Patent ID: 7081064
Filing Date: 2006-07-25
Classification: B60K,F16D,F16H,Y10T

Abstract:
1. A transfer case for use in a motor vehicle having a powertrain and first and second drivelines, comprising: an input shaft driven by the powertrain; a reduction unit driven by said input shaft; a first output member adapted to drive the first driveline; a second output member adapted to drive the second driveline; a first clutch operable in a first range position for establishing a high-range drive connection between said reduction unit and said first output member and in a second range position for establishing a low-range drive connection between said reduction unit and said first output member; a second clutch for transmitting drive torque from said first output member to said second output member; an electric motor for rotating a driveshaft; and a clutch operator having a first member driven by said driveshaft, a second member axially moveable between first and second mode positions for controlling the magnitude of a clutch engagement force applied to said second clutch, and a third member for converting rotary movement of said first member into axial movement of said second member, said third member including a lost motion mechanism configured to permit rotary movement of said first member relative to said third member to coordinate movement of said second member between its first and second mode positions with movement of said first clutch between its first and second range positions in response to rotation of said driveshaft.