Bladed rotor assembly for a gas turbine engine

Details Bladed rotor assembly for a gas turbine engine Bladed rotor assembly for a gas turbine engine

1977-02-01

1978-08-22

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Blade received in well or slot

416 95, F01D 532

Patent

active

041085710

ABSTRACT:
A bladed rotor assembly for a gas turbine comprises blades whose roots are held in slots in a blade carrying member. In order to retain the blades against movement in the slots locking members engage with the blades and the member. At least one of the engagements comprises a projection defining an undercut into which an edge of the locking member engages. In order to reduce frettage, the edge and the undercut are shaped to form a groove which tapers so that its section reduces in the radially outward direction, and a wedging member is mounted in the groove so that it tends to centrifuge outward in the groove and wedge the edge in the undercut against a wall of the undercut.

REFERENCES:
patent: 3501249 (1970-03-01), Scalzo et al.
patent: 3572966 (1971-03-01), Borden et al.
patent: 3853425 (1974-12-01), Scalzo et al.
patent: 3887298 (1975-06-01), Hess et al.
patent: 3936227 (1976-02-01), Wojcik
patent: 3957393 (1976-05-01), Bandurick
patent: 4021138 (1977-05-01), Scalzo et al.

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