Method and apparatus for cooling a high pressure compressor of a

Details Method and apparatus for cooling a high pressure compressor of a Method and apparatus for cooling a high pressure compressor of a

1987-11-16

1989-02-28

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

With heating, cooling or thermal insulation means

415175, F01D 508

Patent

active

048080730

ABSTRACT:
The hollow shaft of a high pressure compressor is provided in a conically tapering section downstream of the last rotor disc on its inner surface with a vane-like rib arrangement for conveying a stream of cooling air from the vicinity of the axis of the shaft into the outer peripheral regions of the last rotor disc. The stream then passes through corresponding circumferentially distributed axial holes in the rotor disc. In this way, better cooling of the last compressor stages which have been heated by the main stream of air in the compressor and a reduction in the stresses in the structural parts can be obtained.

REFERENCES:
patent: 2750147 (1956-06-01), Smith
patent: 2858102 (1958-10-01), Bloomberg
patent: 3632221 (1972-01-01), Uehling
patent: 3647313 (1973-03-01), Koff
patent: 3742706 (1973-07-01), Klompas
patent: 4657482 (1987-04-01), Neal
SNECMA-SCN Prospectus CFM 2074/11/84 Information Sheet.

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