Carl Hasse & Wrede

Manfred Hoch

Joachim Conseur

A torsional balancer device for a rotary shaft such as for a piston engine comprises a primary mass mounted upon the rotary shaft and a secondary mass resiliently supported and mounted with respect to the primary mass so as to be capable of resilient rotational movement with respect thereto. The primary and secondary masses have mutually facing surfaces which define a working space and a viscous damping agent is in the working space. The mutually facing surfaces have profiled configurations so as to form a plurality of chambers the widths of which are varied during relative vibration of the secondary mass with respect to the primary mass. The configurations may comprise coregistering ribs and grooves which have various cross-sectional shapes.

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Berlin, Germany

Manfred Hoch