Patent ID: 6598721
Filing Date: 2003-07-29
Classification: F16D

Abstract:
A transfer case for the drive train of a motor vehicle, which comprises a clutch unit by means of which it is possible to produce the connection between a first output shaft and a second output shaft, the clutch unit comprising:a) a first clutch part, rotatably mounted on the first output shaft and displaceable in an axial direction and having first clutch disks arranged in a rotationally fixed but translationally movable manner thereon, b) a second clutch part, mounted for coaxial rotation with the first clutch part and connected in a rotationally fixed manner to the second output shaft and having second clutch disks which are arranged in a rotationally fixed but translationally movable manner thereon, c) a pressure plate displaceable axially toward the first clutch part, a first spring being provided between the pressure plate and the first clutch part, d) a claw clutch, comprising a primary part rotatable with the first output shaft, and a secondary part rotatable with the first clutch part wherein the primary part and secondary part are selectively brought into engagement with one another counter to the force of a second spring, wherein e) the force exerted by the first spring is greater than the force exerted by the second spring, and f) the claw clutch is associated with a synchronizer clutch which comprises a first synchronizer part, which is connected in a rotationally fixed manner to the first output shaft, and a second synchronizer part, which is connected in a rotationally fixed manner to the first clutch part.