Differential gear assembly with viscous and friction clutch mech

Details Differential gear assembly with viscous and friction clutch mech Differential gear assembly with viscous and friction clutch mech

1987-04-20

1989-06-13

Herrmann, Allan D.

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

192 58B, 192 82T, F16H 1455, F16D 3500, F16D 25063

Patent

active

048381195

ABSTRACT:
A differential apparatus comprises first and second rotary devices rotatable with respect to each other, a viscous clutch having a chamber filled with a viscous fluid and restricting a differential operation generated between the first and second rotary devices by the resistance of the viscous fluid, a friction clutch separated from the viscous clutch and restricting the differential operation, and a device for preventing the seal of the chamber from being reduced by an increase in pressure within the chamber and actuating the friction clutch in accordance with an input torque.

REFERENCES:
patent: 4031780 (1977-06-01), Dolan et al.
patent: 4040271 (1977-08-01), Rolt et al.
patent: 4058027 (1977-11-01), Webb

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