公开(公告)号：US06595000B2

公开(公告)日：2003-07-22

申请号：US09988526

申请日：2001-11-20

申请人： Alain Lavie ,  Stéphanie Martelli ,  Marion Michau ,  José Rodrigues ,  Alain Tiepel

发明人： Alain Lavie ,  Stéphanie Martelli ,  Marion Michau ,  José Rodrigues ,  Alain Tiepel

IPC分类号： F02C100

CPC分类号： F23R3/283 ,  F23D11/36 ,  F23D2214/00 ,  Y10T29/49425 ,  Y10T29/49826

摘要： An assembly method in which a brazing metal is initially filled into radial wells pierced in an annular injection piece having first injection orifices for discharging a primary fuel, and in a cylindrical endpiece surrounding the annular injection piece and having secondary injection orifices for discharging a secondary fuel; thereafter the annular injection piece is fitted inside the cylindrical endpiece and these pieces are together fitted on a first tube for feeding primary fuel and a second tube for feeding secondary fuel and surrounding the first tube, and also to an outer wall of the injector; finally, the end portion of the injector as assembled in this way is placed in an enclosure where it is heated so as to melt the brazing metal to unite the parts.

公开(公告)号：US06775984B2

公开(公告)日：2004-08-17

申请号：US09988522

申请日：2001-11-20

申请人： Alain Lavie ,  Stéphanie Martelli ,  Marion Michau ,  José Rodrigues ,  Alain Tiepel

发明人： Alain Lavie ,  Stéphanie Martelli ,  Marion Michau ,  José Rodrigues ,  Alain Tiepel

IPC分类号： F23R328

CPC分类号： F23R3/283 ,  F23D11/36 ,  F23D2214/00

摘要： An injector of a two-headed combustion chamber of a turbomachine has a first feed tube which is connected to an annular injection piece for discharging primary fuel into the combustion chamber. It also has a second feed tube surrounding the first feed tube and connected to a cylindrical endpiece for discharging secondary fuel into said combustion chamber. This endpiece has an annular channel of diameter that is greater than the diameter of the second feed tube and that extends over its entire length. A third tube is provided that surrounds the second tube and that is connected to a tubular separation element which is inserted in the annular channel of the cylindrical endpiece so as to form two annular spaces in which a cooling fluid can flow over 360° all the way to the end of the injector.

摘要翻译： 涡轮机的两头燃烧室的喷射器具有第一进料管，其连接到用于将一次燃料排放到燃烧室中的环形喷射件。 它还具有围绕第一进料管的第二进料管并且连接到用于将二次燃料排放到所述燃烧室中的圆柱形端部件。 该端件具有直径大于第二进料管的直径并且在其整个长度上延伸的环形通道。 提供第三管，其围绕第二管并且连接到管状分离元件，管状分离元件插入圆柱形端件的环形通道中，以便形成两个环形空间，冷却流体可以一直流过360度 到注射器的末端。

公开(公告)号：US06644031B2

公开(公告)日：2003-11-11

申请号：US09988525

申请日：2001-11-20

申请人： Alain Lavie ,  Stéphanie Martelli ,  Marion Michau ,  José Rodrigues ,  Alain Tiepel

发明人： Alain Lavie ,  Stéphanie Martelli ,  Marion Michau ,  José Rodrigues ,  Alain Tiepel

IPC分类号： F02C100

CPC分类号： F02C9/263 ,  F02C7/232

摘要： A fuel injector has a metering valve arranged to open under a predetermined feed pressure which constitutes a first threshold pressure, and to remain open in response to said feed pressure increasing so as to deliver fuel to fuel utilization means. The flow rate of fuel passing through the injector is metered to feed said utilization means so long as the feed pressure remains below a second threshold pressure greater than the first threshold pressure. Above the second threshold pressure, the metering valve behaves like a fixed diaphragm as a function of the fluid flow sections formed therethrough. Individual adjustment means are provided so as to enable said second threshold pressure to be adjusted for each injector to ensure that fuel is injected at a uniform flow rate by all of the injectors in a combustion chamber.