Method of establishing hook diameters on diaphragm packing ring

Details Method of establishing hook diameters on diaphragm packing ring Method of establishing hook diameters on diaphragm packing ring

1998-04-28

1999-11-09

Verdier, Christopher

Rotary kinetic fluid motors or pumps

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

Labyrinth seal

4151701, 4151731, 4151735, 4151737, 415230, 2940202, 2940203, 2940208, 2940209, 2940211, 2940213, 2940216, 298891, 2988921, F01D 1102, B23P 600

Patent

active

059802049

ABSTRACT:
A turbine diaphragm for accommodating a rotor, comprising a diaphragm body having a radially inner bore and an inwardly recessed dovetail groove; a plurality of packing ring segments, each having a dovetail located within the dovetail groove; wherein the dovetail groove includes a hook portion which defines a radial opening into the groove and wherein the hook portion includes surfaces establishing a hook diameter having a center defined by the center of the rotor; and wherein the hook portions are radially outwardly extended by discrete elements installed axially in opposite directions through the diaphragm and projecting into the dovetail groove.

REFERENCES:
patent: 4924581 (1990-05-01), Jakobsen
patent: 5149248 (1992-09-01), Cramer
patent: 5374068 (1994-12-01), Jewett et al.
patent: 5487549 (1996-01-01), Dalton et al.
patent: 5503405 (1996-04-01), Jewett et al.
patent: 5524340 (1996-06-01), Galbraith et al.
patent: 5599026 (1997-02-01), Sanders et al.
patent: 5601403 (1997-02-01), Galbraith et al.

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