公开(公告)号：US5592821A

公开(公告)日：1997-01-14

申请号：US523908

申请日：1995-09-06

申请人： Jean-Paul D. Alary ,  Gerard Y. G. Barbier ,  Corine G. Delahaye ,  Jacques G. W. R. Havard ,  Paul Mackovic ,  Bruno R. H. Masse ,  Didier Merville ,  Francois J.-P. Mirville ,  Serge R. Y. Muccioli ,  Denis J. M. Sandelis ,  Ralph M. Stelter

发明人： Jean-Paul D. Alary ,  Gerard Y. G. Barbier ,  Corine G. Delahaye ,  Jacques G. W. R. Havard ,  Paul Mackovic ,  Bruno R. H. Masse ,  Didier Merville ,  Francois J.-P. Mirville ,  Serge R. Y. Muccioli ,  Denis J. M. Sandelis ,  Ralph M. Stelter

IPC分类号： F04D29/54 ,  F23R3/04 ,  F02C1/00

CPC分类号： F23R3/04 ,  F04D29/544 ,  Y02T50/675

摘要： A separator-diffuser for a gas turbine engine is disclosed wherein the diffuser includes axial walls which function as a guide vane stage for the oxidizer compressor. By incorporating the last, or downstream, guide vane stage into the diffuser structure, the overall axial length and bulk of the gas turbine engine may be significantly reduced. The separator-diffuser has a wall defining a generally annular oxidizer flow passage extending around the central axis of the gas turbine engine, the passage having an oxidizer inlet located downstream of the last rotor stage of the oxidizer compressor so as to enable the oxidizer to pass from the oxidizer compressor into the oxidizer flow passage. A generally annular separator member is located in the oxidizer flow passage downstream of the oxidizer inlet so as to divide the oxidizer flow passage into at least two separate oxidizer flow paths, each flow path having a separate oxidizer outlet. The oxidizer outlets are positioned so as to direct the oxidizer towards one of the annular array of fuel injection heads. A plurality of circumferentially spaced apart, axially extending primary arms connect the separator member to the diffuser walls so as to support the separator within the oxidizer passageway and to serve as a guide vane stage for the oxidizer emanating from the oxidizer compressor.

摘要翻译： 公开了一种用于燃气涡轮发动机的分离器扩散器，其中扩散器包括用作氧化剂压缩机的导叶台的轴向壁。 通过将最后的或下游的引导叶片级结合到扩散器结构中，燃料涡轮发动机的整体轴向长度和体积可以显着减小。 分离器 - 扩散器具有限定围绕燃气涡轮发动机的中心轴线延伸的大致环形的氧化剂流动通道的壁，该通道具有位于氧化剂压缩机的最后转子级的下游的氧化剂入口，以使氧化剂能够通过 从氧化剂压缩机进入氧化剂流通道。 大体上环形的分离器构件位于氧化剂入口下游的氧化剂流动通道中，以便将氧化剂流动通道分成至少两个单独的氧化剂流动路径，每个流动路径都具有单独的氧化剂出口。 氧化剂出口定位成将氧化剂引向燃料喷射头的环形阵列之一。 多个周向间隔开的轴向延伸的主臂将分离器构件连接到扩散器壁，以便将分离器支撑在氧化剂通道内并用作用于从氧化剂压缩机发出的氧化剂的导叶台。