192 clutches and power-stop control – Clutches – Torque responsive
Reexamination Certificate
2011-07-12
2011-07-12
Le, David D (Department: 3655)
192 clutches and power-stop control
Clutches
Torque responsive
C192S055500, C192S04100R, C474S070000
Reexamination Certificate
active
07975821
ABSTRACT:
A decoupler assembly is provided for allowing an alternator to be rotatably driven by a serpentine belt in an engine of an automotive vehicle and for allowing the speed of the belt to oscillate relative to the alternator. A hub is fixedly carried by a drive shaft from the alternator for rotation therewith. A pulley is rotatably journaled to the hub by a ball bearing assembly. A bare, helical clutch spring is operatively coupled between the hub and pulley for transferring rotational movement from the pulley to the hub during acceleration of the pulley relative to the hub by the serpentine belt and for allowing the hub to overrun the pulley during deceleration of the pulley relative to the hub. A torque limiter, preferably a spring or sleeve, is wrapped about the torsion spring limiting outward expansion of the torsion spring and isolating the torsion spring from torques above a predetermined limit.
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Antchak John R.
Graniero Robert
Kaiponen Mark
Harness & Dickey & Pierce P.L.C.
Le David D
Litens Automotive Partnership
Scott Jacob S
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