Patent ID: 11939911
Assignee: LITENS AUTOMOTIVE PARTNERSHIP
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 5:
6. An accessory drive system for an internal combustion engine, comprising:
a crankshaft pulley mounted to an engine crankshaft;
a compressor pulley mounted to a compressor shaft;
a pulley assembly mounted to a motor-generator unit (MGU) shaft, the pulley assembly including
a first sheave rotatably mounted via a bearing to the MGU shaft so as to be rotatable independent of the MGU shaft, the first sheave having a first set of spline teeth thereon,
a second sheave fixed to the MGU shaft so as to rotate therewith, wherein the second sheave has a second set of spline teeth thereon,
a slider gear disposed for rotation about the MGU shaft, 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 second sheave spline teeth but not the first sheave spline teeth, thereby operatively disconnecting the first and second sheaves from each other, and wherein, in the torque transfer position the slider gear spline teeth simultaneously intermesh with the second sheave spline teeth and the first sheave spline teeth, thereby operatively connecting the first and second sheaves to each other, and
an actuator, mountable to an MGU, and connected to the slider gear to drive the slider gear axially between the torque transfer position and the torque cut-off position;

a first endless drive member interconnecting the crankshaft pulley and the first sheave; and
a second endless drive member interconnecting the compressor pulley and the second sheave.