公开(公告)号：WO2015077067A1

公开(公告)日：2015-05-28

申请号：PCT/US2014/064762

申请日：2014-11-10

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： CARR, Jesse, M.

IPC: F02C7/04 ,  F01D5/00 ,  F01D9/00

CPC classification number: F23R3/002 ,  F01D5/143 ,  F01D9/023 ,  F01D9/041 ,  F01D17/105 ,  F01D25/24 ,  F01D25/30 ,  F04D29/522 ,  F05D2220/32 ,  F05D2250/184 ,  F05D2250/73

Abstract: An engine component includes a gaspath wall defining a radially outward facing gaspath surface and an opposed non-gaspath surface. The gaspath surface defines a non-axisymmetric contour with a respective point of minimum radius for each axial position. The non-gaspath surface defines an axisymmetric contour. Each axial position on the axisymmetric contour defines a circle offset from the respective point of minimum radius of the gaspath surface by a predetermined minimum wall thickness. The predetermined minimum wall thickness is substantially constant as a function of axial position. A similar predetermined minimum wall thickness and axisymmetric non-gaspath surface contour can be applied to a gaspath wall with a radially inward facing gaspath surface defining a non-axisymmetric contour.

Abstract translation: 发动机部件包括限定径向向外的气路表面和相对的非气道表面的气路径壁。 气路表面为每个轴向位置定义了具有相应的最小半径点的非轴对称轮廓。 非气道曲面表示轴对称轮廓。 轴对称轮廓上的每个轴向位置限定了从气路表面的最小半径的相应点偏移预定最小壁厚的圆。 预定的最小壁厚度作为轴向位置的函数基本上是恒定的。 类似的预定最小壁厚和轴对称非气道表面轮廓可以应用于具有限定非轴对称轮廓的径向向内的气路面的气路径壁。