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1. 发明授权

US4791318A MOS threshold control circuit 失效
标题翻译： MOS门限控制电路
公开(公告)号：US4791318A
公开(公告)日：1988-12-13
申请号：US132984
申请日：1987-12-15
申请人： Stephen R. Lewis , Scott Lefton
发明人： Stephen R. Lewis , Scott Lefton
IPC分类号： H03K19/003 , H03K17/30
CPC分类号： H03K19/00384
摘要： A circuit for controlling the circuit thresholds on an MOS integrated circuit takes advantage of the fact that all MOS devices of a particular type on the same chip have nearly identical characteristics. The circuit thresholds are varied by applying a control voltage to the back gate of an MOS device in each stage to be controlled. The control voltage is generated in a reference stage which utilizes a feedback loop to servo the back gate voltage of an MOS transistor in the loop. A reference voltage equal to the desired circuit threshold votlage is applied to the input of the reference stage. The reference voltage and the reference stage output are applied to an amplifier in the feedback loop. The amplifier applies to the back gate of the MOS transistor in the reference stage a control voltage that tends to equalize or establish a desired offset between the reference voltage and the reference stage output. The control voltage applied to the reference stage back gate is coupled to the back gate of the MOS transistor in each operating stage. The threshold control circuit is particularly useful in CMOS circuits, but can be utilized in any MOS circuit having an MOS transistor with an accessible back gate.
摘要翻译：用于控制MOS集成电路上的电路阈值的电路利用了同一芯片上的特定类型的所有MOS器件具有几乎相同的特性的事实。通过在要控制的每个级中的MOS器件的背栅上施加控制电压来改变电路阈值。控制电压在参考级中产生，该参考级利用反馈回路来伺服回路中的MOS晶体管的背栅极电压。将等于所需电路阈值投票的参考电压施加到参考级的输入端。参考电压和参考级输出被施加到反馈回路中的放大器。该放大器在参考级中施加到MOS晶体管的背栅极，该控制电压倾向于均衡或建立参考电压和参考级输出之间的期望偏移。施加到参考级背栅的控制电压在每个操作级耦合到MOS晶体管的背栅。阈值控制电路在CMOS电路中特别有用，但可以用于具有可访问后门的MOS晶体管的任何MOS电路中。

2. 发明授权

US09135868B2 Direct-view MEMS display devices and methods for generating images thereon 有权
标题翻译：用于在其上产生图像的直视MEMS显示装置和方法
公开(公告)号：US09135868B2
公开(公告)日：2015-09-15
申请号：US13597943
申请日：2012-08-29
申请人： Nesbitt W. Hagood, IV , Jignesh Gandhi , Abraham McAllister , Rainer M. Malzbender , Stephen R. Lewis
发明人： Nesbitt W. Hagood, IV , Jignesh Gandhi , Abraham McAllister , Rainer M. Malzbender , Stephen R. Lewis
IPC分类号： G09G3/34 , G02B26/00 , G02B26/02 , G09G3/20 , G09G5/06 , G09G5/36 , G09G5/393
CPC分类号： G09G3/346 , G02B26/004 , G02B26/02 , G09G3/2003 , G09G3/2022 , G09G3/2081 , G09G3/3413 , G09G5/06 , G09G5/363 , G09G5/393 , G09G2300/0809 , G09G2310/0235 , G09G2310/0251 , G09G2310/08 , G09G2320/0247 , G09G2320/064 , G09G2320/066 , G09G2330/021 , G09G2360/144
摘要： A direct-view display includes an array of MEMS light modulators and a control matrix formed on a transparent substrate, where each light modulator can be driven into at least two states, and a controller for controlling the states of each light modulator in the array. The control matrix transmits data and actuation voltages to the array. The controller includes an input, a processor, a memory, and an output. The input receives image data encoding an image frame for display. The processor derives a plurality of sub-frame data sets from the image data, where each sub-frame data set indicates desired states of light modulators in multiple rows and multiple columns of the array. The memory stores the plurality of sub-frame data sets. The output outputs the plurality of sub-frame data sets according to an output sequence to drive light modulators into the states indicated in the sub-frame data sets.
摘要翻译：直视图显示器包括MEMS光调制器的阵列和形成在透明基板上的控制矩阵，其中每个光调制器可以被驱动至少两种状态;以及控制器，用于控制阵列中每个光调制器的状态。控制矩阵将数据和致动电压传输到阵列。控制器包括输入，处理器，存储器和输出。该输入接收用于显示的图像帧的编码图像数据。处理器从图像数据中导出多个子帧数据集，其中每个子帧数据集指示阵列的多行和多列的光调制器的期望状态。存储器存储多个子帧数据集。输出根据输出序列输出多个子帧数据组，以驱动光调制器进入子帧数据集中指示的状态。

3. 发明授权

US08333336B2 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：US08333336B2
公开(公告)日：2012-12-18
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： B05B1/30
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。

4. 发明授权

US08322004B2 Indirect laser induced residual stress in a fuel system component and fuel system using same 有权
标题翻译：使用相同的燃料系统部件和燃料系统中的间接激光引起的残余应力
公开(公告)号：US08322004B2
公开(公告)日：2012-12-04
申请号：US12432072
申请日：2009-04-29
申请人： Stephen R. Lewis , Alan R. Stockner , Dennis H. Gibson , Marion B. Grant, Jr. , Avinash R. Manubolu
发明人： Stephen R. Lewis , Alan R. Stockner , Dennis H. Gibson , Marion B. Grant, Jr. , Avinash R. Manubolu
IPC分类号： B21C37/30 , B21D51/16 , B21D53/76
CPC分类号： C21D10/005 , F02M55/02 , F02M61/168 , F02M61/18 , F02M2200/8053 , F02M2200/9061 , Y10T29/479 , Y10T29/49401 , Y10T29/49428
摘要： A metallic fuel system component includes an internal surface and an external surface. The metallic fuel system component is made by inducing compressive residual stress in only a portion of the internal surface of the metallic fuel system component by transmitting a laser shock wave through the metallic fuel system component from the external surface to the internal surface.
摘要翻译：金属燃料系统部件包括内表面和外表面。通过将金属燃料系统部件的激光冲击波从外表面传递到内表面，通过仅在金属燃料系统部件的内表面的一部分中引起压缩残余应力来制造金属燃料系统部件。

5. 发明授权

US08159428B2 Display methods and apparatus 有权
标题翻译：显示方法和装置
公开(公告)号：US08159428B2
公开(公告)日：2012-04-17
申请号：US11326900
申请日：2006-01-06
申请人： Nesbitt W. Hagood , Abraham McAllister , Stephen R. Lewis , Roger W. Barton
发明人： Nesbitt W. Hagood , Abraham McAllister , Stephen R. Lewis , Roger W. Barton
IPC分类号： G09G3/34
CPC分类号： G09G3/3433 , G02B26/02 , G09G3/3406 , G09G2300/08 , G09G2300/0885 , G09G2310/0235 , G09G2310/0251 , G09G2310/0262 , G09G2310/063 , H04N5/7416
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。

6. 发明申请

US20120061491A1 STATOR ASSEMBLY AND FUEL INJECTOR USING SAME 审中-公开
标题翻译：定子组装和燃油喷射器使用相同
公开(公告)号：US20120061491A1
公开(公告)日：2012-03-15
申请号：US13296680
申请日：2011-11-15
申请人： Jayaraman K. Venkataraghavan , Stephen R. Lewis , Shriprasad Lakhapati , Avinash R. Manubolu , Nadeem N. Bunni
发明人： Jayaraman K. Venkataraghavan , Stephen R. Lewis , Shriprasad Lakhapati , Avinash R. Manubolu , Nadeem N. Bunni
IPC分类号： F02M51/00 , B23P11/00
CPC分类号： F02M47/027 , F02M53/04 , F02M53/043 , F02M2700/077 , Y10T29/49826
摘要： A fuel injector for a common rail fuel system includes a common rail inlet port fluidly connected to a high pressure common rail, and a cooling inlet fluidly connected to an output from a lower pressure fuel transfer pump. The cooling fluid circulates internally through the fuel injector to cool a single pole solenoid via both internal and peripheral cooling passages. In order to accommodate a small spatial envelope while providing superior performance, a thin insulating layer may separate the solenoid coil winding from an inner pole piece, and small flux gap clearances may permit a flux carrying portion of the injector body to be a portion of the single pole solenoid assembly.
摘要翻译：用于共轨燃料系统的燃料喷射器包括流体连接到高压共轨的共轨入口和与低压燃料输送泵的输出流体连接的冷却入口。冷却流体在内部循环通过燃料喷射器，以通过内部和外部冷却通道冷却单极螺线管。为了适应小的空间包络，同时提供优异的性能，薄的绝缘层可以将螺线管线圈绕组与内极片分开，并且小的通量间隙间隙可以允许喷射器主体的磁通承载部分是单极螺线管总成。

7. 发明授权

US07980224B2 Two wire intensified common rail fuel system 有权
标题翻译：两线加强共轨燃油系统
公开(公告)号：US07980224B2
公开(公告)日：2011-07-19
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： F02M37/04 , F02M47/02
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器活塞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。

8. 发明申请

US20110168813A1 SOLENOID ACTUATED DEVICE AND METHODS 有权
标题翻译：电磁阀动作装置及方法
公开(公告)号：US20110168813A1
公开(公告)日：2011-07-14
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： F02M51/00 , F16K31/02 , H01F7/06
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。

9. 发明授权

US07866301B2 Self-guided armature in single pole solenoid actuator assembly and fuel injector using same 有权
标题翻译：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：US07866301B2
公开(公告)日：2011-01-11
申请号：US12321809
申请日：2009-01-26
申请人： Jayaraman K. Venkataraghavan , Stephen R. Lewis , Nadeem N. Bunni , Shriprasad Lakhapati
发明人： Jayaraman K. Venkataraghavan , Stephen R. Lewis , Nadeem N. Bunni , Shriprasad Lakhapati
IPC分类号： F02M51/06 , H01F7/16 , F16K31/06
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。

10. 发明授权

US07779854B2 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：US07779854B2
公开(公告)日：2010-08-24
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
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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