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首页> 外国专利> GAS TURBINE ENGINE LOW-PRESSURE TURBINE (LPT) (VERSIONS), ROTOR SHAFT CONNECTION UNIT WITH LPT DISC, LPT ROTOR AIR COOLING PATH AND AIR FEEDING APPARATUS FOR COOLING LPT ROTOR BLADES

GAS TURBINE ENGINE LOW-PRESSURE TURBINE (LPT) (VERSIONS), ROTOR SHAFT CONNECTION UNIT WITH LPT DISC, LPT ROTOR AIR COOLING PATH AND AIR FEEDING APPARATUS FOR COOLING LPT ROTOR BLADES

机译：燃气涡轮发动机低压涡轮（LPT）（版本），带有LPT盘的转子轴连接单元，LPT转子空气冷却路径和用于冷却LPT转子叶片的送气装置

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FIELD: motors and pumps.;SUBSTANCE: group of inventions relates to the field of aircraft engine building. Rotor of engine LPT comprises LPA shaft with journal and LPT impeller including disk and blade rim with system of working blades. Impeller disc is equipped with air supply unit for cooling of blades containing pressure ring with air intake impeller. On the rear side, the disc hub is made integral with the cantilever ring element made with a polyfunctional air-transparent flange. Said flange is provided with holes for fasteners for detachable connection with journal arranged one way with channels of LPT rotor air cooling circuit. On the front side, the disc hub is provided with a flange for detachable connection to the annular rotor element enveloping the disc hub and creating a prolonged channel of the LPT rotor cooling path together with the hub. LPT rotor impeller blade includes shank and feather with convex-concave profile. Cavity of the blade is made on the full length of the blade body and is open to the flow of air flow. Cavity of the feather in the middle most heat-stressed part is equipped with a regular set of rods endowed with the function of a high-conductivity web between the walls of the blade body.;EFFECT: technical result consists in improvement of efficiency of cooling of heat-stressed LPT elements, reliability and resource of LPT and engine in general.;8 cl, 7 dwg
机译：技术领域：一组发明涉及飞机发动机制造领域。发动机LPT的转子包括带有轴颈的LPA轴和LPT叶轮，LPT叶轮包括带有工作叶片系统的圆盘和叶片轮缘。叶轮盘配有供气单元，用于冷却带有进气叶轮的压力环叶片。在后侧，圆盘毂与悬臂环形元件制成一体，该悬臂环形元件由多功能的空气透明法兰制成。所述法兰上设有用于紧固件的孔，该紧固件用于与轴颈可拆卸地连接，轴颈以一种方式布置在LPT转子空气冷却回路的通道中。在前侧，盘毂上有一个法兰，用于可拆卸地连接到包围盘毂的环形转子元件，并与毂一起形成LPT转子冷却路径的延长通道。 LPT转子叶轮叶片包括具有凹凸形状的柄和羽毛。叶片的空腔形成在叶片主体的整个长度上，并且对气流开放。最热的中间部位的羽毛腔配备有规则的一组棒，这些棒具有在叶片主体壁之间具有高导电性网片的功能。效果：技术成果在于提高冷却效率LPT元件的热应力，LPT和发动机的可靠性和资源一般。; 8 cl，7 dwg

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