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1. 发明授权

US07922468B2 Gear pump with improved inlet port 有权
标题翻译：齿轮泵具有改进的进气口
公开(公告)号：US07922468B2
公开(公告)日：2011-04-12
申请号：US11917910
申请日：2006-06-22
申请人： Peter Lit Ming Chang
发明人： Peter Lit Ming Chang
IPC分类号： F03C4/00 , F04C18/00 , F04C2/00
CPC分类号： F04C2/102 , F04C2/086 , F04C15/06 , F04C2250/10
摘要： A gear pump is provided and includes an inlet port which terminates, in the pumping direction of the rotor set, in a radially inwardly extending ramp portion. The ramp portion operates to direct working fluid from an inlet radially inwardly into a pumping chamber of the rotor set which is passing over the ramp portion. By closing the pumping chamber at a radially inwardly point, the filling efficiency of the pumping chamber is improved, reducing cavitation and/or operating noise of the pump.
摘要翻译：齿轮泵被设置并且包括一个入口端口，其沿着转子组的泵送方向终止于径向向内延伸的斜坡部分。斜坡部分操作以将工作流体从入口径向向内引导到转过过斜坡部分的转子组的泵送室。通过在径向向内的点处关闭泵送室，改善泵送室的填充效率，减少泵的气蚀和/或操作噪声。

2. 发明申请

US20100215537A1 Gear Pump With Improved Inlet Port 有权
标题翻译：齿轮泵改进的入口端口
公开(公告)号：US20100215537A1
公开(公告)日：2010-08-26
申请号：US11917910
申请日：2006-06-22
申请人： Peter Lit Ming Chang
发明人： Peter Lit Ming Chang
IPC分类号： F01C1/10
CPC分类号： F04C2/102 , F04C2/086 , F04C15/06 , F04C2250/10
摘要： With a traditional gear pump inlet design it is difficult to fill the pumping chamber when the inlet pressure is low or the operating speed is high A gear pump (100) is provided and includes an inlet port (116) which terminates, in the pumping direction of the rotor set (104) in a radially inwardly extending ramp portion (132) The ramp portion (132) operates to direct working fluid from the inlet (116) radially inwardly into the pumping chamber (126) of the rotor set (104) which is passing over the ramp portion (132) By closing the pumping chamber (126) at a radially inwardly point, the filling efficiency of the pumping chamber (126) is improved, reducing cavitation and/or operating noise of the pump.
摘要翻译：使用传统的齿轮泵入口设计，当入口压力低或运行速度高时，难以填充泵送室。设置有齿轮泵（100），并且包括在抽吸方向终止的入口（116）转子组件（104）在径向向内延伸的斜坡部分（132）中。斜坡部分（132）操作以将工作流体从入口（116）径向向内引导到转子组（104）的泵送室（126）其通过斜坡部分（132）。通过在径向向内的点处关闭泵送室（126），改善泵送室（126）的填充效率，减少泵的气蚀和/或操作噪声。

3. 发明申请

US20120093672A1 DIRECT CONTROL LINEAR VARIABLE DISPLACEMENT VANE PUMP 审中-公开
标题翻译：直接控制线性可变位移VANE泵
公开(公告)号：US20120093672A1
公开(公告)日：2012-04-19
申请号：US13254207
申请日：2010-02-23
申请人： Florin Stratulat , Peter Lit Ming Chang , Gil Hadar , Peter Krug
发明人： Florin Stratulat , Peter Lit Ming Chang , Gil Hadar , Peter Krug
IPC分类号： F01C20/18
CPC分类号： F04C14/223 , F16H57/0436
摘要： A fluid pumping system for a power transmission device includes a variable displacement vane pump having a housing containing a rotor, a plurality of vanes coupled to the rotor and a linearly translatable slide for varying the displacement of the pump. A control system varies the displacement of the pump and provides a fluid output pressure selected from a continuously variable range of output pressures which are independent from the operating speed of the pump. The control system includes a linear actuator for moving the slide between minimum and maximum pump displacement positions. The linear actuator includes an electric stepper motor for bi-directionally translating an actuator shaft acting on the slide.
摘要翻译：用于动力传递装置的流体泵送系统包括可变排量叶片泵，其具有容纳转子的壳体，联接到转子的多个叶片和用于改变泵的位移的可线性平移滑动件。控制系统改变泵的位移并且提供选自独立于泵的操作速度的输出压力的连续可变范围内的流体输出压力。控制系统包括用于在最小和最大泵位移位置之间移动滑块的线性致动器。线性致动器包括用于双向平移作用在滑块上的致动器轴的电步进电动机。

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