192 clutches and power-stop control – Vortex-flow drive and clutch – Including drive-lockup clutch
Patent
1983-05-31
1985-03-19
Krizmanich, George H.
192 clutches and power-stop control
Vortex-flow drive and clutch
Including drive-lockup clutch
192 58B, 192109F, F16D 4706
Patent
active
045053650
ABSTRACT:
A bypass drive line (27) for a torque converter type automatic transmission (11) in which the bypass drive line includes a viscous coupling (30). The viscous coupling is of a sandwich construction including an annular body member (32) formed of aluminum, an annular cover member (34) of steel secured at its outer periphery (34a) to the outer peripheral portion (32a) of the body member and radially inwardly thereof spaced axially from the body member to define a viscous fluid chamber therebetween, and an annular clutch member (36a) disposed in the chamber and having a central hub portion (36e) adapted to be drivingly connected to the output shaft (16) of the torque converter. Confronting portions (36e, 32f) and (36c, 36d) of the body and clutch members define closely spaced working area, for viscously transmitting force from the body member to the clutch member. The drive into the coupling from the housing (22) of the torque converter is through an annular steel clutching surface ( 34f) defined on the side face of the radially outer peripheral portion of the cover member. The body member includes a central hub portion (32d) which is journaled on the central hub portion of the clutch member and the radially inner periphery (34d) of the cover member is sealed to the clutch member in non load-bearing relation so that the entire radial loading of the body member and cover member are carried at the journal between the hub portion of the body member and the clutch member. And a thrust arrangement (42) is provided on the extension of the coupling having thrust washers 44, 48 which react axial forces at a position radially outward of the journal inhibit cocking of the body hub on the clutch hub.
REFERENCES:
patent: 3625325 (1971-12-01), Hersey
patent: 3972399 (1976-08-01), Bopp
patent: 4064980 (1977-12-01), Tinholt
patent: 4181203 (1980-01-01), Malloy
patent: 4317510 (1982-03-01), Staub
patent: 4423803 (1984-01-01), Malloy
Eaton Corporation
Grace C. H.
Krizmanich George H.
Rulon P. S.
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