COOLING HOLE WITH ENHANCED FLOW ATTACHMENT

申请公布号：

EP2815113(A4)

申请号：

EP20130785247

申请日期：

2013.02.12

申请公布日期：

2015.12.30

申请人：

UNITED TECHNOLOGIES CORPORATION

发明人：

XU, JINQUAN;LEVASSEUR, GLENN

分类号：

F01D5/18;F01D9/06;F23R3/00;F23R3/06

主分类号：

F01D5/18

摘要：

A gas turbine engine component includes a wall having first and second wall surfaces, a cooling hole extending through the wall and a convexity. The cooling hole includes an inlet located at the first wall surface, an outlet located at the second wall surface, a metering section extending downstream from the inlet and a diffusing section extending from the metering section to the outlet. The diffusing section includes a first lobe diverging longitudinally and laterally from the metering section and a second lobe adjacent the first lobe and diverging longitudinally and laterally from the metering section. The convexity is located near the outlet.