Traction drive, especially for driving internal combustion engine units, has arrangement for demand regulated setting of tension consisting of unit with housing with limited rotation and pulley

摘要

The device has a traction element connecting all belt pulleys of the units and a tensioning system. One unit is provided with a housing with limited rotation (11), with which at least one direction changing pulley (12,13) driven by the traction element (3) interacts either directly or indirectly to form an arrangement that uses a torque induced by the unit in the operating state to influence the tension in the traction element.