Torsional vibration damper or torsionally flexible coupling

A torsional vibration damper or torsionally flexible coupling, comprising:

• an inner part,
• an outer part that is arranged in ring shape around the inner part, and
• spring elements each having a Z-shape, which join the inner part and outer part in a torsionally flexible manner,
• wherein the spring elements subdivide a ring-shaped space formed between the inner part and the outer part into a plurality of successive chambers in the circumferential direction of the damper or the coupling, with these chambers being filled with a viscous medium and connected to one another, and
• wherein at least two groups of spring elements are provided, which have deflection lines that differ in circumferential direction,
• wherein the inner part, the outer part and the spring elements are made as one single piece.

A torsional vibration damper or torsionally flexible coupling, comprising:

• an inner part,
• an outer part that is arranged in ring shape around the inner part, and
• spring elements, which join the inner part and outer part in a torsionally flexible manner,
• wherein the spring elements subdivide a ring-shaped space formed between the inner part and the outer part into a plurality of successive chambers in the circumferential direction of the damper or the coupling, with these chambers being filled with a viscous medium and connected to one another, and
• wherein at least two groups of spring elements are provided, which have deflection lines that differ in circumferential direction,
• wherein the spring elements are made as separate components that are fastened or at least supported by the inner part and the outer part, respectively,
• wherein first spring elements are fastened with a first end to the inner part and with a second free end supported by a groove on the outer part, respectively,
• wherein second spring elements are fastened with a first end to the outer part and with a second free end supported by a groove on the inner part, respectively, and
• wherein said first and second spring elements are supported in said grooves with zero-clearance at their free ends.

A torsional vibration damper, comprising:

• an inner part,
• an outer part that is arranged in ring shape around the inner part, and
• spring elements, which join the inner part and outer part in a torsionally flexible manner,
• wherein the spring elements subdivide a ring-shaped space formed between the inner part and the outer part into a plurality of successive chambers in the circumferential direction of the damper or the coupling, with these chambers being delimited by side plates and being filled with a viscous medium and connected to one another, and
• wherein at least two groups of spring elements are provided, which have deflection lines that differ in circumferential direction, and
• wherein between a ring section of the outer part and the side plates a sliding bearing is each arranged in the axial direction.