To provide a combustor part that contributes effectively and efficiently to a cooling action on a combustor liner so as to cause a reduction in effects of a local temperature gradient and high pressure loss.
The combustor part includes a hollow cylindrical body which is provided with a plurality of annular shoulders (26) axially separated from one another in at least one section (122) of the hallow cylindrical body. A plurality of rings (124) is provided on inner surfaces of the sections of the cylindrical body so that the rings align with the annular shoulders to form a plurality of similar annular slots (128). In the sections of the cylindrical body, a plurality of cooling holes (130) is provided in such a manner as to overlap radially the rings, thus supplying cooling air to the annular slots. On radial outer surfaces of the rings (124), there is provided a plurality of diffusers (32) of stream so that the diffusers align with the cooling holes (130), thus diffusing the cooling air flowing through the cooling holes (130).
Hirokazu Ogura
Toshihisa Kurokawa
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