Cooled aerofoil blade or vane
US8662825B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2010 |
| Grant date | Mar 4, 2014 |
| Priority date | — |
| Expiry date | Sep 26, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2270/17
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An aerofoil blade or vane suitable for the turbine of a gas turbine engine includes an extending aerofoil portion having facing wall parts interconnected by a divider member to partially define first and second cooling fluid passage portions. The first and second passage portions are interconnected in a series fluid flow relationship by a bend passage portion. The first passage portion directs cooling fluid to the bend portion and the second passage portion exhausts cooling fluid from the bend portion. The divider member provides a localised contraction of the downstream end of the first passage portion to accelerate the cooling fluid flow before it enters the bend passage portion. The divider member provides a localised progressive series narrowing and opening of the upstream end of the second passage portion in the general direction of cooling fluid flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.