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41.发明申请Self-guided armature in single pole solenoid actuator assembly and fuel injector using same 有权单电磁螺线管执行器组件中的自导电枢和使用其的燃油喷射器公开(公告)号：US20100186719A1
公开(公告)日：2010-07-29
申请号：US12321809
申请日：2009-01-26
CPC分类号： F02M47/027 , F02M63/0019 , F02M63/0024 , H01F7/081 , H01F7/1638
摘要： A self-guided armature assembly for a single pole solenoid assembly includes an armature stem and an armature. The solenoid assembly includes a flux ring component and an actuator body. The armature is movable inside the flux ring. An axial air gap is defined between the top armature surface of the armature and a bottom stator surface of a stator assembly. A sliding air gap is defined between an inner diameter surface of the flux ring and an outer diameter surface of the armature. The self-guided armature is guided along the flux ring via a guiding interaction between the armature and the flux ring. The sliding air gap is smaller than the axial air gap. A stem clearance gap is defined between the armature stem and the actuator body. The sliding air gap is also smaller than the stem clearance gap.
摘要翻译： 用于单极螺线管组件的自导电枢组件包括电枢杆和电枢。 螺线管组件包括磁通环部件和致动器主体。 电枢可在磁通环内移动。 轴向气隙限定在电枢的顶部电枢表面和定子组件的底部定子表面之间。 滑动气隙限定在磁通环的内径表面和电枢的外径表面之间。 自导向电枢通过电枢和磁通环之间的引导相互作用沿磁通环引导。 滑动气隙小于轴向气隙。 在电枢杆和致动器主体之间限定了杆间隙。 滑动气隙也小于阀杆间隙。
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42.发明授权Fuel injector having piezoelectric actuator with preload control element and method 失效具有预压控制元件和方法的压电致动器的燃油喷射器公开(公告)号：US07714483B2
公开(公告)日：2010-05-11
申请号：US12077640
申请日：2008-03-20
申请人： Amy M. Hess , Daniel R. Ibrahim , Stephen R. Lewis , Jayaraman Venkataraghavan , Shriprasad Lakhapati
发明人： Amy M. Hess , Daniel R. Ibrahim , Stephen R. Lewis , Jayaraman Venkataraghavan , Shriprasad Lakhapati
IPC分类号： H01L41/053 , H01L41/083
CPC分类号： H01L41/0536 , F02M47/027 , F02M51/0603 , F02M61/167 , H01L41/083
摘要： A fuel injector includes a piezoelectric actuator subassembly having a casing and a piezoelectric element disposed within the casing. The piezoelectric element has an operating temperature range and includes a thermally contractive material having a negative thermal expansion coefficient over a second temperature range overlapping with the operating temperature range. A preload control element is coupled with the piezoelectric element and includes a thermally expansive material having a positive thermal expansion coefficient over the second temperature range. The preload control element maintains a constant preload on the piezoelectric element over a wide temperature range to inhibit temperature induced variability in operation, and can axially lengthen in opposition to axial shortening of the piezoelectric element, responsive to a temperature increase.
摘要翻译： 燃料喷射器包括具有壳体和设置在壳体内的压电元件的压电致动器子组件。 压电元件具有工作温度范围，并且包括在与工作温度范围重叠的第二温度范围内具有负热膨胀系数的热收缩材料。 预压控制元件与压电元件耦合，并且包括在第二温度范围内具有正热膨胀系数的热膨胀材料。 预压控制元件在宽的温度范围内在压电元件上保持恒定的预载荷，以防止温度引起的操作变化，并且可以响应于温度升高而轴向地延长与压电元件的轴向缩短相反。
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公开(公告)号：US20090302130A1
公开(公告)日：2009-12-10
申请号：US12157268
申请日：2008-06-09
IPC分类号： B05B1/00
CPC分类号： F02M53/04 , F02M53/043 , F02M53/08 , F02M2200/8023 , F02M2200/9053 , F02M2200/9076
摘要： A fuel injector including a nozzle portion, a solenoid operated valve assembly configured to control a flow of fuel to the nozzle portion, a housing, at least a portion of the solenoid operated valve assembly disposed in the housing, the housing formed of a first material having a first thermal conductivity value, and a heat transfer element associated with the solenoid operated valve assembly, the heat transfer element attached to the housing, the heat transfer element formed of a second material having a second thermal conductivity value, the second thermal conductivity value being greater than the first thermal conductivity value.
摘要翻译： 一种燃料喷射器，包括喷嘴部分，构造成控制到喷嘴部分的燃料流动的电磁阀组件，壳体，设置在壳体中的电磁阀组件的至少一部分，壳体由第一材料 具有第一热传导率值和与电磁阀组件相关联的传热元件，传热元件附接到壳体，传热元件由具有第二热导率值的第二材料形成，第二热导率值 大于第一热导率值。
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公开(公告)号：US20090250531A1
公开(公告)日：2009-10-08
申请号：US12082017
申请日：2008-04-08
CPC分类号： F02M57/023 , F02M59/102 , Y10T29/49412 , Y10T74/2107
摘要： A fuel injector includes an injector body having an internal surface and an external surface. A tappet assembly includes a non-guided tappet and a plunger assembly, and is mounted on the injector body. The tappet assembly is movable with respect to the injector body a displacement distance between an advanced position and an extended position. A portion of the plunger assembly is slidably guided along the internal surface of the injector body, while the non-guided tappet is free of contact with both the internal surface and the external surface of the injector body in the advanced and extended positions. The tappet assembly may be prevented from moving beyond the extended position using a snap ring positioned within a retention opening of the fuel injector body.
摘要翻译： 燃料喷射器包括具有内表面和外表面的喷射器主体。 挺杆组件包括非引导挺杆和柱塞组件，并且安装在喷射器主体上。 挺杆组件相对于喷射器主体可以在前进位置和伸出位置之间的位移距离移动。 柱塞组件的一部分沿着喷射器主体的内表面可滑动地被引导，而未被引导的挺杆在先进和伸出位置中与喷射器主体的内表面和外表面都不接触。 可以使用位于燃料喷射器主体的保持开口内的卡环来防止挺杆组件移动超过伸出位置。
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公开(公告)号：US20090194072A1
公开(公告)日：2009-08-06
申请号：US12322479
申请日：2009-02-03
申请人： Stephen R. Lewis , Bradley E. Bartley , Avinash R. Manubolu , Shriprasad G. Lakhapati , Dianqi Fang , Michael Gerstner , Christopher D. Hanson , Jeffrey M. Mullinix
发明人： Stephen R. Lewis , Bradley E. Bartley , Avinash R. Manubolu , Shriprasad G. Lakhapati , Dianqi Fang , Michael Gerstner , Christopher D. Hanson , Jeffrey M. Mullinix
IPC分类号： F02M69/46
CPC分类号： F02M63/0275 , F02M47/027 , F02M63/0026 , F02M63/0225 , F02M2200/701
摘要： A fuel system includes a plurality of fuel injectors fluidly connected to a common rail. Each of the fuel injectors has at least one body component and includes an intensifier control valve for controlling movement of an intensifier piston, a needle control valve for controlling movement of a needle valve member, and exactly one electrical actuator coupled with the intensifier control valve and the needle control valve via a coupling linkage. The intensifier control valve and the needle control valve each include a valve member that is movable with respect to a valve seat. The electrical actuator includes an intermediate position during which the valve member of one of the intensifier control valve and the needle control valve is in contact with the respective valve seat, and the valve member of the other of the intensifier control valve and the needle control valve is out of contact with the respective valve seat.
摘要翻译： 燃料系统包括流体地连接到共轨的多个燃料喷射器。 每个燃料喷射器具有至少一个主体部件，并且包括用于控制增压活塞的运动的增压器控制阀，用于控制针阀构件的运动的针控制阀以及与增压器控制阀耦合的恰好一个电致动器，以及 针控制阀通过联轴器连接。 增压器控制阀和针控制阀各自包括可相对于阀座移动的阀构件。 电致动器包括中间位置，在该中间位置，增压器控制阀和针控制阀之一的阀构件与相应的阀座接触，另一个增压器控制阀的阀构件和针控制阀 与相应的阀座脱离接触。
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46.发明申请Engine and control valve assembly having reduced variability in operation over time 审中-公开发动机和控制阀组件随着时间的推移具有降低的操作变异性公开(公告)号：US20090165749A1
公开(公告)日：2009-07-02
申请号：US12005541
申请日：2007-12-27
申请人： Daniel R. Ibrahim , Stephen R. Lewis , Dianqi Fang
发明人： Daniel R. Ibrahim , Stephen R. Lewis , Dianqi Fang
CPC分类号： F02M47/027 , F02M63/0015 , F02M63/004 , F02M63/0045 , F02M2200/8053 , Y10T137/0318
摘要： A control valve assembly includes a one-piece valve movable between a first position at which the valve closes a seat defined by a housing and positioned fluidly between a fluid inlet and a first fluid outlet, and a second position at which the valve is out of contact with the seat. The valve includes an outer diameter having an annular seating shoulder located thereon which is configured to contact a frustoconical surface of the seat when the valve is at the first position, and the annular seating shoulder is further configured to deform in response to contacting the frustonical surface without changing a seating diameter associated therewith. Closing the seat with the annular seating shoulder reduces performance variability of the valve over time.
摘要翻译： 控制阀组件包括可在第一位置和第二位置之间移动的单件阀，阀的第一位置在阀的第一位置和第二位置之间，第二位置在阀的第一位置处阀闭合由壳体限定的阀座，并且流体地定位在流体入口与第一流体出口之间， 与座位接触。 该阀包括外径，该外径具有位于其上的环形座肩，当该阀位于第一位置时，该外径构造成接触该座椅的截头圆锥形表面，并且该环形座肩进一步构造成响应于截锥形表面 而不改变与其相关联的座径。 用环形座肩关闭座椅会降低阀门的性能变化。
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47.发明申请公开(公告)号：US20080217421A1
公开(公告)日：2008-09-11
申请号：US11714697
申请日：2007-03-06
CPC分类号： F02M57/023 , F02M59/366 , F02M61/168 , F02M63/0015 , F02M63/0031 , F02M65/00 , F02M2200/04 , F02M2200/80 , F02M2200/8076
摘要： A mechanically actuated electronically controlled unit injector includes an electronically controlled spill valve to precisely control timing of fuel pressurization within a fuel pressurization chamber. Cavitation bubbles may be generated in the region of the valve seat when the spill valve member is closed to raise fuel pressure in the fuel injector. This cavitation can cause erosion on the spill valve member and the surrounding injector body. In order to preempt cavitation damage, the valve member may be modified to include a compound annulus that includes a small annulus that corresponds to an identified cavitation damage pattern. Although the generation of cavitation bubbles may continue after such a strategy, cavitation erosion, and the associated liberation of metallic particles into the fuel system can be reduced, and maybe eliminated, by the preemptive cavitation reduction strategy.
摘要翻译： 机械致动的电子控制单元喷射器包括电子控制的溢流阀，以精确地控制燃料加压室内的燃料加压的时间。 当泄漏阀构件关闭以在燃料喷射器中提高燃料压力时，可能在阀座的区域中产生气蚀气泡。 这种气蚀可能导致溢流阀构件和周围注射器主体的侵蚀。 为了预防气蚀损伤，阀构件可以被修改为包括复合环，其包括对应于所识别的空化损伤模式的小环。 虽然在这样的策略之后产生气蚀气泡可能会持续，但可以通过先发制人的空化减少策略来减少气蚀侵蚀和相关的金属颗粒向燃料系统的释放。
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48.发明申请公开(公告)号：US20080169366A1
公开(公告)日：2008-07-17
申请号：US11652877
申请日：2007-01-12
CPC分类号： F02M63/0015 , F02M47/027 , F02M57/023 , F02M61/205 , F02M63/004 , F02M63/0043 , F02M63/0049 , F02M63/0064 , F02M63/007 , F02M2200/8053 , Y10T29/49826 , Y10T137/0491 , Y10T137/6065
摘要： A relatively inexpensive robust attachment strategy that insures good perpendicularity between a valve member and an armature utilizes an intervening nut between the armature and valve member. A valve member is received in a guide bore of a valve body. A nut is threaded onto one end of a valve member. The armature is press fit onto a orientation neutral interface of the nut, and a fixture is utilized to set near perfect perpendicularity between an air gap plane of the armature and a centerline of the valve member. The armature is then welded to the valve member. The weld may be accomplished via laser welding while the valve assembly is firmly held in an appropriate position within the fixture. The valve assembly may be then incorporated into a fuel injector stack of components in a conventional manner.
摘要翻译： 确保阀构件和衔铁之间的良好垂直度的相对便宜的鲁棒附件策略利用电枢和阀构件之间的中间螺母。 阀构件被容纳在阀体的导向孔中。 螺母被拧到阀构件的一端。 衔铁被压配合到螺母的定向中性界面上，并且固定装置用于设定衔铁的气隙平面与阀构件的中心线之间的接近完美的垂直度。 然后将电枢焊接到阀构件。 焊接可以通过激光焊接实现，同时阀组件牢固地保持在固定装置内的适当位置。 然后可以以常规方式将阀组件结合到燃料喷射器组件中。
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公开(公告)号：US20070277777A1
公开(公告)日：2007-12-06
申请号：US11443100
申请日：2006-05-31
CPC分类号： F02D41/402 , F01L9/04 , F02D2041/001 , F02D2400/14 , Y02T10/44
摘要： A power management system for a combustion engine is disclosed. The power management system has a fuel injector, a sensor, and a controller in communication with the sensor and the fuel injector. The fuel injector is operable to inject multiple shots of fuel into the combustion engine during a single injection event. The sensor is configured to sense a speed of the combustion engine and generate a signal indicative of the sensed speed. The controller is configured to limit the number of shots per injection event in response to the signal.
摘要翻译： 公开了一种用于内燃机的电力管理系统。 电力管理系统具有燃料喷射器，传感器和与传感器和燃料喷射器连通的控制器。 燃料喷射器可操作以在单次喷射事件期间将多次喷射的燃料喷射到内燃机中。 传感器被配置为感测内燃机的速度并产生指示感测速度的信号。 控制器配置为响应于信号限制每次注入事件的镜头数。
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公开(公告)号：US06976474B1
公开(公告)日：2005-12-20
申请号：US10894109
申请日：2004-07-19
CPC分类号： F02M47/027 , F02M57/023 , F02M59/366
摘要： A fuel injection system includes a fuel pressurizer that may be cam actuated. The fuel injection system also includes an electronically controlled spill valve and an electronically controlled needle control valve. The energization of the electronically controlled spill valve closes a fuel pressurization chamber to a drain passage to allow fuel pressure in the fuel injector to build to injection levels. The electronically controlled needle control valve controls whether high or low fuel pressure is applied to a closing hydraulic surface associated with a direct control needle valve. The fuel injection system includes a hydraulic circuitry that allows for fuel injection to occur by either maintaining the electronically controlled needle control valve in a de-energized state, or by de-energizing the same, after fuel pressure within the fuel injector has built to injection levels. With a de-energize to inject hydraulic circuitry associated with the direct control needle valve, the fuel injection system can prevent overpressurization in the event of electrical failure in the needle control electronic circuitry. This also provides a fuel engine with a limp home capability in the case of such an electronic problem. In addition, the fuel injection system can have reduced overall power requirements that can lead to downsizing and other cost saving advantages.
摘要翻译： 燃料喷射系统包括可以被凸轮致动的燃料加压器。 燃料喷射系统还包括电子控制的溢流阀和电子控制的针阀。 电子控制溢流阀的通电将燃料加压室关闭到排放通道，以允许燃料喷射器中的燃料压力建立到喷射水平。 电子控制针控制阀控制是否对与直接控制针阀相关联的关闭液压表面施加高或低的燃料压力。 燃料喷射系统包括液压回路，其允许通过将电子控制的针控制阀保持在断电状态或者通过使燃料喷射器内的燃料压力建立到喷射器之后将燃料喷射器保持在断电状态 水平。 通过断电来注入与直接控制针阀相关联的液压回路，燃料喷射系统可防止在针控电子电路中出现电气故障时的过压。 这也提供了一种在这种电子问题的情况下具有跛足的能力的燃料发动机。 此外，燃料喷射系统可以降低总体功率需求，这可以导致小型化和其他成本节省的优点。
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