Spherical valve seal

Details Spherical valve seal Spherical valve seal

1979-04-02

1981-03-24

Weakley, Harold W.

Valves and valve actuation

With means to increase head and seat contact pressure

Seat pressed to valve

13724622, F16K 2500

Patent

active

042575745

ABSTRACT:
A fixed upstream seal is provided having a variable geometry to provide a maximum body thickness at points of large deflection and a minimum body thickness at points of small deflections with the body thickness varying in progressively from maximum to minimum and minimum to maximum for predetermined halves of the circular seal. Also, a fixed downstream seal is provided having a variable geometry to provide minimum body thickness at points of large axial rotor deflection.

REFERENCES:
patent: 3013766 (1961-12-01), Dawson
patent: 3216696 (1965-11-01), Cooley

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