High pressure pump and method of reducing fluid mixing within same
    1.
    发明申请
    High pressure pump and method of reducing fluid mixing within same 审中-公开
    高压泵及减少流体混合的方法

    公开(公告)号:US20090114190A1

    公开(公告)日:2009-05-07

    申请号:US11982013

    申请日:2007-11-01

    IPC分类号: F02M37/04 F04B15/00 F02M59/02

    摘要: To reduce mixing of fluids within a high pressure pump, a pump is provided that comprises a housing, a piston, an annulus, and a first seal. The housing includes an inlet for a first fluid, an inlet for a second fluid, and a piston bore fluidly coupled to the inlet for the first fluid. The piston is moveable within the piston bore and has a first end exposed to the first fluid and a second end exposed to the second fluid. The annulus is defined within the piston bore and is configured to be fluidly coupled to a drain circuit having a pressure less than the pressure of the first fluid. The first seal is coupled to the housing and is located outside of the piston bore. The first seal engages the piston to create a seal that substantially prevents the second fluid from entering the piston bore.

    摘要翻译: 为了减少高压泵内的流体混合,提供了包括壳体,活塞,环形空间和第一密封件的泵。 壳体包括用于第一流体的入口,用于第二流体的入口和与第一流体的入口流体连接的活塞孔。 活塞可在活塞孔内移动并且具有暴露于第一流体的第一端和暴露于第二流体的第二端。 环形空间限定在活塞孔内,并且构造成流体耦合到具有小于第一流体的压力的压力的排水回路。 第一密封件联接到壳体并且位于活塞孔的外部。 第一密封件接合活塞以产生基本上防止第二流体进入活塞孔的密封件。

    Vehicle hydraulic system that provides heat for passenger compartment
    2.
    发明授权
    Vehicle hydraulic system that provides heat for passenger compartment 有权
    为客舱提供热量的车辆液压系统

    公开(公告)号:US06220521B1

    公开(公告)日:2001-04-24

    申请号:US09235358

    申请日:1999-01-21

    IPC分类号: B60H102

    摘要: A vehicle includes a vehicle housing which defines a passenger compartment. Attached to the vehicle housing is a hydraulic system, that includes a hydraulic fluid which flows through at least one passageway within the hydraulic system. Also attached to the vehicle housing is a passenger compartment heating system. The passenger compartment heating system includes a heat exchanger, wherein a portion of the heat exchanger is a segment of the at least one passageway of the hydraulic system.

    摘要翻译: 车辆包括限定乘客舱的车辆外壳。 连接到车辆壳体的是液压系统,其包括流过液压系统内的至少一个通道的液压流体。 还附着在车辆外壳上的是一个客舱加热系统。 乘客舱加热系统包括热交换器,其中热交换器的一部分是液压系统的至少一个通道的一段。

    Tappet assembly
    5.
    发明授权
    Tappet assembly 有权
    挺杆组件

    公开(公告)号:US07748359B2

    公开(公告)日:2010-07-06

    申请号:US11819645

    申请日:2007-06-28

    IPC分类号: F01L1/14

    摘要: In one aspect, the present disclosure is directed to a tappet assembly for a machine. The assembly may include a tappet body, a pin fixedly mounted in the tappet body, and a substantially cylindrical roller mounted about the pin. The roller may have a substantially cylindrical outer surface with a circumferential dimension and a width dimension, the width dimension being defined by two lateral edges. The roller may be configured to provide rolling contact between the outer surface of the roller and a cam lobe. The outer surface of the roller may be crowned such that at maximum operational loading conditions of the machine a footprint of contact pressure from the cam lobe is spread substantially the full width of outer cylindrical surface of the roller.

    摘要翻译: 在一个方面,本公开涉及一种用于机器的挺杆组件。 组件可以包括挺杆本体,固定地安装在挺杆本体中的销和围绕销安装的大致圆柱形的滚子。 辊可以具有基本上圆柱形的外表面,其具有周向尺寸和宽度尺寸,宽度尺寸由两个侧边缘限定。 辊可以构造成在辊的外表面和凸轮凸角之间提供滚动接触。 辊的外表面可以加冠,使得在机器的最大操作负载条件下,来自凸轮凸角的接触压力的占地面积基本上扩大到辊的外圆柱形表面的整个宽度。

    Two wire intensified common rail fuel system
    6.
    发明授权
    Two wire intensified common rail fuel system 有权
    两线加强共轨燃油系统

    公开(公告)号:US07980224B2

    公开(公告)日:2011-07-19

    申请号:US12322479

    申请日:2009-02-03

    IPC分类号: F02M37/04 F02M47/02

    摘要: A fuel system includes a plurality of fuel injectors fluidly connected to a common rail. Each of the fuel injectors has at least one body component and includes an intensifier control valve for controlling movement of an intensifier piston, a needle control valve for controlling movement of a needle valve member, and exactly one electrical actuator coupled with the intensifier control valve and the needle control valve via a coupling linkage. The intensifier control valve and the needle control valve each include a valve member that is movable with respect to a valve seat. The electrical actuator includes an intermediate position during which the valve member of one of the intensifier control valve and the needle control valve is in contact with the respective valve seat, and the valve member of the other of the intensifier control valve and the needle control valve is out of contact with the respective valve seat.

    摘要翻译: 燃料系统包括流体地连接到共轨的多个燃料喷射器。 每个燃料喷射器具有至少一个主体部件,并且包括用于控制增压器活塞运动的增压器控制阀,用于控制针阀构件的运动的针控制阀以及与增压器控制阀耦合的恰好一个电致动器,以及 针控制阀通过联轴器连接。 增压器控制阀和针控制阀各自包括可相对于阀座移动的阀构件。 电致动器包括中间位置,在该中间位置,增压器控制阀和针控制阀之一的阀构件与相应的阀座接触,另一个增压器控制阀的阀构件和针控制阀 与相应的阀座脱离接触。

    Vehicle having hydraulic and power steering systems using a single high pressure pump
    7.
    发明授权
    Vehicle having hydraulic and power steering systems using a single high pressure pump 有权
    具有使用单个高压泵的液压和动力转向系统的车辆

    公开(公告)号:US06234270B1

    公开(公告)日:2001-05-22

    申请号:US09235359

    申请日:1999-01-21

    IPC分类号: F02M700

    摘要: A vehicle comprises a plurality of wheels attached to a vehicle housing. Also attached to the vehicle housing is a power steering system, including a fluid flow circuit, which is operably coupled to a number of the wheels. An internal combustion engine attached to the vehicle housing is connected to a hydraulically actuated system that includes a high pressure pump. An outlet of the high pressure pump is in fluid communication with the fluid flow circuit.

    摘要翻译: 车辆包括附接到车辆外壳的多个车轮。 还连接到车辆壳体的是动力转向系统,其包括可操作地联接到多个车轮的流体流动回路。 连接到车辆外壳的内燃机连接到包括高压泵的液压致动系统。 高压泵的出口与流体流动回路流体连通。

    System for selectively increasing fuel pressure in a fuel injection system
    8.
    发明授权
    System for selectively increasing fuel pressure in a fuel injection system 有权
    用于选择性地增加燃料喷射系统中的燃料压力的系统

    公开(公告)号:US07578283B1

    公开(公告)日:2009-08-25

    申请号:US12216117

    申请日:2008-06-30

    IPC分类号: F02M37/04

    摘要: An assembly is disclosed having a high pressure fuel source, a low pressure fuel source, and a housing. The assembly also has a piston disposed within the housing and dividing the housing into a first chamber, a second chamber, a third chamber, and a fourth chamber. The first and second chambers are fluidly connected to the high pressure fuel source. The third chamber is selectively fluidly connected to the high pressure fuel source and the low pressure fuel source, and the fourth chamber is fluidly connected to the low pressure fuel source. The piston is movable from a first position when the third chamber is selectively connected to the high pressure fuel source. The piston is movable to a second position when the third chamber is selectively connected to the low pressure fuel source.

    摘要翻译: 公开了一种具有高压燃料源,低压燃料源和壳体的组件。 组件还具有设置在壳体内并且将壳体分成第一室,第二室,第三室和第四室的活塞。 第一和第二腔室流体地连接到高压燃料源。 第三室选择性地流体地连接到高压燃料源和低压燃料源,第四腔室流体连接到低压燃料源。 当第三室选择性地连接到高压燃料源时,活塞可从第一位置移动。 当第三室选择性地连接到低压燃料源时,活塞可移动到第二位置。

    Two wire intensified common rail fuel system
    9.
    发明申请
    Two wire intensified common rail fuel system 有权
    两线加强共轨燃油系统

    公开(公告)号:US20090194072A1

    公开(公告)日:2009-08-06

    申请号:US12322479

    申请日:2009-02-03

    IPC分类号: F02M69/46

    摘要: A fuel system includes a plurality of fuel injectors fluidly connected to a common rail. Each of the fuel injectors has at least one body component and includes an intensifier control valve for controlling movement of an intensifier piston, a needle control valve for controlling movement of a needle valve member, and exactly one electrical actuator coupled with the intensifier control valve and the needle control valve via a coupling linkage. The intensifier control valve and the needle control valve each include a valve member that is movable with respect to a valve seat. The electrical actuator includes an intermediate position during which the valve member of one of the intensifier control valve and the needle control valve is in contact with the respective valve seat, and the valve member of the other of the intensifier control valve and the needle control valve is out of contact with the respective valve seat.

    摘要翻译: 燃料系统包括流体地连接到共轨的多个燃料喷射器。 每个燃料喷射器具有至少一个主体部件,并且包括用于控制增压活塞的运动的增压器控制阀,用于控制针阀构件的运动的针控制阀以及与增压器控制阀耦合的恰好一个电致动器,以及 针控制阀通过联轴器连接。 增压器控制阀和针控制阀各自包括可相对于阀座移动的阀构件。 电致动器包括中间位置,在该中间位置,增压器控制阀和针控制阀之一的阀构件与相应的阀座接触,另一个增压器控制阀的阀构件和针控制阀 与相应的阀座脱离接触。

    High-pressure pump
    10.
    发明授权
    High-pressure pump 有权
    高压泵

    公开(公告)号:US07451741B1

    公开(公告)日:2008-11-18

    申请号:US11981109

    申请日:2007-10-31

    IPC分类号: F02M37/04 F02M69/04 F04B39/00

    摘要: The pump described herein provides a potentially lower cost alternative to conventional high-pressure pumps by providing a head, a plunger, and a control valve assembly. The head defines a valve bore having a first diameter, a plunger bore having a second diameter, and an intermediate chamber having a third diameter. The plunger is configured to reciprocate within the plunger bore. The plunger, the plunger bore, and the intermediate chamber at least partially define a pumping chamber. The control valve assembly is coupled to the head and includes an actuator moveable in response to an input signal and a valve element coupled to the actuator. The valve element is received within the valve bore and moveable between an open and a closed position. The valve element includes a body having a fourth diameter and a valve head having a fifth diameter. The first diameter is no larger than the second diameter.

    摘要翻译: 本文所述的泵通过提供头部,柱塞和控制阀组件提供了传统高压泵的潜在的较低成本的替代方案。 头部限定具有第一直径的阀孔,具有第二直径的柱塞孔和具有第三直径的中间室。 柱塞构造成在柱塞孔内往复运动。 柱塞,柱塞孔和中间室至少部分地限定泵送室。 控制阀组件联接到头部并且包括响应于输入信号而可移动的致动器和联接到致动器的阀元件。 阀元件容纳在阀孔内并在打开和关闭位置之间移动。 阀元件包括具有第四直径的主体和具有第五直径的阀头。 第一直径不大于第二直径。