 12, 2016 |
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- Title
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Abstract
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A torque converter includes an impeller shell and a backing plate defining at least a portion of a first hydraulic chamber, a cover and a piston plate defining at least a portion of a second hydraulic chamber, and a third hydraulic chamber. The third chamber is sealed from the first and second hydraulic chambers such that a hydraulic flow between the third chamber and the other chambers is at least restricted. In an example embodiment, the first chamber is for being pressurized to prevent cavitation in the turbine, stator, or impeller, the second or third chamber is for being pressurized to engage the lockup clutch, and the other of the second or third chamber is for being de-pressurized to reduce a back pressure on the lockup clutch piston plate.
First claim
Opening claim text (preview).
What we claim is: 1. A torque converter comprising: an impeller shell and a backing plate defining at least a portion of a first hydraulic chamber; a cover and a piston plate defining at least a portion of a second hydraulic chamber; the backing plate, sealed to the cover, defining at least a portion of a third hydraulic chamber, sealed from the first and second hydraulic chambers such that a hydraulic flow between the third chamber and the other chambers is at least restricte…
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Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
- F16H45/02Primary
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 US9309956B2 cover?
- A torque converter includes an impeller shell and a backing plate defining at least a portion of a first hydraulic chamber, a cover and a piston plate defining at least a portion of a second hydraulic chamber, and a third hydraulic chamber. The third chamber is sealed from the first and second hydraulic chambers such that a hydraulic flow between the third chamber and the other chambers is at l…
- Who is the assignee on this patent?
- Lindemann Patrick, Avins David, Schaeffler Technologies Ag
- What technology area does this patent fall under?
- Primary CPC classification F16H45/02. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Apr 12 2016 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).