Integral disc seal

Details Integral disc seal Integral disc seal

1995-11-01

1997-02-11

Look, Edward K.

Rotary kinetic fluid motors or pumps

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

Between axial flow runner and vane or vane diaphragm structure

416220R, 416224A, F01D 1102

Patent

active

056014040

ABSTRACT:
A disc for use in an axial flow turbomachine having a main flow annulus which includes an inner flow boundary defined by axially adjacent stator vane and rotor blade platform sections. The disc comprises an axially extending sealing member which extends from its radially outer periphery to bridge the gap between adjacent rotor blade and stator vane platform sections. The sealing member is formed integrally with the disc. The arrangement minimises the unsealed stator well region between the rotatable and non-rotatable platforms and thereby provides for improved operational flow stability.

REFERENCES:
patent: 3023998 (1962-03-01), Sanderson
patent: 3047268 (1962-07-01), Leavitt
patent: 3051436 (1962-08-01), Kent et al.
patent: 3067980 (1962-12-01), Welsh
patent: 3761200 (1973-09-01), Gardiner
patent: 3846899 (1974-11-01), Gross
patent: 4813848 (1989-03-01), Novotny

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