Fluid friction clutch

Details Fluid friction clutch Fluid friction clutch

1997-10-22

1999-08-17

Lorence, Richard M.

192 clutches and power-stop control

Clutches

Fluent material

192 588, F16D 3502

Patent

active

059379839

ABSTRACT:
A fluid friction clutch has a supply chamber separated from a working chamber by a connecting orifice between the supply chamber and the working chamber. The clutch has a pivotable valve lever with a permanent magnet. A circuit applies a selectively positive or negative current to an electromagnetic coil for generating a selectively alternative magnetic field that interacts with the permanent magnet to control the movement of the valve lever, and, thereby open and close the connecting orifice.

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patent: 5555963 (1996-09-01), Martin
Martin, "Elektronisch geregelte elektromagnetische Visco-Lufterkupplungen Fur Nutzfahrzeuge", ATZ Austomobilechnische Zeitschrift 95, May 1993, pp. 240-247.

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