| 摘要 |
<p>In a gas turbine moving blade, convection of cooling air is promoted to enhance the heat transfer rate, the cooling effect od the shroud is enhanced and the entire cooling effect of the blade is enhanced. A gas turbine moving blade comprises a shroud (12) at a terminal end of a blade (1), wherein cooling air is adapted to be led into said blade to flow from a base portion to the terminal end thereof to be then led into the shroud (12) and to flow out of a multiplicity of cooling passages (19,22) provided in the shroud (12). A first cavity (10) extends in the blade (1) in an entire length thereof, a multiplicity of pin fins (5) are arranged in the first cavity (10) being supported by a wall of the first cavity (10), and the cooling passages (19,22) provided in the shroud (12) are arranged such that each of the cooling passages (19,22) at its one end connects to the first cavity (10) formed in the blade (1) and at its other end opens in one side portion of mutually opposing side portions of the shroud (12).</p> |
