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    • 73. 发明申请
    • SECONDARY FLOWPATH SYSTEM FOR A GAS TURBINE ENGINE
    • 用于气体涡轮发动机的二次流量系统
    • US20160076381A1
    • 2016-03-17
    • US14853392
    • 2015-09-14
    • United Technologies Corporation
    • Gabriel L. SuciuBrian D. MerryJames D. HillWilliam K. Ackermann
    • F01D5/18
    • F01D5/18F01D5/066F01D5/084F01D5/085F04D29/321F04D29/584F05D2260/205F05D2260/221Y02T50/671Y02T50/676
    • A rotor assembly of a gas turbine engine may be spoked and includes a rotor and a shell. The rotor has a rotor disk and a plurality of blades each having a platform attached to the rotor disk and with a first channel defined radially between the platforms and the rotor disk. The shell projects aft of the rotor and includes inner and outer walls with a passage defined therebetween. The passage is in fluid communication with the first channel and, together, form part of a secondary flowpath for cooling of adjacent components. The rotor assembly may further include a structure located radially inward of the rotor disk and shell. The structure defines a supply conduit for flowing air from the passage and into a rotor bore defined at least in part by adjacent rotor disks. The entering air, being pre-heated when flowing through the channel and passage, warms the bore and reduces thermal gradients, thus thermal fatigue, across the rotor disk.
    • 燃气涡轮发动机的转子组件可以被喷射并且包括转子和壳体。 转子具有转子盘和多个叶片,每个叶片具有附接到转子盘的平台,并且在平台和转子盘之间径向地限定第一通道。 壳体在转子的后方突出并且包括具有在其间限定的通道的内壁和外壁。 通道与第一通道流体连通,并且一起形成用于冷却相邻部件的次级流路的一部分。 转子组件还可以包括位于转子盘和壳的径向内侧的结构。 该结构限定用于使空气从通道流入并至少部分地由相邻转子盘限定的转子孔的供应管道。 进入的空气在流过通道和通道时被预热,加热了孔,并降低了转子盘上的热梯度,从而导致热疲劳。