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Title: Steam turbine high pressure vent and seal system

Patent ·
OSTI ID:6555617

A steam turbine is described comprising: an outer cylinder; an inner cylinder disposed within the outer cylinder; a blade ring disposed partially within the inner cylinder and partially within the outer cylinder; a nozzle chamber assembly disposed within the inner cylinder for introducing motive steam to the turbine and having nozzle chamber and nozzle block portions; a rotor having circular array of rotatable blades and a thrust balance piston disposed thereon; a dummy ring disposed within one end of the inner cylinder adjacent the balance piston; labyrinth sealing means disposed between the dummy ring and the balance piston forming a rotating seal.

Assignee:
Westinghouse Electric Corp., Pittsburgh, PA
Patent Number(s):
US 4661043
OSTI ID:
6555617
Resource Relation:
Patent File Date: Filed date 23 Oct 1985
Country of Publication:
United States
Language:
English