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    • 2. 发明申请
    • Device For Converting AC Power To Multiple DC Outputs With Retractable Cords And Multiple Adapter Tips
    • 用于将交流电源转换为多个直流输出的设备,具有可伸缩线和多个适配器提示
    • US20070279954A1
    • 2007-12-06
    • US11757832
    • 2007-06-04
    • Michael GarrettKristina GenslakMatthew ChristensenSamuel MillerChristopher Hekel
    • Michael GarrettKristina GenslakMatthew ChristensenSamuel MillerChristopher Hekel
    • H02M7/04H02M5/42
    • H02M3/33561
    • An electrical adapter is disclosed that includes a power supply circuit, a sensing circuit and one or more universal DC output connectors. The electrical adapter is configured to convert AC input power at a nominal 120 volts AC to one or more DC output voltages which has the ability to provide different nominal DC voltages to each universal DC output connector depending on the portable DC device connected thereto. The electrical adapter includes a device sensing circuit that automatically senses when a portable DC device is connected to or disconnected from any of the universal DC output connectors. The electrical adapter also includes a voltage and current sensing circuit that monitors the voltage and current applied to the portable DC device connected to the universal DC connector that is used to provide closed loop feedback to the power supply circuit in order to adjust the voltage applied to the universal DC output connector as a function of the voltage and current requirements of the portable DC device connected thereto. As such, each universal DC output connector can be used for portable DC devices having different nominal DC requirements. For example, an electrical adapter with four universal DC output connectors can be used to power four cell phones with nominal 5 volt DC requirements. The same universal DC connectors can alternatively be used to charge four laptop computers with a nominal 15 volt DC requirement or any combination thereof with no changes of the circuitry required. The electrical adapter in accordance with the present invention provides significantly more flexibility than known electrical adapters in which each connector has a dedicated output voltage.
    • 公开了一种电适配器,其包括电源电路,感测电路和一个或多个通用DC输出连接器。 电适配器被配置为将额定120伏交流电的交流输入功率转换成一个或多个直流输出电压,其具有根据连接到其上的便携式直流设备向每个通用直流输出连接器提供不同的标称直流电压的能力。 电适配器包括一个设备感测电路,它自动检测便携式直流设备何时连接到任何通用直流输出连接器或与任何通用直流输出连接器断开连接。 电气适配器还包括电压和电流检测电路,其监测施加到连接到通用DC连接器的便携式直流设备的电压和电流,所述便携式DC设备用于向电源电路提供闭环反馈,以便调整施加到 通用DC输出连接器作为与其连接的便携式直流设备的电压和电流要求的函数。 因此,每个通用DC输出连接器可用于具有不同标称直流要求的便携式直流设备。 例如,具有四个通用直流输出连接器的电气适配器可用于为标称5伏直流要求的四台手机供电。 替代地,相同的通用DC连接器可以用于对具有标称15伏直流要求的四台笔记本电脑充电,或者其任何组合,而不需要电路的改变。 根据本发明的电适配器比其中每个连接器具有专用输出电压的已知电气适配器提供显着更大的灵活性。
    • 3. 发明申请
    • GEAR MOTOR START UP CONTROL
    • 齿轮马达启动控制
    • US20050058566A1
    • 2005-03-17
    • US10659704
    • 2003-09-11
    • Matthew ChristensenLarry AndersonGeorge Kadlicko
    • Matthew ChristensenLarry AndersonGeorge Kadlicko
    • F04C2/18F04C14/06F04C15/00F03C2/00
    • F04C14/06F03C2/08F04C2/18F04C15/0026F04C15/0088
    • A hydraulic motor comprising a housing having a fluid inlet. A fluid outlet and a cavity there between, a pair of intermeshing gear elements rotatable in the housing about mutually parallel axes. Each of the gear elements having a set of gear teeth disposed about the periphery of the element and a support shaft extending from oppositely directed end faces of the set of gear teeth. A bearing assembly located on opposite sides of the cavity in said housing to support the shafts for rotation about respective ones of the axes. Each of the bearing assemblies having a sealing face overlying the end faces and biased into engage with the end faced by a pressure compensating seal located between the bearing and the housing. The sealing face having a channel extending partially about the spindle and in fluid communication with the inlet to introduce fluid under pressure between the faces.
    • 一种液压马达,其包括具有流体入口的壳体。 流体出口和其间的空腔,一对相互啮合的齿轮元件可围绕彼此平行的轴线在壳体中旋转。 每个齿轮元件具有围绕元件的周边布置的一组齿轮齿,以及从该组齿轮齿的相对定向的端面延伸的支撑轴。 轴承组件,其位于所述壳体中的空腔的相对侧上,以支撑所述轴以围绕相应的一个轴线旋转。 每个轴承组件具有覆盖在端面上的密封面并且被偏压成与位于轴承和壳体之间的压力补偿密封件相对的端部相接合。 所述密封面具有部分地围绕所述主轴延伸并且与所述入口流体连通的通道,以在所述面之间的压力下引入流体。