| 摘要 |
A vane assembly, preferably a nozzle guide vane, comprises a body 26 defining a chamber 27 having a baffle arrangement 34 within extending across a plurality of cooling aperture arrays 29, the apertures 28 extending through body 26, the arrays 29 parallel to streamlines of gas flow across the external of the body 26. The arrangement 34 may comprise baffle member 36, mounted upon support member 38, preferably providing first and second gas deflection services 42, 44, preferably extending across arrays 29 parallel to each other, possibly angled relative to the arrays 29, preferably between 10{ to 80{, or between 30{ to 60{ or possibly at 45{ The member 38 is preferably mountable to chamber wall 46, holding formations 48A, 48B, 48C may be provided to hold arrangement 34, and are preferably brackets, possibly defining recesses between them receiving opposing edge regions of member 38. There is preferably a further bracing member 40 between members 36, 38. |
