Device for straightening the flow of air fed to a centripetal bleed in a compressor
US6908278B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2003 |
| Grant date | Jun 21, 2005 |
| Priority date | — |
| Expiry date | Jan 22, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/584
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An axial compressor for a turbomachine is fitted with a device for centripetally bleeding turbine-cooling air. The compressor includes at least two rings of blades, an outer shroud having holes, and a fixed ring of stator vanes placed in the stream between the moving rings of blades. The holes are inlets for the bleed device, opening out into an annular groove beneath the interstice separating the inner platforms of the stator vanes from the rim of the upstream disk. The groove is fitted with fixed air guide devices to impart a centripetal swirling motion to the air flowing therein in the same direction as the compressor so as to reduce the velocity of the air relative to the rotating holes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.