Patent ID: 9316284
Filing Date: 2016-04-19
CPC Classification: F01L,F02B,F16F,F16H,H02K,Y10T

Claim Text:
1. An apparatus that improves rotation of a rotatable shaft, wherein the rotatable shaft has a cyclical cogging torque acting thereon in a first direction, the apparatus comprising: a support member that is adjacent the rotatable shaft, wherein the rotatable shaft is operable to rotate relative to the support member; a first anti-cogging member; a second anti-cogging member that is coupled to the rotatable shaft for rotation with the rotatable shaft; a cam surface that is included on the support member or one of the first anti-cogging member and the second anti-cogging member; and an abutment member that is coupled to the first anti-cogging member or the second anti-cogging member, the abutment member operable to abut against the cam surface to provide an anti-cogging torque to the rotatable shaft in a second direction that opposes the first direction to at least partially offset the cogging torque, wherein at least one of