Sealing ring structure with stressing ring

Details Sealing ring structure with stressing ring Sealing ring structure with stressing ring

1987-04-16

1987-12-22

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277188R, 277214, F16J 1524

Patent

active

047142596

ABSTRACT:
In a sealing ring structure comprising a sealing ring (1) made of a tough-elastic plastic material and a stressing ring (11) made of a rubber-elastic material, the sealing ring (1) is provided with an annular recess (2) on its sealing surface which rests against the other machine component (14). The stressing ring (11) is arranged in the sealing ring (1) approximately centrically relative to the said recess so that the force of the stressing ring (11) is distributed over the two end portions of the sealing ring (1) defining the recess (2). Any dimensional deviations resulting from tolerances or temperature changes are compensated by smaller or greater deflection of the central portion of the sealing ring (1), without notable changes to the surface pressures encountered between the sealing ring (1) and the sealing surface (15) which are essential for the proper operation.

REFERENCES:
patent: Re28105 (1974-08-01), Traub
patent: 2784013 (1957-03-01), Groen
patent: 3033578 (1962-05-01), Kellogg
patent: 3268235 (1966-08-01), Jacobellis
patent: 4179131 (1979-12-01), Nussbaumer
patent: 4239242 (1980-12-01), Burns

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