| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve cooling of a tip of a turbine blade.SOLUTION: A tip of a turbine blade includes a tip shelf through which one or more diffuser cooling holes pass. The diffuser cooling holes direct the flow of cooling gas along the tip shelf, spreads the flow of cooling gas more evenly along the tip shelf and enhances the formation of a curtain of cooling air along the tip shelf, leading to lower blade tip temperatures, reduced diversion of cooling air, and greater turbine blade life.</p> |
