Disc channel for cooling rotor blade roots

Details Disc channel for cooling rotor blade roots Disc channel for cooling rotor blade roots

1978-11-30

1981-06-30

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

With heating, cooling or thermal insulation means

416220R, F01D 518, F01D 530

Patent

active

042759900

ABSTRACT:
A turbine disc for a bladed rotor assembly includes a rim, a plurality of generally axially extending slots in the rim adapted to receive the roots of rotor blades, the radially innermost surfaces of all of said slots lying at a first radius, a continuous circumferential flange projecting axially from the rim of the disc on at least one side face thereof, said flange providing a continuous circumferentially extending surface at a radius less than said first radius and being connected to the disc at a radius greater than said first radius, and a continuous circumferentially extending cooling air channel open towards the radially inner side of the flange, and extending radially outwardly between the flange and the side face of the disc to an extent sufficient to intersect the bottom and a portion of at least one of the flanks of each of the blade root-receiving slots.

REFERENCES:
patent: 2647368 (1953-08-01), Triebbnigg et al.
patent: 2951340 (1960-09-01), Howald
patent: 3437313 (1969-04-01), Moore
patent: 3490852 (1970-01-01), Carlstrom et al.
patent: 3575528 (1971-04-01), Beam et al.
patent: 3678555 (1972-07-01), Hansen
patent: 3689176 (1972-09-01), Howell et al.
patent: 3748060 (1973-07-01), Hugoson et al.
patent: 3849025 (1974-11-01), Grondahl
patent: 3888601 (1975-06-01), Glassburn
patent: 4033705 (1977-07-01), Luebering
patent: 4221542 (1980-09-01), Acres et al.

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