Ventilation device for a high pressure turbine rotor of a...

Details Ventilation device for a high pressure turbine rotor of a... Ventilation device for a high pressure turbine rotor of a...

2005-07-12

2005-07-12

Verdier, Christopher (Department: 3745)

Rotary kinetic fluid motors or pumps

With passage in blade, vane, shaft or rotary distributor...

C415S116000, C415S117000, C415S173700, C415S174500, C060S806000

Reexamination Certificate

active

06916151

ABSTRACT:
A ventilation device for a high pressure turbine rotor in a turbomachine, the turbine comprising upstream and downstream turbine disks fitted with blades, the device comprising a cooling circuit being supplied by a cooling airflow D taken from the back of the combustion chamber. The circuit is such that the airflow passes through orifices formed in an upstream flange of the upstream disk, such that this airflow circulates in the axial direction towards the downstream side between an inner reaming of the upstream disk and a downstream flange of the downstream disk, the device also comprising a labyrinth inserted between the two disks, such that the airflow is divided into a first flow F1 and a second flow circulating on each side of labyrinth towards the blades.

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