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公开(公告)号：US20110315118A1
公开(公告)日：2011-12-29
申请号：US12825487
申请日：2010-06-29
CPC分类号： F02M53/043 , F02M57/023 , F02M63/0017 , F02M63/007
摘要： Various fuel injection systems and fuel injectors are disclosed that provide varying cooling rates for fuel injectors connected in series to fuel supply and drain rail. The local cooling rate for each injector is manipulated to balance the heat flux or heat transfer across the injectors disposed along the rail. The cooling rates may be manipulated by varying sizes of openings or slots in the nozzle case, by varying annular spaces disposed between the nozzle case and the portion of the injector body that houses the actuator and solenoid assembly, and by varying the size of annular spaces disposed between the nozzle case and the cylinder head. Strategic placement of slots in the nozzle case that direct more flow at the portion of the injector body that houses the actuator and solenoid assembly may also be employed. As a result, the operating temperatures of fuel injectors connected in series to a fuel rail can be manipulated and moderated so the downstream injectors are not prone to overheating.
摘要翻译： 公开了各种燃料喷射系统和燃料喷射器，其为与燃料供应和排出轨道串联连接的燃料喷射器提供变化的冷却速率。 操作每个喷射器的局部冷却速率以平衡沿着轨道布置的喷射器之间的热通量或热传递。 可以通过改变设置在喷嘴壳体和容纳致动器和螺线管组件的喷射器主体的部分之间的环形空间以及通过改变环形空间的尺寸来改变喷嘴壳体中的开口或狭槽的大小来控制冷却速度 设置在喷嘴壳体和气缸盖之间。 喷嘴壳体中的槽的策略布置也可以用于在容纳致动器和螺线管组件的喷射器主体的部分处引导更多的流动。 结果，可以操纵和调节与燃料轨串联连接的燃料喷射器的操作温度，使得下游喷射器不容易过热。
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2.发明授权Reducing variations in close coupled post injections in a fuel injector and fuel system using same 有权减少使用燃料喷射器和燃料系统的燃油喷射器中的紧耦合后喷射的变化公开(公告)号：US08316826B2
公开(公告)日：2012-11-27
申请号：US12321065
申请日：2009-01-15
申请人： Dana R. Coldren , Fergal M. O'Shea
发明人： Dana R. Coldren , Fergal M. O'Shea
IPC分类号： F02M51/06
CPC分类号： F02M47/027 , F02M57/023 , F02M63/0021 , F02M63/0035
摘要： An electrically controlled fuel injector includes an armature that is movable between a first armature position and a second armature position inside an armature cavity containing fuel. By reducing the size of the armature cavity to a squish film drag gap, the armature experiences a squish film drag phenomenon when the armature moves from the first armature position to the second armature position reducing the armature travel speed but also reducing the settling time of the armature after an injection event. By reducing the armature travel speed, the armature experiences a reduction in magnitude of armature bounce allowing the armature to settle down quicker and produce minimum controllable injection events with shorter dwell times than predecessor fuel injectors, especially for close coupled post injection events.
摘要翻译： 电控燃料喷射器包括可在包含燃料的电枢腔内的第一衔铁位置和第二衔铁位置之间移动的电枢。 通过将衔铁腔的尺寸减小到挤压膜阻力间隙，当衔铁从第一衔铁位置移动到第二衔铁位置时，电枢经历挤压膜阻力现象，从而减小电枢移动速度，同时减少了电枢移动速度的稳定时间 注射事件后的衔铁。 通过减小电枢移动速度，电枢经历电枢跳动的幅度减小，允许电枢更快地沉降，并产生比先前的燃料喷射器更短的停留时间的最小可控喷射事件，特别是对于紧密耦合的后喷射事件。
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3.发明申请Reducing variations in close coupled post injections in a fuel injector and fuel system using same 有权减少使用燃料喷射器和燃料系统的燃油喷射器中的紧耦合后喷射的变化公开(公告)号：US20100175670A1
公开(公告)日：2010-07-15
申请号：US12321065
申请日：2009-01-15
申请人： Dana R. Coldren , Fergal M. O'Shea
发明人： Dana R. Coldren , Fergal M. O'Shea
CPC分类号： F02M47/027 , F02M57/023 , F02M63/0021 , F02M63/0035
摘要： An electrically controlled fuel injector includes an armature that is movable between a first armature position and a second armature position inside an armature cavity containing fuel. By reducing the size of the armature cavity to a squish film drag gap, the armature experiences a squish film drag phenomenon when the armature moves from the first armature position to the second armature position reducing the armature travel speed but also reducing the settling time of the armature after an injection event. By reducing the armature travel speed; the armature experiences a reduction in magnitude of armature bounce allowing the armature to settle down quicker and produce minimum controllable injection events with shorter dwell times than predecessor fuel injectors, especially for close coupled post injection events.
摘要翻译： 电控燃料喷射器包括可在包含燃料的电枢腔内的第一衔铁位置和第二衔铁位置之间移动的电枢。 通过将衔铁腔的尺寸减小到挤压膜阻力间隙，当衔铁从第一衔铁位置移动到第二衔铁位置时，电枢经历挤压膜阻力现象，从而减小电枢移动速度，同时减少了电枢移动速度的稳定时间 注射事件后的衔铁。 通过减小电枢行进速度; 电枢经历电枢跳动的幅度减小，允许电枢更快地沉降，并产生比先前的燃料喷射器更短的停留时间的最小可控喷射事件，特别是对于紧密耦合的后喷射事件。
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公开(公告)号：US08434457B2
公开(公告)日：2013-05-07
申请号：US12825487
申请日：2010-06-29
CPC分类号： F02M53/043 , F02M57/023 , F02M63/0017 , F02M63/007
摘要： Various fuel injection systems and fuel injectors are disclosed that provide varying cooling rates for fuel injectors connected in series to fuel supply and drain rail. The local cooling rate for each injector is manipulated to balance the heat flux or heat transfer across the injectors disposed along the rail. The cooling rates may be manipulated by varying sizes of openings or slots in the nozzle case, by varying annular spaces disposed between the nozzle case and the portion of the injector body that houses the actuator and solenoid assembly, and by varying the size of annular spaces disposed between the nozzle case and the cylinder head. Strategic placement of slots in the nozzle case that direct more flow at the portion of the injector body that houses the actuator and solenoid assembly may also be employed. As a result, the operating temperatures of fuel injectors connected in series to a fuel rail can be manipulated and moderated so the downstream injectors are not prone to overheating.
摘要翻译： 公开了各种燃料喷射系统和燃料喷射器，其为与燃料供应和排出轨道串联连接的燃料喷射器提供变化的冷却速率。 操作每个喷射器的局部冷却速率以平衡沿着轨道布置的喷射器之间的热通量或热传递。 可以通过改变设置在喷嘴壳体和容纳致动器和螺线管组件的喷射器主体的部分之间的环形空间以及通过改变环形空间的尺寸来改变喷嘴壳体中的开口或狭槽的大小来控制冷却速率 设置在喷嘴壳体和气缸盖之间。 喷嘴壳体中的槽的策略布置也可以用于在容纳致动器和螺线管组件的喷射器主体的部分处引导更多的流动。 结果，可以操纵和调节与燃料轨串联连接的燃料喷射器的操作温度，使得下游喷射器不容易过热。
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公开(公告)号：US09506434B2
公开(公告)日：2016-11-29
申请号：US13597924
申请日：2012-08-29
申请人： Dana R. Coldren
发明人： Dana R. Coldren
CPC分类号： F02M43/04 , F02M45/086 , F02M61/045 , F02M61/1826
摘要： A fuel injector includes first and second check valve members that open and close first and second nozzle outlet sets, respectively, to inject two fuels that differ in at least one of chemical identity, pressure and molecular state. The first check valve member defines a through passage, includes a closing hydraulic surface exposed to fluid pressure in the first control chamber, and moves into and out of contact with a first seat on an injector body. The second check valve member includes a closing hydraulic surface exposed to fluid pressure in a second control chamber, and moves into and out of contact with a second seat located on the first check valve member. A control valve member is movable between first and second positions that respectively block and allow fluid communication between the first and second control chambers and a drain outlet.
摘要翻译： 燃料喷射器包括第一和第二止回阀构件，其分别打开和关闭第一和第二喷嘴出口组，以注入在化学特征，压力和分子状态中的至少一个方面不同的两种燃料。 第一止回阀构件限定了通过通道，包括暴露于第一控制室中的流体压力的关闭液压表面，并且进入和离开与喷射器主体上的第一座接触。 第二止回阀构件包括在第二控制室中暴露于流体压力的关闭液压表面，并且移动到位于第一止回阀构件上的第二阀座和与其脱离接触。 控制阀构件可在分别阻塞并允许第一和第二控制室与排水出口之间的流体连通的第一和第二位置之间移动。
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6.发明授权Co-axial quill assembly retainer and dual fuel common rail engine using same 有权同轴套筒组件保持架和使用相同的双燃料共轨发动机公开(公告)号：US09181881B2
公开(公告)日：2015-11-10
申请号：US13566225
申请日：2012-08-03
CPC分类号： F02D19/0647 , F02D19/0684 , F02D19/0689 , F02D19/0694 , F02M21/0281 , F02M21/0287 , Y02T10/32 , Y02T10/36 , Y10T29/49231
摘要： A dual fuel common rail engine supplies pressurized natural gas and liquid diesel fuel at different pressures through a co-axial quill assembly for direct injection from a single fuel injector into an engine cylinder. Each coaxial quill assembly includes a matched pair of inner and outer quills that are chosen to have dimensions that allow both quills to sealingly engage each fuel injector at a common conical seat responsive to a clamping force applied along an axis. Matched pairs of inner and outer quills are retained together during pre-installation handling with a retainer that is left between the inner and outer quills after installation in an engine.
摘要翻译： 双燃料共轨发动机通过同轴套筒组件在不同的压力下提供加压天然气和液体柴油燃料，用于从单个燃料喷射器直接喷射到发动机气缸中。 每个同轴套管组件包括一对匹配的内和外套筒，其被选择为具有允许套筒在一个共同的锥形座处密封地接合每个燃料喷射器的尺寸，以响应于沿轴线施加的夹紧力。 在预安装操作期间，配对的内和外套筒被保持在一起，其中保持器在安装在发动机中之后留在内和外套筒之间。
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公开(公告)号：US20090139491A1
公开(公告)日：2009-06-04
申请号：US11987776
申请日：2007-12-04
CPC分类号： H01F7/081 , F02M63/0015 , H01F7/127 , H01F7/1638 , H01F2007/1676 , H01F2007/1692 , Y10T29/4902
摘要： A solenoid assembly is disclosed. The solenoid assembly has a housing having a cavity disposed therein. The solenoid assembly also has a unitary stator having a plurality of separated portions. The separated portions are held together by at least one lip located on an outer periphery of the stator. The stator is sized to fit within the cavity disposed in the housing.
摘要翻译： 公开了螺线管组件。 螺线管组件具有设置在其中的腔体。 螺线管组件还具有具有多个分离部分的单一定子。 分离的部分通过位于定子的外周上的至少一个唇保持在一起。 定子的尺寸设计成适合设置在壳体内的空腔。
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公开(公告)号：US07455243B2
公开(公告)日：2008-11-25
申请号：US10792169
申请日：2004-03-03
CPC分类号： F02M57/023 , F02M47/027 , F02M59/366 , F02M2547/008
摘要： An electronically controlled fuel injector includes a reduced part count and complexity over similar fuel injectors without a substantial reduction in performance capabilities. This is accomplished by using a one-piece needle that is hydraulically balanced and biased toward a closed position with a spring positioned in the needle control chamber. Although subtle, this injector has some ability to control the fuel pressure when the needle valve is opening and closing by adjusting a relative timing of a pressure control valve opening relative to a needle control chamber, using separate electrical actuators. The invention is particularly applicable to fuel injectors that cycle through high and low pressure states during and between injection events, respectively. Cam actuated fuel injectors being particularly well suited.
摘要翻译： 电子控制的燃料喷射器包括相对于类似的燃料喷射器的减少的部件数目和复杂性，而性能能力没有显着降低。 这是通过使用液压平衡的单件针并且通过设置在针控制室中的弹簧朝向关闭位置偏置来实现的。 虽然微妙，但是通过使用单独的电致动器调节针阀相对于针控制室的压力控制阀开口的相对定时，该喷射器具有一些能力来控制针阀打开和关闭时的燃料压力。 本发明特别适用于在喷射事件期间和之间分别在高压状态和低压状态下循环的燃料喷射器。 凸轮致动燃油喷射器特别适合。
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公开(公告)号：US07111614B1
公开(公告)日：2006-09-26
申请号：US11214346
申请日：2005-08-29
申请人： Dana R. Coldren , Daniel R. Ibrahim
发明人： Dana R. Coldren , Daniel R. Ibrahim
CPC分类号： F02M45/12 , F02M45/02 , F02M45/08 , F02M47/027 , F02M63/0005 , F02M63/0007 , F02M63/0015 , F02M63/0028 , F02M63/0045 , F02M63/0049 , F02M63/0068 , F02M63/0225
摘要： A common rail single fluid fuel injection system includes fuel injectors with a single electrical actuator but the ability to produce ramp, square and split injection rate shapes. This is accomplished by including a control valve member that is operably coupled to the electrical actuator and is movable between a high pressure seat and a low pressure seat. A fuel supply passage is opened to a nozzle passage by moving an admission valve member from a closed position to an open position by relieving fuel pressure on a control surface via movement of the control valve member. In addition, a needle valve member is movable from a closed position to an open position by relieving pressure on a closing hydraulic surface associated with the needle valve, which is again accomplished via movement of the control valve member via the electrical actuator.
摘要翻译： 共轨单流体燃料喷射系统包括具有单个电致动器的燃料喷射器，但是具有产生斜坡，正方形和分离喷射速率形状的能力。 这通过包括可操作地联接到电致动器并且可在高压座和低压座之间移动的控制阀构件来实现。 燃料供给通道通过将控制阀构件从关闭位置移动到打开位置，通过控制阀构件的移动来减轻控制表面上的燃料压力而向喷嘴通道打开。 此外，针阀构件通过在与针阀相关联的关闭液压表面上释放压力而从关闭位置移动到打开位置，该关闭液压表面通过经由电致动器的控制阀构件的移动再次实现。
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公开(公告)号：US06227459B1
公开(公告)日：2001-05-08
申请号：US09366025
申请日：1999-08-02
申请人： Dana R. Coldren , David E. Martin
发明人： Dana R. Coldren , David E. Martin
IPC分类号： F02M4702
CPC分类号： F02M47/025 , F02M47/027 , F02M57/02 , F02M59/366 , F02M63/0017 , F02M63/0029 , F02M63/0045 , F02M2200/21 , F16K11/044
摘要： A valve comprises a valve body that includes an upper valve seat and a bore wall that defines a bore. A seat component is at least partially positioned in the bore and includes a lower valve seat. The seat component is radially out of contact with the bore wall. The upper valve seat and the lower valve seat are concentrically coupled via a valve member which is movable between the upper valve seat and the lower valve seat. The valve finds preferred application as a needle control valve in a fuel injector.
摘要翻译： 阀包括阀体，其包括上阀座和限定孔的孔壁。 座部件至少部分地定位在孔中并且包括下阀座。 座部件径向地不与孔壁接触。 上阀座和下阀座通过可在上阀座和下阀座之间移动的阀构件同心联接。 阀在燃料喷射器中被认为是针控制阀的优选应用。
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