Hydrostatic and hydrodynamic seal for rotating a rotating shaft

Details Hydrostatic and hydrodynamic seal for rotating a rotating shaft Hydrostatic and hydrodynamic seal for rotating a rotating shaft

1985-12-20

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 26, 277 81R, 277 85, F16J 1534, F16J 1546

Patent

active

046131418

ABSTRACT:
A hydrostatic or hydrodynamic shaft seal comprises a ring revolving with the shaft and an axially movable static ring which is sealed against the housing by two O-rings and forms, with the revolving ring, radial seal gaps. An incompressible fluid flows and stabilizes the seal gaps and the static seal ring has a cavity for receiving the stopping or cooling liquid. A number of tensioning spring elements are arranged on the circumference or end of the static ring which take support against a ring which serves as a pressure limiting valve.

REFERENCES:
patent: 2089773 (1937-08-01), Vedovell et al.
patent: 2374353 (1945-04-01), Jacobsen
patent: 2509912 (1950-05-01), Eliasson
patent: 3079605 (1963-02-01), Thomas et al.
patent: 3480284 (1969-11-01), Voitik
patent: 4277072 (1981-07-01), Forch
patent: 4471964 (1984-09-01), Kotzur

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