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

IPC: F02C7/18 ,  F01D5/08 ,  F01D25/12 ,  F02K3/00

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。

公开(公告)号：EP2971539A4

公开(公告)日：2016-06-22

申请号：EP13866646

申请日：2013-12-06

Applicant: UNITED TECHNOLOGIES CORP

Inventor： KOONANKEIL JAMES M ,  PIETRASZKIEWICZ EDWARD F ,  SCHACHTNER KARL A ,  KLINEFELTER KEVIN J ,  FRITCH MARKUS W ,  DALEY JASON

IPC: F01D5/18 ,  B23H9/10 ,  B23H9/14 ,  F01D25/12 ,  F02C7/18

CPC classification number: B23H1/00 ,  B23H7/265 ,  B23H7/30 ,  B23H9/10 ,  F01D5/187 ,  F05D2230/12 ,  F05D2240/12 ,  F05D2240/81 ,  Y02T50/676 ,  Y10T29/49323 ,  Y10T29/49341

Abstract: A method of machining cooling holes in a component includes the steps of inserting an electro discharge machining guide that houses an electrode into an internal cavity of a component, and machining a cooling hole into a wall of the component with the electrode. A gas turbine engine component includes first and second spaced apart walls providing an internal cavity. The first wall has outer and inner surfaces. The inner surface faces the internal cavity. A cooling hole extends through the first wall from the inner surface to the outer surface. The cooling hole includes entry and exit openings respectively provided in the inner and outer surfaces. The exit opening includes a cross-sectional area that is smaller than a cross-sectional area of the entry opening.

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

IPC: B23H9/14 ,  B23H7/26 ,  B23H9/10 ,  F01D5/18 ,  F01D9/06 ,  F23R3/06

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.