Spring tensioning and damping system for belt drive for accessory in internal combustion engine has chamber with restricted access for oil, acting as damping chamber

摘要

The spring tensioning and damping system (1) for a belt drive has a bearing (9) connected to a rod (6) entering a chamber with restricted access for oil. This acts as a damping chamber and contains a spring (19). The spring engages on a floating piston (14) with seals (16). Oil may flow from a low-pressure chamber (13b) into an upper chamber (13a) under the floating piston.