公开(公告)号：US06582585B2

公开(公告)日：2003-06-24

申请号：US09938495

申请日：2001-08-27

申请人： Michel Ruimi ,  Sylvie Poutonnet ,  Philippe Poubanne

发明人： Michel Ruimi ,  Sylvie Poutonnet ,  Philippe Poubanne

IPC分类号： C25F300

CPC分类号： C23F1/26 ,  C25F3/00 ,  G01N1/32 ,  G01N33/20

摘要： The method according to the invention comprises a macrographic etching step followed by a “bleaching” step by electrolytic etching by means of a bath containing at least phosphoric acid and a weak acid. This method allows components made of superalloys to be easily and effectively inspected, including when they contain elements such as rhenium or ruthenium.

公开(公告)号：US5339622A

公开(公告)日：1994-08-23

申请号：US107175

申请日：1993-08-17

申请人： Xavier M. H. Bardey ,  Michel A. A. Desaulty ,  Jerome E. R. Jolu ,  Serge M. Meunier ,  Pierre C. Mouton ,  Sylvie Poutonnet ,  Jacques Renvier

发明人： Xavier M. H. Bardey ,  Michel A. A. Desaulty ,  Jerome E. R. Jolu ,  Serge M. Meunier ,  Pierre C. Mouton ,  Sylvie Poutonnet ,  Jacques Renvier

IPC分类号： F01D25/32 ,  F04D29/70 ,  F23R3/04 ,  F02G3/00

CPC分类号： F01D25/32 ,  F04D29/701 ,  F23R3/04 ,  Y02T50/671 ,  Y02T50/675

摘要： A gas turbine engine is disclosed having an air compressor and a generally annular combustion chamber, with a generally annular diffuser located between the compressor and the combustion chamber so as to direct air exiting from the compressor toward the combustion chamber. The diffuser has inner and outer walls and defines an exit which is located adjacent to an opening in an upstream wall portion of the combustion forming a dome cowl. The dome cowl divides the air emanating from the diffuser exit into a primary air stream passing through the opening and one or more secondary air streams which pass between the walls defining the combustion chamber and the walls of a casing enclosing the combustion chamber assembly. A guide is associated with the diffuser for directing water in the air passing through the diffuser away from the opening such that it will not pass directly into the combustion chamber. Guide vanes may be located on an external surface of the dome cowl so as to direct the water in the secondary air-flow such that it does not enter openings defined by the outer combustion chamber wall, thereby preventing the water from entering the combustion chamber.

摘要翻译： 公开了一种燃气涡轮发动机，其具有空气压缩机和大体上环形的燃烧室，其具有位于压缩机和燃烧室之间的大致环形的扩散器，以便将从压缩机排出的空气引向燃烧室。 扩散器具有内壁和外壁，并且限定出口，其邻近于形成圆顶罩的燃烧的上游壁部分中的开口定位。 圆顶罩将从扩散器出口排出的空气分隔成通过开口的一次空气流和在限定燃烧室的壁和封闭燃烧室组件的壳体的壁之间通过的一个或多个二次空气流。 引导件与扩散器相关联，用于将通过扩散器的空气中的水引导离开开口，使得其不会直接通过燃烧室。 引导叶片可以位于圆顶罩的外表面上，以便引导二次空气流中的水，使得其不会进入由外部燃烧室壁限定的开口，从而防止水进入燃烧室。