| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hollow aerofoil and its manufacturing method. <P>SOLUTION: This hollow aerofoil 30 includes an aerofoil portion 40 having a leading edge 42, a trailing edge 44, a concave pressure surface wall 46 extending from the leading edge 42 to the trailing edge 44 and a convex suction surface wall 48 extending from the leading edge 42 to the trailing edge 44. The concave pressure surface wall 46 and the convex suction surface wall 48 are integral and define a cavity 50. A plurality of webs 52 extend across the cavity 50 between the concave pressure surface wall 46 and the convex suction surface wall 48. At least one of the webs 52A extends substantially perpendicularly to the concave pressure surface wall 46 and the convex suction surface wall 48, and at least one of the webs 52B extends substantially diagonally to the concave pressure surface wall 46 and the convex suction surface wall 48. <P>COPYRIGHT: (C)2009,JPO&INPIT |
