Transfer case for dividing drive torque of input shaft for e.g. front axle shaft of four-wheel vehicle i.e. motor car, has gear wheels transmitting torque, where airflow is produced in axial direction by rotating movement of wheels

摘要

The case (10) has gear wheels i.e. belt wheels (40, 40'), transmitting torque, where an airflow is produced in an axial direction of the gear wheel by a rotating movement of the gear wheels. The gear wheels comprise shovels or spokes that are uniformly distributed in a circumferential direction of the gear wheels. The shovels or the spokes extend between a ring gear and a connection portion of the gear wheel with an input shaft (16), an output shaft and a hollow shaft portion (38) of a hub. The shovels comprise a curved portion in the axial direction of the gear wheel.