Magnetorheological fluid clutch with minimized reluctance

Details Magnetorheological fluid clutch with minimized reluctance Magnetorheological fluid clutch with minimized reluctance

1997-06-02

1998-12-08

Marmor, Charles A.

192 clutches and power-stop control

Field responsive frictional media type

192 82T, 1882672, F16D 3700

Patent

active

058457526

ABSTRACT:
A magnetorheological fluid fan clutch effects modulated rotational motion transmission between a rotatable input shaft carrying an input clutch plate and a housing having a front cover and a rear cover forming a cavity about the input clutch plate wherein a core carried in the front and rear covers operates as output clutch plates. Bearings support the housing on the input shaft through the front and rear covers so that the input clutch plate is rotatable on the input shaft relative to the housing. Magnetorheological fluid is carried in the cavity, through which torque is variably transferred between the input clutch plate and the housing. A coil is positioned radially outside the non-magnetic spacer and carries a variable electrical current to effect a variable magnetic field across the input clutch plate and through the magnetorheological fluid providing modulated torque transmission between the input clutch plate and the core.

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