Rotary coupling for torque transmission

Details Rotary coupling for torque transmission Rotary coupling for torque transmission

1991-12-27

1993-01-12

Lorence, Richard

192 clutches and power-stop control

Clutches

Automatic

192 57, 192 85AA, 192103F, F16D 43284, F16D 250638

Patent

active

051782499

ABSTRACT:
A rotary coupling for torque transmission is arranged between two relatively rotatable shafts to transmit a rotational torque in response to a rotational speed difference therebetween. The device includes a housing connected to the first shaft for rotation therewith, a clutch means for transmitting rotational torque between two shafts, and a piston which thrusts the clutch means in the axial direction. The rotary coupling also includes a rotor received in a cylindrical space, in which a high viscous fluid is filled to be compulsorily moved by the rotor. Each side surface of the rotor is provided with plural depressions at regular interval in the circumferential direction. The depressions have inclining surfaces inclining in the rotational direction of the rotor. When a rotational speed difference occurs between the two shafts, wedge effects occur between the inclined surfaces and the housing and between the inclined surface and the piston so that a high pressure is generated in the space section quickly.

REFERENCES:
patent: 3490312 (1970-01-01), Seltz et al.
patent: 4905808 (1990-03-01), Tomita et al.
patent: 4966268 (1990-10-01), Asano et al.
patent: 5012908 (1991-05-01), Kobayashi et al.
patent: 5063738 (1991-11-01), Asano et al.

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