Circuit for ventilating compressor and turbine disks

Details Circuit for ventilating compressor and turbine disks Circuit for ventilating compressor and turbine disks

1993-04-21

1994-07-12

Bennet, Henry A.

Power plants

Combustion products used as motive fluid

60 3975, 415115, 415116, F02C 618

Patent

active

053277198

ABSTRACT:
A turbo-engine includes a compressor connected by a shaft to a turbine and includes a plurality of disk stages subjected to a thermal gradient, a gas vein in which the gas circulates from upstream to downstream of the compressor, and a mechanism for ventilating the disks so as to limit their thermal gradient. The ventilation mechanism includes at least, a first and a second source for obtaining the gas from the vein, as well as an operating device so as to independently bring the gas obtained from the first source and the gas obtained from the second source to the disks of the compressor and the turbine. The operating device includes a gas pipe coaxial and outside the shaft, wherein between the pipe and the shaft a cylindrical passage for the gas is provided.

REFERENCES:
patent: 2620123 (1952-12-01), Parducci
patent: 2653446 (1953-09-01), Price
patent: 3751909 (1973-08-01), Kohler
patent: 3826084 (1974-07-01), Branstrom et al.
patent: 3943703 (1976-03-01), Kronogard
patent: 4034558 (1977-07-01), Korta et al.
patent: 4137705 (1979-02-01), Andersen et al.
patent: 4213296 (1980-07-01), Schwarz
patent: 5048288 (1991-09-01), Bessette et al.
patent: 5134844 (1992-08-01), Lee et al.
patent: 5144794 (1992-09-01), Kirikami et al.
patent: 5174105 (1992-12-01), Hines
Patent Abstracts of Japan, vol. 9, No. 142 (M-388)(1865), Jun. 18, 1985, JP-A-60 22 003.

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