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FLAT OUTPUT DEVICE OF THREE-LOOP GAS TURBINE ENGINE OF VARIABLE CYCLE

机译：可变循环三环燃气轮机的平板输出装置

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FIELD: aviation.;SUBSTANCE: invention relates to aircraft engineering, particularly to design of flat multifunctional output devices for variable cycle three-loop gas turbine engine. Flat output device of three-loop gas turbine engine of variable cycle comprises housing of main nozzle channel, consisting of subsonic part, tapering in cross section of housing cavity, interconnected by inlet section with channels of first and second circuits of engine and having rectangular shape in output section, and supersonic part with increasing along gas flow area of rectangular cross-section of housing cavity, docked with subsonic part in its outlet section, and two rings fixed on the main nozzle channel housing to form upper and lower additional nozzle channels interconnected with the engine third circuit channel. Supersonic part of main nozzle channel body has two vertical and lower transverse walls rigidly connected to subsonic part, and upper rotary wall with drive mechanism, hingedly fixed on upper edge of outlet section of subsonic part of housing, and shells of upper and lower additional nozzle channels have movably installed locking elements with drive for adjustment of flow area of these channels. Upper rotary wall of supersonic part of housing is equipped with chevrons located on its output edge, locking element of the upper additional nozzle channel is made in the form of a rotary flap with a drive hinged on the shell of the upper additional nozzle channel with possibility of constant interaction with the upper rotary wall. Locking element of lower additional nozzle channel is made in form of shaped body installed on inner surface of shell of lower additional nozzle channel with possibility of back-and-forth movement in axial direction and having convex shaped locking surface arranged to interact with free edge of transverse wall of supersonic part of main nozzle channel housing.;EFFECT: invention allows combining reduction of noise level of main jet of flat output device at takeoff low-noise mode and low values of losses of thrust of output device at supersonic cruising mode.;1 cl, 7 dwg
机译：技术领域本发明涉及飞机工程，尤其涉及用于可变循环三回路燃气涡轮发动机的扁平多功能输出装置的设计。可变周期的三环燃气涡轮发动机的扁平输出装置包括主喷嘴通道的壳体，该壳体由亚音速部分组成，在壳体腔的横截面中逐渐变细，通过入口部分与发动机的第一和第二回路的通道互连，并且具有矩形形状在输出部分中，超声速部分沿壳体腔的矩形横截面的气体流通面积增大，并在其出口部分与亚声速部分对接，两个环固定在主喷嘴通道壳体上，以形成相互连接的上下附加喷嘴通道与引擎的第三回路通道。主喷嘴通道体的超音速部分有两个垂直和下横壁，刚性连接到亚音速部分，上旋转壁带有驱动机构，铰接固定在壳体的亚音速部分出口部分的上边缘，以及上下附加喷嘴的壳体通道具有可移动安装的锁定元件，该锁定元件带有用于调节这些通道的流通面积的驱动器。壳体的超音速部分的上部旋转壁在其输出边缘装有人字形，上部附加喷嘴通道的锁定元件采用旋转活门的形式制成，驱动器铰接在上部附加喷嘴通道的外壳上与上部旋转壁的持续相互作用。下附加喷嘴通道的锁定元件以成形体的形式制成，该成形体安装在下附加喷嘴通道的壳体的内表面上，并且可以在轴向方向上来回运动，并且具有凸形的锁定表面，该凸形锁定表面布置成与容器的自由边缘相互作用。效果：本发明允许降低在起飞低噪声模式下扁平输出装置的主射流的噪声水平与在超音速巡航模式下输出装置的推力损失的较低值的组合。 1厘升，7载重吨

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