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1.发明授权Dual-function clamping assembly adapted for a hydraulically-actuated fuel injector 失效适用于液压致动燃油喷射器的双功能夹紧组件
公开(公告)号：US5499612A
公开(公告)日：1996-03-19
申请号：US316758
申请日：1994-10-03
CPC分类号： F02M63/00 , F02M39/00 , F02M57/025 , F02M61/14 , F02B2275/14 , F02B3/06 , Y02T10/123
摘要： A dual-function clamping assembly adapted for i) connecting a hydraulically-actuated injector to an engine member, such as a cylinder head, and ii) for sealedly connecting an actuating fluid supply passage between the engine member and an actuating fluid inlet passage of the injector located at one end portion of the injector. The clamp assembly is applicable, for example, for angled-body injectors having the actuator and valve assembly positioned offset from and angled relative to the main longitudinal axis of the injector body.
摘要翻译： 一种双功能夹紧组件，其适用于i）将液压致动的喷射器连接到诸如气缸盖的发动机构件，以及ii）用于将发动机构件和所述发动机构件的致动流体入口通道之间的致动流体供应通道密封连接 喷射器位于喷射器的一个端部。 夹具组件例如适用于具有致动器和阀组件的角度体喷射器，该致动器和阀组件相对于喷射器主体的主纵向轴线偏置并成角度。
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公开(公告)号：US5901686A
公开(公告)日：1999-05-11
申请号：US963315
申请日：1997-11-03
CPC分类号： F16J15/006 , F02M57/02 , F02M59/442 , F02M61/16
摘要： A cyclic high pressure fluid seal for a fuel injector includes an injector body that defines a cyclic high pressure space connected to a low pressure space by a bore. A member with a pressure face end and a side surface is mounted to reciprocate in the bore between a retracted position and an advanced position. An O-ring is positioned in contact with the side surface of the member and the injector body within the bore. A portion of the member and the bore define a pressure accumulation volume positioned between the O-ring and the pressure face end. The pressure accumulation volume is positioned such that fluid pressure in the pressure accumulation volume changes with that of the cyclic high pressure space.
摘要翻译： 用于燃料喷射器的循环高压流体密封件包括喷射器主体，其限定通过孔连接到低压空间的循环高压空间。 具有压力面端部和侧面的构件安装成在缩回位置和前进位置之间在孔中往复运动。 O形环定位成与构件的侧表面和孔内的注射器主体接触。 构件和孔的一部分限定了位于O形环和压力面端之间的压力积聚体积。 压力积累体积被定位成使得压力积聚体积中的流体压力与循环高压空间的压力变化相关。
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公开(公告)号：US07278593B2
公开(公告)日：2007-10-09
申请号：US10600877
申请日：2003-06-20
申请人： Yongxin Wang , Ye Tian , Norman D. Knapp , Norval J. Wiemken
发明人： Yongxin Wang , Ye Tian , Norman D. Knapp , Norval J. Wiemken
CPC分类号： F02M63/0007 , F02M47/027 , F02M55/002 , F02M61/205 , F02M63/0045
摘要： A common rail fuel injector comprises a three-way control valve that controls the flow of high-pressure fuel to a fuel cavity for fuel injection. Specifically, when the control valve is transitioning to a first, on position, from a second, off position, high-pressure fuel is provided to both the fuel cavity and to a check control cavity, thereby preventing fuel injection until the control valve seats in the first, on position. Once seated in the first, on position, the control valve only provides high-pressure fuel to the fuel cavity allowing fuel injection to occur. To stop injection, the control valve is moved from the first, on position to the second, closed position. Once again, while the control valve is in the transition location between the two positions, high-pressure fuel is provided to both the fuel cavity and to the check control cavity thereby terminating injection. Once the control valve is seated back in the second, closed position, the fuel cavity and the check control cavity are fluidly connected.
摘要翻译： 共轨燃料喷射器包括三通控制阀，其控制用于燃料喷射的燃料腔的高压燃料的流动。 具体地说，当控制阀从第二位置转换到第二位置时，将高压燃料提供给燃料腔和检查控制腔，从而防止燃料喷射，直到控制阀位于 第一个，在位置。 一旦安装在第一个打开位置，控制阀只向燃料腔提供高压燃料，从而允许发生燃油喷射。 为了停止喷射，控制阀从第一个位置移动到第二个关闭位置。 再次，当控制阀处于两个位置之间的过渡位置时，高压燃料被提供给燃料腔和检查控制腔，从而终止喷射。 一旦控制阀回到第二闭合位置，燃料腔和检查控制腔就是流体连接的。
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4.发明授权公开(公告)号：US07077381B2
公开(公告)日：2006-07-18
申请号：US10631163
申请日：2003-07-31
IPC分类号： B05B1/30
CPC分类号： F02M59/466 , F02M47/027 , F02M57/025 , F02M59/366 , Y10T137/0491
摘要： Because of the relatively high pressures experienced within fuel injectors, several internal components can undergo substantial deformation each time fuel is pressurized to injection levels. In some instances, such as when a solenoid operated control valve is positioned near a distortion region, the internal distortion can cause a fuel injector to behave with less predictability, and can undermine consistency from one fuel injector to another, since distortion levels and affects therefrom are likely to vary substantially from one injector to another. In order to desensitize fuel injector performance to this internal distortion, a deflection cavity is disposed within the fuel injector between the distortion region and the needle valve of the fuel injector. This strategy finds particular applicability to needle control valves disposed deep within fuel injectors in order to control fluid pressure on a closing hydraulic surface of a direct control needle valve, which opens and closes the nozzle outlets.
摘要翻译： 由于燃油喷射器中经历的压力相对较高，每当燃料被加压至喷射水平时，几个内部部件可能经历相当大的变形。 在一些情况下，例如当螺线管操作的控制阀位于变形区域附近时，内部变形可能导致燃料喷射器以较少的可预测性表现，并且可能破坏从一个燃料喷射器到另一个的一致性，因为失真水平和影响 可能从一个注射器到另一个注射器显着变化。 为了使燃料喷射器的性能降低到这种内部变形，在燃料喷射器内在燃料喷射器的变形区域和针阀之间设置偏转腔。 该策略特别适用于布置在燃料喷射器内部的针控制阀，以便控制打开和关闭喷嘴出口的直接控制针阀的关闭液压表面上的流体压力。
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公开(公告)号：US06431472B1
公开(公告)日：2002-08-13
申请号：US09742636
申请日：2000-12-21
申请人： Ye Tian , Norval J. Wiemken
发明人： Ye Tian , Norval J. Wiemken
IPC分类号： F02M5100
CPC分类号： F02M61/08 , F02M51/0653
摘要： A nozzle assembly for fuel injection in an internal combustion engine comprising a nozzle tip with a hollow interior defining a fuel chamber. The nozzle tip has at least one spray orifice opening to an outer surface on the nozzle tip, and a valve member at least partially disposed within the nozzle tip. The valve member is moveable between a first position in which the valve member contacts an upper valve seat to prevent fluid communication of fuel from the fuel chamber to the at least one spray orifice, and a second outward position in which the valve member contacts a lower valve seat to allow fluid communication of fuel from the fuel chamber to the at least one spray orifice. The valve member is directly electrically actuated, preferably by a solenoid. Further, the valve member is biased in the closed position and the valve member is pressure balanced when high pressure fuel in present in the fuel chamber.
摘要翻译： 一种用于在内燃机中燃料喷射的喷嘴组件，包括具有限定燃料室的中空内部的喷嘴尖端。 喷嘴尖端具有至少一个喷嘴孔，其通向喷嘴尖端上的外表面，以及至少部分地设置在喷嘴尖端内的阀构件。 阀构件可以在阀构件接触上阀座的第一位置之间移动，以防止来自燃料室的燃料与至少一个喷射孔的流体连通，以及第二向外位置，阀构件接触下部 阀座以允许燃料从燃料室流体连通到至少一个喷射口。 阀构件直接电动致动，优选地通过螺线管。 此外，当存在于燃料室中的高压燃料时，阀构件被偏置在关闭位置并且阀构件被压力平衡。
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公开(公告)号：US5870995A
公开(公告)日：1999-02-16
申请号：US872333
申请日：1997-06-10
CPC分类号： F02M55/025 , F02M61/14
摘要： A hydraulically actuated fuel injection system includes an actuation fluid supply pipe having a flange. A hydraulically actuated fuel injector has a centerline, at least two different clamping surfaces and a side surface with an actuation fluid inlet. The clamping surfaces are positioned on opposite sides of the centerline. A clamp is attached to the flange of the actuation fluid supply pipe around the centerline of the injector while bearing against the at least two different clamping surfaces. The clamp allows for reliable sealing in a small space while minimizing internal distortion to injector components.
摘要翻译： 液压致动燃料喷射系统包括具有凸缘的致动流体供应管。 液压致动的燃料喷射器具有中心线，至少两个不同的夹紧表面和具有致动流体入口的侧表面。 夹紧表面位于中心线的相对两侧。 夹紧件围绕喷射器的中心线附接到致动流体供应管的凸缘，同时抵靠至少两个不同的夹紧表面。 夹具允许在小空间中可靠的密封，同时最小化喷射器部件的内部变形。
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公开(公告)号：US5682861A
公开(公告)日：1997-11-04
申请号：US652174
申请日：1996-05-23
CPC分类号： F16J15/006 , F02M57/02 , F02M59/442 , F02M61/16
摘要： A fuel injector includes an injector body with a plunger bore that opens to a nozzle outlet. A plunger having a pressure face and a side surface is positioned to reciprocate in the plunger bore between an advanced position and a retracted position. A portion of the plunger bore and the plunger define a fuel pressurization chamber that opens to the nozzle outlet. A needle valve is positioned in the injector body adjacent the nozzle outlet and is moveable between an open position which opens the nozzle outlet and a closed position in which the nozzle outlet is closed to the fuel pressurization chamber. An O-ring is in contact with the side surface of the plunger and the plunger bore on the injector body and serves to seal against fuel leakage past the plunger. Pressure acting on the O-ring is attenuated by providing either a pressure accumulation volume between the pressure face end of the plunger and the O-ring and/or a pressure release passage that opens the plunger bore to a low pressure return line below the O-ring.
摘要翻译： 燃料喷射器包括具有通向喷嘴出口的柱塞孔的喷射器主体。 具有压力面和侧表面的柱塞定位成在推进位置和缩回位置之间在柱塞孔中往复运动。 柱塞孔和柱塞的一部分限定了向喷嘴出口开口的燃料加压室。 针阀位于喷嘴主体中，邻近喷嘴出口，并可在打开喷嘴出口的打开位置和喷嘴出口关闭到燃料加压室的关闭位置之间移动。 O形环与柱塞的侧表面和喷射器主体上的柱塞孔接触，并用于密封通过柱塞的燃料泄漏。 作用在O形环上的压力通过在柱塞的压力面端部和O形环之间提供压力积聚体积和/或将压力释放通道打开到低于O的低压回流管线的压力释放通道而减弱 -环。
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公开(公告)号：US06955114B2
公开(公告)日：2005-10-18
申请号：US10729539
申请日：2003-12-05
申请人： Alan R. Stockner , Norval J. Wiemken , Scott F. Shafer , Gene R. Slinkard , Mark S. Cavanagh , Ye Tian
发明人： Alan R. Stockner , Norval J. Wiemken , Scott F. Shafer , Gene R. Slinkard , Mark S. Cavanagh , Ye Tian
IPC分类号： F02M47/00 , F02M47/02 , F02M51/00 , F02M63/00 , F15B13/02 , F15B13/044 , F16K11/00 , G05D16/00
CPC分类号： F02M47/027 , F02M63/0045 , F02M2200/28 , Y10T137/86622
摘要： The present invention relates to high speed control valves which are especially applicable for use in fuel injection systems. Producing a valve with a quick response time within acceptable packaging constraints and with a structure that allows the valve to be mass produced with consistent performance between valves is extremely problematic. By moving flow restrictions within the valve away from the valve seats, flow forces on the valve member can be reduced, while possibly also permitting a reduction in the necessary travel distance of the valve member to improve response time and other performance characteristics. The valve is particularly applicable in controlling hydraulic pressure applied to the closing hydraulic surface of a direct control needle valve in a fuel injector.
摘要翻译： 本发明涉及特别适用于燃料喷射系统的高速控制阀。 在可接受的包装限制内产生具有快速响应时间的阀门，并且具有允许阀门在阀门之间具有一致性能的批量生产的结构是非常有问题的。 通过将阀内的流动限制移动离开阀座，可以减小阀构件上的流动力，同时还可以减小阀构件的必要的行进距离以改善响应时间和其他性能特征。 该阀特别适用于控制施加到燃料喷射器中的直接控制针阀的关闭液压表面的液压。
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9.发明授权Hydraulic fuel injection system with independently operable direct control needle valve 失效液压燃油喷射系统，具有可独立操作的直接控制针阀公开(公告)号：US06951204B2
公开(公告)日：2005-10-04
申请号：US10637452
申请日：2003-08-08
申请人： Scott F. Shafer , Alan R. Stockner , Norval J. Wiemken , Ye Tian
发明人： Scott F. Shafer , Alan R. Stockner , Norval J. Wiemken , Ye Tian
CPC分类号： F02D41/2096 , F02D41/403 , F02M45/08 , F02M47/027 , F02M57/023 , F02M57/025
摘要： A common rail fuel injection system addresses three basic issues involving all common rail fuel injection systems. These include high performance, low variability and high efficiency. These issues are addressed by combining pressure intensification with a three way needle control valve, which exhibits substantial leakage only durring a brief instant when the valve is moving between seats. A quick acting needle control valve tightly coupled to a responsive direct control needle valve, as modified by relative timing with a flow control valve, can produce a wide variety of fuel injection rate shapes, including up to five or more discrete injections per engine cycle.
摘要翻译： 共轨燃油喷射系统涉及涉及所有共轨燃油喷射系统的三个基本问题。 这些包括高性能，低变异性和高效率。 这些问题通过将压力增强与三通针阀控制阀组合来解决，该阀在阀门在座椅之间移动时短时间内显示出实质性的泄漏。 紧密耦合到响应式直接控制针阀的快速作用针控制阀，通过与流量控制阀的相对定时进行修改，可以产生各种各样的燃料喷射速率形状，包括每个发动机循环多达五次或更多次离散喷射。
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10.发明授权
公开(公告)号：US5871155A
公开(公告)日：1999-02-16
申请号：US872278
申请日：1997-06-10
IPC分类号： F02M61/10 , F02M45/00 , F02M57/02 , F02M59/44 , F02M61/16 , F02M61/20 , F02M63/00 , F02M51/06
CPC分类号： F02M59/44 , F02M45/00 , F02M57/025 , F02M2200/50
摘要： A hydraulically actuated fuel injector includes an injector body defining an actuation fluid chamber that opens to an actuation fluid drain, an actuation fluid inlet and a piston bore, and further defining a nozzle chamber that opens to a plunger bore and a nozzle outlet. A control valve, positioned in the injector body, has a first position that opens the actuation fluid inlet and closes the actuation fluid drain, and a second position that closes the actuation fluid inlet and opens the actuation fluid drain. A piston, positioned in the piston bore. A plunger, positioned in the plunger bore, is moveable between an upper position and a lower position. A needle valve member, positioned in the nozzle chamber, is moveable between an open position in which the nozzle outlet is open and a closed position in which the nozzle outlet is blocked. A portion of the plunger bore and the plunger define a fuel pressurization chamber that opens to the nozzle chamber. A variable rate return spring biases the piston and plunger toward their retracted positions. The variable rate return spring has a relatively low spring rate when the piston is a first distance away from its retracted position and has a relatively high spring rate when the piston is at a second distance away from its retracted position.
摘要翻译： 液压致动的燃料喷射器包括喷射器主体，其限定致动流体室，该致动流体室对致动流体排放口，致动流体入口和活塞孔打开，并进一步限定通向柱塞孔和喷嘴出口的喷嘴室。 定位在喷射器主体中的控制阀具有打开致动流体入口并关闭致动流体排放物的第一位置，以及关闭致动流体入口并打开致动流体排放物的第二位置。 活塞，定位在活塞孔中。 定位在柱塞孔中的柱塞可在上部位置和下部位置之间移动。 定位在喷嘴室中的针阀构件可以在喷嘴出口打开的打开位置和喷嘴出口被封闭的关闭位置之间移动。 柱塞孔和柱塞的一部分限定了通向喷嘴室的燃料加压室。 可变速率复位弹簧将活塞和柱塞偏压回缩位置。 当活塞距离其缩回位置是第一距离时，可变速率复位弹簧具有相对较低的弹簧刚度，并且当活塞距离其缩回位置处于第二距离时具有相对较高的弹簧刚度。
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