Isolator decoupler

摘要

An isolator decoupler comprising a pulley, a shaft, the pulley journalled to the shaft on a low friction bushing, a spring carrier disposed within the pulley, a torsion spring coupled between the pulley and the spring carrier, a wrap spring one way clutch wrapped about the shaft and having a frictional engagement therewith, the wrap spring one way clutch coupled to the spring carrier, the wrap spring one way clutch is disposed radially inward of the torsion spring, and the pulley temporarily engagable with an end of the wrap spring one way clutch in an unwinding direction whereby a temporary contact between the wrap spring one way clutch end and the pulley will temporarily diminish the frictional engagement of the wrap spring one way clutch with the shaft.

主权项

1. An isolator decoupler comprising:
a pulley; a shaft; the pulley journalled to the shaft on a low friction bushing; a spring carrier disposed within the pulley; a torsion spring coupled between the pulley and the spring carrier; a wrap spring one way clutch wrapped about the shaft and having a frictional engagement therewith, the wrap spring one way clutch coupled to the spring carrier; the wrap spring one way clutch is disposed radially inward of the torsion spring; and the pulley temporarily engagable with an end of the wrap spring one way clutch in an unwinding direction whereby a temporary contact between the wrap spring one way clutch end and the pulley will temporarily diminish the frictional engagement of the wrap spring one way clutch with the shaft.