Mounting structure for a packing ring seal segment in a turbine

Details Mounting structure for a packing ring seal segment in a turbine Mounting structure for a packing ring seal segment in a turbine

2007-04-10

2007-04-10

Edgar, Richard A. (Department: 3745)

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

Resilient, flexible, or resiliently biased

C415S231000

Reexamination Certificate

active

11003454

ABSTRACT:
A packing ring holder assembly for packing seal segments about a steam turbine rotor includes a nozzle box and a holder cooperable to form a dovetail for securing packing ring segments to the nozzle box. A spring is interposed between the nozzle box and packing ring segment to bias the latter radially inwardly for sealing with the rotor. The holder includes a shoulder for preventing axial movement of the spring in one direction.

REFERENCES:
patent: 1651855 (1927-12-01), Warren

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