Motor vehicle engine torsion damper, especially for double flywheel, has springs with tips of ground ends turned towards inside of springs

摘要

The torsion damper, especially for a motor vehicle double damping flywheel with coaxial input and output members and circumferential springs that have flat ground ends to interact with stops, has the tip (36) of each spring's ground end face (38) turned inwards towards the interior of the spring and extending for at least 90 degrees round its axis. The springs, which are pre-curved before fitting in the damper, are mounted in pairs having the same diameter but different degrees of stiffness and opposite pitches. Their facing ends can press against one another directly or via a thrust plate.