192 clutches and power-stop control – Clutches – Operators
Patent
1996-05-31
1998-04-07
Lorence, Richard M.
192 clutches and power-stop control
Clutches
Operators
192107M, 148218, 335279, 335281, F16D 27112
Patent
active
057353751
ABSTRACT:
An electromagnetically actuated friction clutch includes a rotatably driven input gear. A rotatable armature is connected to the input gear and includes a friction face and nitrocarburized outer surfaces. A pole piece has a pole face for engaging the friction face of the armature and nitrocarburized outer surfaces. An electromagnet generates an electromagnetic field to shift the armature from a disengaged position to an engaged position wherein the friction face of the armature and the pole face of the pole piece are frictionally engaged. An output shaft is driven by the input gear when the armature is in the engaged position. The nitrocarburized outer surfaces of the armature and the pole piece resist wear, while interior portions of the armature and pole piece direct magnetic flux flow along a desired path.
REFERENCES:
patent: 4632236 (1986-12-01), Koitabashi
patent: 4793871 (1988-12-01), Dawes et al.
patent: 4904316 (1990-02-01), Dawes et al.
patent: 5119915 (1992-06-01), Nelson
patent: 5123157 (1992-06-01), Cerny
patent: 5252146 (1993-10-01), Wen et al.
patent: 5488340 (1996-01-01), Maley et al.
Booth Dwight E.
Gustin David C.
Larson Paul A.
Olsen Robert A.
Dana Corporation
Lorence Richard M.
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