Hydraulic Drive System for Cryogenic Pump
    3.
    发明申请
    Hydraulic Drive System for Cryogenic Pump 有权
    低温泵液压驱动系统

    公开(公告)号:US20170058878A1

    公开(公告)日:2017-03-02

    申请号:US14833847

    申请日:2015-08-24

    申请人: Caterpillar Inc.

    IPC分类号: F04B15/08 F04B9/117

    摘要: A drive system for a cryogenic pump is provided including a spool housing having a plurality of valves disposed therein about a pump axis and a tappet housing including a plurality of tappet bores, each tappet bore in communication with a respective one of the plurality of valves. A collection cavity collects hydraulic fluid from the tappet bores. A pump flange includes a fluid inlet and a fluid outlet. An inlet manifold directs hydraulic fluid received through the fluid inlet to each of the plurality of valves. An outlet manifold directs hydraulic fluid from each of the valves and the collection cavity to the fluid outlet.

    摘要翻译: 提供了一种用于低温泵的驱动系统,其包括具有围绕泵轴设置的多个阀的卷轴壳体和包括多个挺杆孔的挺杆壳体,每个挺杆孔与多个阀中的相应一个连通。 收集腔从挺杆孔收集液压流体。 泵法兰包括流体入口和流体出口。 入口歧管将通过流体入口接收的液压流体引导到多个阀中的每一个。 出口歧管将液压流体从每个阀和收集腔引导到流体出口。

    Fluid Pump Having Liquid Reservoir and Modified Pressure Relief Slot
    5.
    发明申请
    Fluid Pump Having Liquid Reservoir and Modified Pressure Relief Slot 有权
    具有液体储存器和改进的泄压槽的流体泵

    公开(公告)号:US20160123312A1

    公开(公告)日:2016-05-05

    申请号:US14990949

    申请日:2016-01-08

    摘要: A pump, which generally includes a pump housing and a pump piston. The pump housing defines a central longitudinal bore, a transverse bore communicating with the central bore for conveying a liquid through the pump housing, a liquid reservoir communicating with the central bore and the transverse bore for retaining an amount of the liquid conveyed through the transverse bore and a pressure relief slot extending from the transverse bore to the liquid reservoir. The pump piston is axially and rotatably slidable within the central longitudinal bore for pumping the liquid through the transverse bore.

    摘要翻译: 泵,其通常包括泵壳体和泵活塞。 泵壳体限定中心纵向孔,与中心孔连通的横向孔,用于通过泵壳体输送液体;与中心孔和横向孔连通的液体储存器,用于保持一定量的液体通过横向孔 以及从所述横向孔延伸到所述液体储存器的减压槽。 泵活塞在中心纵向孔内轴向和可旋转地滑动,用于将液体泵送通过横向孔。

    PUMP UNIT
    6.
    发明申请
    PUMP UNIT 审中-公开
    泵单元

    公开(公告)号:US20150316012A1

    公开(公告)日:2015-11-05

    申请号:US14649578

    申请日:2013-11-14

    发明人: THOMAS MAGILL

    摘要: A pump unit for a fuel injection system is disclosed. The pump unit has a low pressure fuel supply line and a high pressure fuel outlet. A pumping chamber having a plunger is operable to perform a pumping cycle comprising a pumping stroke and a filling stroke. The pump unit also includes an inlet valve having an inlet valve member movable between an open position for permitting the supply of fuel to the pumping chamber from the low pressure fuel supply line and a closed position for inhibiting the supply of fuel from the pumping chamber to the low pressure supply line. An outlet valve is provided in the high pressure fuel outlet. The pump unit also includes means for coupling the plunger to the inlet valve member. The present application also relates to a method of operating a pump unit; and a valve for a fuel injection system.

    摘要翻译: 公开了一种用于燃料喷射系统的泵单元。 泵单元具有低压燃料供应管线和高压燃料出口。 具有柱塞的泵送室可操作以执行包括泵送冲程和填充冲程的泵送循环。 泵单元还包括入口阀,入口阀构件可在允许从低压燃料供应管线向泵送室供应燃料的打开位置和用于禁止从泵送室供应燃料的关闭位置之间移动的入口阀构件 低压供应线。 出口阀设置在高压燃料出口中。 泵单元还包括用于将柱塞连接到入口阀构件的装置。 本申请还涉及一种操作泵单元的方法; 以及用于燃料喷射系统的阀。

    FUEL PUMP FOR AN INTERNAL COMBUSTION ENGINE
    7.
    发明申请
    FUEL PUMP FOR AN INTERNAL COMBUSTION ENGINE 有权
    燃油泵用于内燃机

    公开(公告)号:US20140193281A1

    公开(公告)日:2014-07-10

    申请号:US13736730

    申请日:2013-01-08

    申请人: CUMMINS INC.

    IPC分类号: F04B53/10 F04B19/22

    摘要: A high-pressure fuel pump for an internal combustion engine is described. The high-pressure fuel pump includes an improved configuration that beneficially simplifies certain features of the high-pressure fuel pump. More specifically, the disclosure provides for an inlet check valve positioned along an inlet fuel circuit and an outlet fuel circuit of the high-pressure pump that provides a path for a low-pressure inlet fuel flow to and a path for a high-pressure output fuel flow from a pumping chamber of the fuel pump. Because of the configuration of the inlet check valve and the outlet check valve, the complexity of high-pressure fuel pump is beneficially reduced, decreasing the cost of components and assembly and improving the life and reliability of high-pressure fuel pump.

    摘要翻译: 描述了一种用于内燃机的高压燃料泵。 高压燃料泵包括有利地简化了高压燃料泵的某些特征的改进的构造。 更具体地,本公开提供了一种沿着入口燃料电路和高压泵的出口燃料回路定位的入口止回阀,其提供用于低压入口燃料流的路径和用于高压输出的路径 来自燃料泵的泵送室的燃料流。 由于入口止回阀和出口止回阀的配置,有利地降低了高压燃油泵的复杂性,降低了部件和组装成本,提高了高压燃油泵的使用寿命和可靠性。

    Pump with side inlet valve for improved functioning in an inverted container
    8.
    发明授权
    Pump with side inlet valve for improved functioning in an inverted container 失效
    具有侧进气阀的泵,用于改进倒置容器的功能

    公开(公告)号:US08591207B2

    公开(公告)日:2013-11-26

    申请号:US12958468

    申请日:2010-12-02

    申请人: Nick Ciavarella

    发明人: Nick Ciavarella

    IPC分类号: F04B35/04

    CPC分类号: F04B53/1072 F04B7/04

    摘要: A pump for use in an inverted dispenser is disclosed herein. In one embodiment, the liquid pump includes a fluid chamber that has a top portion when in the inverted position and at least one side wall located below the top portion. A liquid intake port extends through the at least one side wall and allows fluid to flow into the fluid chamber. The pump also includes a check valve to prevent fluid from flowing out of the fluid chamber through the fluid intake port that is located in the at least one side wall. Actuation of the liquid pump in a first direction causes fluid to enter the fluid chamber through the fluid intake port and actuation of the liquid pump in a second direction causes liquid to exit the fluid chamber trough the fluid chamber outlet and out of a dispensing outlet. In one embodiment, the check valve is an elastomeric valve. The elastomeric valve may include a top portion to seal of an inlet opening in the top of an existing pump to convert the pump into a pump having an inlet opening below the top of the pump. In another embodiment, the fluid piston in the liquid pump is the check valve that seals off the intake opening from the fluid chamber when the fluid piston is moved past the inlet opening.

    摘要翻译: 本文公开了一种用于倒置分配器的泵。 在一个实施例中,液体泵包括流体室,其在处于倒置位置时具有顶部部分,以及位于顶部部分下方的至少一个侧壁。 液体吸入口延伸穿过至少一个侧壁并允许流体流入流体室。 泵还包括止回阀,以防止流体通过位于至少一个侧壁中的流体进入口从流体室流出。 液体泵在第一方向的致动导致流体通过流体进入口进入流体室,并且液体泵在第二方向上的致动导致液体通过流体室出口离开流体室并离开分配出口。 在一个实施例中,止回阀是弹性阀。 弹性阀可以包括用于密封现有泵的顶部中的入口开口的顶部部分,以将泵转换成具有在泵的顶部下方的入口的泵。 在另一个实施例中,液体泵中的流体活塞是止回阀,当流体活塞移动通过入口时,该止回阀将流体开口与流体室密封。

    VALVELESS RECIPROCATING COMPRESSOR
    9.
    发明申请
    VALVELESS RECIPROCATING COMPRESSOR 有权
    有价值的压缩机

    公开(公告)号:US20130189139A1

    公开(公告)日:2013-07-25

    申请号:US13354263

    申请日:2012-01-19

    IPC分类号: F04B7/04

    摘要: A system, in certain embodiments, includes a compression cylinder configured to mount to a reciprocating compressor. The compression cylinder includes an intake port and a discharge port. The system also includes a piston assembly disposed within the compression cylinder. The piston assembly includes a piston configured to selectively block the intake port upon movement of the piston assembly relative to the compression cylinder.

    摘要翻译: 在某些实施例中,系统包括构造成安装到往复式压缩机的压缩缸。 压缩筒包括进气口和排出口。 该系统还包括设置在压缩气缸内的活塞组件。 活塞组件包括活塞,该活塞构造成在活塞组件相对于压缩气缸移动时选择性地阻挡进气口。

    Volumetric pump
    10.
    发明授权
    Volumetric pump 有权
    容量泵

    公开(公告)号:US08172799B2

    公开(公告)日:2012-05-08

    申请号:US11877371

    申请日:2007-10-23

    IPC分类号: A61M1/00

    摘要: In one embodiment, a volumetric pump in a medical fluid delivery system comprises at least one piston in a hollow cylinder, the pump having at least one inlet port through which a medical fluid can be sucked into a pump chamber during an instroke of said piston, and at least one outlet port through which the medical fluid can be expelled during an outstroke of the piston. The piston or the hollow cylinder can be actuated directly or indirectly by a rotor. This rotor transmits on the one hand a bi-directional linear movement to the piston or to the cylinder and on the other hand, a bi-directional angular movement either to the piston or to another ratable element in order to open and close alternately the inlet and outlet ports.

    摘要翻译: 在一个实施例中,药物流体输送系统中的体积泵包括中空圆柱体中的至少一个活塞,所述泵具有至少一个入口,在所述活塞触发期间,医用流体可以通过该吸入口吸入泵室中, 以及至少一个出口,在活塞的行程中可以排出医用流体。 活塞或中空圆筒可由转子直接或间接地致动。 该转子一方面传递到活塞或气缸的双向线性运动,另一方面传递到活塞或另一个可弹性元件的双向角运动,以交替地开启和关闭入口 和出口端口。