Mechanical shaft seals

Details Mechanical shaft seals Mechanical shaft seals

F - Mech Eng,Light,Heat,Weapons

16

J

277/20.5, 277/20

F16J 15/48 (2006.01) F16J 15/34 (2006.01)

Patent

CA 1220802

MECHANICAL SHAFT SEALS ABSTRACT A fully-floating shaft seal typically comprises a rotary assembly for attachment to the shaft 3 and a stationary assembly for attachment to a housing surrounding the shaft. Both the rotary assembly and the stationary assembly include fixed portions and floating portions. According to the present invention, a stationary assembly for a fully-floating shaft seal comprises a first annular member for surrounding the shaft and attachable to housing , a second annular member having a radial face for mating with a radial face of the rotary assembly , and a third annular member between the first and second annular members the arrangement being such that relative pivotal or rocking movement is permitted about a first axis between the first and third annular members and about a second axis at right angles to the first axis between the second and third members , such movement being achieved without any axial force being exerted or originating from any member of the stationary assembly.

431687

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