Brush seal

Details Brush seal Brush seal

1987-10-14

1988-07-12

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 59, 277 79, F16J 15447

Patent

active

047565365

ABSTRACT:
A brush seal operationally located between a rotatable shaft and static structure comprises a number of stages. The seal stage adjacent a region of low fluid pressure and its adjacent stage are spaced apart by an apertured ring. The apertures in the ring being so dimensioned as to vent pressurized fluid from the chamber and thereby reduce the magnitude of the pressure differential across the seal stage adjacent the region of low fluid pressure.

REFERENCES:
patent: 885032 (1908-04-01), De Ferranti
patent: 1773067 (1930-08-01), Ver Planck
patent: 1779076 (1930-10-01), Ray
patent: 2543615 (1951-02-01), Trumpler

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