Balance piston and seal arrangement

Details Balance piston and seal arrangement Balance piston and seal arrangement

F - Mech Eng,Light,Heat,Weapons

04

D

230/131, 277/15

F04D 29/08 (2006.01) F04D 29/04 (2006.01) F04D 29/10 (2006.01)

Patent

CA 2020835

An Abstract of the Disclosure A labyrinth seal is provided to isolate the transmission from a balance piston of a centrifugal compressor, the labyrinth seal being pressurized with refrigerant vapor from the motor chamber, which vapor is at a pressure slightly above that in the transmission, to thereby minimize the efficiency losses that would otherwise occur from leakage of the vapor into the transmission and to the compressor suction.

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