公开(公告)号：US06668559B2

公开(公告)日：2003-12-30

申请号：US10161782

申请日：2002-06-05

申请人： Gwénaëlle Calvez ,  Didier Hernandez ,  Alexandre Forestier

发明人： Gwénaëlle Calvez ,  Didier Hernandez ,  Alexandre Forestier

IPC分类号： F02C720

CPC分类号： F23R3/06 ,  F05B2230/606 ,  F23R3/007 ,  F23R3/60 ,  Y02T50/675

摘要： In a turbomachine comprising inner and outer annular shells of metal material containing, in a gas flow direction F: a fuel injection assembly; an annular combustion chamber of composite material having a plurality of air feed orifices in a primary zone and/or in a dilution zone; and an annular nozzle of metal material forming the inlet stage with fixed blades for a high pressure turbine, provision is made for the combustion chamber to be held in position between the inner and outer annular metal shells by means of a plurality of flexible metal tongues having first ends interconnected by respective metal rings fixed securely to said inner and outer annular shells by first fixing means, and second ends fixed securely to the composite material combustion chamber at it air feed orifices by second fixing means.

公开(公告)号：US06799427B2

公开(公告)日：2004-10-05

申请号：US10379917

申请日：2003-03-06

申请人： Gwénaëlle Calvez ,  Didier Feder ,  Marion Michau ,  Frédéric Ravet ,  José Rodrigues ,  Alain Schuler ,  Alain Tiepel ,  Christophe Viguier

发明人： Gwénaëlle Calvez ,  Didier Feder ,  Marion Michau ,  Frédéric Ravet ,  José Rodrigues ,  Alain Schuler ,  Alain Tiepel ,  Christophe Viguier

IPC分类号： F02C722

CPC分类号： F23R3/14 ,  F23R3/28 ,  F23R3/343

摘要： The invention provides an injection system for injecting an air/fuel mixture into a combustion chamber of a gas turbine engine, the injection system having a longitudinal axis and comprising fuel injection means, interposed between first and second air injection means, the fuel injection means being disposed in an annular internal cavity of a Venturi, the fuel injection means comprising at least a first fuel admission circuit provided with at least one fuel injection orifice, and a plurality of second fuel admission circuits independent from the first fuel admission circuit(s), each being provided with at least one fuel injection orifice so as to define a plurality of independent modes of injecting the air/fuel mixture depending on determined operating speeds of the engine, the fuel injection orifice of the first fuel admission circuit being formed in the upstream wall of the Venturi so as to inject fuel towards the combustion chamber in a general direction that is substantially perpendicular to a flow of air coming from the first air injection means, and the fuel injection orifices of the second fuel admission circuits being formed in the downstream wall of the Venturi so as to inject fuel towards the combustion chamber in a general direction that is substantially perpendicular to a flow of air coming from the second air injection means.

摘要翻译： 本发明提供了一种用于将空气/燃料混合物喷射到燃气涡轮发动机的燃烧室中的喷射系统，所述喷射系统具有纵向轴线并且包括介于第一和第二空气喷射装置之间的燃料喷射装置，燃料喷射装置 设置在文氏管的环形内腔中，燃料喷射装置至少包括设有至少一个燃料喷射孔的第一燃料允许电路和独立于第一燃料允许电路的多个第二燃料允许电路， 每个设置有至少一个燃料喷射孔，以便根据确定的发动机的运行速度来限定喷射空气/燃料混合物的多个独立模式，第一燃料允许电路的燃料喷射孔形成在上游 文丘里管壁，以便在基本上延伸的大致方向上向燃烧室喷射燃料 相当于来自第一空气喷射装置的空气流，并且第二燃料允许回路的燃料喷射孔形成在文丘里管的下游壁中，以便在大致方向上向燃烧室喷射燃料 垂直于来自第二空气喷射装置的空气流。

公开(公告)号：US06708495B2

公开(公告)日：2004-03-23

申请号：US10162385

申请日：2002-06-05

申请人： Gwénaëlle Calvez ,  Eric Conete ,  Alexandre Forestier ,  Didier Hernandez

发明人： Gwénaëlle Calvez ,  Eric Conete ,  Alexandre Forestier ,  Didier Hernandez

IPC分类号： F02C720

CPC分类号： F23R3/60 ,  F05B2230/606 ,  F23R3/007

摘要： A turbomachine has inner and outer annular shells of metal material containing, in a gas flow direction F, a fuel injector assembly, an annular combustion chamber of composite material, and an annular nozzle of metal material forming the fixed-blade inlet stage of a high pressure turbine. Provision is made for the combustion chamber to be held in position between the inner and outer metal annular shells by a plurality of flexible metal tabs having first ends interconnected by a metal ring fixed securely to each of the annular shells by first fixing means, and second ends fixed by second fixing means on a ring of composite material fixed securely to said composite material combustion chamber, the flexibility of said metal fixing tongues allowing expansion to take place freely in a radial direction at high temperatures between said composite material combustion chamber and said metal annular shells.

摘要翻译： 涡轮机具有金属材料的内外环形壳体，其在气体流动方向F上包含燃料喷射器组件，复合材料的环形燃烧室和金属材料的环形喷嘴，其形成高度的固定刀片入口级 压力涡轮机。 通过多个柔性金属片将燃烧室保持在内外金属环形外壳之间的位置，其多个柔性金属片具有通过第一固定装置将金属环互相牢固固定在每个环形壳上的第一端， 端部通过第二固定装置固定在牢固地固定到所述复合材料燃烧室的复合材料环上，所述金属固定舌的柔性允许膨胀在所述复合材料燃烧室和所述金属之间的高温下在径向方向上自由发生 环形壳。

公开(公告)号：US06655148B2

公开(公告)日：2003-12-02

申请号：US10160729

申请日：2002-06-05

申请人： Gwénaëlle Calvez ,  Didier Hernandez

发明人： Gwénaëlle Calvez ,  Didier Hernandez

IPC分类号： F02C720

CPC分类号： F23R3/007 ,  F23D2211/00 ,  F23R3/60

摘要： An annular combustion chamber has outer and inner axially-extending side walls of composite material and an end wall of metal material held in position on the outer and inner side walls by fixing means. Provision is made for the fixing means to pass through annular cavities that are designed to receive cylindrical end portions of the outer and inner side walls, and that are created between peripheral edges of the end wall and facing portions folded downstream, a determined amount of clearance J being provided between the peripheral edges and the facing faces of the outer and inner side walls in such a manner as to allow expansion to take place freely, in operation, in a radial direction between said end wall and said side walls.

公开(公告)号：US06675585B2

公开(公告)日：2004-01-13

申请号：US10161662

申请日：2002-06-05

申请人： Gwénaëlle Calvez ,  Eric Conete ,  Alexandre Forestier ,  Didier Hernandez

发明人： Gwénaëlle Calvez ,  Eric Conete ,  Alexandre Forestier ,  Didier Hernandez

IPC分类号： F02C720

CPC分类号： F23R3/60 ,  F05B2230/606 ,  F23R3/007

摘要： A turbomachine has inner and outer annular shells of metal material containing, in a gas flow direction F, a fuel injector assembly, a composite material annular combustion chamber, and an nozzle of metal material forming the fixed-blade inlet stage of a high pressure turbine. Provision is made for the combustion chamber to be held in position between the inner and outer metal annular shells by a plurality of flexible metal tabs having first ends interconnected by a flange-forming metal ring fixed securely to each of the annular shells by first fixing means, and second ends fixed by second fixing means firstly to the composite material combustion chamber and secondly to one end of a composite material wall whose other end forms a bearing plane for a sealing element secured to the nozzle and providing sealing for the gas stream between the combustion chamber and the nozzle.

摘要翻译： 涡轮机具有金属材料的内外环形壳体，其在气体流动方向F上包含燃料喷射器组件，复合材料环形燃烧室和形成高压涡轮机的固定刀片入口级的金属材料喷嘴 。 通过多个柔性金属片将燃烧室保持在内外金属环形壳体之间的位置，其多个柔性金属片，其第一端由法兰形成金属环互相连接，该金属环通过第一固定装置 第二固定装置的第二端首先固定到复合材料燃烧室，其次是复合材料壁的一端，复合材料壁的另一端形成用于固定到喷嘴上的密封元件的支承平面，并为气流提供密封 燃烧室和喷嘴。

公开(公告)号：US06647729B2

公开(公告)日：2003-11-18

申请号：US10161653

申请日：2002-06-05

申请人： Gwénaëlle Calvez ,  Alexandre Forestier ,  Didier Hernandez

发明人： Gwénaëlle Calvez ,  Alexandre Forestier ,  Didier Hernandez

IPC分类号： F23R360

CPC分类号： F23R3/60 ,  F23D2211/00 ,  F23R3/007

摘要： In an annular combustion chamber having inner and outer axially-extending side walls of composite material and an end wall of metal material, provision is made to hold the end wall in position between the side walls of the annular combustion chamber by means of a plurality of flexible metal tongues fixed firstly to said side walls by fixing means and secondly to said end wall by brazing or welding, said end wall further comprising means for providing sealing between said end wall and said side walls.