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    Needle controlled fuel system with cyclic pressure generation
    52.
    发明授权
    Needle controlled fuel system with cyclic pressure generation 失效
    具有循环压力发生的针控制燃料系统

    公开(公告)号：US5819704A

    公开(公告)日：1998-10-13

    申请号：US903310

    申请日：1997-07-30

    Applicant: Yul J. Tarr ,  John D. Crofts ,  John T. Carroll, III ,  Laszlo D. Tikk

    Inventor： Yul J. Tarr ,  John D. Crofts ,  John T. Carroll, III ,  Laszlo D. Tikk

    IPC: F02M47/00 ,  F02D41/00 ,  F02D41/20 ,  F02D41/38 ,  F02D41/40 ,  F02M47/02 ,  F02M51/00 ,  F02M55/00 ,  F02M55/02 ,  F02M57/02 ,  F02M59/06 ,  F02M59/36 ,  F02M61/14 ,  F02M63/00 ,  F02M63/02 ,  F02M7/00

    CPC classification number: F02M51/005 ,  F02M47/027 ,  F02M55/005 ,  F02M57/02 ,  F02M57/025 ,  F02M57/026 ,  F02M59/06 ,  F02M59/366 ,  F02M61/14 ,  F02M63/0225 ,  F02D41/3809 ,  F02M2200/21 ,  F02M2547/003

    Abstract: The improved needle controlled common rail fuel system of the present invention includes split common rails serving respective sets of unit injectors. Each unit injector includes a mechanically actuated plunger reciprocally mounted to cyclically create gradual periods of increasing pressure in the common rail during the advancement stroke of the plunger followed by respective periods of decreasing pressure during the plunger's retraction stroke. The fuel injectors include a pressure control valve for controlling the amount of fuel pressurized by the plunger and a needle valve control device including an injection control valve for creating an injection event during a pumping event by controlling the fuel flow to drain so as to control the fuel pressure forces acting on an injector needle valve element. A flow limiting device is provided to limit the fuel flow from a control volume to drain during an injection event thus reducing parasitic losses while maintaining quick valve closing. In addition, a pressure energy recuperation means is provided which utilizes the pressure of the fuel in each injector's pressure chamber as a result of the pressure energy stored in the fuel to assist in retraction of the injector plunger during each pumping event.

    Abstract translation: 本发明的改进的针控共轨燃料系统包括用于各组单元喷射器的分开的共轨。 每个单元喷射器包括机械致动的柱塞，其往复安装以在柱塞的前进行程期间循环地创建共轨中的逐渐增加的压力周期，随后在柱塞的回缩冲程期间各自减小压力周期。 燃料喷射器包括用于控制由柱塞加压的燃料量的压力控制阀和包括喷射控制阀的针阀控制装置，该喷射控制阀用于通过控制排出的燃料流从而在泵送事件期间产生喷射事件，从而控制 作用在喷射器针阀元件上的燃料压力。 提供流动限制装置以在喷射事件期间将燃料流从控制体积限制到排放，从而在保持快速关阀的同时减少寄生损失。 此外，提供了一种压力能量回收装置，其利用存储在燃料中的压力能量，在每个泵送事件期间有助于使喷射器柱塞缩回，从而利用每个喷射器的压力室中的燃料的压力。

    Hydraulic pressure supply pump with multiple sequential plungers
    53.
    发明授权
    Hydraulic pressure supply pump with multiple sequential plungers 失效
    具有多个顺序柱塞的液压供油泵

    公开(公告)号：US5769611A

    公开(公告)日：1998-06-23

    申请号：US709260

    申请日：1996-09-06

    Applicant: Ilija Djordjevic

    Inventor： Ilija Djordjevic

    IPC: F02M39/02 ,  F02M59/06 ,  F02M59/08 ,  F02M63/00 ,  F02M63/02 ,  F04B1/04 ,  F04B1/047 ,  F04B1/053 ,  F04B9/02 ,  F04B27/04

    CPC classification number: F02M59/06 ,  F02M39/02 ,  F02M59/08 ,  F02M63/0001 ,  F02M63/0225 ,  F04B1/0426 ,  F04B1/0456 ,  F04B1/047 ,  F04B1/0535 ,  F04B9/02

    Abstract: A plurality of plungers situated radially in a pump body, are sequentially actuated inwardly by a rotatably driven, eccentrically mounted actuating ring. A central valve housing is coaxially received within the body and includes a fuel inlet chamber and a fuel discharge chamber, which are closely axially aligned. The pump body closely engages the valve housing such that radially extending bores in the body and a portion of the valve housing between the inlet and discharge chambers, together define the pumping chambers. All pumping chambers are connected via short passages in the valve housing, to the common inlet chamber and the common outlet chamber. This configuration, by which all fuel passages and associated valves subject to the pumping pressure are within the central valve housing, not only minimizes the dead volume, but keeps all fuel flows confined within a radius that is smaller than the actuator ring sliding radius, i.e., where the actuating ring contacts the outer ends of the plungers or cam shoes at the outer end of the plungers. As a result, engine or other high viscosity (i.e., "lube oil") can be used to lubricate the sliding surfaces.

    Abstract translation: 径向位于泵体内的多个柱塞由可旋转驱动的偏心安装的致动环顺序地向内致动。 中心阀壳体同轴地容纳在主体内并且包括紧密轴向对准的燃料入口室和燃料排放室。 泵体紧密地接合阀壳体，使得主体中的径向延伸的孔和入口和排出室之间的阀壳体的一部分一起限定了泵送室。 所有泵送室通过阀壳中的短通道连接到公共入口室和公共出口室。 所有燃料通道和相关的阀都受到泵送压力的这种配置在中心阀壳体内，不仅使死体积最小化，而且使所有的燃料流都保持在小于致动器环滑动半径的半径内，即 ，其中致动环在柱塞的外端处接触柱塞或凸轮鞋的外端。 结果，可以使用发动机或其它高粘度（即“润滑油”）润滑滑动表面。

    High pressure electronic common-rail fuel injection system for diesel engines
    54.
    发明授权
    High pressure electronic common-rail fuel injection system for diesel engines 失效
    用于柴油发动机的高压电子共轨燃油喷射系统

    公开(公告)号：US5311850A

    公开(公告)日：1994-05-17

    申请号：US695221

    申请日：1991-05-03

    Applicant: Tiby M. Martin

    Inventor： Tiby M. Martin

    IPC: F02B3/06 ,  F02D41/38 ,  F02M55/02 ,  F02M55/04 ,  F02M59/06 ,  F02M59/36 ,  F02M61/20 ,  F02M63/00 ,  F02M63/02 ,  F02M41/00

    CPC classification number: F02D41/3845 ,  F02D41/3827 ,  F02D41/3836 ,  F02M55/025 ,  F02M55/04 ,  F02M59/06 ,  F02M59/366 ,  F02M61/205 ,  F02M63/0007 ,  F02M63/0225 ,  F02B3/06 ,  F02D2200/0602 ,  Y10T137/85938

    Abstract: A fuel injection system having a novel electromagnetic actuated fuel pump in which four pumping elements, equally-spaced around a camshaft are mounted such that a pair of opposed pumping elements alternate to deliver pressure to a high pressure common rail with a second pair of the pumping pair of pumping elements. In one embodiment of the invention, the pumping process is mechanically actuated, and in another is electronically actuated. The high pressure common rail is adapted to reduce surges in the fuel pressure from the pump by using central and side chambers connected with cross-drilled orifices. The common rail has a relief valve for safety protection not to allow the pressure in the rail to exceed the maximum preset pressure. The electromagnetic injector has a pressure balanced control valve to control fuel flow to the nozzle and has a pressure assistance mechanism at the end of injection to obtain a sharp end of injection. Also, at the beginning of the next injection, the needle opening can be slowed down to meet the engine requirements.

    Abstract translation: 一种具有新型电磁致动燃料泵的燃料喷射系统，其中安装有围绕凸轮轴等间隔的四个泵送元件，使得一对相对的泵送元件交替以将压力输送到高压共轨，其中第二对泵送 一对泵送元件。 在本发明的一个实施例中，泵送过程是机械致动的，另一个是电子致动的。 高压共轨适于通过使用与交叉钻孔连接的中央和侧室减少来自泵的燃料压力的浪涌。 共轨有一个安全阀，用于安全保护，不允许钢轨内的压力超过最大预设压力。 电磁喷射器具有压力平衡控制阀，以控制到喷嘴的燃料流量并且在喷射结束时具有压力辅助机构以获得尖锐的喷射端。 此外，在下一次注射开始时，可​​以减慢针头打开以满足发动机要求。

    High pressure electronic common-rail fuel injection system for diesel engines
    55.
    发明授权
    High pressure electronic common-rail fuel injection system for diesel engines 失效
    用于柴油发动机的高压电子共轨燃油喷射系统

    公开(公告)号：US5035221A

    公开(公告)日：1991-07-30

    申请号：US508068

    申请日：1990-04-11

    Applicant: Tiby M. Martin

    Inventor： Tiby M. Martin

    IPC: F02B3/06 ,  F02D41/38 ,  F02M55/02 ,  F02M55/04 ,  F02M59/06 ,  F02M59/36 ,  F02M61/20 ,  F02M63/00 ,  F02M63/02

    CPC classification number: F02D41/3845 ,  F02D41/3827 ,  F02D41/3836 ,  F02M55/025 ,  F02M55/04 ,  F02M59/06 ,  F02M59/366 ,  F02M61/205 ,  F02M63/0007 ,  F02M63/0225 ,  F02B3/06 ,  F02D2200/0602 ,  Y10T137/85938

    Abstract: A fuel injection system having a novel electromagnetic-actuated fuel pump in which four pumping elements, equally-spaced around a camshaft are mounted such that a pair of opposed pumping elements alternate to deliver pressure to a high pressure common rail with a second pair of pumping elements. In one embodiment of the invention the pumping elements are mechanically actuated, in another they are electronically actuated. The high pressure common rail is adapted to reduce surges in the fuel pressure from the pump up to levels of 20,000 psi. The common rail has a relief valve for controlling the maximum pressure in the common rail chamber. The electromagnetic injection nozzle has a needle valve that is closed by pressure in a balancing chamber having a reduced pressure level less than that of the pressure required to open the valve. When the supply fuel flow is blocked, the valve is closed by a spring, assisted by the pressure in the balancing chamber which overbalances the needle valve when the nozzle pressure has dropped by the termination of the supply fuel flow.

    Abstract translation: 一种具有新型电磁致动燃料泵的燃料喷射系统，其中安装有围绕凸轮轴等间隔的四个泵送元件，使得一对相对的泵送元件交替以将压力输送到具有第二对泵送的高压共轨 元素。 在本发明的一个实施例中，泵送元件是机械致动的，而另一个则是电子致动的。 高压共轨适用于将泵的燃料压力下降至20,000 psi的水平。 共轨具有用于控制共轨室中的最大压力的安全阀。 电磁喷嘴具有针阀，该针阀在平衡室中被压力封闭，该平衡室的压力水平低于打开阀所需的压力的压力水平。 当供应燃料流动被阻塞时，由于平衡室中的压力辅助阀门关闭，当喷嘴压力由于供应燃料流动的终止而使喷嘴压力下降时，针阀过平衡。

    Fuel injection pump for internal combustion engines
    56.
    发明授权
    Fuel injection pump for internal combustion engines 失效
    内燃机燃油喷射泵

    公开(公告)号：US4879984A

    公开(公告)日：1989-11-14

    申请号：US299587

    申请日：1989-01-23

    Applicant: Helmut Rembold ,  Ernst Linder ,  Gottlob Haag

    Inventor： Helmut Rembold ,  Ernst Linder ,  Gottlob Haag

    IPC: F02M41/06 ,  F02M41/14 ,  F02M45/06 ,  F02M59/06 ,  F02M59/36

    CPC classification number: F02M45/06 ,  F02M41/06 ,  F02M59/366 ,  F02B2275/14 ,  Y02T10/123

    Abstract: To reduce the construction expense and the space required for a fuel injection pump for supplying a plurality of cylinders of an engine, in particular an internal combustion engine having externally supplied ignition, a fuel injection pump including a drive shaft with a single common cam drives a plurality of pump plungers. The supply quantity is controlled via a rotary slide and a subsequent common distributor delivers the fuel to the injection nozzles at the injection sites of the engine. The quantity of fuel injected is effected by an electrically controlled valve seated in a relief line that branches off downstream of the rotary slide, which by closure of the relief line determines the injection phase.

    Abstract translation: 为了减少用于供应发动机的多个气缸的燃料喷射泵所需的施工费用和空间，特别是具有外部提供的点火的内燃机，包括具有单个公共凸轮的驱动轴的燃料喷射泵驱动 多个泵柱塞。 供应量通过旋转滑块控制，随后的公共分配器将燃料输送到发动机的喷射位置处的喷嘴。 喷射的燃料量通过位于浮雕线上的电控阀来实现，该释放线从旋转滑块的下游分支，通过关闭浮雕线确定喷射阶段。

    Fuel injection system
    57.
    发明授权
    Fuel injection system 失效
    燃油喷射系统

    公开(公告)号：US4407252A

    公开(公告)日：1983-10-04

    申请号：US270639

    申请日：1981-06-04

    Applicant: Monte M. Dilliner

    Inventor： Monte M. Dilliner

    IPC: F02B1/04 ,  F02B3/06 ,  F02B75/12 ,  F02M53/06 ,  F02M57/00 ,  F02M59/06 ,  F02M59/30 ,  F02M61/18

    CPC classification number: F02M53/06 ,  F02M57/00 ,  F02M59/06 ,  F02M59/30 ,  F02B1/04 ,  F02B2075/125 ,  F02B3/06 ,  Y02T10/123

    Abstract: A fuel injection system for internal combustion engines includes an improved direct injection pump having a reciprocating metering plunger and an improved injector for atomizing and injecting the fuel into the combustion chamber. Respective moving parts of the pump and injector are supported in low friction seals free of contact with other parts and require no lubrication from the fuel pumped or from other sources so as to operate efficiently without galling on gasoline or diesel engines on any combustible fuel or any combination of such fuels. The pump includes a housing provided at one end with a fuel chamber of a predetermined capacity that has a single opening for receiving fuel from a source of supply through a valved fuel inlet and from which opening, fuel is dispensed to the injector through a valved fuel outlet line. The metering end of the plunger is reciprocated within such chamber at selected intervals by a control system which is adjustable to vary the length of stroke of the plunger and thereby determine the amount of fuel ejected from the chamber on each stroke for regulating the speed of the engine. The system includes a novel combined fuel injector and thermal heater or glow plug combined in a single housing for mounting in the standard spark plug port. Because this new pump requires no lubrication from the fluid pumped or other extraneous materials affecting such fluids, it is also useful for chemical fluids which must be kept free of contamination.

    Abstract translation: 用于内燃机的燃料喷射系统包括改进的直接喷射泵，其具有往复式计量柱塞和用于将燃料雾化和喷射到燃烧室中的改进喷射器。 泵和注射器的各个运动部件都支撑在与其他部件无接触的低摩擦密封件中，不需要从泵送或其他来源的燃油中润滑，以便有效运行，而不会对汽油或柴油发动机上任何可燃燃料或任何 这些燃料的组合。 泵包括一个壳体，其一端设有一个具有预定容量的燃料室，该燃料室具有一个开口，用于通过一个带阀的燃料入口从一个供应源接收燃料，燃料通过一个带阀的燃料分配给喷射器 出线。 柱塞的计量端在选定的间隔内以选定的间隔往复运动，该控制系统可调整以改变柱塞的行程长度，从而确定在每个行程上从腔室排出的燃料的量，以调节 发动机。 该系统包括一个新颖的组合燃料喷射器和热加热器或电热塞组合在单个壳体中，用于安装在标准火花塞端口中。 因为这种新型泵不需要对泵送的液体或其他影响这种流体的其他外来物质进行润滑，所以它也可用于必须保持无污染的化学液体。

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