192 clutches and power-stop control – Clutches – Operators
Patent
1988-10-12
1990-06-26
Braun, Leslie A.
192 clutches and power-stop control
Clutches
Operators
192 58B, F16D 4325
Patent
active
049364332
ABSTRACT:
A clutch plate assembly (24) for a vehicle driveline includes a spring damping mechanism disposed in parallel with a viscous shear damper mechanism (30) for damping spring recoil. The spring damping mechanism includes a set of pairs of relatively high rate helical compression springs (34,36) for transmitting torque and attenuating torsionals when a transmission input shaft (22) is connected to a load and a set of relatively low rate helical compression springs (38) connected in series with the high rate springs (34,36) for attenuating torsionals when the shaft (22) is not connected to a load. The viscous damper mechanism includes an annular housing (48) having first and second radially extending sidewalls (52,54) defining a compartment (48a) having a clutch assembly (50) disposed therein for viscous clutching coaction via a viscous shear oil. An inner member (58) of the clutch assembly (50) includes a dynamic seal assembly (66 or 72) molded integral therewith for sealing the inner extent of the compartment (48a). The inner extent of the housing includes a plurality of fasteners (56e) structurally interconnecting the inner extent of the sidewalls (52,54) to prevent relative axial movement of the sidewalls due to centrifugal effects. The housing sidewalls (52,54), and the clutch and seal assemblies are formed to facilitate a method for readily assembling and accurately filling the damper with viscous shear oil.
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E. S. Bower, Design Practices--Passenger Car Transmissions, 1962, pp. 365 and 371.
Braun Leslie A.
Eaton Corporation
Rulon P. S.
Whitelaw Nicholas
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