Tubular elastomer damper

Details Tubular elastomer damper Tubular elastomer damper

1994-05-11

1995-09-12

Oberleitner, Robert J.

Spring devices

Rubber

2671411, 267293, 267294, F16F 136, B60G 1122

Patent

active

054491525

ABSTRACT:
A tubular elastomer damper has a central shaft disposed within a housing and surrounded by an elastomer member. Uniform strain is provided across the elastomer disposed between the central shaft and the housing by either tapering the length of the elastomer from an inner to an outer bonding surface such that the radius times the length at each point along the elastomer is equal or by providing a first elastomer layer adjacent the shaft having a high fatigue strain/lower damping ability, a second elastomer layer adjacent the housing having a low strain higher damping ability and an intermediate elastomer layer of moderate strain and damping therebetween such that from the inner to the outer radius of the elastomer member, uniform strain is achieved. By providing uniform strain from the inner to the outer radius of the tubular elastomer damper, temperature increases due to localized high strains are avoided which are detrimental to damper performance. Optionally, axial cooling passages are provided within the elastomer member to dissipate heat to assure operation within design parameters, thus extending the life of the tubular elastomer damper.

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