| 摘要 |
Partitions 8, 11 extending the length of the blade divide the cavity bounded by the outer wall 3 into first, second and third ducts 14, 15, 16. The leading edge area 2 is cooled by air flowing through radial passages 17 in this area and then through the first duct 14. The extrudes face area 5 is cooled by air flowing through radial passages 18 in this area and then through the second duct 15. The intrados face area 7 is cooled by air flowing through the third duct 16. The ducts 14, 15, 16 communicate with the outside of the blade 1 through slits 21, 22, 23 respectively. Cooling fins 20 may be provided in the passages 17. <IMAGE>
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