F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
F01D 5/18 (2006.01) F01D 5/22 (2006.01) F01D 25/12 (2006.01)
Patent
CA 2261107
In gas turbine moving blade, convection of cooling air is promoted to enhance heat transfer rate, cooling effect of shroud is enhanced and entire cooling effect of the blade is enhanced. Inner cavity 10 is formed in the blade in entire length thereof. Multiplicity of pin fins 5 are provided in the inner cavity being fixed to wall thereof. Enlarged cavity 6 is formed in shroud 2 of terminal end of the blade 1. Cooling air entering the inner cavity 10 of the blade 1 flows into the enlarged cavity 6 and is flown out of the shroud 2 downwardly through holes 7 of peripheral portion of the enlarged cavity 6. Entire portion of the shroud 2 is cooled uniformly and cooling effect of entire blade is enhanced by enhanced heat transfer rate in the blade and by uniform cooling of entire shroud.
Akita Eiji
Fukue Ichiro
Suenaga Kiyoshi
Tomita Yasuoki
Mitsubishi Heavy Industries Ltd.
Riches Mckenzie & Herbert Llp
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