公开(公告)号：US20140017071A1

公开(公告)日：2014-01-16

申请号：US13937635

申请日：2013-07-09

Applicant: ALSTOM Technology Ltd

Inventor： Benjamin MEGERLE ,  Ivan William MCBEAN ,  Timothy Stephen RICE ,  Said HAVAKECHIAN

IPC: F01D9/04

CPC classification number: F01D9/041 ,  F01D5/142 ,  F05D2220/31 ,  F05D2220/3215 ,  F05D2240/122 ,  F05D2260/961

Abstract: An axial flow turbine is described having a casing defining a flow path for a working fluid therein, a rotor co-axial to the casing, a plurality of stages, each including a stationary row of vanes circumferentially mounted on the casing a rotating row blades, circumferentially mounted on the rotor, with within a stage n vanes have an extension such that at least a part of the trailing edge of each of the n vanes reaches into the annular space defined by the trailing edges of the remaining N-n vanes and the leading edges of rotating blades of the same stage.

Abstract translation: 描述了一种轴流涡轮机，其具有限定其中的工作流体的流动路径的壳体，与壳体同轴的转子，多个级，每个级包括周向地安装在壳体上的旋转行叶片的静止叶片， 周向地安装在转子上，在一个阶段中，n个叶片具有延伸部，使得每个n个叶片的后缘的至少一部分到达由剩余的Nn叶片的后缘限定的环形空间中，并且前缘 的相同阶段的旋转叶片。

公开(公告)号：US20150267538A1

公开(公告)日：2015-09-24

申请号：US14662531

申请日：2015-03-19

Applicant: ALSTOM Technology Ltd

Inventor： Timothy Stephen RICE

IPC: F01D5/10 ,  F01D5/06 ,  F01D5/30

CPC classification number: F01D5/10 ,  F01D5/06 ,  F01D5/30 ,  F01D25/04 ,  F05D2220/31 ,  F05D2240/24 ,  F05D2260/963

Abstract: A steam turbine with a resonance chamber in the outer annulus opposite a rotating blade row. The resonance chamber provides passive resonance to place the excitation at a frequency away from the natural frequency of the blades.

Abstract translation: 一个蒸汽涡轮机，在外环形空间中具有与旋转叶片排相对的共振室。 谐振室提供无源谐振，以将激励置于远离叶片的固有频率的频率处。