<p>Mounting platforms (20) which support gas turbine blades are subjected to hot gas flows which can enter the gaps (12) between segments. The heating effect is reduced by shaping the segment edges (30) on the downstream side of each gap. This produces a velocity component in the hot gas flow, normal to the gap and draws in cooling gas flows through the gap or through cooling ducts in the segments. The cooling gasses form a barrier layer over the segments without affecting gas turbine performance.</p>
申请公布号
EP0902167(B1)
申请公布日期
2003.10.29
申请号
EP19970810659
申请日期
1997.09.15
申请人
ALSTOM (SWITZERLAND) LTD
发明人
ANDERSON, GORDON;FERBER, JOERGEN;HALL, KENETH;HOCK, MICHAEL;TARADA, FATHI, DR.;WEIGAND, BERNHARD, DR.