Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Blade received in well or slot
Patent
1992-08-17
1993-11-02
Kwon, John T.
Fluid reaction surfaces (i.e., impellers)
Specific working member mount
Blade received in well or slot
416219R, F01D 530
Patent
active
052579093
ABSTRACT:
A sealing device for compressor axial dovetail rotor blades for a gas turbine engine comprising a sealing member having a finger portion extending from a main body portion which engages a disk hook located on each disk post and forms a first point of contact about which the sealing member rotates. The sealing member further comprises an extended skirt portion which engages the blade platform of the rotor blades forming a second point of contact. The main body has a center of gravity positioned such that during operation of the engine the main body pivots due to centrifugal force about the disk hook such that the skirt portion engages the blade platform. A split ring is located between the disk posts and a tail portion extending from the lower portion of the sealing member and engages the disk post and tail portion during operation of the engine thereby forming a third point of contact. The combination of the skirt element contacting the blade platform and the split ring contacting the tail portion and the disk posts effectively prevents any leakage axially through the rotor blade dovetail.
REFERENCES:
patent: 4470757 (1984-09-01), Vollinger
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patent: 4558988 (1985-12-01), Kisling et al.
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patent: 4854821 (1989-08-01), Kernon et al.
patent: 4890981 (1990-01-01), Corsmeier et al.
patent: 5052893 (1991-10-01), Catte
patent: 5169289 (1992-12-01), Lalanne
Fallon Richard J.
Glynn Christopher C.
Lammas Andrew J.
Walker Roger C.
General Electric Company
Kwon John T.
Squillaro Jerome C.
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