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    • 1. 发明授权
    • Variable capacity pump with dual springs
    • 可变容量泵,带双弹簧
    • US08011908B2
    • 2011-09-06
    • US12304518
    • 2007-07-06
    • Matthew WilliamsonMichal Nemec
    • Matthew WilliamsonMichal Nemec
    • F04C2/00F04C14/18
    • F04C2/3442F04C14/226
    • A variable capacity vane pump has a pump control ring that is moveable to alter the capacity of the pump. A control chamber is formed between the pump casing and the control ring. The control chamber is operable to receive pressurized fluid to create a force to move the control ring to reduce the volumetric capacity of the pump. A primary return spring acts between control ring and the casing to bias the control ring towards a position of maximum volumetric capacity. A secondary return spring is mounted in the casing and is configured to engage the control ring after the control ring has moved a predetermined amount. The secondary return spring biases the control ring towards a position of maximum volumetric capacity. The secondary return spring acts against the force of the control chamber to establish a second equilibrium pressure.
    • 可变容量叶片泵具有泵控制环,其可移动以改变泵的容量。 控制室形成在泵壳体和控制环之间。 控制室可操作以接收加压流体以产生移动控制环的力以减小泵的容积。 主回位弹簧作用在控制环和壳体之间,以将控制环偏置到最大容积的位置。 二次复位弹簧安装在壳体中,并且构造成在控制环已经移动预定量之后接合控制环。 次级复位弹簧将控制环偏压到最大容积的位置。 次级复位弹簧抵抗控制室的作用力建立第二平衡压力。
    • 2. 发明申请
    • Variable Capacity Pump with Dual Springs
    • 可变容量泵双弹簧
    • US20090285707A1
    • 2009-11-19
    • US12304518
    • 2007-07-06
    • Matthew WilliamsonMichal Nemec
    • Matthew WilliamsonMichal Nemec
    • F04C14/22F04C2/344
    • F04C2/3442F04C14/226
    • In a traditional variable-displacement vane pump, at lower speeds the pump will often operate at a higher capacity than necessary for that speed, thus wasting energy. A variable capacity vane pump (20) is provided having a pump control ring (44) that is moveable to alter the capacity of the pump (20). A control chamber (60) is formed between the pump casing (22) and the control ring (44). The control chamber (60) is operable to receive pressurized fluid to create a force to move the control ring (44) to reduce the volumetric capacity of the pump (20). A primary return spring (56) acts between the control ring (44) and the casing (22) to bias the control ring (44) towards a position of maximum volumetric capacity. A secondary return spring (62) is mounted in the casing (22) and is configured to engage the control ring (44) after the control ring (44) has moved a predetermined amount. The secondary return spring (62) biases the control ring (44) towards a position of maximum volumetric capacity. The secondary return spring (62) acts against the force of the control chamber (60) to establish a second equilibrium pressure.
    • 在传统的可变排量叶片泵中,在较低速度下,泵通常以比该速度所需的更高的容量运行,从而浪费能量。 提供了一种可变容量叶片泵(20),其具有能够改变泵(20)的容量的泵控制环(44)。 控制室(60)形成在泵壳体(22)和控制环(44)之间。 控制室(60)可操作以接收加压流体以产生移动控制环(44)的力,以减小泵(20)的容积。 主回位弹簧(56)作用在控制环(44)和壳体(22)之间,以将控制环(44)偏压到最大容积的位置。 二次复位弹簧(62)安装在壳体(22)中,并且构造成在控制环(44)移动预定量之后与控制环(44)接合。 次级复位弹簧(62)将控制环(44)偏压到最大容积的位置。 次级复位弹簧(62)抵抗控制室(60)的作用力建立第二平衡压力。
    • 3. 发明授权
    • Oil pump with selectable outlet pressure
    • 油泵可选择出口压力
    • US09388804B2
    • 2016-07-12
    • US13981467
    • 2012-01-27
    • Matthew WilliamsonKen T. Takamatsu-UnuvarDarrell F. Greene
    • Matthew WilliamsonKen T. Takamatsu-UnuvarDarrell F. Greene
    • F01M1/16F04B49/22F04B53/18F16N23/00
    • 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。
    • 5. 发明授权
    • Vane pump with substantially constant regulated output
    • 叶片泵具有基本恒定的调节输出
    • US08079826B2
    • 2011-12-20
    • US11968679
    • 2008-01-03
    • David R. ShulverCezar TanasucaMatthew Williamson
    • David R. ShulverCezar TanasucaMatthew Williamson
    • F04B49/00
    • F04C2/3442F04C14/226
    • A variable displacement vane pump provides a substantially constant output pressure in its regulated operation region. A longitudinal axis of the control spring is inclined, with respect to a plane through the rotational axis of a pivot and a contact point between the control ring and the control spring. The inclination reduces 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. The reduced length moment arm offsets the increase in the moment produced by compression of the control spring is offset to achieve a substantially constant output pressure. The control spring is compressed a reduced amount during pump operation to minimize the change in output force exerted by the control spring as the control ring moves between positions.
    • 可变排量叶片泵在其调节操作区域中提供基本恒定的输出压力。 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。 当泵的控制环从最大位移位置移动到最小位移位置时,该倾斜减小了力矩臂在弹簧和枢轴之间的长度。 减小的长度力矩臂抵消由控制弹簧的压缩产生的力矩的增加被抵消以实现基本恒定的输出压力。 在泵操作期间,控制弹簧被压缩减少的量,以最小化当控制环在位置之间移动时由控制弹簧施加的输出力的变化。
    • 7. 发明申请
    • Pressure relief valve with debris trap
    • 减压阀带有碎屑捕集器
    • US20060185737A1
    • 2006-08-24
    • US11337902
    • 2006-01-23
    • Matthew WilliamsonPaul Hodges
    • Matthew WilliamsonPaul Hodges
    • F16K15/00
    • F16K17/0426Y10T137/7925
    • A pressure relief valve for a pump includes a recess in its surface adjacent the high pressure side of the pump. The recess acts as a trap to capture and retain debris particles in the working fluid. By capturing and retaining the debris particles in the recess, jamming of the pressure relief valve in an open position can be avoided. Preferably, the upper edge of the recess includes a chamfered edge which enhances the likelihood of the debris particles entering the recess. Also preferably, the recess can be magnetized, or a magnetic member can be inserted into the recess, to enhance the capture and retention of magnetic debris particles in the recess.
    • 用于泵的减压阀包括在其邻近泵的高压侧的表面中的凹部。 凹槽用作捕获并保留工作流体中的碎屑颗粒的陷阱。 通过捕获和保持凹陷中的碎屑颗粒,可以避免泄压阀在打开位置的堵塞。 优选地,凹槽的上边缘包括倒角边缘,其增加了碎屑颗粒进入凹部的可能性。 还优选地,凹部可以被磁化,或者磁性构件可以插入凹部中,以增强磁性碎片颗粒在凹部中的捕获和保持。
    • 10. 发明授权
    • Control system and method for pump output pressure control
    • 泵输出压力控制的控制系统和方法
    • US08496445B2
    • 2013-07-30
    • US13524490
    • 2012-06-15
    • David R. ShulverMatthew WilliamsonAdrian Cioc
    • David R. ShulverMatthew WilliamsonAdrian Cioc
    • F04B49/03
    • 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。