Differential pressure control for gas seal in turbo machinery

Details Differential pressure control for gas seal in turbo machinery Differential pressure control for gas seal in turbo machinery

1980-10-06

1983-10-11

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 29, 277 85, 277177, F16J 1534

Patent

active

044087659

ABSTRACT:
For limiting leakage of a high pressure buffer gas supply about the gas seal in a turbo compressor, the sliding face on the inward diameter of the seal includes a plurality of axially spaced annular O-ring seals positioned in tandem staged sealing relation thereat. Communicating from between each juxtaposed pair of O-ring seals is a bleed port enabling inter-O-ring pressure to be controlled for any overall pressure differential that is encountered.

REFERENCES:
patent: 2509912 (1950-05-01), Eliasson
patent: 2971783 (1961-02-01), Laser
patent: 2979350 (1961-04-01), Lansky
patent: 3026112 (1962-03-01), Mayer
patent: 3460844 (1969-08-01), Whittle
patent: 3905450 (1975-09-01), Persson
patent: 4099728 (1978-07-01), Wiese
patent: 4114900 (1978-09-01), Wiese

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