Patent ID: 9080621
Filing Date: 2015-07-14
Classification: F16D,F16H,Y10T

Abstract:
1. A freewheeling synchronizer for a power transmission device, comprising: a clutch race having an inner periphery, rotationally fixable at the inner periphery to a component of the power transmission device; the clutch race including an outer periphery with unidirectional clutching elements, the outer periphery configured to support a synchronizer hub; the synchronizer hub disposed radially outwardly from the clutch race and unidirectionally rotatable relative to the clutch race; wherein the synchronizer hub includes an outer periphery with at least one pocket with a strut configured to engage both in the pocket and with a first synchronizer ring, the first synchronizer ring configured to frictionally engage a second synchronizer ring, and the strut configured to engage both in the pocket and with a third synchronizer ring, the third synchronizer ring configured to frictionally engage with a fourth synchronizer ring; wherein a first gear is positioned on one side of the clutch race and a second gear is positioned on a second side of the clutch race and the clutch race is selectively engageable with either the first gear through the first and second synchronizer rings or the second gear through the third and fourth synchronizer rings; wherein the clutch race includes a splined inner diameter, and an outer ratchet diameter defining a plurality of notches; further comprising at least one pawl disposed between the clutch race and the synchronizer hub for engagement with the notches of the clutch race; further comprising at least one spring to urge the at least one pawl into engagement with the notches of the clutch race.