Rotational vibration damper for use as divided flywheel in torque converter in internal-combustion engine of motor vehicle, has helical compression spring exhibiting set of sections with spring coils of different spring rigidity

摘要

The damper (1) has a helical compression spring (8) compressible between two impact areas (9, 10) and inserted into a curve form in the damper. The helical compression spring is provided with spring coils extending along a longitudinal axis, where the compression spring exhibits a set of sections with spring coils of different spring rigidity and a constant external radius over the sections. The spring coils are laid on a wall under centrifugal force effect, and exhibits an oval cross section. The spring coils are arranged on a block at front side ends.