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1. 发明授权

US06799427B2 Multimode system for injecting an air/fuel mixture into a combustion chamber 有权
标题翻译：用于将空气/燃料混合物注入燃烧室的多模系统
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。

2. 发明授权

US06959551B2 Aeromechanical injection system with a primary anti-return swirler 有权
标题翻译：具有主要反作用旋流器的机械射流系统
公开(公告)号：US06959551B2
公开(公告)日：2005-11-01
申请号：US10194230
申请日：2002-07-15
申请人： Christophe Baudoin , Patrice-André Commaret , Christophe Viguier
发明人： Christophe Baudoin , Patrice-André Commaret , Christophe Viguier
IPC分类号： F23R3/14 , F23R3/28 , F02C3/00 , F23R3/30
CPC分类号： F23R3/14 , F23R3/286
摘要： An injection system for a turbomachine combustion chamber, the system comprising a fuel injection nozzle for vaporizing fuel in the combustion chamber and a mixer/deflector assembly coaxial with the injection nozzle and serving to mix fuel and oxidizer and to diffuse the mixture in the combustion chamber, said mixer/deflector assembly comprising a primary swirler and a secondary swirler disposed at a determined distance apart from each other in the axial direction and separated by a Venturi device disposed coaxially with the injection nozzle, the primary swirler being fixed securely to the injection nozzle and being spaced apart therefrom by a constant radial distance which is determined in such a manner that the fuel vaporized by the injection nozzle can under no circumstances impact on the primary swirler. The Venturi device preferably has an inside surface that presents an upstream portion with a slope discontinuity P.
摘要翻译：一种用于涡轮机燃烧室的注射系统，该系统包括用于使燃烧室中的燃料蒸发的燃料喷射喷嘴和与注射喷嘴同轴的混合器/偏转器组件，用于混合燃料和氧化剂并将混合物扩散到燃烧室所述混合器/偏转器组件包括初级旋流器和次级旋流器，所述初级旋流器和次级旋流器沿轴向彼此隔开确定的距离并且被与喷射喷嘴同轴设置的文氏管装置隔开，初级旋流器牢固地固定到喷嘴并且通过恒定的径向距离与其间隔开，该距离以这样的方式确定，使得由注射喷嘴蒸发的燃料在任何情况下都不会影响初级旋流器。文氏管装置优选具有内表面，其呈现具有斜率不连续性P的上游部分。

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