-
公开(公告)号：US5765755A
公开(公告)日：1998-06-16
申请号：US787963
申请日：1997-01-23
申请人： Lester L. Peters , Julius P. Perr , A. S. Ghuman , Benjamin M. Yen , Chad L. Buchanan , Robert Samuel , Kevin L. Vogt , John T. Carroll, III , James E. Denton , David E. Schisler
发明人： Lester L. Peters , Julius P. Perr , A. S. Ghuman , Benjamin M. Yen , Chad L. Buchanan , Robert Samuel , Kevin L. Vogt , John T. Carroll, III , James E. Denton , David E. Schisler
CPC分类号： F02M61/18 , F02M45/10 , F02M61/042 , F02M61/168
摘要： An injection rate shaping nozzle assembly for a fuel injector is provided which includes a closed nozzle valve element and a rate shaping control device including an injection spill circuit for spilling a portion of the fuel to be injected to produce a predetermined time varying change in the flow rate of fuel injected into a combustion chamber. The spill circuit includes a spill passage integrally formed in the nozzle valve element. The rate shaping control device may include a spill accelerating chamber in formed in the nozzle valve element for creating a rapid increase in the spill flow rate. A spill circuit purge device is provided to remove fuel from the spill circuit and accelerating chamber between each of the injection events thereby ensuring an unimpeded, effective spill fuel flow during the next spill event. The purge device includes a purge passage formed of a predetermined size for restricting the flow of purge gas to ensure sufficient fuel removal from the injection spill circuit while avoiding excessive purge gas flow. The purge passage may include an annular clearance gap formed between the nozzle valve element and the nozzle housing wall, or alternatively, may include an orifice passage formed in the inner portion of the nozzle valve element. An improved method for forming a nozzle valve element having an axial center passage is also disclosed.
摘要翻译： 提供了一种用于燃料喷射器的喷射率成形喷嘴组件，其包括封闭的喷嘴阀元件和速率整形控制装置，该速率整形控制装置包括用于溢出待喷射的燃料的一部分以产生流量的预定时变变化的喷射泄漏电路 喷入燃烧室的燃料的速率。 泄漏回路包括一体形成在喷嘴阀元件中的溢流通路。 速率整形控制装置可以包括形成在喷嘴阀元件中的溢流加速室，用于产生溢流量的快速增加。 提供溢流回路吹扫装置以在每次喷射事件之间从泄漏回路和加速室中除去燃料，从而确保在下一个溢出事件期间不受阻碍地有效地溢出燃料流。 净化装置包括由预定尺寸形成的吹扫通道，用于限制净化气体的流动，以确保足够的燃料从喷射泄漏电路中移除，同时避免过多的吹扫气体流动。 净化通道可以包括形成在喷嘴阀元件和喷嘴壳体壁之间的环形间隙，或者可以包括形成在喷嘴阀元件的内部中的孔口通道。 还公开了一种用于形成具有轴向中心通道的喷嘴阀元件的改进方法。
-
公开(公告)号：US5979789A
公开(公告)日：1999-11-09
申请号：US978579
申请日：1997-11-26
申请人： Jeffrey J. Sullivan , John D. Crofts , Harry L. Wilson , George L. Muntean , Kevin L. Vogt , Mustahsen Gull , John L. Long
发明人： Jeffrey J. Sullivan , John D. Crofts , Harry L. Wilson , George L. Muntean , Kevin L. Vogt , Mustahsen Gull , John L. Long
CPC分类号： F02M57/023 , F02M59/366 , F02M59/466
摘要： 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.
摘要翻译： 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。
-
公开(公告)号：US5040727A
公开(公告)日：1991-08-20
申请号：US554465
申请日：1990-07-19
申请人： George L. Muntean , Gary L. Gant , C. Edward Morris, Jr. , David Bolis , Kevin L. Vogt , David E. Shultz
发明人： George L. Muntean , Gary L. Gant , C. Edward Morris, Jr. , David Bolis , Kevin L. Vogt , David E. Shultz
IPC分类号： F02M57/02
CPC分类号： F02M57/021
摘要： A unit fuel injector is disclosed to be used in a fuel injection system of an internal combustion engine wherein each unit injector is operated independently from one another and in synchronization with the internal combustion engine. Specifically, the unit injector in accordance with the present invention includes a reciprocating plunger assembly within the unit injector that controls fuel metering as well as fuel injection, and a valve device positioned between a minor diameter plunger section and a cup of the unit injector so as to permit fuel flow in one direction for fuel injection and to restrict flow of gases in the opposite direction. The valve device effectively reduces carbon build-up on the injector surfaces and increases injector longevity while reducing maintenance. Moreover, fuel metering is accurately controlled without substantial carboning flow losses.
摘要翻译： 公开了用于内燃机的燃料喷射系统中的单元燃料喷射器，其中每个单元喷射器彼此独立地并且与内燃机同步地操作。 具体而言，根据本发明的单元喷射器包括在单元喷射器内的往复式柱塞组件，其控制燃料计量以及燃料喷射，以及定位在小直径柱塞部分和单元喷射器杯之间的阀装置，以便 以允许燃料在一个方向上的流动用于燃料喷射并且限制气体沿相反方向的流动。 阀装置有效地减少了喷射器表面的碳积累并且在减少维护的同时增加了喷射器寿命。 此外，燃料计量被精确地控制，而没有实质的碳化流动损失。
-
公开(公告)号：US07690361B2
公开(公告)日：2010-04-06
申请号：US11905410
申请日：2007-09-28
CPC分类号： F02M59/20 , F02M59/366 , Y10T137/85986
摘要： A system and method for metering fuel is provided which includes a fuel supply line and a metering valve in fluid connection with the fuel supply line to control a flow of fuel through the fuel supply line. The valve is movable into a closed position to block a primary flow of fuel and create a leakage fuel flow in the fuel supply line downstream of the metering valve. The system also includes a venturi apparatus fluidly coupled to the fuel supply line upstream of the metering valve. The venturi apparatus is further coupled to the fuel supply line downstream of the metering valve to direct the leakage fuel flow out of the fuel supply line.
摘要翻译： 提供了一种用于计量燃料的系统和方法，其包括与燃料供应管线流体连接的燃料供应管线和计量阀，以控制通过燃料供应管线的燃料流。 阀门可移动到关闭位置以阻挡燃料的主流，并在计量阀下游的燃料供应管线中产生泄漏燃料流。 该系统还包括流体耦合到计量阀上游的燃料供应管线的文氏管装置。 文丘里装置进一步联接到计量阀下游的燃料供应管线，以将泄漏的燃料流引导出燃料供应管线。
-
公开(公告)号：US20090084355A1
公开(公告)日：2009-04-02
申请号：US11905410
申请日：2007-09-28
CPC分类号： F02M59/20 , F02M59/366 , Y10T137/85986
摘要： A system and method for metering fuel is provided which includes a fuel supply line and a metering valve in fluid connection with the fuel supply line to control a flow of fuel through the fuel supply line. The valve is movable into a closed position to block a primary flow of fuel and create a leakage fuel flow in the fuel supply line downstream of the metering valve. The system also includes a venturi apparatus fluidly coupled to the fuel supply line upstream of the metering valve. The venturi apparatus is further coupled to the fuel supply line downstream of the metering valve to direct the leakage fuel flow out of the fuel supply line.
摘要翻译： 提供了一种用于计量燃料的系统和方法，其包括与燃料供应管线流体连接的燃料供应管线和计量阀，以控制通过燃料供应管线的燃料流。 阀门可移动到关闭位置以阻挡燃料的主流，并在计量阀下游的燃料供应管线中产生泄漏燃料流。 该系统还包括流体耦合到计量阀上游的燃料供应管线的文氏管装置。 文丘里装置进一步联接到计量阀下游的燃料供应管线，以将泄漏的燃料流引导出燃料供应管线。
-
公开(公告)号：US5673853A
公开(公告)日：1997-10-07
申请号：US528220
申请日：1995-09-13
申请人： John D. Crofts , Mustahsen Gull , Edward B. Manring , Hisham K. Mozaffar , Jeffrey J. Sullivan , Kevin L. Vogt , Harry L. Wilson , George L. Muntean , Gary L. Gant , Daniel K. Hickey
发明人： John D. Crofts , Mustahsen Gull , Edward B. Manring , Hisham K. Mozaffar , Jeffrey J. Sullivan , Kevin L. Vogt , Harry L. Wilson , George L. Muntean , Gary L. Gant , Daniel K. Hickey
CPC分类号： F02M59/366 , F02M57/023 , F02M59/466
摘要： An electromagnetic fuel injection control valve positioned inside a fuel injector, i.e. a unit injector, for providing fast response and high pressure capability while minimizing the size and complexity of the injector. The control valve includes a valve housing having a supply inlet and fuel outlet, a center tube having a center passage and an annular valve seat, a control valve sleeve slidably mounted on the center tube and an actuator assembly having a coil spring, a stator and an armature. The control valve sleeve moves between an open position permitting fuel to flow between the supply inlet and the fuel outlet and a closed position which sealingly engages the annular valve seat for blocking the flow of fuel between the supply inlet and the fuel outlet. The coil spring biases the control valve sleeve in an open position and is positioned around the center tube. The stator is also axially positioned around the center tube and includes multiple poles. The armature connects to the control valve sleeve and reciprocates when solenoid is activated to allow for high pressure fuel injection into the combustion chamber of an internal combustion engine.
摘要翻译： 位于燃料喷射器内部的电磁燃料喷射控制阀，即单元喷射器，用于在使喷射器的尺寸和复杂度最小化的同时提供快速响应和高压能力。 控制阀包括具有供应入口和燃料出口的阀壳体，具有中心通道和环形阀座的中心管，可滑动地安装在中心管上的控制阀套管和具有螺旋弹簧，定子和 电枢。 控制阀套筒在允许燃料在供应入口和燃料出口之间流动的打开位置和密封地接合环形阀座的关闭位置之间移动，以阻断供应入口和燃料出口之间的燃料流动。 螺旋弹簧将控制阀套件偏压在打开位置并且围绕中心管定位。 定子也围绕中心管轴向定位并且包括多个极。 电枢连接到控制阀套筒，当螺线管被激活以允许高压燃料喷射到内燃机的燃烧室时往复运动。
-
公开(公告)号：US4813600A
公开(公告)日：1989-03-21
申请号：US109048
申请日：1987-10-16
CPC分类号： F02M61/161 , F02M53/04 , F02M55/002 , F02M57/021 , F02M61/168
摘要： An improved, simplified pressure/time dependent fuel injector assembly for injecting fuel intermittently into a combustion chamber of an internal combustion engine. The injector assembly includes a unitary or single-piece injector body which has at least one groove-like channel on the exterior surface thereof. The channel is closed and sealed by a sleeve which is press-fit about that portion of the injector body on which the channel lies. For reciprocation within the injector body, there is provided an injector-plunger assembly which includes a top stop mechanism for adjustably setting the distance traveled by the plunger assembly during the reciprocatory movement thereof.
摘要翻译： 一种用于将燃料间歇地喷射到内燃机的燃烧室中的改进的，简化的压力/时间依赖性燃料喷射器组件。 喷射器组件包括在其外表面上具有至少一个凹槽状通道的整体或单件式喷射器主体。 通道被封闭并被套筒密封，套管围绕通道所在的喷射器主体的该部分压配合。 为了在喷射器主体内往复运动，提供了一种喷射器 - 柱塞组件，其包括顶部止动机构，用于可调节地设定柱塞组件在往复运动期间行进的距离。
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.038 秒)