Segmented stator vane seal

Details Segmented stator vane seal Segmented stator vane seal

1991-11-01

1992-10-27

Kwon, John T.

Rotary kinetic fluid motors or pumps

Including thermal expansion joint

415139, F01D 2524

Patent

active

051584301

ABSTRACT:
A "dog bone" in cross section shaped seal mounted in adjacent grooves of segmented stator vanes span the axial extent covering a single casted three rows of vanes. The outer diameter shroud of the stator vane defines a portion of an enclosed cavity subjected to leakage flow in and out of the gas path where the flow reverses at some axial extent of the seal such that the forces acting at different locations on the seal reverses. In a preferred embodiment, the bulbous ends of the "dog bone" are solid coated metallic material.

REFERENCES:
patent: 2863634 (1958-12-01), Chamberlin et al.
patent: 3752598 (1973-08-01), Bowers et al.
patent: 3892497 (1975-07-01), Gunderlock et al.
patent: 4337016 (1982-06-01), Chaplin
patent: 4537024 (1985-08-01), Grosjean
patent: 4714404 (1987-12-01), Lardellier
patent: 4902198 (1990-02-01), North

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