公开(公告)号：US20060105883A1

公开(公告)日：2006-05-18

申请号：US10986793

申请日：2004-11-15

申请人： James Krisher ,  Thomas Redding ,  Zachary Heisey

发明人： James Krisher ,  Thomas Redding ,  Zachary Heisey

IPC分类号： B60W10/02

CPC分类号： B60K17/344 ,  B60K23/0808 ,  F16D48/02 ,  F16D2048/0221 ,  F16D2500/1027 ,  F16D2500/10431 ,  F16D2500/1045 ,  F16D2500/3115 ,  F16D2500/5075 ,  F16D2500/70418 ,  F16D2500/7109 ,  Y10T477/753

摘要： A transfer case including a hydraulically actuated torque-coupling device is provided for selectively actuating a secondary drive axle of an All-Wheel Drive motor vehicle when wheel slippage occurs with a primary axle. The transfer case comprises a housing, an input shaft and an output shaft both rotatably supported within the housing, and the torque-coupling device. The torque-coupling device comprises a hollow casing, a selectively engageable friction clutch assembly for operatively coupling the input shaft to the output shaft, and a hydraulic clutch actuator. The hydraulic actuator includes a hydraulic pump located within the casing and adapted to generate a hydraulic pressure to frictionally load the friction clutch assembly, and a variable pressure relief valve assembly fluidly communicating with the hydraulic pump to selectively control the hydraulic pressure generated by the pump.

摘要翻译： 提供包括液压致动的扭矩耦合装置的分动箱，用于当主轴发生车轮打滑时，选择性地致动全轮驱动机动车辆的次驱动轴。 传送箱包括壳体，输入轴和可旋转地支撑在壳体内的输出轴和扭矩耦合装置。 扭矩耦合装置包括中空壳体，用于将输入轴可操作地联接到输出轴的可选择性接合的摩擦离合器组件和液压离合器致动器。 液压致动器包括位于壳体内的液压泵，其适于产生用于摩擦地装载摩擦离合器组件的液压，以及与液压泵流体连通的可变减压阀组件，以选择性地控制由泵产生的液压。