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51. 发明申请

US20090165749A1 Engine and control valve assembly having reduced variability in operation over time 审中-公开
标题翻译：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
IPC分类号： F16K31/02 , F02M61/18 , F02M51/00
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。

52. 发明申请

US20080217421A1 Cavitation erosion reduction strategy for valve member and fuel injector utilizing same 有权
标题翻译：阀件和燃油喷射器的气蚀减蚀策略
公开(公告)号：US20080217421A1
公开(公告)日：2008-09-11
申请号：US11714697
申请日：2007-03-06
申请人： Stephen R. Lewis , Dana R. Coldren , Jeffrey J. Mueller , Victor Yacoub
发明人： Stephen R. Lewis , Dana R. Coldren , Jeffrey J. Mueller , Victor Yacoub
IPC分类号： F02M51/06 , F02D7/00 , F16K27/00
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。

53. 发明申请

US20080169366A1 Valve member to armature coupling system and fuel injector using same 有权
标题翻译：阀构件到电枢联接系统和使用其的燃料喷射器
公开(公告)号：US20080169366A1
公开(公告)日：2008-07-17
申请号：US11652877
申请日：2007-01-12
申请人： Stephen R. Lewis , Dana R. Coldren , Amy Johanson , Jeffrey Mueller , Eric L. Rogers
发明人： Stephen R. Lewis , Dana R. Coldren , Amy Johanson , Jeffrey Mueller , Eric L. Rogers
IPC分类号： F02M51/06 , F16K1/00
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。

54. 发明申请

US20070277777A1 Power management system for fuel injected engine 有权
标题翻译：燃油喷射发动机电源管理系统
公开(公告)号：US20070277777A1
公开(公告)日：2007-12-06
申请号：US11443100
申请日：2006-05-31
申请人： Travis E. Barnes , Stephen R. Lewis , W. John Love , Timothy J. Matzke , Kevin L. Dea
发明人： Travis E. Barnes , Stephen R. Lewis , W. John Love , Timothy J. Matzke , Kevin L. Dea
IPC分类号： F02B3/00 , G06F17/00
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。

55. 发明授权

US06976474B1 Mechanically actuated, electronically controlled fuel injection system 失效
标题翻译：机械驱动，电控燃油喷射系统
公开(公告)号：US06976474B1
公开(公告)日：2005-12-20
申请号：US10894109
申请日：2004-07-19
申请人： Dana R. Coldren , Stephen R. Lewis , Michael R. Huffman
发明人： Dana R. Coldren , Stephen R. Lewis , Michael R. Huffman
IPC分类号： F02M37/04 , F02M47/02 , F02M57/02 , F02M59/36
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。

56. 发明授权

US06945508B2 Electromagnetic control valve 失效
标题翻译：电磁调节阀
公开(公告)号：US06945508B2
公开(公告)日：2005-09-20
申请号：US10446934
申请日：2003-05-29
申请人： Stephen R. Lewis , Dana R. Coldren , Harish K. Krishnaswamy , Sudhindra K. Ayanji , Jeremy T. Claus
发明人： Stephen R. Lewis , Dana R. Coldren , Harish K. Krishnaswamy , Sudhindra K. Ayanji , Jeremy T. Claus
IPC分类号： F02M47/02 , F02M59/46 , F16K31/02
CPC分类号： F02M63/0017 , F02M57/023 , F02M59/366 , F02M2200/50
摘要： An electromagnetic control valve is provided. The control valve includes a housing defining a bore and a fluid passageway having a seat. A valve element is slidably disposed in the bore and is moveable between a first position where a flow of fluid passes by the seat and a second position where a flow of fluid relative to the seat is blocked. A solenoid having an armature is operatively connected with the valve element. The solenoid is operable to move the valve element from the first position to the second position. A biasing assembly is operatively engaged with the valve element and is adapted to move the valve element from the second position towards the first position. The biasing assembly exerts a first force on the valve element during a first predetermined travel distance from the second position and a second force on the valve element during a second predetermined travel distance. The first force is greater than the second force.
摘要翻译：提供电磁控制阀。控制阀包括限定孔的壳体和具有座的流体通道。阀元件可滑动地设置在孔中并且可在第一位置和第二位置之间移动，第一位置和第二位置之间存在流体通过座的第一位置和第二位置，其中流体相对于座被流动。具有电枢的螺线管与阀元件可操作地连接。螺线管可操作以将阀元件从第一位置移动到第二位置。偏置组件可操作地与阀元件接合并且适于将阀元件从第二位置移动到第一位置。偏压组件在距离第二位置的第一预定移动距离期间在阀元件上施加第一力，并且在第二预定行程距离期间在阀元件上施加第二力。第一个力大于第二个力。

57. 发明授权

US4808908A Curvature correction of bipolar bandgap references 失效
标题翻译：双极性带隙参考的曲率校正
公开(公告)号：US4808908A
公开(公告)日：1989-02-28
申请号：US156178
申请日：1988-02-16
申请人： Stephen R. Lewis , A. Paul Brokaw
发明人： Stephen R. Lewis , A. Paul Brokaw
IPC分类号： G05F3/30 , G05F3/16
CPC分类号： G05F3/30 , Y10S323/907
摘要： A bipolar bandgap reference circuit employing three resistors of selected nominal resistance values and a method of trimming the values of two of the resistors to cancel the slope and curvature of output voltage due to thermal drift. One of the resistors provides a positive temperature coefficient to counter the temperature dependency of bipolar base-emitter characteristics; this resistor is not trimmed. The other two resistors are thin-film, low TC devices and are "trimmed" (i.e., adjusted) sequentially, to match calculated values intended to minimize the first and second derivatives of the bandgap cell output, as a function of temperature.
摘要翻译：采用选定的标称电阻值的三个电阻器的双极性带隙基准电路和一种修整两个电阻器的值以消除由于热漂移引起的输出电压的斜率和曲率的方法。其中一个电阻器提供正温度系数以抵消双极基极 - 发射极特性的温度依赖性; 该电阻器未被修整。另外两个电阻器是薄膜的，低的TC器件，并且被顺序地“修整”（即调节），以使得旨在最小化带隙单元输出的第一和第二导数的计算值作为温度的函数。

58. 发明授权

US09047830B2 Circuits for controlling display apparatus 有权
标题翻译：用于控制显示装置的电路
公开(公告)号：US09047830B2
公开(公告)日：2015-06-02
申请号：US13571215
申请日：2012-08-09
申请人： Stephen English , Stephen R. Lewis
发明人： Stephen English , Stephen R. Lewis
IPC分类号： G09G3/34
CPC分类号： G09G3/3433 , G09G3/3473 , G09G3/348 , G09G2300/0809 , G09G2310/0251 , G09G2320/0252 , G09G2330/021
摘要： An apparatus includes a plurality of display elements arranged in an array and a control matrix coupled to the plurality of display elements to communicate data and drive voltages to the display elements. For each display element, the control matrix includes an actuation circuit coupling a voltage source to the display element. The control matrix is configured to apply an actuation voltage to an actuator of the display element throughout an actuation stroke of the actuator and to initiate the actuation of the actuator after a pre-charging signal that initiated the application of the actuation voltage to the actuator has been deactivated.
摘要翻译：一种装置包括以阵列布置的多个显示元件和耦合到多个显示元件的控制矩阵，以将数据和驱动电压传送到显示元件。对于每个显示元件，控制矩阵包括将电压源耦合到显示元件的致动电路。控制矩阵被配置为在致动器的致动行程中将致动电压施加到显示元件的致动器，并且在启动对致动器施加致动电压的预充电信号之后启动致动器的致动器已停用。

59. 发明授权

US08690118B2 Solenoid actuated device and methods 有权
标题翻译：电磁阀驱动装置及方法
公开(公告)号：US08690118B2
公开(公告)日：2014-04-08
申请号：US12684379
申请日：2010-01-08
申请人： Nadeem N. Bunni , Jayaraman K. Venkataraghavan , Stephen R. Lewis
发明人： Nadeem N. Bunni , Jayaraman K. Venkataraghavan , Stephen R. Lewis
IPC分类号： F16K31/02
CPC分类号： F02M47/027 , F02M63/0021 , H01F7/1638 , Y10T29/4902
摘要： A solenoid actuated device such as a fuel injector includes an actuator body having a plurality of body pieces, and a single-pole solenoid actuator assembly positioned at least partially within the actuator body. The single-pole solenoid actuator assembly includes a one-piece compound armature housing having a load carrying component clamped between the first body piece and the second body piece, and a flux carrying component. The load carrying component includes a high structural strength and a low flux permeability, and the flux carrying component includes a low structural strength and a high flux permeability. A method of making a solenoid actuated device includes placing an armature at a sliding radial air gap with a flux carrying component of a one-piece compound armature housing, and establishing a structural load path by placing a load carrying component of the compound armature housing between a first actuator body piece and a second actuator body piece. A method of operating a single-pole solenoid actuator device includes supporting a flux carrying component of a one-piece compound armature housing with a load carrying component of the compound armature housing, channeling magnetic flux across a sliding air gap between a flux carrying component and the armature, and channeling a clamping load between a first actuator body piece and a second actuator body piece through the load carrying component of the compound armature housing.
摘要翻译：诸如燃料喷射器的电磁致动装置包括具有多个主体件的致动器主体和至少部分地位于致动器主体内的单极螺线管致动器组件。单极螺线管致动器组件包括具有夹在第一主体件和第二主体件之间的承载部件的一件式复合电枢壳体和一个磁通承载部件。承载部件具有高的结构强度和低的磁通密度，并且磁通承载部件包括低结构强度和高磁通量。一种制造螺线管致动装置的方法包括将衔铁放置在具有一体式复合电枢壳体的磁通承载部件的滑动径向气隙处，并且通过将复合电枢壳体的承载部件放置在第一致动器主体部件和第二致动器主体部件。一种操作单极螺线管致动器装置的方法包括：将具有复合电枢壳体的载荷部件的一体式复合电枢壳体的磁通承载部件支撑，将磁通量穿过载流部件和并且通过复合电枢壳体的承载部件引导第一致动器本体件和第二致动器本体件之间的夹紧负载。

60. 发明授权

US08482496B2 Circuits for controlling MEMS display apparatus on a transparent substrate 有权
标题翻译：用于在透明基板上控制MEMS显示装置的电路
公开(公告)号：US08482496B2
公开(公告)日：2013-07-09
申请号：US11811842
申请日：2007-06-12
申请人： Stephen R. Lewis
发明人： Stephen R. Lewis
IPC分类号： G09G3/34
CPC分类号： G09G3/3433 , G09G3/2022 , G09G3/2081 , G09G3/3406 , G09G3/3466 , G09G2300/0473 , G09G2300/08 , G09G2300/0809 , G09G2300/0857 , G09G2310/02 , G09G2310/0262 , G09G2310/063
摘要： The invention relates to methods and apparatus for forming images on a display utilizing a control matrix to control the movement of MEMs-based light modulators.
摘要翻译：本发明涉及利用控制矩阵在显示器上形成图像以控制基于MEM的光调制器的移动的方法和装置。

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