公开(公告)号：EP2900964A1

公开(公告)日：2015-08-05

申请号：EP13842446.0

申请日：2013-09-24

Applicant: United Technologies Corporation

Inventor： BALES, Daniel A. ,  KLUCHA, Agnes ,  DOLANSKY, Gregory M.

IPC: F02C7/12 ,  F01D5/18 ,  F02K3/00

CPC classification number: F01D5/187 ,  B22F3/1055 ,  B22F5/009 ,  B22F5/04 ,  B22F5/10 ,  B22F2998/10 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00 ,  B33Y70/00 ,  B33Y80/00 ,  F05D2230/22 ,  F05D2230/31 ,  F05D2230/42 ,  F05D2230/90 ,  F05D2300/606 ,  Y02P10/295 ,  B22F3/15 ,  B22F2003/248 ,  C23C28/00

Abstract: A gas turbine airfoil having internal cooling passages is formed by additive manufacturing. Layers of superalloy powder are fused by an energy beam using a two-dimensional pattern providing unmelted areas forming passageways therein. Layers of the powder are added and fused using sufficient two-dimensional patterns to form the entire airfoil with the desired pattern of internal cooling passages. After completion of the formation of the airfoil, it may be hot isostatic pressed, directionally recrystallized, bond coated, and covered with a thermal barrier layer.

Abstract translation: 具有内部冷却通道的燃气轮机翼型通过添加剂制造形成。 超级合金粉末的层由能量束熔合，使用二维图案，提供在其中形成通道的未熔化区域。 使用足够的二维图案添加和熔化粉末层，以形成具有所需图案的内部冷却通道的整个翼型。 在形成翼型之后，可以进行热等静压，定向重结晶，粘结涂层，并覆盖有热障层。

公开(公告)号：EP2841702A1

公开(公告)日：2015-03-04

申请号：EP13781752.4

申请日：2013-04-20

Applicant: United Technologies Corporation

Inventor： FISK, Benjamin T. ,  PROPHETER-HINCKLEY, Tracy A. ,  DOLANSKY, Gregory M. ,  TRACY, Anita L.

IPC: F01D5/12 ,  F01D5/18 ,  F01D9/00 ,  F02C7/12 ,  F02K3/00

CPC classification number: F01D5/147 ,  F05D2230/31

Abstract: An airfoil includes an airfoil body that defines a longitudinal axis. The airfoil body includes a leading edge and a trailing edge and a first side wall and a second side wall that is spaced apart from the first sidewall. The first side wall and the second side wall join the leading edge and the trailing edge and at least partially define a cavity in the airfoil body. At least one of the first side wall and the second side wall includes at least one longitudinally elongated buttress that tapers longitudinally. The at least one longitudinally elongated buttress defines an increased thickness of, respectively, the first side wall or the second sidewall. The at least one longitudinally elongated buttress projects partially across the cavity toward the other of the first side wall or the second sidewall.