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

1988-12-27

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

With heating, cooling or thermal insulation means

415175, F01D 508

Patent

active

047937726

ABSTRACT:
The conical section of the hollow shaft of a high pressure compressor behind the last rotor disc is surrounded by an annular protective shield. The shield serves to protect the hollow shaft and the last rotor disc from the main stream of hot compressed air leaving the compressor. Between the hollow shaft and the heat shield a stream of cooling air is furthermore conducted from the vicinity of the axis to the outer region of the last rotor disc. The stream of air then passes through corresponding circumferentially distributed axial holes in the last rotor disc.

REFERENCES:
patent: 2750147 (1956-06-01), Smith
patent: 2858102 (1058-10-01), Bloomberg
patent: 3632221 (1972-01-01), Uehling
patent: 3647313 (1972-03-01), 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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