Turbine rotor blade arrangement for a gas turbine and method for the provision of sealing air in a turbine rotor blade arrangement
US10619490B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2017 |
| Grant date | Apr 14, 2020 |
| Priority date | — |
| Expiry date | Jun 1, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/201
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A turbine rotor blade arrangement for a gas turbine, having a turbine disc and a turbine rotor blade ring that comprises a plurality of rotor blades. The turbine disc has disc channels for providing air, wherein a disc channel respectively ends in a discharge hole in the area of a blade root reception area. The rotor blades have cooling air channels for cooling the rotor blades. In the blade root or between the blade root and the blade root reception area, an air channel is formed via which sealing air is discharged that is fed in from the disc channel. It is provided that the blade root comprises a deflection device that is provided and is configured for the purpose of partially deflecting air exiting the disc channel in the direction of the air channel. Another embodiment of the invention relates to a method for the provision of sealing air in a turbine rotor blade arrangement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.