Fuel injection system for turbojet engine and method of assembling such an injection system
    11.
    发明授权
    Fuel injection system for turbojet engine and method of assembling such an injection system 有权
    涡轮喷气发动机燃油喷射系统及其组装方法

    公开(公告)号:US09188064B2

    公开(公告)日:2015-11-17

    申请号:US13812259

    申请日:2011-07-18

    摘要: A fuel injection system for a turbojet engine including a fixed part and a sliding lead-through, the fixed part and the sliding lead-through extending along a reference axis, the fixed part including a cavity that has a bottom and a closure cup, the sliding lead-through being provided with a sole plate contained inside the cavity. The injection system has increased resistance to wearing of the injector on which it is mounted. To achieve this it further includes a spring arranged in such a way as to apply to the sole plate a force capable of preventing the vibration-induced micro-movements of the sliding lead-through with respect to the fixed part in the absence of thermal expansion.

    摘要翻译: 一种用于涡轮喷气发动机的燃料喷射系统,包括固定部分和滑动引导件,所述固定部分和沿着参考轴线延伸的滑动引导件,所述固定部分包括具有底部和封闭杯的空腔, 滑动导通件设置有容纳在腔体内的底板。 注射系统具有增加的耐受其安装在其上的注射器的耐磨性。 为了实现这一点,还包括弹簧,其以这样一种方式布置,以便在没有热膨胀的情况下向底板施加能够防止滑动引导相对于固定部分的振动引起的微动作用的力 。

    Combustion chamber having a ventilated spark plug
    12.
    发明授权
    Combustion chamber having a ventilated spark plug 有权
    燃烧室具有通风火花塞

    公开(公告)号:US09080771B2

    公开(公告)日:2015-07-14

    申请号:US13509815

    申请日:2010-11-15

    IPC分类号: F02C7/266 F23R3/06 F23R3/60

    摘要: A combustion chamber of a gas turbine engine including a wall, a well secured to the wall, the well forming a recess for a spark plug leading into the combustion chamber, and a spark-plug guide mounted on the well to be transversally mobile relative to the axis of the well, the spark-plug guide including a cylindrical wall portion for guiding and supporting the spark plug and a seal ring mounted such as to engage slidably with a bearing surface of the well. In the combustion chamber the spark-plug guide includes a cooling chamber having openings for supplying cooling air to the chamber.

    摘要翻译: 一种燃气涡轮发动机的燃烧室,其包括壁,井壁固定,形成用于引导到燃烧室中的火花塞的凹部的井以及安装在井上的火花塞导向件相对于 井的轴线,火花塞引导件包括用于引导和支撑火花塞的圆柱形壁部分和安装成可滑动地与井的支承表面接合的密封环。 在燃烧室中,火花塞引导件包括具有用于将冷却空气供应到腔室的开口的冷却室。

    Turbojet engine comprising an afterburner duct cooled by a variable-throughput ventilation stream
    13.
    发明授权
    Turbojet engine comprising an afterburner duct cooled by a variable-throughput ventilation stream 有权
    涡轮喷气发动机包括由可变通量通气流冷却的后燃器管道

    公开(公告)号:US07870740B2

    公开(公告)日:2011-01-18

    申请号:US11741400

    申请日:2007-04-27

    IPC分类号: F02K3/10

    摘要: An afterbody for a turbojet engine is disclosed. The afterbody includes an afterburner casing, a thermal protection liner, and a diaphragm-forming assembly interposed between the liner and the casing. The diaphragm-forming assembly defines a flow area which is traversed by a ventilation stream. The diaphragm-forming assembly includes two annular plates overlapping one another, each being perforated with a plurality of apertures and being mounted on the liner and the casing respectively. The apertures jointly define the flow area of the assembly. Furthermore, the assembly is designed such that the expansion of the liner causes an angular displacement of the plate with respect to the plate, leading to an increase in the size of the flow area.

    摘要翻译: 公开了涡轮喷气发动机的后身。 后箱包括加力套管,热保护衬套和插入在衬套和套管之间的隔膜成形组件。 膜片形成组件限定了由通风流穿过的流动区域。 隔膜成形组件包括彼此重叠的两个环形板,每个环形板分别穿过多个孔并分别安装在衬套和壳体上。 这些孔共同限定了组件的流动面积。 此外,组件被设计成使得衬套的膨胀导致板相对于板的角位移,导致流动面积的大小增加。

    Device for attaching a flame-holder arm to an afterburner housing
    16.
    发明授权
    Device for attaching a flame-holder arm to an afterburner housing 有权
    用于将火焰支架臂连接到后燃室的装置

    公开(公告)号:US08769958B2

    公开(公告)日:2014-07-08

    申请号:US13059347

    申请日:2009-08-31

    IPC分类号: F02K3/10

    摘要: A flame-holder device for an afterburner of a turbofan, the turbofan including a first inner annular casing and a second inner annular casing, these defining a passage for a primary flow, and an outer annular casing defining with the first inner annular casing a passage for a secondary flow, including at least one arm-support made of metallic material configured to be fixed to the outer casing by an upper plate and at least one flame-holder arm of a one-piece structure of composite material including two mutually attached walls arranged to define a groove whose profile is approximately a V. The walls support, on their upper part situated in the secondary flow, a fixing mechanism for fixing to the arm-support. The upper parts are approximately planar and are positioned facing each other.

    摘要翻译: 一种用于涡轮风扇的后燃器的火焰保持装置,所述涡轮风扇包括第一内环形壳体和第二内环形壳体,所述第一内环形壳体和第二内环形壳体限定用于主流动的通道,以及限定有所述第一内环形壳体的通道 用于二次流动,包括由金属材料制成的至少一个臂支撑件,其构造成通过上板固定到外壳体,以及至少一个复合材料的单件结构的火焰支架臂,所述复合材料包括两个相互连接的壁 布置成限定轮廓大约为V的凹槽。壁在其位于二次流中的上部上支撑固定到臂支撑件的固定机构。 上部部件大致平面且彼此面对。

    Turbojet with protection means for a fuel injection device, an injection device and a protective plate for the turbojet
    17.
    发明授权
    Turbojet with protection means for a fuel injection device, an injection device and a protective plate for the turbojet 有权
    涡轮喷气发动机,具有用于燃料喷射装置的保护装置,喷射装置和涡轮喷气发动机的保护板

    公开(公告)号:US07600383B2

    公开(公告)日:2009-10-13

    申请号:US11175191

    申请日:2005-07-07

    IPC分类号: F02K3/10

    摘要: The turbojet of the invention includes a combustion chamber, a channel for heating the gas stream, where the heating channel includes at least one device for injection of fuel into the gas stream, which includes an open chamber, with a U-shaped section, having at least one wall within which extend fuel-injection means, which inject the fuel in at least one direction. It is characterised by the fact that a cooling jacket is provided in the chamber, alongside the wall forming the base of its U-section, and the fuel injection device includes protection means interposed between the fuel-injection means and the wall, in a fuel-injection direction.Thus, as a result of the invention, the fuel injection device, which is bathed in a very hot environment, is protected against thermal shocks due to the projection of colder fuel onto its walls, and its life expectancy is therefore increased.

    摘要翻译: 本发明的涡轮喷气发动机包括燃烧室,用于加热气流的通道,其中加热通道包括用于将燃料喷射到气流中的至少一个装置,其包括具有U形截面的开放室,其具有U形截面, 至少一个壁,其中延伸燃料喷射装置,其在至少一个方向上喷射燃料。 其特征在于,在所述腔室中设置有冷却套管,所述冷却套管与形成其U形部分的基部的壁相连,并且所述燃料喷射装置包括插入在所述燃料喷射装置和所述壁之间的燃料中的保护装置 注射方向。 因此,作为本发明的结果,在非常炎热的环境中沐浴的燃料喷射装置由于将更冷的燃料投射到其壁上而受到热冲击的保护,因此其预期寿命增加。

    DEVICE FOR MOUNTING A SPARK PLUG IN A COMBUSTION ENGINE OF A GAS TURBINE ENGINE
    20.
    发明申请
    DEVICE FOR MOUNTING A SPARK PLUG IN A COMBUSTION ENGINE OF A GAS TURBINE ENGINE 有权
    燃气涡轮发动机燃烧发动机中的火花塞安装装置

    公开(公告)号:US20140137568A1

    公开(公告)日:2014-05-22

    申请号:US14116807

    申请日:2012-05-03

    IPC分类号: F02C7/20

    摘要: A device for mounting a spark plug in a combustion chamber of a gas turbine engine includes a chimney including a collar extending radially inwards, a washer fastened on an axial end of the chimney so as to project towards the inside of the chimney, and a bushing forming a spark plug guide and including an inner collar and an outer collar that are axially spaced apart from each other by a cylindrical portion. Each collar extends radially outwards. The bushing is floatingly mounted inside the chimney with its collars axially positioned between the collar of the chimney and the washer. The inner collar comes in operation to bear against the collar of the chimney. The outer collar presents an outside diameter (d1) greater than the inside diameter (d2) of the washer.

    摘要翻译: 用于将火花塞安装在燃气涡轮发动机的燃烧室中的装置包括:烟囱,其包括径向向内延伸的轴环;固定在烟囱的轴向端部上以朝向烟囱内部突出的衬套的衬套;以及衬套 形成火花塞引导件并且包括通过圆柱形部分彼此轴向间隔开的内部轴环和外部轴环。 每个衣领都向外径向延伸。 衬套浮动安装在烟囱内,其轴环位于烟囱的轴环和垫圈之间。 内衣领用来对着烟囱的衣领。 外圈具有大于垫圈内径(d2)的外径(d1)。