Patent ID: 7954613

Claim:
A decoupler assembly comprising: a hub having a rotational axis; a drive member disposed about the hub for rotation about the rotational axis, the drive member having an inner clutch surface; and a clutch coupling the hub and the drive member, the clutch comprising a carrier, a plurality of arcuate springs, and a wrap spring, the carrier being received between the hub and the drive member, the arcuate springs being mounted to the carrier and configured to transmit rotary power between the carrier and the hub, the wrap spring comprising a proximal end and a plurality of helical coils, the proximal end being drivingly coupled to the carrier, the helical coils being engaged to the inner clutch surface of the drive member; wherein a portion of the helical coils of the wrap spring is wrapped about a perimeter of a portion of the carrier, wherein the portion of the helical coils are disposed between the inner clutch surface and the portion of the carrier, and wherein the arcuate springs are disposed within the carrier so as to be positioned axially along the rotational axis entirely between opposite axial ends of the wrap spring.