It reliably protects crankshafts, camshafts, intermediate and propeller shafts in all kinds of reciprocating systems. By changing the critical frequency, the Geislinger Damper also helps to avoid a barred speed range.
As modern engines tend to create more than one critical frequency, Geislinger has developed dual damper solutions as well as combinations of a Geislinger Damper and a Geislinger Vdamp®. This design ﬂexibility guarantees the best solution for every type of engine.
The damper is usually mounted to the free end of the crank or camshaft and consists of a primary and a secondary section. Between these sections, groups of steel leaf spring packs are arranged. These spring packs, together with intermediate pieces and the secondary section, form chambers which are filled with pressurized engine oil.
The steel springs are tuned to optimize the natural frequency of each individual system. Engine oil is used to reduce torsional vibrations by wearless hydraulic damping.
The damper´s elasticity is determined by its shape and number of springs. Thereby, the torsional system is detuned and the most critical resonance is eliminated.
If the exterior section vibrates in relation to the inner one, the leaf springs bend and the pressurized engine oil is pumped from one chamber into another. This reduces the relative motion of the two parts and thus dampens the residual torsional vibrations.