| 摘要 |
PROBLEM TO BE SOLVED: To provide a useful method of cooling the casing of a low pressure turbine case for a gas turbine engine with the flow of cooling air between a shroud and the case. SOLUTION: A front flange 16 is suspended down from a front end 18 of a circular shell 12 and a front hook 22 extends backward from the front flange 16 in the axial direction. First and second rails 23, 25 having first and second hooks 24, 26, respectively, extend backward from the circular shell 12 to the axial direction. First and second cooling holes 27, 29 extend through the first and second rails 23, 25. A cooling air supply hole 28 extends through the flange 16. The first and second cooling holes 27, 29 are arranged extending through the first and second rails 23, 25, respectively, in the radial direction from a center line 14 or arranged extending through the first and second rails 23, 25, respectively, at an inclination of 30°to the center line 14. COPYRIGHT: (C)2004,JPO
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