Slide-ring seal with distortion prevention construction

Details Slide-ring seal with distortion prevention construction Slide-ring seal with distortion prevention construction

1985-12-30

1986-09-23

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 9, 277 86, 277 93SD, 277 961, F16J 1534, F16J 1538

Patent

active

046131426

ABSTRACT:
A slide-ring seal for sealing a shaft rotating with respect to a wall. The slide-ring sealing comprises a frame portion provided with connections for a sealing liquid and seal rings (4) provided with slide rings (5), which seal rings are so positioned with respect to each other that the sealing slide surfaces of the slide rings (5) are pressed against each other and rotate with respect to each other. Each slide ring (5) is thereby fastened on the seal ring (4) thereof by means of a shrinkage fit in such a manner that a radial press force (F.sub.K) of the shrinkage fit is wholly directed to act on the center of mass (K) of the cross-sectional area of the slide ring (5). In order to prevent distortion of the slide surface of the slide ring (5), an axial force (F.sub.L) created by deformations of the seal ring is wholly directed to act on the center of mass (K) of the cross-section of the slide ring (5).

REFERENCES:
patent: 3144253 (1964-08-01), Schirmer
patent: 3410566 (1968-11-01), Wiese
patent: 3717353 (1973-02-01), Rayfield
patent: 3738667 (1973-06-01), Symons
patent: 4261581 (1981-04-01), Hershey
patent: 4405134 (1983-09-01), Sargent et al.

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