Decoupler

A decoupler, comprising:

• a driver defining a clutch surface;
• a hub that is disposed within the driver;
• and
• a torsionally-compliant member and a one-way clutch that are disposed in series in a torque path between the hub and the driver, the one-way clutch permitting rotary power to be transferred from one of the driver and the hub to the other one of the driver and the hub in a first rotary direction, the one-way clutch also permitting the other one of the driver and the hub to overrun the one of the driver and the hub in the first rotary direction, the one-way clutch having a carrier assembly, a wrap spring clutch and a spring limiter, the wrap spring clutch being formed of wire and having a first end, a plurality of helical coils, and a second end that is opposite the first end, the first end is coupled to the carrier assembly for rotation therewith, the plurality of helical coils being engaged to the clutch surface, the spring limiter being configured to limit axial elongation of the wrap spring clutch by limiting movement of the second end, wherein the spring limiter is non-rotatably but axially movably coupled to the carrier assembly,
• wherein a plurality of latch mechanisms couple the spring limiter to the carrier assembly.

A decoupler, comprising:

• a driver having a clutch surface;
• a hub that is disposed within the driver;
• and
• at least one arcuate spring and a wrap spring clutch that are disposed in series between the hub and the clutch surface, wherein the at least one arcuate spring has a generally circular cross-sectional shape and having a center axis
• wherein the hub includes a hub body defining a plane and at least one hub tab extending away from the plane at an angle that is less than 90 degrees, wherein each hub tab extends across an axial end of a corresponding one of the at least one arcuate spring along a path that intersects the center axis of the corresponding one of the at least arcuate spring.