Adjustable viscous shear coupling

Details Adjustable viscous shear coupling Adjustable viscous shear coupling

1992-01-17

1992-11-03

Braun, Leslie A.

192 clutches and power-stop control

Clutches

Operators

192 57, F16D 3500

Patent

active

051600080

ABSTRACT:
An adjustable viscous shear coupling suitable for use in a high performance four-wheel drive vehicle comprises a housing containing a viscous fluid therein, a shaft extending into the housing, a set of outer disks non-rotatably connected to the housing, a set of inner disks non-rotatably connected to the shaft and interleaved with the outer disks, and an axially movable pressure piston which bears against the disks and adjusts the gap width between the inner and outer disks. One of the sets of disks is provided with frictional linings. The disks are brought to bear against each other in a controlled manner so that torque can be transmitted therebetween in a smooth, hump-less manner by a combination of frictional engagement and viscous shear.

REFERENCES:
patent: 4022084 (1977-05-01), Pagdin et al.
patent: 4844219 (1989-07-01), Stockmar
patent: 4942951 (1990-07-01), Kriebernegg et al.

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