Improved low cycle fatigue life (lcf) impeller design concept

Details Improved low cycle fatigue life (lcf) impeller design concept Improved low cycle fatigue life (lcf) impeller design concept

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 5/04 (2006.01) F01D 25/14 (2006.01)

Patent

CA 2487960

A rotor assembly for a gas turbine engine, having a rotor member with axially spaced-apart front and rear end portions. A thermal shield is located axially downstream of the rear end portion of the rotor for thermally shielding the same from the hot surrounding environment. The thermal shield includes a rear coverplate and an axial gap between the rear coverplate and the rear end portion of the rotor member.

L'invention concerne un ensemble rotor destiné à un moteur à turbine à gaz et comprenant un élément de rotor possédant des parties d'extrémité avant et arrière axialement espacées. Un élément de protection thermique est disposé axialement en aval de la partie d'extrémité arrière du rotor de sorte à protéger ce dernier contre la chaleur environnante. L'élément de protection thermique comprend une plaque de recouvrement arrière et un espace axial situé entre la plaque de recouvrement arrière et la partie d'extrémité arrière de l'élément de rotor.

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