Arrangement for the thermal protection of a rotor of a high-pres

Details Arrangement for the thermal protection of a rotor of a high-pres Arrangement for the thermal protection of a rotor of a high-pres

1997-03-21

1998-12-01

Verdier, Christopher

Fluid reaction surfaces (i.e., impellers)

With heating, cooling or thermal insulation means

416198A, 416215, F01D 508, F01D 532

Patent

active

058428313

ABSTRACT:
An arrangement for the thermal protection of a rotor, fitted with moving blades, of a high-pressure compressor. The roots of the moving blades are inserted and locked in peripheral grooves which are at an axial distance from one another. The rotor has, between two adjacent peripheral grooves for the moving blades, at least one further peripheral groove having a hook extending over the entire periphery of the rotor. At least two plate-shaped heat-accumulation segments, each having at least one root which has a contour adapted to the hook of the rotor so that both form a contact area, are pushed radially one after the other into the further peripheral groove and locked therein. A cavity forming an insulating layer extends between the heat-accumulation segments and the rotor and between the moving-blade roots and the rotor, in which insulating layer the velocity of the compressor air is greatly reduced.

REFERENCES:
patent: 2772854 (1956-12-01), Anxionnaz
patent: 3143383 (1964-08-01), Bamberger et al.
patent: 5232336 (1993-08-01), Baer et al.
patent: 5308227 (1994-05-01), Gros et al.
patent: 5630702 (1997-05-01), Marmillic et al.

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