Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Blade received in well or slot
Patent
1993-03-17
1994-06-07
Kwon, John T.
Fluid reaction surfaces (i.e., impellers)
Specific working member mount
Blade received in well or slot
416 95, F01D 532
Patent
active
053184050
ABSTRACT:
An anti-rotation system for an interstage seal located in a gas turbine engine of a type having a turbine section including a first stage disk and a second stage disk, each having a plurality of dovetail slots. The interstage seal is located between the disks and includes a web portion having a forward arm and an aft arm, the aft arm having a bayonet connection for preventing relative axial movement between the second stage disk and the seal The interstage seal anti-rotation system includes a key positioned in at least one dovetail slot and having a tab for interconnecting with a slot formed in the aft arm bayonet connection. The key prevents relative circumferential movement between the interstage seal and the second stage disk An aft seal plate is provided for retaining the key in the interconnected position between the seal and the second stage disk. The key is contoured to coincide with the dovetail slot for maximizes the translation of tangential load from the interstage seal to the second stage disk, and includes a slot formed along its length for allowing blade cooling air to flow radially outward to the turbine blades.
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Albrecht Richard W.
Meade Robert J.
General Electric Company
Herkamp Nathan D.
Kwon John T.
Squillaro Jerome C.
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