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    • 34. 发明申请
    • Vane Pump With Substantially Constant Regulated Output
    • 具有基本恒定调节输出的叶片泵
    • US20080175724A1
    • 2008-07-24
    • US11968679
    • 2008-01-03
    • David R. ShulverCezar TanasucaMatthew Williamson
    • David R. ShulverCezar TanasucaMatthew Williamson
    • F04B49/00
    • F04C2/3442F04C14/226
    • A variable displacement vane pump is provided which is able to achieve a substantially constant output pressure in its regulated operation region. The longitudinal axis of the control spring of the pump is inclined, with respect to a plane through the rotational axis of the pivot and the contact point between the control ring and the control spring, and this inclination results in a reduction in the length of the moment arm between the spring and the pivot when the control ring of the pump is moved from the maximum displacement position to the minimum displacement position. By reducing the length of this moment arm, the increase in the moment produced by compression of the control spring is offset, resulting in a substantially constant output pressure in the regulated operating range of the pump. The inclination further results in a reduction in the amount by which the control spring is compressed when the control ring moves from the first position to the second position. This reduction in the change in length of the control spring results in a corresponding reduction in the amount by which the spring force exerted by the control spring increases as the control ring moves from the first position to the second position.
    • 提供了可变排量叶片泵,其能够在其调节操作区域中实现基本上恒定的输出压力。 泵的控制弹簧的纵向轴线相对于通过枢轴的旋转轴线的平面和控制环和控制弹簧之间的接触点倾斜,并且该倾斜导致 当泵的控制环从最大位移位置移动到最小位移位置时,弹簧和枢轴之间的力矩臂。 通过减小该力臂的长度,通过控制弹簧的压缩产生的力矩的增加被偏移,导致在泵的调节操作范围内基本上恒定的输出压力。 当控制环从第一位置移动到第二位置时,倾斜度进一步减小了控制弹簧被压缩的量。 控制弹簧长度变化的这种减小导致控制环从第一位置移动到第二位置时由控制弹簧施加的弹簧力增加的量的相应减小。
    • 35. 发明申请
    • Method and system for providing voltage
    • 提供电压的方法和系统
    • US20060291257A1
    • 2006-12-28
    • US11166871
    • 2005-06-24
    • Matthew WilliamsonMarcus May
    • Matthew WilliamsonMarcus May
    • H02M3/335
    • H02M11/00
    • A system and method to provide voltage to a device from the operating mode of an integrated circuit is disclosed. In a particular embodiment, the disclosed system includes an integrated circuit having an input/output pin and a DC-DC converter circuit that is coupled to the input/output pin and including a transistor element. The DC-DC converter circuit has a first mode of operation and a second mode of operation. In the first mode of operation, the DC-DC converter circuit performs voltage conversion and in the second mode of operation, the transistor element of the DC-DC converter circuit is used to selectively apply a voltage supply to an external module coupled to the input/output pin.
    • 公开了一种从集成电路的工作模式向装置提供电压的系统和方法。 在特定实施例中,所公开的系统包括具有输入/输出引脚和DC-DC转换器电路的集成电路,该DC-DC转换器电路耦合到输入/输出引脚并且包括晶体管元件。 DC-DC转换器电路具有第一操作模式和第二操作模式。 在第一操作模式中,DC-DC转换器电路执行电压转换,并且在第二操作模式中,DC-DC转换器电路的晶体管元件用于选择性地向耦合到输入端的外部模块施加电压源 /输出引脚。
    • 39. 发明申请
    • OIL PUMP WITH SELECTABLE OUTLET PRESSURE
    • 具有可选择出口压力的油泵
    • US20130343937A1
    • 2013-12-26
    • US13981467
    • 2012-01-27
    • Matthew WilliamsonKen T. Takamatsu-UnuvarDarrel F. Greene
    • Matthew WilliamsonKen T. Takamatsu-UnuvarDarrel F. Greene
    • F04B49/22
    • F04B49/22F01M1/16F04B53/18F16N23/00
    • An oil pressure relief valve for use in the oil pump lubrication system of an internal combustion engine is controlled by both oil pump outlet pressure and by pilot pressure from a pilot valve which is selectively applied by a control member, preferably a two-way valve that is operated by the engine control module. The pilot valve selectively supplies one of the oil pump outlet pressure or the engine gallery pressure to the control member which selectively supplies pilot valve pressure to the oil pump pressure relief valve which has a single piston. The pilot valve includes first and second pistons for selectively controlling back pressure from the pressure relief valve and for managing changes in oil pressure due to changes in the engine gallery to maintain a virtually constant pressure even as oil pump speed increases when the control member connects the pilot valve to the pressure relief valve resulting in a fuel economy benefit and improved control of the oil pump pressure.
    • 用于内燃机的油泵润滑系统的油压释放阀由油泵出口压力和先导压力由控制构件选择性地施加的先导阀控制,优选地是双向阀, 由发动机控制模块操作。 先导阀选择性地将油泵出口压力或发动机油缸压力中的一个提供给选择性地向具有单个活塞的油泵压力释放阀供给先导阀压力的控制构件。 先导阀包括第一和第二活塞,用于选择性地控制来自减压阀的反压力,并且用于管理由于发动机工作室的变化引起的油压变化,以便即使当控制构件连接 先导阀到减压阀,导致燃油经济性的好处和油泵压力的改进控制。
    • 40. 发明申请
    • Control System and Method for Pump Output Pressure Control
    • 泵输出压力控制控制系统及方法
    • US20120251342A1
    • 2012-10-04
    • US13524490
    • 2012-06-15
    • David R. ShulverMatthew WilliamsonAdrian C. Cioc
    • David R. ShulverMatthew WilliamsonAdrian C. Cioc
    • F04B17/04F04B23/00
    • F04C2/3442F01M1/16F04C14/226F04C2270/18
    • A pump system includes pump having a control feature which, responsive to a supply of pressurized working fluid, reduces the pressure of the working fluid pressurized by the pump. The control feature is connected to the output of the pump by a regulating valve. The control feature receives pressurized working fluid to decrease the output of the pump in response to the pressure of the supplied working fluid. A regulating valve selectively connects the pressurized working fluid to the control feature. The regulating valve has a control port to receive pressurized working fluid from the pump to urge the valve to a closed position against a biasing force. A controllable valve is operable to interrupt the supply of pressurized working fluid to control port to alter the output pressure of the pump.
    • 泵系统包括具有控制特征的泵,该控制特征响应于加压工作流体的供应而减小由泵加压的工作流体的压力。 控制功能通过调节阀连接到泵的输出。 控制特征接收加压工作流体,以响应于所提供的工作流体的压力来减小泵的输出。 调节阀将加压工作流体选择性地连接到控制特征。 调节阀具有控制端口,用于接收来自泵的加压工作流体,以克服偏压力将阀推到关闭位置。 可控阀可操作以中断供给加压工作流体到控制端口以改变泵的输出压力。