Hydraulic tensioning device for automotive piston engine chain improves the chain vibration characteristics and extends service life

摘要

A hydraulic tensioning device (2) for a piston engine chain drive has a tensioning piston (3) within a cylinder (8). The piston (3) limits the chamber size and is moved by the chain (1) in proportion to the pressure within the chamber. The clamp (2) has a passage (40) linking the chamber (9) with a hydraulic system, and an outlet passage (41) linked to the pressure chamber (9). The hydraulic medium (10) discharge rate is limited by the passage (41) throttle (20).