US 11,939,911 B2
Clutched pulley assembly
Kody A. Orr, Etobicoke (CA); Geoffrey William Ryeland, North York (CA); Andrew Malcolm Boyes, Aurora (CA); Reza Farshidi, Toronto (CA); Christopher Nyholm, Newmarket (CA); Jun Xu, Woodbridge (CA); and Ercong Ji, Scarborough (CA)
Assigned to LITENS AUTOMOTIVE PARTNERSHIP, Woodbridge, CA (US)
Appl. No. 17/595,117
Filed by Litens Automotive Partnership, Woodbridge (CA)
PCT Filed May 6, 2020, PCT No. PCT/CA2020/050616
§ 371(c)(1), (2) Date Nov. 9, 2021,
PCT Pub. No. WO2020/227819, PCT Pub. Date Nov. 19, 2020.
Claims priority of provisional application 62/952,890, filed on Dec. 23, 2019.
Claims priority of provisional application 62/846,217, filed on May 10, 2019.
Prior Publication US 2022/0220885 A1, Jul. 14, 2022
Int. Cl. F02B 67/06 (2006.01); B60K 25/02 (2006.01); F16D 11/10 (2006.01); F16H 7/08 (2006.01); F16H 55/36 (2006.01)
CPC F02B 67/06 (2013.01) [B60K 25/02 (2013.01); F16H 55/36 (2013.01); F02B 2275/06 (2013.01); F16D 11/10 (2013.01); F16H 2007/0865 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A pulley assembly for an accessory drive system of an internal combustion engine, the pulley assembly comprising:
a first rotary drive member configured to be rotatably supported on a shaft of a rotary power device, wherein the first rotary drive member has a first set of spline teeth thereon and the first rotary drive member is rotatable about a rotational axis;
a second rotary drive member configured to be fixed to the shaft, wherein the second rotary drive member has a second set of spline teeth thereon and the second rotary drive member is rotatable about the rotational axis;
a slider gear disposed for rotation about the rotational axis, wherein the slider gear has a set of slider gear spline teeth thereon and the slider gear is axially moveable between a torque cut-off position and a torque transfer position, wherein, in the torque cut-off position the slider gear spline teeth intermesh with the spline teeth of one of the first and second rotary drive members but not the other of the first and second rotary drive members, thereby operatively disconnecting the first and second rotary drive members from each other, and wherein, in the torque transfer position the slider gear spline teeth simultaneously intermesh with the spline teeth of both the first and second rotary drive members, thereby operatively connecting the first and second rotary drive member to each other; and
an actuator, mountable to the rotary power device, and connected to the slider gear to drive the slider gear axially to between the torque transfer position and the torque cut-off position.