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    • 3. 发明授权
    • Gas-turbine engine with a bearing chamber
    • 带有轴承室的燃气涡轮发动机
    • US06516618B1
    • 2003-02-11
    • US09715039
    • 2000-11-20
    • Alexander Bock
    • Alexander Bock
    • F02C712
    • F02C7/06F01D25/16F01D25/18
    • This invention relates to a gas-turbine engine which is provided in the turbine interior with a bearing chamber for a turbine shaft, the bearing chamber being sealed by sealing elements, and with a scavenge line for the lubricating oil which is supplied to the bearing chamber, in particular is sprayed onto the bearing(s) arranged therein. In accordance with the present invention, the single scavenge line, which is connected to a suitable lubricating-oil collecting compartment, features such an ample cross-section and the sealing elements have such a high sealing effect that the pressure in the bearing chamber is essentially equal to the pressure in the lubricating-oil-collecting compartment and maximally half the pressure in the turbine interior.
    • 本发明涉及一种在涡轮机内部设置有用于涡轮轴的轴承室的燃气涡轮发动机,轴承室由密封元件密封,并具有用于供给到轴承室的润滑油的清除线 ,特别是喷洒到布置在其中的轴承上。 根据本发明,连接到合适的润滑油收集室的单个清除线具有这样大的横截面,并且密封元件具有如此高的密封效果,使得轴承室中的压力基本上是 等于润滑油收集舱中的压力,并且在涡轮机内部的压力最大为一半。
    • 7. 发明授权
    • Passive clearance control system for a gas turbine
    • 燃气轮机的被动间隙控制系统
    • US6126390A
    • 2000-10-03
    • US197668
    • 1998-11-23
    • Alexander Bock
    • Alexander Bock
    • F01D11/18F01D11/24F01D5/14F03B11/00
    • F01D11/24F01D11/18
    • A passive clearance control system is provided in the turbine section of a gas turbine engine in which turbine casing nozzle vanes and rotor blades are provided. The rotor blades are arranged on a rotor and preferably fitted with a shroud. The tips of the blades or shroud are surrounded by shroud segments suspended in the turbine casing, and a clearance between the tips and the shroud segments is formed and has a width which is controlled by a heating-cooling channel system. The channel system is supplied with a stream of air from the compressor section of the gas turbine and bypasses the combustion chamber to reach, via a plurality of metering holes, an annulus bounded by a stator ring. In a preferred aspect of the present invention, a ring-shaped orifice plate interacting with the metering holes is provided within the annulus which closes these metering holes to a varying degree depending on the temperature of the air stream reaching the heating-cooling channel system. A fraction of the hot gas flowing across the nozzle vanes and rotor blades is allowed to reach the annulus via a clearance between the stator ring and the stator shroud segments at least at a low turbine load.
    • 在燃气涡轮发动机的涡轮部分设置有被动间隙控制系统,在该涡轮机部分设有涡轮机壳体喷嘴叶片和转子叶片。 转子叶片布置在转子上并且优选地配有护罩。 叶片或护罩的尖端由悬挂在涡轮机壳体中的护罩段包围,并且形成尖端和护罩段之间的间隙,并且具有由加热 - 冷却通道系统控制的宽度。 通道系统从燃气轮机的压缩机部分供给空气流,并绕过燃烧室,经由多个计量孔到达由定子环限定的环形空间。 在本发明的优选方面,环形孔板与计量孔相互作用设置在环形空间内,根据到达加热 - 冷却通道系统的空气流的温度,将这些计量孔关闭到不同程度。 流经喷嘴叶片和转子叶片的热气体的一部分允许至少在低涡轮机负载下经由定子环和定子护罩段之间的间隙到达环形空间。