192 clutches and power-stop control – Clutches – Operators
Patent
1987-07-13
1988-09-06
Braun, Leslie A.
192 clutches and power-stop control
Clutches
Operators
192 321, 464 24, 464 57, 464 58, F16D 314, F16D 380
Patent
active
047686375
ABSTRACT:
An assembly (19) for damping torsionals in a vehicle driveline. Assembly (19) includes a spring assembly (20) and a vane damper assembly (22) disposed in parallel and immersed in automatic transmission fluid of a torque converter housing (24). The spring assembly (20) isolates driveline torsionals and the damper assembly dissipates the torsionals. The damper assembly (22) includes first and second relatively rotatable housing members (66,68) respectively connected to the spring assembly output (62b) and input (62a). Members (66,68) are also frictionally interconnected by surfaces (68a,74a). Housing members (66,68) define chambers (78a,78b) containing the transmission fluid and which vary inversely in volume in response to flexing of the spring assembly (20) by the driveline torsionals. As the chambers vary in volume, energy from the torsionals is converted to fluid pressure in the chambers decreasing in volume. The pressure increases the engagement force of the friction surfaces and the pressure is dissipated across restricted passages.
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Bopp Warren G.
Janson David A.
Braun Leslie A.
Eaton Corporation
Rulon P. S.
Testardi David A.
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