Torsional damper

Details Torsional damper Torsional damper

1976-03-24

1977-08-30

Scott, Samuel

Machine element or mechanism

Elements

Flywheel, motion smoothing-type

74604, 74573R, 64 1V, F16F 1510

Patent

active

040446280

ABSTRACT:
A torsional damper for reducing the vibrations produced when a shaft is driven by the intermittent application of a discontinuous force thereto, e.g. the crankshaft of an internal combustion engine, comprising an integrally formed disk-like mass having three concentric zones, namely, an inner central zone, an outer annular zone, and an intermediate spring zone therebetween. The spring zone includes narrow, elongated, spirally-arranged, overlapping slots extending axially through the disk and radially between the inner and outer zones to provide spirally-arranged overlapping web portions which act as torsional springs or shock absorbers due to an inherent resiliency. The spirally slotted damper is formed as an integral unit by casting it from a metal such as cast iron with the spiraled slots having a predetermined size and shape to provide the desired damping effect.

REFERENCES:
patent: 3136178 (1964-06-01), O'Connor
patent: 3221849 (1965-12-01), Klass et al.
patent: 3387505 (1968-06-01), Rumsey
patent: 3462136 (1969-08-01), Rumsey

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