Cyclic pressurization including plural pressurization units interconnected for energy storage and recovery
    2.
    发明授权
    Cyclic pressurization including plural pressurization units interconnected for energy storage and recovery 有权
    循环加压,包括互连用于能量储存和回收的多个加压单元

    公开(公告)号:US06405709B1

    公开(公告)日:2002-06-18

    申请号:US09547713

    申请日:2000-04-11

    IPC分类号: F02M4100

    摘要: A fuel injection system is disclosed for an internal combustion engine that has multiple combustion chambers and a camshaft which cyclically imparts pressurization energy to and recovers pressurization energy from fuel being supplied to the engine. The fuel injection system includes a plurality of unit injectors, a camshaft linkage which simultaneously reciprocates pressurizing plungers of a set of at least two unit injectors and an interconnecting line which allows selective fluid interconnection between fuel pressurization chambers formed within the unit injectors. The interconnection line allows fluid linkage of the volume of fuel which is simultaneously pressurized and depressurized within the interconnected fuel pressurization chambers of a first set of unit injectors.

    摘要翻译: 公开了一种用于内燃机的燃料喷射系统,所述内燃机具有多个燃烧室和凸轮轴,所述燃烧室和凸轮轴循环地将加压能量递送给从发动机供应的燃料中并且从其回收加压能量。 燃料喷射系统包括多个单元喷射器,凸轮轴联动装置,其同时往复运动一组至少两个单元喷射器的加压柱塞,以及允许在单元喷射器内形成的燃料加压室之间的选择性流体互连的互连线。 互连线允许在第一组单元喷射器的互连燃料加压室内同时加压和减压的燃料体积的流体连接。

    Needle controlled fuel system with cyclic pressure generation
    4.
    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

    摘要: 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.

    摘要翻译: 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。

    Needle controlled fuel system with cyclic pressure generation
    5.
    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:US5676114A

    公开(公告)日:1997-10-14

    申请号:US686491

    申请日:1996-07-25

    摘要: The improved needle controlled common rail fuel system of the present invention includes split common rails serving respective sets of injectors and a respective high pressure pump associated with each rail. The high pressure pumps reciprocate 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 an injection control valve and a needle control device 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. The system also includes an improved fuel injector design including an intensification plunger assembly. In addition, a pressure energy recuperation means is provided which utilizes the pressure of the fuel in the common rail and the fuel injectors as a result of the pressure energy stored in the fuel to assist in retraction of the high pressure pump plunger during each pumping event. In addition, a wiring connection harness is provided which permits the connection of an electrically operated fuel delivery device, i.e. injector, to an electrical source simultaneously with the mounting of the fuel delivery device on the engine.

    摘要翻译: 本发明的改进的针控共轨燃料系统包括用于各组喷射器的分开的公共轨道和与每个轨道相关联的相应的高压泵。 高压泵在柱塞的推进行程期间循环地循环地在共轨中产生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。 燃料喷射器包括喷射控制阀和针控制装置,用于在泵送事件期间通过控制排出的燃料流来产生喷射事件,以便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。 该系统还包括改进的燃料喷射器设计,包括增强柱塞组件。 此外,提供了一种压力能量回收装置,其利用储存在燃料中的压力能量在共轨和燃料喷射器中的燃料的压力,以帮助每次泵送事件期间高压泵柱塞的收回 。 此外,提供了一种布线连接线束,其允许电动燃料输送装置即喷射器连接到电源,同时将燃料输送装置安装在发动机上。

    APPARATUS, SYSTEM, AND METHOD FOR USING A FRACTION OF ENGINE EXHAUST TO DELIVER A DOSANT
    7.
    发明申请
    APPARATUS, SYSTEM, AND METHOD FOR USING A FRACTION OF ENGINE EXHAUST TO DELIVER A DOSANT 有权
    用于使用发动机排放物分配剂的装置,系统和方法

    公开(公告)号:US20090044526A1

    公开(公告)日:2009-02-19

    申请号:US11838081

    申请日:2007-08-13

    IPC分类号: F01N7/00

    摘要: An apparatus, system, and method are disclosed for delivering a dosant with engine exhaust. The apparatus includes a flow-rate regulator disposed downstream from an engine exhaust manifold that operates to control a fraction of exhaust from the engine exhaust manifold. The apparatus also includes a doser disposed downstream of the flow-rate regulator that provisions a supply of dosant to the path of the controlled fraction of exhaust, which atomizes, vaporizes, disperses, mixes with, and/or delivers the dosant.

    摘要翻译: 公开了用于递送具有发动机排气的剂量的装置,系统和方法。 该装置包括设置在发动机排气歧管下游的流量调节器,该发动机排气歧管用于控制来自发动机排气歧管的排气的一部分。 该设备还包括设置在流量调节器下游的配量器,该配量器将排放剂的供应量提供给排放物的受控部分的路径,该排放物的雾化,蒸发,分散,混合和/或递送剂量。

    Variable injection timing and injection pressure control arrangement
    8.
    发明授权
    Variable injection timing and injection pressure control arrangement 失效
    可变喷射正时和喷射压力控制装置

    公开(公告)号:US5713335A

    公开(公告)日:1998-02-03

    申请号:US659619

    申请日:1996-06-06

    摘要: In accordance with preferred embodiments of the invention a timing adjustment device includes a cam follower that is engaged between an overhead cam and an injector rocker arm, and is mounted on a rotatable eccentric shaft. The geometry of the eccentric shaft and cam follower is designed so that, as timing is varied by rotation of the eccentric shaft, no change is produced in the vertical height of the rocker arm when the cam shaft is on the outer base circle and the injector is bottomed, in order to assure that the "mechanical crush" of the PT type injector is constant despite changes in timing. In a first application of the timing arrangement, it is used together with a simple injector, which does not utilize a multi-plunger arrangement to form a hydraulic link, to achieve lower parasitic losses. To obtain independent control over injection pressure and timing, a fuel injector in which a hydraulic link is formed between plungers of a multi-plunger arrangement is used with the timing arrangement in order to allow the injection pressure to be maintained constant over a wide range of engine speeds without interfering with engine timing.

    摘要翻译: 根据本发明的优选实施例,定时调节装置包括凸轮从动件,其接合在顶置凸轮和喷射器摇臂之间,并安装在可旋转的偏心轴上。 偏心轴和凸轮从动件的几何形状被设计成使得当定时通过偏心轴的旋转而变化时,当凸轮轴在外基圆上时,在摇臂的垂直高度上不产生变化,并且喷射器 是为了确保PT型喷射器的“机械挤压”在时间上有变化时是恒定的。 在定时装置的第一应用中,它与简单的喷射器一起使用,其不利用多柱塞装置来形成液压连杆,以实现更低的寄生损耗。 为了获得对喷射压力和时间的独立控制,在定时装置中使用其中在多柱塞装置的柱塞之间形成液压连杆的燃料喷射器,以便允许喷射压力在宽范围内保持恒定 发动机转速,而不会干扰发动机定时。

    Clamping load distributor for a fuel injector
    9.
    发明授权
    Clamping load distributor for a fuel injector 失效
    用于燃油喷射器的夹紧负载分配器

    公开(公告)号:US5697345A

    公开(公告)日:1997-12-16

    申请号:US364698

    申请日:1994-12-28

    IPC分类号: F02M61/14 F02M55/02

    CPC分类号: F02M61/14 F02F2007/0063

    摘要: A clamping load distributor disposed and connecting between a fuel injector body and a clamping device. The clamping load distributor functions as an intermediary to transmit the static clamping load from the clamping device to the fuel injector body. The clamping load distributor includes a cylindrically shaped main body having a bore extending therethrough between an upper surface and a lower surface. The upper surface of the main body being adapted for receiving the clamping load from a clamping device. The lower surface having at least one portion normally contacting the deck of the fuel injector body. The clamping device engages the upper surface of the clamping load distributor at a position axially aligned with a portion of the lower surface that normally does not contact the fuel injector body. The geometric relationship of the clamping load distributor functions to more uniformly distribute the static clamping load across the fuel injector body. By spreading the static clamping load more uniformly across the fuel injector body there is a corresponding reduction in timing plunger scuffing, thereby eliminating or minimizing the occurrence of timing plunger seizure.

    摘要翻译: 设置并连接在燃料喷射器主体和夹紧装置之间的夹紧负载分配器。 夹紧负载分配器用作将夹紧装置的静态夹紧载荷传递到燃料喷射器主体的中间件。 夹紧负载分配器包括圆柱形主体,其具有在上表面和下表面之间延伸通过的孔。 主体的上表面适于从夹紧装置接收夹紧载荷。 下表面具有通常接触燃料喷射器主体的甲板的至少一个部分。 夹紧装置在与通常不接触燃料喷射器主体的下表面的一部分轴向对准的位置处接合夹紧负载分配器的上表面。 夹紧负载分配器的几何关系用于将静态夹紧载荷更均匀地分布在燃料喷射器主体上。 通过将静态夹紧负载更均匀地分布在燃料喷射器主体上,柱塞磨损定时相应地减少,从而消除或最小化定时柱塞咬合的发生。

    Effervescent injector for diesel engines
    10.
    发明授权
    Effervescent injector for diesel engines 失效
    用于柴油发动机的泡腾喷射器

    公开(公告)号:US5884611A

    公开(公告)日:1999-03-23

    申请号:US949755

    申请日:1997-10-14

    摘要: An effervescent fuel injector, particularly one suitable for diesel and direct injection engine applications, which is capable of injecting, particularly intermittently, an atomized fuel spray with droplets of a size in the range of 5-6 micron SMD without requiring high pressures is achieved in a preferred embodiment effervescent fuel injector of the valve covered orifice (VCO) type having primary and secondary nozzle valves which remain closed when the control valve is not actuated, but which open one or two sets of nozzle orifices depending on fuel volume requirements. A three-way, on-off control valve is used to trigger commencement of the supply of gas via a control valve simultaneously with opening of at least some of the nozzle orifices. Gas and fuel are mixed in a mixing chamber located upstream of the nozzle valves in a manner creating a gas-fuel aeration, and as the aeration is sprayed from the nozzle orifices, the gas expands rapidly breaking the fuel into fine droplets.

    摘要翻译: 一种泡腾式燃料喷射器,特别适用于柴油和直接喷射发动机应用的喷嘴,其能够特别间歇地喷射尺寸在5-6微米SMD范围内的液滴的雾化燃料喷雾而不需要高压,实现在 具有主喷嘴阀和辅助喷嘴阀的阀盖孔(VCO)的优选实施例泡腾式燃料喷射器,当控制阀未被致动时保持关闭,而根据燃料量要求打开一组或​​两组喷嘴孔。 三通开关控制阀用于通过控制阀同时打开至少一些喷嘴孔来启动气体的供给。 气体和燃料以形成气体燃料通气的方式在喷嘴阀的上游的混合室中混合,并且当喷嘴从喷嘴孔喷射时,气体迅速膨胀,将燃料分解成细小液滴。