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公开(公告)号：WO2013165511A3
公开(公告)日：2014-01-03
申请号：PCT/US2013025716
申请日：2013-02-12
Applicant: UNITED TECHNOLOGIES CORP
Inventor： LEVASSEUR GLENN , PIETRASZKIEWICZ EDWARD F , ZELESKY MARK F , MONGILLO DOMINIC J , KLINEFELTER KEVIN J , DOLL STEPHEN D , FRITCH MARKUS W
CPC classification number: B23H9/10 , B23H1/00 , B23H7/26 , B23H9/14 , F01D5/186 , F01D9/065 , F05D2240/81 , F05D2260/202 , F23R3/002 , F23R2900/03042 , Y02T50/676
Abstract: A method for forming a cooling hole extending from an inlet on a first surface of a wall to an outlet on a second surface of the wall includes forming a diffusing section of the cooling hole, and a trailing edge on the outlet by electrical discharge machining, and forming longitudinal lobes in the diffusing section. The metering section extends from the inlet on a first surface of the wall towards the second surface of the wall. The diffusing section extends from the outlet to one end of a metering section located between the inlet and the outlet. The outlet is substantially linear or convex at the trailing edge and the lobes are separated by longitudinal ridges.
Abstract translation: 用于形成从壁的第一表面上的入口延伸到壁的第二表面上的出口的冷却孔的方法包括：通过放电加工形成冷却孔的扩散部分和出口上的后缘， 并在扩散段中形成纵向凸起。 计量部分从壁的第一表面上的入口延伸到壁的第二表面。 扩散部分从出口延伸到位于入口和出口之间的计量部分的一端。 出口在后缘处基本上是线性的或凸起的，并且叶片由纵向脊部分开。
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公开(公告)号：SG138539A1
公开(公告)日：2008-01-28
申请号：SG2007040470
申请日：2007-06-06
Applicant: UNITED TECHNOLOGIES CORP
Inventor： KOHLI ATUL , STAUBACH JOSEPH B , DOLL STEPHEN D
Abstract: A cooling hole for a gas turbine engine component has a bi-lobed shape to improve cooling effectiveness. The gas turbine engine component has a first outer surface and a second outer surface separated from each other by a thickness. The cooling hole extends through the thickness from a first opening at the first outer surface to a second opening at the second outer surface. The first and second openings are defined by shapes that are different from each other. One of the first and second openings has the bi- lobed shape.
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公开(公告)号：EP2815109A4
公开(公告)日：2016-03-02
申请号：EP13785031
申请日：2013-02-12
Applicant: UNITED TECHNOLOGIES CORP
Inventor： LEVASSEUR GLENN , PIETRASZKIEWICZ EDWARD F , ZELESKY MARK F , MONGILLO DOMINIC J , KLINEFELTER KEVIN J , DOLL STEPHEN D , FRITCH MARKUS W
CPC classification number: B23H9/10 , B23H1/00 , B23H7/26 , B23H9/14 , F01D5/186 , F01D9/065 , F05D2240/81 , F05D2260/202 , F23R3/002 , F23R2900/03042 , Y02T50/676
Abstract: A method for forming a cooling hole extending from an inlet on a first surface of a wall to an outlet on a second surface of the wall includes forming a diffusing section of the cooling hole, and a trailing edge on the outlet by electrical discharge machining, and forming longitudinal lobes in the diffusing section. The metering section extends from the inlet on a first surface of the wall towards the second surface of the wall. The diffusing section extends from the outlet to one end of a metering section located between the inlet and the outlet. The outlet is substantially linear or convex at the trailing edge and the lobes are separated by longitudinal ridges.
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