Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD AND APPARATUS FOR PREFILL OF WET CLUTCHES
Document Type and Number:
WIPO Patent Application WO/2014/124985
Kind Code:
A3
Abstract:
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.

Inventors:
VERSTEYHE MARK R J (BE)
MAESSEN MARK M A (NL)
Application Number:
PCT/EP2014/052752
Publication Date:
October 09, 2014
Filing Date:
February 12, 2014
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
DANA BELGIUM NV (BE)
International Classes:
F16D48/02; F16D48/06
Domestic Patent References:
WO1989007541A11989-08-24
Foreign References:
US6328674B12001-12-11
US6789658B22004-09-14
US20050076958A12005-04-14
Attorney, Agent or Firm:
PFENNING, MEINIG & PARTNER GBR (Berlin, DE)
Download PDF: