Controllable viscous coupling

Details Controllable viscous coupling Controllable viscous coupling

2005-04-05

2005-04-05

Rodriguez, Saul (Department: 3681)

192 clutches and power-stop control

Clutches

Plural clutch-assemblage

C192S057000, C192S058410, C192S084700, C192S084800

Reexamination Certificate

active

06874605

ABSTRACT:
The invention relates to a controllable viscous coupling for generating a locking effect between two coupling parts rotatable relative to one another around a common longitudinal axis, more particularly for the driveline of a motor vehicle. The viscous coupling comprises a first coupling part, a second coupling part, wherein the first and the second coupling part form a sealed annular chamber. First plates are connected to the first coupling part in a rotationally fast way and second plates are connectable to the second coupling part in a rotationally fast way, as well as controllable connecting means to allow switching between an open position in which the second plates are freely rotatable relative to the second coupling part, and a closed position in which the second plates are connected to the second coupling part in a rotationally fast way.

REFERENCES:
patent: 4885957 (1989-12-01), Taureg et al.
patent: 5086867 (1992-02-01), Hirota et al.
patent: 5338266 (1994-08-01), Guimbretiere
patent: 6267214 (2001-07-01), Kwoka

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