Turbine blade plateform sealing and vibration damping apparatus

Details Turbine blade plateform sealing and vibration damping apparatus Turbine blade plateform sealing and vibration damping apparatus

1987-08-05

1989-10-10

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Axially extending shroud ring or casing

416193A, 416500, F01D 522

Patent

active

048728128

ABSTRACT:
A gas turbine rotor blade platform sealing and damping system has elongated symmetrical insert elements of equilateral triangular cross-section loosely received within complementary shaped pockets at the spacing gaps between opposing convex and concave airfoil side edges of adjacently mounted blade platforms. The inserts and pockets are relatively configured to provide self-orientation of the inserts into gap sealing and vibration damping engagement with the platform edges when acted upon by centrifugal force due to rotor rotation. The convex platform edge is thickened at the point of closest proximity with the convex side of the airfoil. Alternative embodiments utilize insert grooves for increased leakage of cooling gas past the platform edges and incorporate a central bore for mass reduction.

REFERENCES:
patent: 2912223 (1959-11-01), Hull
patent: 2999631 (1961-09-01), Wollmershauser
patent: 3295825 (1967-01-01), Hall
patent: 3666376 (1972-05-01), Damlis
patent: 3918842 (1975-11-01), Longley et al.
patent: 3936222 (1976-02-01), Asplund et al.
patent: 4101245 (1978-07-01), Hess et al.
patent: 4177013 (1979-12-01), Patterson et al.
patent: 4455122 (1984-06-01), Schwarzmann et al.
patent: 4505642 (1985-03-01), Hill
patent: 4743164 (1988-05-01), Kalogeros

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