Turbine rotor disk and blade assembly

Details Turbine rotor disk and blade assembly Turbine rotor disk and blade assembly

1987-10-14

1989-03-21

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

With heating, cooling or thermal insulation means

416213R, 416244A, F01D 518

Patent

active

048138487

ABSTRACT:
A turbine rotor with air cooled blades has a turbine disk and a continuous hoop circumferential turbine rim bonded thereto. The rim has a plurality of circumferential rings extending toward the disk and forming circumferential chambers therebetween.
Near the outer edge of the turbine rim are transversely extending openings. The rim is wire cut from these openings from the outer periphery forming segmented blade platforms, allowing the thermal expansion of the platform to occur. Tubes within the openings convey cooling air to the circumferential chambers, from which it passes to the blade interiors and through cooling openings in the platforms.

REFERENCES:
patent: 2380276 (1945-07-01), Warren
patent: 3588276 (1971-06-01), Jubb
patent: 3658439 (1972-04-01), Kydd
patent: 3730644 (1973-05-01), Jubb
patent: 3749514 (1973-07-01), Kelch et al.
patent: 3847506 (1974-11-01), Straniti
patent: 4047837 (1977-09-01), Hueber et al.
patent: 4062638 (1977-12-01), Hall
patent: 4152816 (1979-05-01), Ewing et al.
patent: 4156051 (1979-05-01), Nakamura
patent: 4312625 (1982-01-01), Pinaire
patent: 4668167 (1987-05-01), LeMaout

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