Device for optional engaging and disengaging of a friction clutch for motor vehicles
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United States of America Patent
Stats
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Apr 26, 2005
Grant Date -
Mar 4, 2004
app pub date -
May 22, 2003
filing date -
May 23, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A device is disclosed for the optional engaging and disengaging of a friction clutch for motor vehicles with a preferably hydraulic actuating mechanism, such as a central disengaging device, which, in order to apply an actuating force, is operatively connected with the friction clutch via at least one actuating force transmission member, such as a release bearing, which is pre-stressed in the disengaging direction by means of a spring. The device also has a sensor device with a sensor for sensing a variable representative of the engaging respectively disengaging state of and/or the state of wear on the friction clutch. According to the invention, the force of the spring for pre-stressing the actuating force transmission member or of a spring arranged in parallel with it can be sensed using the sensor, as a variable representative of the disengaging and engaging state of and/or the state of wear on the friction clutch. As a result, a device is created in which a variable representative of the disengaging respectively engaging state of and/or the state of wear on the friction clutch can be sensed in a particularly simple manner.
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