公开(公告)号：US09822656B2

公开(公告)日：2017-11-21

申请号：US14728003

申请日：2015-06-02

申请人： ALSTOM Technology Ltd

发明人： Cyrille Bricaud ,  Carlos Simon-Delgado ,  Steffen Holzhaeuser ,  Marco Lamminger ,  Carl Berger

IPC分类号： F01D11/00 ,  F01D5/02 ,  F01D5/32 ,  F01D5/30

CPC分类号： F01D11/006 ,  F01D5/02 ,  F01D5/30 ,  F01D5/3007 ,  F01D5/3015 ,  F01D5/326 ,  F01D11/005 ,  F05D2200/263 ,  F05D2220/32 ,  F05D2240/55 ,  F05D2250/192 ,  F05D2250/38 ,  F05D2300/10 ,  F05D2300/43 ,  F05D2300/44

摘要： The present invention relates to a rotor assembly for a rotary machine such as a gas turbine. The present solution provides a sealing wire located inside a groove engraved in the rotor body. The sealing wire is responsive to radial centrifugal forces acting during normal operation of the machine, and moves radially in the groove until a sealing configuration is achieved such to prevent damaging hot leakage towards machine components.

公开(公告)号：US20150267542A1

公开(公告)日：2015-09-24

申请号：US14661220

申请日：2015-03-18

申请人： ALSTOM Technology Ltd.

发明人： Steffen Holzhaeuser ,  Carlos Simon-Delgado ,  Carl Berger

IPC分类号： F01D5/18 ,  F01D25/12 ,  F01D5/02

CPC分类号： F01D5/18 ,  F01D5/02 ,  F01D5/063 ,  F01D5/087 ,  F01D25/12 ,  F05D2220/31 ,  F05D2220/32 ,  F05D2230/10 ,  F05D2240/60 ,  F05D2260/232 ,  F05D2260/941

摘要： The invention relates to a rotor shaft adapted to rotate about a rotor axis thereof. The rotor shaft includes a rotor cavity configured concentrically or quasi-concentrically to the rotor axis inside the rotor shaft, and a plurality of cooling bores extending radially or quasi-radially outward from the inside to an outside of the rotor shaft. Each cooling bore having a bore inlet location and a distal bore outlet portion, the respective bore inlet location being adapted to abut on the rotor cavity. At least one side or part-side of the cooling bore inlet location is provided with an asymmetric edge fillet in order to maximize the wall thickness between two adjacent cooling bores.

摘要翻译： 本发明涉及适于围绕其转子轴线旋转的转子轴。 转子轴包括与转子轴内的转子轴同心或准同心配置的转子腔，以及从转子轴的内侧向外径向或半径向外延伸的多个冷却孔。 每个冷却孔具有孔入口位置和远端孔出口部分，相应的孔入口位置适于邻接转子腔。 冷却孔入口位置的至少一侧或部分侧设置有不对称边缘，以使两个相邻冷却孔之间的壁厚最大化。

公开(公告)号：US11105205B2

公开(公告)日：2021-08-31

申请号：US14341189

申请日：2014-07-25

申请人： ALSTOM Technology Ltd

发明人： Steffen Holzhaeuser ,  Daniel Eckhardt ,  Sergei Riazantsev ,  Torsten Winge

IPC分类号： F01D5/08 ,  F01D5/06

摘要： A rotor shaft adapted to rotate about a rotor axis thereof. The rotor shaft includes a rotor cavity configured concentrically to the rotor axis inside the rotor shaft. The rotor shaft further includes a plurality of cooling bores extending radially outward from the rotor cavity to feed cooling air into an internal cooling system in a blade. Each cooling bore includes a bore inlet portion and a distal bore outlet portion. The respective bore inlet portion ends in a plateau, projecting above the outer circumference contour of the rotor cavity. Thus, cooling bore inlets are shifted to a low stress area and the lifetime of the rotor is improved.