发明名称 |
TEARDROP FILM COOLED BLADE |
摘要 |
A turbine blade (10) includes an airfoil (12) having an internal cooling circuit (30) with a first flow passage (34) disposed directly behind the leading edge (22) followed by a second flow passage (36) separated therefrom by a corresponding bridge (38). The bridge (38) includes a row of impingement apertures (40) for cooling the leading edge. The suction sidewall (20) of the airfoil includes a row of diffusion film cooling first holes (42) extending in flow communication with the first passage (34). The first holes (42) have a compound inclination angle, with a quadrilateral cross section forming a generally teardrop shaped outlet (46) in the convex contour of the suction sidewall. |
申请公布号 |
CA2480989(A1) |
申请公布日期 |
2005.03.17 |
申请号 |
CA20042480989 |
申请日期 |
2004.09.09 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
HEEG, ROBERT JOHN;KUMAR, GANESH NAGAB;SCHMID, SCOTT JOSEPH;NORTON, BRIAN ALAN |
分类号 |
F01D5/18 |
主分类号 |
F01D5/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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