公开(公告)号：EP2547889B1

公开(公告)日：2017-09-13

申请号：EP11761172.3

申请日：2011-03-09

申请人： Siemens Energy, Inc.

发明人： LEMIEUX, Dennis H. ,  SMED, Jan P. ,  WILLIAMS, James P. ,  JONNALAGADDA, Vinay

IPC分类号： F02C7/18 ,  F02C7/00 ,  F01D21/00

CPC分类号： F01D21/003 ,  F05D2260/80 ,  G01N21/15 ,  G01N21/85 ,  G01N21/954 ,  G01N2021/151 ,  G01N2201/08 ,  G02B23/2492

公开(公告)号：EP2547889A2

公开(公告)日：2013-01-23

申请号：EP11761172.3

申请日：2011-03-09

申请人： Siemens Energy, Inc.

发明人： LEMIEUX, Dennis H. ,  SMED, Jan P. ,  WILLIAMS, James P. ,  JONNALAGADDA, Vinay

IPC分类号： F02C7/18 ,  F02C7/00

CPC分类号： F01D21/003 ,  F05D2260/80 ,  G01N21/15 ,  G01N21/85 ,  G01N21/954 ,  G01N2021/151 ,  G01N2201/08 ,  G02B23/2492

摘要： The monitoring system (10) for a gas turbine engine including a viewing tube assembly (32) having an inner end (34) and an outer end (36). The inner end is located adjacent to a hot gas flow path within the gas turbine engine and the outer end is located adjacent to an outer casing of the gas turbine engine. An aperture wall (68) is located at the inner end of the viewing tube assembly and an optical element (42) is located within the viewing tube assembly adjacent to the inner end and is spaced from the aperture wall to define a cooling and purge chamber (72) therebetween. An aperture (96) is defined in the aperture wall for passage of light from the hot gas flow path to the optical element. Swirl passages (80) are defined in the viewing tube assembly between the aperture wall and the optical element for passage of cooling air from a location outside the viewing tube assembly into the chamber (72), wherein swirl passages effect a swirling movement of air in a circumferential direction within the chamber.

摘要翻译： 一种用于燃气涡轮发动机的监测系统，其包括具有内端和外端的观察管组件。 内端位于燃气涡轮发动机内的热气流路径附近，外端位于燃气涡轮发动机的外壳附近。 孔壁位于观察管组件的内端，并且光学元件位于观察管组件内邻近内端并且与孔壁间隔开以在其间限定冷却和净化室。 在孔壁中限定出一个孔，用于将光从热气流通道通过到光学元件。 涡流通道限定在孔壁和光学元件之间的观察管组件中，用于使冷却空气从观察管组件外部的位置进入腔室，其中旋转通道在腔室内沿圆周方向起作用的旋转运动 。