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

F - Mech Eng,Light,Heat,Weapons

04

D

230/131

F04D 29/12 (2006.01) F16J 15/00 (2006.01) F16J 15/38 (2006.01)

Patent

CA 1173806

DIFFERENTIAL PRESSURE CONTROL FOR GAS SEAL IN TURBO MACHINERY Abstract of the Disclosure 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.

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