Seal arrangement

Details Seal arrangement Seal arrangement

1991-12-19

1993-06-29

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 53, 4151745, F16J 15447

Patent

active

052227421

ABSTRACT:
An air seal is disposed between high and low pressure zones and includes an annular static arm and coaxial annular sealing arm which rotates relative to the static arm. The static arm, is scalloped to form a series of cavities and the sealing arm is formed with angled through holes opposite the cavities. A seal is provided between the static arm and the sealing arm. In use, a ram pressure rise is generated in the holes by the rotation of the sealing arm and the pressure rise creates a flow of air which offsets the leakage past the seal.

REFERENCES:
patent: 3251601 (1966-05-01), Harvey
patent: 4534701 (1985-08-01), Wisser
patent: 5088889 (1992-02-01), Wolff

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