| 摘要 |
PCT No. PCT/JP96/03397 Sec. 371 Date Oct. 14, 1997 Sec. 102(e) Date Oct. 14, 1997 PCT Filed Nov. 20, 1996 PCT Pub. No. WO97/19257 PCT Pub. Date May 29, 1997A gas turbine blade having a plurality of shower head cooling holes (1), bored in a blade leading edge portion, are arranged along a single line which is biased so as to correspond to the direction of swirling flow in a combustor. The swirling flow is clockwise or counter-clockwise. In particular, if the flow is clockwise, the cooling holes (1) are biased to the left hand side, as seen from upstream of the blade, toward a blade hub side (HS) from a blade tip side (TS). Also, if the flow is counter-clockwise, the cooling holes (1) are arrayed on one line which is biased to the reverse side relative to the latter case. The influence of the swirling flow is thus avoided, and the pressure at each position of the cooling holes (1) is constant, so that uniform cooling can be attained.
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