Positive pressure-actuated brush seal

Details Positive pressure-actuated brush seal Positive pressure-actuated brush seal

1998-03-25

2000-10-31

Knight, Anthony

Seal for a joint or juncture

Seal between relatively movable parts

Brush seal

277301, 277303, F16J 1532

Patent

active

061390186

ABSTRACT:
A brush seal includes a plurality of bristles in a circumferential array secured to a fixed component and about a rotary component. The bristles are cantilevered toward the rotary component at an angle to the radii of the rotary component with the bristle tips engaged against the rotary component. The bristles are supported by plates on opposite axial sides of the bristles. The plates have channels for directing fluid under pressure into the channels and against the bristles to deflect or bend the bristles toward the rotary component so that the tips of the bristles bear against the surface of the rotary component, enhancing the seal.

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