192 clutches and power-stop control – Clutches – Torque responsive
Patent
1987-05-26
1989-01-03
Herrmann, Allan D.
192 clutches and power-stop control
Clutches
Torque responsive
1921061, 464 99, F16D 379
Patent
active
047950129
ABSTRACT:
A torsional coupling or resilient damper assembly for a friction clutch or torque converter lock-up clutch which is formed of a plurality of spiral spring plates or discs that are secured together as a unit with an outer peripheral ring and an inner ring for each disc joined together by one or more spiral spring members formed by one or more spiral slots extending between the inner and outer rings. The coupling is formed of a stack of plates wherein the slots in the plates are axially aligned and the forces in the plates are balanced when two or more spiral slots are utilized. If a single spiral slot is provided in each disc, the forces are balanced by alternate plates being reversed or all plates being positioned identically but phased through angles divisible into 360.degree.. Different embodiments of spiral spring discs may be combined in a single assembly.
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Borg-Warner Automotive Inc.
Geppert James A.
Herrmann Allan D.
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