Electro-mechanical variable speed clutch

Details Electro-mechanical variable speed clutch Electro-mechanical variable speed clutch

1997-09-26

1999-11-09

Marmor, Charles A.

192 clutches and power-stop control

Clutches

Operators

192 84A, F16D 1900

Patent

active

059796308

ABSTRACT:
A multiple plate clutch/brake employs a single electromagnet coil to attract an elongate cylindrical armature to compress a series of non-ferromagnetic friction plates alternately joined to one of two independently rotatable shafts. The armature joins one set of friction plates to its shaft for torsional but not axial forces. The compression of the friction plates by the armature transmits torque between the shafts rather than frictional contact by the armature itself. The magnetic path to the armature may pass through two axial gaps to provide a net axial force on the armature. A portion of the magnetic path is provided by one of the shafts.

REFERENCES:
patent: 2936054 (1960-05-01), Simon et al.
patent: 3329248 (1967-07-01), Schubert
patent: 3484816 (1969-12-01), Davidson
patent: 3744609 (1973-07-01), Miller
patent: 4958712 (1990-09-01), Suganuma et al.
patent: 5273409 (1993-12-01), Swain
patent: 5366419 (1994-11-01), Oda

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