Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1990-10-12
1991-10-22
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
192 84C, 192107M, 310256, H02K 7108, F16D 2710
Patent
active
050598422
ABSTRACT:
An electromagnetic clutch includes a clutch rotor having a first friction surface and an annular armature plate having a second friction surface. The first friction surface and the second friction surface face each other. A friction member made of nonmagnetic material is fixedly disposed within a second groove formed at the second friction surface of the annular armature plate. A first end surface of the friction member projects with respect to the second friction surface of the annular armature plate. The first friction surface of the clutch rotor is provided with a first annular groove to receive the projecting portion of the friction member. Therefore, the depth of the second groove becomes smaller. Consequently, the number of magnetic lines of flux which radially penetrate through an annular portion of the annular armature plate at the location of the second groove is enhanced. Thus, the magnetic attraction between the annular armature plate and the clutch rotor is increased without increasing the weight of the electromagnetic clutch.
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Rebsch D. L.
Sanden Corporation
Stephan Steven L.
LandOfFree
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