Actuator for viscous clutch with magnetic oil circulation valve

Details Actuator for viscous clutch with magnetic oil circulation valve Actuator for viscous clutch with magnetic oil circulation valve

2007-01-09

2007-01-09

Bonck, Rodney H. (Department: 3681)

192 clutches and power-stop control

Clutches

Fluent material

C251S129200

Reexamination Certificate

active

10884282

ABSTRACT:
An actuator which, by a movement of a component which is generated by means of an electric current, can effect control of another component in a mechanical environment having rotating parts which are housed in a very small space. A rotating element, for example a clutch shaft (1; 21), is hollow, and an electromagnetic coil arrangement (7; 24) is housed in this cavity in such a way that the excitation of the coil is converted into a mechanical displacement of a component arranged outside the clutch shaft, for example of a sleeve sliding axially on the clutch shaft. For this purpose, parts of the clutch shaft are made ferromagnetic and are integrated in the magnetic loop of the coil (7; 24). The actuator according to the invention can be used, for example, in a viscous clutch for controlling the throughput of shear medium.

REFERENCES:
patent: 4270641 (1981-06-01), Nonnenmann et al.
patent: 4305491 (1981-12-01), Rohrer
patent: 4633994 (1987-01-01), Light
patent: 5816376 (1998-10-01), Hatori
patent: 5893442 (1999-04-01), Light
patent: 5992594 (1999-11-01), Herrle et al.
patent: 6026943 (2000-02-01), Fuchs et al.
patent: 6032775 (2000-03-01), Martin
patent: 2002/0008601 (2002-01-01), Yajima et al.
patent: 1 120 578 (2001-08-01), None
patent: 1248007 (2002-10-01), None

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