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US 5,857,547 AGranted
Annular pressure plate for a friction clutch, especially for a motor vehicle
AssigneeValeo
InventorLaurent Dequesnes
Life of this patent
Estimating the term…
Abstract
A pressure plate for a dry friction clutch has a central hole with a set of ventilating fins formed on its inner periphery.
Claims6
A dry friction clutch including:
- a pressure plate;
- a reaction plate;
- a friction disc interposed between the pressure plate and reaction plates;
- means mounting the pressure and the reaction plate for rotation together;
- means coupled with the pressure plate for relative axial movement between the pressure and reaction plates between an engaged position and a disengaged position of the clutch;
- and
- axially acting resilient means for engaging the pressure plate thereby controlling the relative axial movement, the pressure plate having a central hole defining an inner periphery of the pressure plate, a front face defining a friction surface for cooperation with the friction disc, and a back face for engagement by the resilient means, wherein the pressure plate further includes ventilating fins projecting radially inwardly and disposed on the inner periphery thereof, the ventilation fins are spaced apart circumferentially at regular intervals and define air flow channels therebetween.
4 more elements
A dry friction clutch including:
- a pressure plate;
- a reaction plate;
- a friction disc interposed between the pressure plate and the reaction plate;
- means mounting the pressure and the reaction plate for rotation together;
- means coupled with the pressure plate for relative axial movement between the pressure and the reaction plate between an engaged position and a disengaged position of the clutch;
- and
- axially acting resilient means for engaging the pressure plate thereby controlling the relative axial movement, the pressure plate having a central hole defining an inner periphery of the pressure plate, a front face defining a friction surface for cooperation with the friction disc, and a back face for engagement by the resilient means, wherein the pressure plate further includes a plurality of first ventilating fins protecting radially inwardly and disposed on the inner periphery thereof, wherein the pressure plate is a casting integrally formed with the ventilating fins;
- and
- the pressure plate has a plurality of second ventilation ribs disposed on the back face, a number of the first ventilation ribs being greater than a number of the second ventilation ribs.
6 more elements
Dependencies are inferred from the claim text.