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    • 2. 发明授权
    • Fuel injector with internal component load protection
    • 具有内部组件负载保护的燃油喷射器
    • US5979789A
    • 1999-11-09
    • US978579
    • 1997-11-26
    • Jeffrey J. SullivanJohn D. CroftsHarry L. WilsonGeorge L. MunteanKevin L. VogtMustahsen GullJohn L. Long
    • Jeffrey J. SullivanJohn D. CroftsHarry L. WilsonGeorge L. MunteanKevin L. VogtMustahsen GullJohn L. Long
    • F02M57/02F02M59/36F02M59/46F02M47/02
    • F02M57/023F02M59/366F02M59/466
    • A fuel injector for effectively preventing excessive loading of a component mounted internal to the injector is provided which includes a one-piece retainer having first and second connector portions for permitting two independent loads to be applied to different internal components of the injector. The second connector portion includes threads for engaging a nozzle assembly to impart a compressive force on the nozzle assembly. The first connector portion also includes threads for engaging an outer barrel for placing a first compressive load on a load sensitive internal component, such as a center tube of an injection control valve. In this manner, the second compressive force can be set at a minimum level independent from the first compressive force to permit the size of the center tube to be minimized thereby reducing the overall size of the injector. Also, a locking device including a locking ring for engaging the outer barrel ensures a secure connection between the second connector portion and the outer barrel to prevent shifting at the connection during operation of the injector as the load at the connection transitions from a tension load to a compression load thereby ensuring only a minimum load on the center tube. A novel sealing assembly is also provided to permit effective sealing between the end of the center tube and the outer barrel regardless of tolerance variations while providing simplified valve stroke setting capability.
    • 提供了一种用于有效地防止在喷射器内部安装的部件的过度加载的燃料喷射器,其包括具有第一和第二连接器部分的一体式保持器,用于允许将两个独立的载荷施加到喷射器的不同内部部件。 第二连接器部分包括用于接合喷嘴组件以在喷嘴组件上施加压缩力的螺纹。 第一连接器部分还包括用于接合外筒的螺纹,用于将第一压缩载荷放置在负载敏感内部部件上,例如喷射控制阀的中心管。 以这种方式,可以将第二压缩力设定在独立于第一压缩力的最小水平,以允许中心管的尺寸最小化,从而减小喷射器的总体尺寸。 此外,包括用于接合外筒的锁定环的锁定装置确保第二连接器部分和外筒之间的牢固连接,以防止在连接处的负载从张力负载转变到喷射器时在连接处的移动 压缩负载,从而确保仅在中心管上的最小负载。 还提供了一种新颖的密封组件,以允许中心管的端部与外筒之间的有效密封,而不管公差变化,同时提供简化的阀冲程设置能力。
    • 4. 发明授权
    • Fuel injector
    • 喷油器
    • US4149506A
    • 1979-04-17
    • US626722
    • 1975-10-29
    • George L. MunteanHarry L. WilsonJulius P. Perr
    • George L. MunteanHarry L. WilsonJulius P. Perr
    • F02M57/02F02M39/00F02B3/00
    • F02M57/021F02B2275/14Y02T10/123
    • This disclosure deals with a fuel injector for an internal combustion engine. The injector includes an injector body having a fuel metering chamber formed therein which receives fuel from a fuel supply. A plunger is movable into the chamber in an injection stroke to force fuel from the chamber and out of the injector through spray holes. A valve member is mounted in the path of fuel flow from the chamber to the spray holes, the valve member being movable between first and second positions. In the first position, the valve member seals the path and prevents air in the combustion chamber from mixing with the fuel being metered into the metering chamber, and in the second position the valve member closes the spray holes to terminate injection. During an injection stroke, the plunger moves the valve member from the first position toward the second position, and fuel injection takes place while the valve member is intermediate the first and second positions. The valve member is also subjected to hydraulic forces at the end of the injection stroke, which move the valve member into the second position in order to abruptly terminate injection.
    • 本公开涉及用于内燃机的燃料喷射器。 喷射器包括具有形成在其中的燃料计量室的喷射器主体,其从燃料供应接收燃料。 柱塞可以在注射冲程中移动到腔室中,以迫使来自腔室的燃料并且通过喷射孔离开喷射器。 阀构件安装在从腔室到喷射孔的燃料流动路径中,阀构件可在第一和第二位置之间移动。 在第一位置,阀构件密封路径并防止燃烧室中的空气与计量的计量腔中的燃料混合,并且在第二位置,阀构件关闭喷射孔以终止喷射。 在注射行程期间,柱塞将阀构件从第一位置移动到第二位置,并且在阀构件处于第一和第二位置的中间时进行燃料喷射。 阀构件也在喷射行程结束时受到液压力,从而将阀构件移动到第二位置以突然终止喷射。
    • 5. 发明授权
    • Stepped rotation fuel distribution valve
    • 步进式旋转燃油分配阀
    • US5630398A
    • 1997-05-20
    • US658574
    • 1996-06-05
    • Gary L. GantGeorge L. MunteanHarry L. WilsonJohn R. YoungbloodMark S. Cavanagh
    • Gary L. GantGeorge L. MunteanHarry L. WilsonJohn R. YoungbloodMark S. Cavanagh
    • F02M41/06F02M59/44F02M41/00F16K11/076
    • F02M41/06F02M41/063F02M59/44Y10T137/86501
    • A stepped rotation fuel distribution valve for receiving and conducting metered, pressurized fuel pulses to the combustion cylinders of a diesel engine is provided. The valve includes a fuel distribution shaft rotatably mounted in a valve housing. The shaft includes a fuel discharge port that is sequentially registrable with fuel distributing passages in the housing that ultimately lead to the diesel fuel injectors associated with the combustion cylinders of the engine. A drive mechanism, which may include a stepper motor, intermittently rotates the fuel distributor shaft so that the shaft discharge port dwells in registration with one of the fuel distributing passages at the time a pressurized pulse of fuel is discharged through the shaft discharge port. The drive mechanism may also include either a set of timing gears or a spring coupling to achieve the desired intermittent rotation. In all cases, the intermittent rotation of the fuel distribution shaft prevents the shaft from rotating at a time when the discharge of a highly pressurized fuel pulse applies a high side load to the shaft which in turn can generate high frictional forces between the fuel distribution shaft and the surrounding housing.
    • 提供了一种用于接收和传导计量的加压燃料脉冲到柴油发动机的燃烧气缸的阶梯式旋转燃料分配阀。 阀包括可旋转地安装在阀壳体中的燃料分配轴。 该轴包括燃料排放口,该燃料排出口可与壳体中的燃料分配通道顺序地分配,其最终导致与发动机的燃烧气缸相关联的柴油喷射器。 可以包括步进电机的驱动机构间歇地旋转燃料分配器轴,使得在通过轴排出口排出加压的燃料脉冲时,轴排出口与燃料分配通道中的一个对准。 驱动机构还可以包括一组定时齿轮或弹簧联接器以实现期望的间歇旋转。 在所有情况下,燃料分配轴的间歇旋转防止轴在高压燃料脉冲的排放向轴施加高侧负荷时旋转,而轴可以在燃料分配轴之间产生高摩擦力 和周围的房屋。
    • 6. 发明授权
    • Lubrication oil controlled unit injector
    • 润滑油控制单元喷油器
    • US5335852A
    • 1994-08-09
    • US10313
    • 1993-01-28
    • George L. MunteanHarry L. WilsonGary L. Gant
    • George L. MunteanHarry L. WilsonGary L. Gant
    • F02M57/02F02M59/30F02M59/32F02M63/00F02M47/02
    • F02M63/0001F02M57/024F02M59/30F02M59/32
    • A unit fuel injector adapted for periodic injection of fuel into a combustion chamber of an engine at variable times from cycle to cycle under the control of the engine lubrication fluid is provided, comprising an injector body containing an injector cavity and a discharge orifice communicating with one end of the injector cavity to discharge fuel into the combustion chamber, a lubrication fluid timing circuit and a fuel metering circuit separate from the lubrication fluid timing circuit. A lubrication fluid link positioned in the lubrication fluid timing circuit within the injector cavity has a variable effective length which is varied by the operation of a control valve positioned within the lubrication timing circuit to vary the timing of injection. The control valve is operated to control the flow of lubrication fluid in the lubrication fluid timing circuit to control both the timing of injection and the metering of fuel on a cycle by cycle basis. The control valve is operable to be placed in a first position in which lubrication fluid may flow through the lubrication fluid timing circuit into the timing chamber and fuel flow from the fuel metering circuit into the metering chamber is shut off and a second position in which lubrication fluid flow into the timing chamber is shut off. Lubrication fluid is maintained at a higher pressure than the fuel pressure when the control valve is in the first position to stop the movement of a metering plunger to define the metered quantity of fuel thereby avoiding the need for a bias spring. By using lubrication fluid as timing fluid in a timing circuit separate from the fuel metering circuit, the amount of fuel required by the injector and the amount of heated fuel returned to the fuel supply tank is minimized.
    • 提供了一种单元燃料喷射器,其适于在发动机润滑流体的控制下,在循环到循环的可变时间周期性地将燃料喷射到发动机的燃烧室中,所述单元燃料喷射器包括喷射器主体,所述喷射器主体包含喷射器腔和与一个 喷射器腔的端部以将燃料排放到燃烧室中,润滑流体定时电路和与润滑流体定时电路分离的燃料计量电路。 位于喷射器腔内的润滑流体定时电路中的润滑流体连接件具有可变的有效长度,该有效长度通过位于润滑定时电路内的控制阀的操作而改变,以改变喷射时间。 控制阀被操作以控制润滑流体定时电路中的润滑流体的流动,以逐周期地控制喷射时间和燃料计量。 控制阀可操作以被放置在第一位置,在该第一位置,润滑流体可以通过润滑流体定时回路流入定时室,并且从燃料计量回路进入计量室的燃料流被切断,而第二位置中润滑 流入定时室的流体被切断。 当控制阀处于第一位置时,润滑流体被保持在比燃料压力更高的压力,以停止计量柱塞的运动以限定计量的燃料,从而避免了对偏置弹簧的需要。 通过使用润滑流体作为与燃料计量回路分开的定时回路中的定时流体,喷射器所需的燃料量和返回到燃料供应罐的加热燃料的量被最小化。
    • 7. 发明授权
    • Solenoid operated pump-line-nozzle fuel injection system and inline pump
therefor
    • 电磁式泵线喷嘴燃油喷射系统及其在线泵
    • US5377636A
    • 1995-01-03
    • US102830
    • 1993-08-06
    • David M. RixHarry L. WilsonRodney C. WilsonGeorge L. Muntean
    • David M. RixHarry L. WilsonRodney C. WilsonGeorge L. Muntean
    • F02M57/02F02M59/30F02M37/04F02M7/00
    • F02M59/30F02M57/024
    • A pump-line-nozzle fuel injection system in which a supply pump is coupled to a high pressure pump having a plurality of pumping cylinders, each of which has a cam-driven timing plunger and a floating metering plunger. During the retraction stroke, flow to a timing chamber formed between the pistons is blocked by a solenoid valve while the fuel passes into a metering chamber, at the discharge side of the pump, which is closed relative to the high pressure delivery line by a delivery valve. Once the proper quantity of fuel has been metered, the solenoid valve opens allowing fuel to flow into the metering chamber, balancing the pressure on opposite sides of the metering piston, so as to prevent the metering plunger from retracting further as the timing plunger continues to retract. During the compression stroke, at the appropriate time for commencement of injection, the solenoid valve recloses creating a hydraulic link between the metering and timing plungers, so that the fuel is pressurized. Once the fuel is sufficiently pressurized, the delivery valve opens and the fuel is delivered to the injector via the high pressure delivery line. Each pumping cylinder delivers fuel to a respective associated injector for each cylinder of the engine. Compressibility of the fuel and the length of the high pressure delivery line is compensated for by an electronic control module and by making the timing plunger of a larger diameter than the metering plunger so as to obtain a fast pumping rate.
    • 一种泵线喷嘴燃料喷射系统,其中供应泵联接到具有多个泵送缸的高压泵,每个泵缸具有凸轮驱动的定时柱塞和浮动计量柱塞。 在回缩行程期间,形成在活塞之间的定时室的流动被电磁阀阻挡,同时燃料进入计量室,在泵的排放侧,其通过输送相对于高压输送管线封闭 阀。 一旦已经计量了适量的燃料,电磁阀打开,允许燃料流入计量室,平衡计量活塞的相对侧上的压力,从而防止计量柱塞进一步收回,因为定时柱塞继续 缩回 在压缩冲程期间,在适当的开始喷射的时候,电磁阀重新关闭,在计量和定时柱塞之间产生液压连杆,使得燃料被加压。 一旦燃料充分加压,则输送阀打开,并且燃料经由高压输送管线输送到喷射器。 每个泵送缸将燃料输送到发动机的每个气缸的相应的相关联的喷射器。 燃料的压缩性和高压输送管线的长度由电子控制模块补偿,并且使定时柱塞的直径大于计量柱塞,从而获得快速的泵送速率。
    • 8. 发明授权
    • Apparatus and method for averting the effects of seal failure in an I.C.
engine fuel supply system
    • 用于避免在I.C.中的密封失效的影响的装置和方法 发动机燃油供应系统
    • US4187817A
    • 1980-02-12
    • US948872
    • 1978-10-05
    • Harry L. WilsonDavid E. ShultzGeorge L. Muntean
    • Harry L. WilsonDavid E. ShultzGeorge L. Muntean
    • F02D1/06F02D7/00F02M59/20F02M39/00F02B77/00F02D1/04F16K31/365
    • F02M59/205F02D1/065F02D7/002Y10T137/5762
    • An air fuel ratio control for an I.C. engine fuel supply system is disclosed including a diaphragm operator for a fuel flow modulating valve responsive to engine intake manifold pressure as sensed through an air line connecting the diaphragm operator with the intake manifold and a drain line for returning to the engine fuel tank all fuel which may leak into the diaphragm operator due to seal rupture. The disclosed system further including a specially designed flow restrictor in the air line to prevent engine fuel tank pressurization and reverse fuel flow into the engine's intake manifold should the diaphragm operator rupture. The flow restrictor includes a control orifice which is sufficiently large to allow proper control by the diaphragm operator but yet not so large as to allow fuel tank pressurization should the diaphram rupture. In one embodiment the flow restrictor includes a check valve designed to close only upon improper fuel flow from the air fuel control to the intake manifold. To avoid manufacturing tolerances, the check valve may be calibrated to close at precisely the proper miminal flow rate.
    • 空气燃料比控制 公开了一种发动机燃料供应系统,包括用于燃料流量调节阀的隔膜操作器,其响应于通过将隔膜操作器与进气歧管连接的空气管线和用于将发动机燃料箱返回到发动机燃料箱的所有燃料来检测的发动机进气歧管压力 由于密封破裂,可能会泄漏到隔膜操作器中。 所公开的系统还包括在空气管线中专门设计的限流器,以防止发动机燃料箱加压,并且如果隔膜操作器破裂,则将燃料反向流入发动机的进气歧管。 流量限制器包括一个足够大的控制孔口,以便能够通过隔膜操作器进行适当的控制,但不会如此大,以致允许燃油箱在隔膜破裂时加压。 在一个实施例中,限流器包括止回阀,其设计成仅在从空气燃料控制到进气歧管的不当燃料流动时才闭合。 为了避免制造公差,可以校准止回阀以精确地以适当的模拟流速关闭。
    • 9. 发明授权
    • Fuel injector for internal combustion engine
    • 内燃机燃油喷射器
    • US4369750A
    • 1983-01-25
    • US105150
    • 1979-12-19
    • George MunteanHarry L. WilsonGary L. Gant
    • George MunteanHarry L. WilsonGary L. Gant
    • F02M57/02F02M59/38F02M59/44F02M59/42
    • F02M59/38F02M57/021F02M59/44
    • This disclosure relates to a fuel injector for an internal combustion engine. The injector comprises an injector body forming a plunger bore, and a plunger reciprocably mounted in the bore. The plunger reciprocates between a retracted position and a forward position, and a fuel receiving or metering chamber is formed at the forward end of the bore when the plunger is in the retracted position. A fuel supply passage is formed in the body and conducts fuel to the chamber when the plunger is in the retracted position. When the plunger is moved forwardly in an injection stroke, it ejects the fuel from the chamber through spray holes formed in the body. The injector further includes means for selectively opening or closing the supply passage when the injector plunger is in the retracted position. Such means includes a land formed on the plunger adjacent the supply passage, a groove formed in the land, and means for rotating the plunger between two angular positions. When the plunger is retracted and the plunger is in one angular position, the groove connects the supply passage to the chamber and in the other position the groove is displaced from the passage and the land closes the passage.
    • 本公开涉及一种用于内燃机的燃料喷射器。 喷射器包括形成柱塞孔的喷射器主体和可往复运动地安装在孔中的柱塞。 柱塞在缩回位置和向前位置之间往复运动,并且当柱塞处于缩回位置时,在孔的前端处形成燃料接收或计量室。 燃料供给通道形成在主体中并且当柱塞处于缩回位置时将燃料传导到腔室。 当柱塞在注射行程中向前移动时,其通过在体内形成的喷孔将燃料从腔室喷出。 喷射器还包括当喷射器柱塞处于缩回位置时选择性地打开或关闭供给通道的装置。 这种装置包括形成在柱塞上的与供给通道相邻的台面,形成在槽脊中的槽,以及用于在两个角位置之间旋转柱塞的装置。 当柱塞缩回并且柱塞处于一个角度位置时,凹槽将供应通道连接到室,并且在另一位置,凹槽从通道移位,并且平台关闭通道。