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    • 3. 发明授权
    • Effervescent injector for diesel engines
    • 用于柴油发动机的泡腾喷射器
    • US5884611A
    • 1999-03-23
    • US949755
    • 1997-10-14
    • Yul J. TarrLaszlo D. TikkWayne A. EckerleLester L. Peters
    • Yul J. TarrLaszlo D. TikkWayne A. EckerleLester L. Peters
    • F02B3/06F02M45/08F02M47/02F02M67/12F02M23/00
    • F02M47/027F02M21/0248F02M43/04F02M45/086F02M67/12F02B3/06
    • 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.
    • 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。
    • 5. 发明授权
    • Needle controlled fuel system with cyclic pressure generation
    • 具有循环压力发生的针控制燃料系统
    • US5819704A
    • 1998-10-13
    • US903310
    • 1997-07-30
    • Yul J. TarrJohn D. CroftsJohn T. Carroll, IIILaszlo D. Tikk
    • Yul J. TarrJohn D. CroftsJohn T. Carroll, IIILaszlo D. Tikk
    • F02M47/00F02D41/00F02D41/20F02D41/38F02D41/40F02M47/02F02M51/00F02M55/00F02M55/02F02M57/02F02M59/06F02M59/36F02M61/14F02M63/00F02M63/02F02M7/00
    • F02M51/005F02M47/027F02M55/005F02M57/02F02M57/025F02M57/026F02M59/06F02M59/366F02M61/14F02M63/0225F02D41/3809F02M2200/21F02M2547/003
    • 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.
    • 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。
    • 8. 发明授权
    • Clamping load distributor for a fuel injector
    • 用于燃油喷射器的夹紧负载分配器
    • US5697345A
    • 1997-12-16
    • US364698
    • 1994-12-28
    • David P. GenterYul J. TarrDavid W. PadgettLaszlo D. Tikk
    • David P. GenterYul J. TarrDavid W. PadgettLaszlo D. Tikk
    • F02M61/14F02M55/02
    • F02M61/14F02F2007/0063
    • 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.
    • 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。
    • 9. 发明授权
    • Needle controlled fuel system with cyclic pressure generation
    • 具有循环压力发生的针控制燃料系统
    • US5676114A
    • 1997-10-14
    • US686491
    • 1996-07-25
    • Yul J. TarrJohn D. CroftsJohn T. Carroll, IIILaszlo D. Tikk
    • Yul J. TarrJohn D. CroftsJohn T. Carroll, IIILaszlo D. Tikk
    • F02M47/00F02D41/00F02D41/20F02D41/38F02D41/40F02M47/02F02M51/00F02M55/00F02M55/02F02M57/02F02M59/06F02M59/36F02M61/14F02M63/00F02M63/02F02M41/00F02M7/00
    • F02M57/026F02M47/027F02M51/005F02M55/005F02M57/02F02M57/025F02M59/06F02M59/366F02M61/14F02M63/0225F02D41/3809F02M2200/21F02M2547/003
    • 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.
    • 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。
    • 10. 发明授权
    • Open nozzle fuel injector having drive train wear compensation
    • 打开喷嘴燃油喷射器,具有传动系磨损补偿
    • US5611317A
    • 1997-03-18
    • US513201
    • 1995-08-09
    • Lester L. PetersJulius P. PerrYul J. Tarr
    • Lester L. PetersJulius P. PerrYul J. Tarr
    • F02M57/02F02M59/10F02M37/04
    • F02M57/024F02M57/021F02M59/102
    • A cam operated open nozzle fuel injector is provided comprising a reciprocating plunger assembly including an outer plunger, an inner plunger and a variable volume timing chamber located between the plungers. A hold down force generating means includes a cam having a hold down cam or ramp portion for maintaining the inner plunger in an innermost position against the inner end of the injector body with a sufficient hold down force during each hold down period throughout injector operation independently of injector train wear. The hold down cam portion operates to move the outer plunger inwardly towards the inner plunger throughout a substantial portion of the hold down period. The hold down cam portion functions to compensate for fuel drainage from the timing chamber so as to maintain a predetermined pressure in the timing chamber corresponding to a desired hold down force. The hold down force generating device is capable of maintaining timing fluid in the timing chamber throughout the hold down period and may include a timing chamber drain regulating valve for controlling the drainage of fluid from the timing chamber.
    • 提供了一种凸轮操作的开放喷嘴燃料喷射器,其包括往复式柱塞组件,其包括位于柱塞之间的外柱塞,内柱塞和可变容积定时室。 压紧力产生装置包括具有压紧凸轮或斜面部分的凸轮,用于在每个压紧操作期间以足够的压紧力将内柱塞保持在最靠近喷射器主体的内端的位置,同时具有足够的压紧力, 喷油器列车磨损。 压紧凸轮部分操作以在整个保持期的大部分期间将外柱塞向内移动到内柱塞。 压紧凸轮部分用于补偿来自定时室的燃料排放,以便在对应于期望的压下力的定时室中保持预定的压力。 压紧力产生装置能够在整个压紧时段内保持定时室中的定时流体,并且可以包括用于控制来自定时室的流体排放的定时室排水调节阀。