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US 8,132,657 B2Granted
Torque limited decoupler
AssigneeLitens Automotive Partnership
InventorsJohn R. Antchak, Mark Kaiponen, Robert Graniero
Life of this patent
Estimating the term…
Abstract
A decoupler assembly with a torsional damping system and a torque limiter. The torsional damping system has a torsion spring that facilitates transfer of rotary power into a hub. The torque limiter is wrapped about the torsion spring and radially expands with the torsion spring as a magnitude of the rotary power transmitted through the torsion spring increases. Contact between the torque limiter and another structure in the decoupler assembly halts radial expansion of the torsion spring.
Claims20
A decoupler assembly comprising:
- a hub;
- a drive member disposed concentrically about the hub;
- a torsional damping system disposed between the drive member and the hub, the torsional damping system comprising a one-way clutch and a torsion spring, the one-way clutch comprising an input member, the torsion spring being formed of wire and being configured to transmit rotary power between the input member of the one-way clutch and the hub;
- and
- means for limiting rotary power transmitted axially through the wire of the torsion spring, the means comprising a radially expandable torque limiter that is mounted to the torsion spring.
2 more elements
A decoupler assembly comprising:
- a hub;
- a drive member disposed concentrically about the hub;
- a torsional damping system disposed between the drive member and the hub, the torsional damping system comprising a one-way clutch and a torsion spring, the one-way clutch comprising an input member, the torsion spring being configured to transmit rotary power between the input member of the one-way clutch and the hub;
- and
- a torque limiter wrapped about the torsion spring and radially expanding with the torsion spring as a magnitude of the rotary power transmitted through the torsion spring increases, wherein contact between the torque limiter and the one-way clutch halts radial expansion of the torsion spring at a predetermined maximum torque such that rotary power transmitted between the one-way clutch and the hub in excess of the predetermined torque is at least partly transmitted frictionally between the torsion spring and the one-way clutch.
2 more elements
Dependencies are inferred from the claim text.