| 摘要 |
PROBLEM TO BE SOLVED: To provide a turbine rotor blade with enhanced cooling of a tip portion thereof.SOLUTION: A turbine rotor blade includes a tip portion having a pressure tip wall, a suction tip wall, a tip leading edge and a tip trailing edge. The turbine rotor blade also includes a squealer cavity at least partially defined by the pressure tip wall and the suction tip wall. The turbine rotor blade further includes at least one hole defined by the suction tip wall, the at least one hole configured to bleed cooling air out of the squealer cavity into a hot gas path to reduce pressure within the squealer cavity. The turbine rotor blade yet further includes a main body having a suction side wall and a pressure side wall each extending from a root portion of the turbine rotor blade to the tip portion.SELECTED DRAWING: Figure 1 |
