Ventilation device for a high pressure turbine rotor of a turbomachine
US6916151B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2004 |
| Grant date | Jul 12, 2005 |
| Priority date | — |
| Expiry date | Feb 5, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D5/082
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.