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US 6,554,113 B2Granted
Torque limiting accessory drive assembly
AssigneeBorgWarner Inc.
InventorsJin Li, Christopher Blair, William Vukovich
Life of this patent
Estimating the term…
Abstract
A torque-limiting accessory drive assembly comprising a pulley to transfer torque to an accessory drive system, a torque limiting device adapted to limit the maximum amount of transferred torque, and a one-way clutch assembly adapted to both selectively transfer torque and selectively interrupt torque transfer at predetermined times to the vehicle accessory drive.
Claims19
A torque-limiting accessory drive assembly comprising:
- a pulley adapted to transfer torque from the power take-off of an internal combustion engine to an accessory drive system;
- a torque limiting device operatively connected to said pulley and adapted to limit the maximum amount of torque transferred from the power take-off of an internal combustion engine to said pulley;
- and
- a one-way clutch assembly operatively interposed between the engine power take-off and said torque limiting device, said one-way clutch assembly acting to selectively transfer torque from the power take-off to said torque limiting device thereby providing motive force to said pulley and vehicle accessory drive, and acting to selectively interrupt torque transfer at predetermined times.
1 more element
A torque limiting accessory drive assembly comprising:
- a pulley adapted to transfer torque from the power take-off of an internal combustion engine to an accessory drive system;
- a contracting spring one-way clutch assembly having a center hub operatively connected to an engine power take-off, an intermediate race located adjacent to said center hub, a spring operatively wound about both said center hub and said intermediate race, a disengagement sleeve disposed about said spring, and a torque interruption assembly operatively fixed to a stationary point, said spring adapted to operatively tighten and engage both said center hub and said intermediate race such that both said center hub and said intermediate race are operatively joined when said center hub rotates in one particular direction, said spring also adapted to operatively loosen and disengage said center hub from said intermediate race when said disengagement sleeve is held stationary by a torque interruption assembly;
- a friction plate clutch operatively interposed between said pulley and said one-way adapted to limit the maximum amount of torque transferred from said one-way clutch to said pulley.
Dependencies are inferred from the claim text.