Drive force distribution device for automobile
US-2016355088-A1 · Dec 8, 2016 · US
Method and apparatus for prefill of wet clutches
US9109645B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9109645-B2 |
| Application number | US-201414178390-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 12, 2014 |
| Priority date | Feb 13, 2013 |
| Publication date | Aug 18, 2015 |
| Grant date | Aug 18, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A method and an apparatus for controlling a wet clutch are provided. The clutch comprises a pump, a piston, and a fluid conduit. The pump provides a housing with a hydraulic fluid. The piston is movably disposed in the housing and is movable into an extended position by a preloaded spring and into a retracted position by applying an engagement pressure on the piston by the hydraulic fluid. In the retracted position torque is transmittable through the clutch. The fluid conduit connects the pump and the housing. The method comprises the steps of prefilling the clutch by applying a prefill pressure on the piston, prefilling the fluid conduit line and the housing with the hydraulic fluid. The prefill pressure is lower than the engagement pressure required to move the piston into the retracted position.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for controlling a wet clutch, the clutch comprising: a pump for providing a housing with a hydraulic fluid, a piston being movably disposed in the housing, the piston being movable into an extended position by a preloaded spring and into a retracted position by applying an engagement pressure on the piston by the hydraulic fluid, wherein in the retracted position torque is transmittable through the clutch, a fluid conduit connecting the pump and…
Assignees
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Classifications
- F16D25/06Primary
Mechanical Engineering · mapped topic
- F16D48/066Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US9109645B2 cover?
- A method and an apparatus for controlling a wet clutch are provided. The clutch comprises a pump, a piston, and a fluid conduit. The pump provides a housing with a hydraulic fluid. The piston is movably disposed in the housing and is movable into an extended position by a preloaded spring and into a retracted position by applying an engagement pressure on the piston by the hydraulic fluid. In t…
- Who is the assignee on this patent?
- Spicer Off Highway Belgium Nv, Dana Belgium Nv
- What technology area does this patent fall under?
- Primary CPC classification F16D25/06. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Aug 18 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).