Device for absorbing oscillations, especially an oscillation damper

Device for oscillation damping on rotating components with two flywheel masses—a primary mass and a secondary mass—which are limitedly rotatable relatively to one another in peripheral direction;

• the primary mass and the secondary mass are coupled with one another over a damping coupling and a spring coupling;
• with means for the execution of the spring coupling comprising at least one spring device;
• characterized by the following features:
• each spring device comprises at least two spring elements—a first spring element and a second spring element;
• each individual spring element of the spring device is preloaded and is supported on the primary mass and the secondary mass;
• the spring elements of the spring device are allocated to the primary mass and the secondary mass in such manner that the spring elements undergo a mutual support;
• the primary mass is at least indirectly coupleable with a rotating component in a torsionally stiff manner;
• the secondary mass is free from a direct torsional coupling in a torsionally stiff manner with the rotating component;
• means for the damping coupling comprising at least one hydraulic fluid supply system;
• the hydraulic fluid supply system is coupled with an interspace between the primary mass and the secondary mass;
• and
• further means for limiting the twist angle of the primary mass with respect to the secondary mass peripheral direction, comprising at least one projection arranged on one of the primary mass and the secondary mass and engaging a recess on the other of the primary mass and the secondary mass in the peripheral direction and in an installation direction in such manner that the projection is relatively shifiable with respect to the mass having the recess thereon;
• the recess in the peripheral direction forming a stop for the projection.