| 主权项 |
1. A decoupler comprising:
a hub; a drive member that is configured to engage an endless power transmitting element; and a one-way clutch and torsionally resilient coupling having a carrier, a wrap spring, a clutch surface, and at least one spring, the carrier defining a groove, the wrap spring being formed of wire and having an engagement end and a plurality of helical coils, the engagement end being shorter in overall length than a length of one of the helical coils, the engagement end being received in the groove, the helical coils being engaged to the clutch surface and being wound such that when rotary power is transmitted from the one of the hub and the drive member to the other one of the hub and the drive member the helical coils tend to uncoil against the clutch surface, wherein the carrier is received in a pocket formed in a rotary member selected from a group consisting of the hub, the drive member, and a component in a torque path between the hub and the drive member, wherein an axial end face of the wire that forms the wrap spring is abutted against an edge of the pocket. |
