Electromagnetic clutch

Details Electromagnetic clutch Electromagnetic clutch

1994-08-19

1996-09-03

Lorence, Richard M.

192 clutches and power-stop control

Clutches

Operators

335281, 335296, F16D 27112

Patent

active

055515460

ABSTRACT:
An electromagnetic clutch has an electromagnetic coil 3, an armature 5, and a rotor 1 of a substantially C-cross section, which is constructed by an outer ring 21 arranged outside of the coil 3, an inner ring 22 arranged inside of the coil 3, and a friction face 23 for connecting the inner and the outer rings 21 and 22. The outer ring has an inner periphery of a reduced diameter located nearer to the friction face, so that a thick wall portion 27 is created at a location adjacent the friction face 23. As a result, the magnetic resistance of the outer ring 21 is reduced at a location adjacent the friction wall 23, thereby increasing the total magnetic force of the magnetic circuit, thereby increasing an engaging face between the rotor and the armature.

REFERENCES:
patent: 2857998 (1958-10-01), Harter
patent: 3425529 (1969-02-01), Hayashi
patent: 4704072 (1987-11-01), Nakajima et al.

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