Turbine blade attachment means

Details Turbine blade attachment means Turbine blade attachment means

1993-12-23

1995-06-20

Denion, Thomas E.

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Blade received by continuous circumferential channel

416219R, F01D 530

Patent

active

054256224

ABSTRACT:
The multi-lug attachment of the blades to the disk of a turbine rotor of a gas turbine engine, where the blades are air-cooled, optimizes weight reduction and tensile stress by attachment including a pair of lugs that transitions from a contoured airfoil to a pair of parallel rails releasably attached to complementary recesses formed in the disk. One lug is transitioned from the pressure surface to the attachment surface and the other lug is transitioned from the suction surface to the attachment surface. The lugs are tapered to optimize the attachment.

REFERENCES:
patent: 3294365 (1966-12-01), Wilde et al.
patent: 3597109 (1971-08-01), Petrie
patent: 5018941 (1991-05-01), Heurtel et al.
patent: 5135354 (1992-08-01), Novotny

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