192 clutches and power-stop control – Clutches – Automatic
Patent
1991-09-13
1992-04-28
Bonck, Rodney H.
192 clutches and power-stop control
Clutches
Automatic
192 482, 192 485, 192 67P, 192 84C, F16D 1100, F16D 2100, F16D 2700
Patent
active
051079720
ABSTRACT:
An electromagnetic clutch assembly (40) especially suitable for use in motor vehicle four wheel drive systems selectively provides power to the front drive components (26, 28, 30). The clutch assembly (40) includes a through drive shaft (42) about which a clutch armature (100), clutch rotor (110), output drive sprocket (76) and other components are coaxially disposed. The drive shaft (42) receives a plurality of spring biased fingers (56) which selectively couple the shaft (42) to the drive sprocket (76). The fingers are translated axially by a like plurality of cam lobes (122) on the rotor (110). A torsion spring (154) maintains the cam lobes (122) in alignment with the fingers (56). When an electromagnetic coil (130) adjacent the rotor (110) is activated, the drag from the associated front wheel drive components (26, 28, 30) slows the clutch armature (100) and the rotor (110), rotating the rotor (110) and cam lobes (122) relative to the drive shaft (42) and allowing the fingers (56) to translate axially, thereby coupling the output drive sprocket (76) to the drive shaft (42).
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Bonck Rodney H.
Borg-Warner Automotive Inc.
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