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    • 1. 发明申请
    • SCAVENGE GEAR PUMP
    • SCAVENGE齿轮泵
    • US20130323104A1
    • 2013-12-05
    • US13484538
    • 2012-05-31
    • DANIEL ALECUPierre GauvinRitchie Domingo
    • DANIEL ALECUPierre GauvinRitchie Domingo
    • F04C2/18
    • F04C2/18F04C15/0019F04C15/0034F04C15/0088
    • A scavenge gear pump and its method of operation is described. The scavenge gear pump defines a pump chamber in which a pair of toothed gears are rotatably driven to pump an oil-air mixture from an inlet passage where the oil mixture is at low pressure, to an outlet passage where the air and oil has separated and is at high pressure. The gears are intermeshed in a meshing area between the inlet and the outlet passages and an oil nozzle is provided in a downstream region disposed in relation to the gear meshing area to inject oil under pressure in that area to occupy the volumes between the intermeshed gear teeth whereby to prevent air bubbles from being carried back to an upstream region adjacent the inlet passage. Accordingly, the volumetric efficiency of the pump is improved and it is more tolerant to back pressure.
    • 描述了一种清扫齿轮泵及其操作方法。 扫气齿轮泵限定了泵室,其中一对齿轮被可旋转地驱动以将油气混合物从油混合物处于低压的入口通道泵送到空气和油分离的出口通道, 在高压下。 齿轮啮合在入口和出口通道之间的啮合区域中,并且在相对于齿轮啮合区域设置的下游区域中设有油嘴,以在该区域内的压力下注入油以占据相互啮合的齿轮齿之间的体积 从而防止气泡被运送到与入口通道相邻的上游区域。 因此,提高了泵的体积效率,并且其对背压更加宽容。
    • 2. 发明授权
    • Scavenge gear pump
    • 清扫齿轮泵
    • US09033690B2
    • 2015-05-19
    • US13484538
    • 2012-05-31
    • Daniel AlecuPierre GauvinRitchie Domingo
    • Daniel AlecuPierre GauvinRitchie Domingo
    • F04C2/18F04C15/00
    • F04C2/18F04C15/0019F04C15/0034F04C15/0088
    • A scavenge gear pump and its method of operation is described. The scavenge gear pump includes a pump housing defining a pump chamber, an inlet passage, an outlet passage, and a fluid injection passage in fluid communication with the pump chamber. The inlet passage receives an admixed fluid at low pressure and the outlet passage the admixed fluid at high pressure from a downstream region of said pump chamber. The fluid injection passage receives a third fluid at an injection pressure for input into the pump chamber. A pair of driveable gears is disposed in the pump chamber. The third fluid is injected directly into the gear meshing area of the pump chamber through the fluid injection passage so that the third fluid fills voids at least between said intermeshing teeth of the driveable gears and so that the second fluid does not occupy the gear meshing area.
    • 描述了一种清扫齿轮泵及其操作方法。 扫气齿轮泵包括限定泵室的泵壳体,入口通道,出口通道和与泵室流体连通的流体喷射通道。 入口通道在低压下接收混合流体,并且出口通过来自所述泵室的下游区域的高压混合流体。 流体喷射通道以注射压力接收第三流体以输入泵室。 一对可驱动的齿轮设置在泵室中。 第三流体通过流体注入通道直接注入到泵室的齿轮啮合区域中,使得第三流体至少在可驱动齿轮的相互啮合的齿之间填充空隙,使得第二流体不占据齿轮啮合区域 。
    • 7. 发明授权
    • Connection for generator in a gas turbine engine
    • 燃气轮机发电机连接
    • US09169780B2
    • 2015-10-27
    • US13183848
    • 2011-07-15
    • Barry BarnettDaniel AlecuAndreas Eleftheriou
    • Barry BarnettDaniel AlecuAndreas Eleftheriou
    • F02C7/06F02C7/32F02C7/36
    • F02C7/06F02C7/32F02C7/36F05D2260/202
    • A gas turbine engine having an electric generator includes a transmission shaft extending along a longitudinal axis of the engine and drivingly interconnecting a turbine shaft of the engine and a rotor shaft of the electric generator. The transmission shaft is engaged by splined mating connections with the turbine shaft and the rotor shaft. The transmission shaft has a shear neck defining a reduced radial wall thickness with respect to a remainder of the transmission shaft such as to provide a weakened region of the transmission shaft. An annular support structure, concentric with and surrounding the transmission shaft, is axially located between the shear neck and a forward end of the transmission shaft engaged to the turbine shaft, and includes a bearing operable to rotationally support the transmission shaft.
    • 具有发电机的燃气涡轮发动机包括:沿着发动机的纵轴延伸的传动轴,并将发动机的涡轮轴与发电机的转子轴驱动连接。 传动轴通过与涡轮轴和转子轴的花键配合连接接合。 传动轴具有剪切颈部,其相对于传动轴的其余部分限定径向壁厚度减小,以便提供传动轴的弱化区域。 与传动轴同心并且围绕传动轴的环形支撑结构轴向地位于剪切颈部和接合到涡轮轴的传动轴的前端之间,并且包括可操作以可旋转地支撑传动轴的轴承。