Damped clutch plate system and method
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United States of America Patent
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Jul 22, 2008
Grant Date -
Mar 8, 2007
app pub date -
Sep 2, 2005
filing date -
Sep 2, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention seeks to minimize the vibration and noise in a clutch plate system, by damping either or both the clutch plate and pressure plate with the use of various engineered viscoelastic materials. A clutch plate assembly is provided, comprising a plate body having a first surface and a second surface. In a first embodiment of the invention, the plate body is formed from a laminated sheet structure including two layers of steel having a viscoelastic core between the two layers and coextensive with the two layers. The viscoelastic core may be tunable to damp at different temperatures. In a second embodiment of the invention, an engineered viscoelastic material is used as a layer of bonding material for the first and second surface of the plate body. A method for damping a clutch plate assembly is provided.
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