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58 条记录 (耗时 0.038 秒)

    Open nozzle fuel injector having drive train wear compensation
    41.
    发明授权
    Open nozzle fuel injector having drive train wear compensation 失效
    打开喷嘴燃油喷射器，具有传动系磨损补偿

    公开(公告)号：US5611317A

    公开(公告)日：1997-03-18

    申请号：US513201

    申请日：1995-08-09

    申请人： Lester L. Peters ,  Julius P. Perr ,  Yul J. Tarr

    发明人： Lester L. Peters ,  Julius P. Perr ,  Yul J. Tarr

    IPC分类号： F02M57/02 ,  F02M59/10 ,  F02M37/04

    CPC分类号： F02M57/024 ,  F02M57/021 ,  F02M59/102

    摘要： A cam operated open nozzle fuel injector is provided comprising a reciprocating plunger assembly including an outer plunger, an inner plunger and a variable volume timing chamber located between the plungers. A hold down force generating means includes a cam having a hold down cam or ramp portion for maintaining the inner plunger in an innermost position against the inner end of the injector body with a sufficient hold down force during each hold down period throughout injector operation independently of injector train wear. The hold down cam portion operates to move the outer plunger inwardly towards the inner plunger throughout a substantial portion of the hold down period. The hold down cam portion functions to compensate for fuel drainage from the timing chamber so as to maintain a predetermined pressure in the timing chamber corresponding to a desired hold down force. The hold down force generating device is capable of maintaining timing fluid in the timing chamber throughout the hold down period and may include a timing chamber drain regulating valve for controlling the drainage of fluid from the timing chamber.

    摘要翻译： 提供了一种凸轮操作的开放喷嘴燃料喷射器，其包括往复式柱塞组件，其包括位于柱塞之间的外柱塞，内柱塞和可变容积定时室。 压紧力产生装置包括具有压紧凸轮或斜面部分的凸轮，用于在每个压紧操作期间以足够的压紧力将内柱塞保持在最靠近喷射器主体的内端的位置，同时具有足够的压紧力， 喷油器列车磨损。 压紧凸轮部分操作以在整个保持期的大部分期间将外柱塞向内移动到内柱塞。 压紧凸轮部分用于补偿来自定时室的燃料排放，以便在对应于期望的压下力的定时室中保持预定的压力。 压紧力产生装置能够在整个压紧时段内保持定时室中的定时流体，并且可以包括用于控制来自定时室的流体排放的定时室排水调节阀。

    Three-way flow valve with variable drain orifice area
    42.
    发明授权
    Three-way flow valve with variable drain orifice area 失效
    具有可变排水口面积的三通流量阀

    公开(公告)号：US5518030A

    公开(公告)日：1996-05-21

    申请号：US354287

    申请日：1994-12-12

    申请人： Chung Y. Liu ,  Benjamin M. Yen ,  Lester L. Peters ,  Julius P. Perr

    发明人： Chung Y. Liu ,  Benjamin M. Yen ,  Lester L. Peters ,  Julius P. Perr

    IPC分类号： F02M59/46 ,  F15B13/04 ,  F15B13/044 ,  F16K11/044 ,  F16K31/06

    CPC分类号： F16K31/0627 ,  F02M59/466 ,  F15B13/0405 ,  F15B13/044 ,  F16K11/044 ,  F02M2200/04 ,  F15B2013/041 ,  Y10T137/86622 ,  Y10T137/86678 ,  Y10T137/86686

    摘要： A solenoid valve for use in a fuel system includes a valve body with a central core and three interconnected passageways. A spool is disposed within the central core and by means of enlarged and reduced diameter portions controls the flow through the solenoid valve. Solenoid armatures cooperatively control movement of the valve spool which is sized and shaped so as to provide a fuel flow path from an inlet passageway to an outlet passageway when the solenoid valve is in an opened condition. When the spool is shifted to a closed condition, incoming fuel is blocked and a flow path is created from the output passageway to a drain passageway, The drain passageway allows excess fuel in the injector to drain to relieve fuel pressure on the metering plunger. As the spool moves from a closed condition to an opened condition, some fuel flows to the drain passageway. The amount of fuel "loss" depends on the speed of the spool and the size of the drain passageway. In order to avoid the higher cost associated with drilling a small diameter hole through the valve body, a larger drilled hole is used. The enlarged end of the valve spool is extended so as to block a substantial portion of the drain passageway orifice. The blocked orifice yields a smaller flow through area and this reduced flow orifice area reduces transition loss and cavitation.

    摘要翻译： 用于燃料系统的电磁阀包括具有中心芯的阀体和三个相互连接的通道。 阀芯设置在中心芯内，并且通过放大和缩小的直径部分控制通过电磁阀的流量。 螺线管电枢协调地控制阀芯的运动，该阀芯的尺寸和形状被设计成当电磁阀处于打开状态时提供从入口通道到出口通道的燃料流动路径。 当阀芯移动到关闭状态时，进入的燃料被堵塞并且从输出通道到排水通道产生流动通道。排放通道允许喷射器中的过量燃料排出以减轻计量柱塞上的燃料压力。 当阀芯从关闭状态移动到打开状态时，一些燃料流向排放通道。 燃料“损失”的数量取决于阀芯的速度和排水通道的大小。 为了避免与通过阀体钻出小直径孔相关联的较高成本，使用较大的钻孔。 阀芯的扩大端部被延伸以阻塞排水通道孔口的大部分。 堵塞的孔产生较小的流过面积，并且该减小的流动孔面积减小了过渡损失和空化。

    Compact closed nozzle assembly for a fuel injector
    43.
    发明授权
    Compact closed nozzle assembly for a fuel injector 失效
    用于燃料喷射器的紧凑型封闭喷嘴组件

    公开(公告)号：US5326034A

    公开(公告)日：1994-07-05

    申请号：US97214

    申请日：1993-07-27

    申请人： Lester L. Peters

    发明人： Lester L. Peters

    IPC分类号： F02M57/02 ,  F02M61/20 ,  F02M47/00

    CPC分类号： F02M57/026 ,  F02M57/02 ,  F02M57/024 ,  F02M57/025 ,  F02M61/20

    摘要： A compact closed nozzle assembly for a fuel injector is provided which reduces the total length of the injector, minimizes the trapped volume of fuel and, thus, the response time of the injector and eliminates a high pressure joint in the injector body. The compact closed nozzle assembly of the injector includes a nozzle valve element positioned in an injector cavity adjacent injector orifices and operable to be placed in an open position in which fuel may flow a fuel transfer circuit through the injector orifices into the combustion chamber, and a closed position in which fuel flow through the injector orifice is blocked. A nozzle spring, which is shorter and larger in diameter than conventional nozzle springs, biases the nozzle valve element into the closed position. A stationary housing is mounted adjacent the nozzle valve element so that a portion of the housing is positioned within an inner radial extent of the nozzle spring while a portion of the fuel transfer circuit extends through the stationary housing within the inner radial extent of the spring. A check valve may be positioned in a check valve cavity formed in the stationary housing within the inner radial extent of the nozzle spring for preventing the flow of fuel from the metering chamber into a supply passage. A button device having a plurality of legs is positioned adjacent the stationary housing in an overlapping manner for operatively connecting the nozzle spring to the nozzle valve element.

    摘要翻译： 提供了一种用于燃料喷射器的紧凑型封闭喷嘴组件，其减少了喷射器的总长度，使燃料的被捕获体积最小化，并且因此减小了喷射器的响应时间并消除了喷射器主体中的高压接头。 喷射器的紧凑型封闭喷嘴组件包括位于喷射器腔体中的喷嘴阀元件，该喷嘴阀元件邻近喷射器孔口并可操作以将其置于打开位置，在该打开位置，燃料可以将燃料传输回路通过喷射器孔流入燃烧室， 关闭位置，其中通过喷射器孔的燃料流被阻挡。 喷嘴弹簧直径比常规喷嘴弹簧更短和更大，将喷嘴阀元件偏压到关闭位置。 固定壳体安装在喷嘴阀元件附近，使得壳体的一部分定位在喷嘴弹簧的内部径向范围内，而燃料传输回路的一部分在弹簧的内部径向范围内延伸穿过固定壳体。 止回阀可以定位在形成在固定壳体中的止回阀腔中，该止回阀腔在喷嘴弹簧的内部径向范围内，以防止燃料从计量室流入供应通道。 具有多个腿的按钮装置以重叠的方式邻近固定壳体定位，以将喷嘴弹簧可操作地连接到喷嘴阀元件。

    Piezoelectric fuel injection system with rate shape control and method of controlling same
    44.
    发明授权
    Piezoelectric fuel injection system with rate shape control and method of controlling same 失效
    具有速率形状控制的压电燃料喷射系统及其控制方法

    公开(公告)号：US06978770B2

    公开(公告)日：2005-12-27

    申请号：US10843357

    申请日：2004-05-12

    申请人： Peter Rauznitz ,  Lester L. Peters ,  John D. Crofts ,  William D. Meyer

    发明人： Peter Rauznitz ,  Lester L. Peters ,  John D. Crofts ,  William D. Meyer

    IPC分类号： F02D41/20 ,  F02M37/04 ,  F02M47/02 ,  F02M59/46 ,  F02M61/16 ,  F02M63/00

    CPC分类号： F02D41/2096 ,  F02M45/12 ,  F02M47/027 ,  F02M61/161 ,  F02M63/0026 ,  F02M63/004 ,  F02M63/0043 ,  F02M63/0068

    摘要： A piezoelectric fuel injection system and a method of controlling same are provided which include a piezoelectric fuel injector having a piezoelectric element, a power source adapted to provide power to the piezoelectric element to actuate the piezoelectric fuel injector, and a controller adapted to charge the piezoelectric element to an initial voltage to begin said injection event, to decrease the voltage from the initial voltage to an intermediate voltage, and to increase the voltage from the intermediate voltage to a primary voltage to thereby control the injection rate shape. The initial voltage level is at least approximately equal to said primary voltage level and preferably approximately equal to a maximum voltage rating. The initial voltage duration, the intermediate voltage duration and the magnitude of the intermediate voltage can be changed or varied to modify the injection or rate shape.

    摘要翻译： 提供了一种压电燃料喷射系统及其控制方法，其包括具有压电元件的压电式燃料喷射器，适于向压电元件供电以驱动压电燃料喷射器的动力源，以及适于对压电元件充电的控制器 元件到初始电压以开始所述注入事件，以将电压从初始电压降低到中间电压，并且将电压从中间电压增加到初级电压，从而控制注入速率形状。 初始电压电平至少近似等于所述初级电压电平，优选近似等于最大额定电压。 可以改变或改变初始电压持续时间，中间电压持续时间和中间电压的幅度以改变注入或速率形状。

    Dual mode EGR valve
    45.
    发明授权
    Dual mode EGR valve 有权
    双模式EGR阀

    公开(公告)号：US06964270B2

    公开(公告)日：2005-11-15

    申请号：US10637361

    申请日：2003-08-08

    申请人： John M. Janssen ,  Bruce A. Watson ,  Charles R. Schenk ,  Josh S. Shao ,  Lester L. Peters ,  David L. Buchanan ,  Wayne A. Eckerle ,  Julius P. Perr

    发明人： John M. Janssen ,  Bruce A. Watson ,  Charles R. Schenk ,  Josh S. Shao ,  Lester L. Peters ,  David L. Buchanan ,  Wayne A. Eckerle ,  Julius P. Perr

    IPC分类号： F02M25/07

    CPC分类号： F02M26/59 ,  F02M26/40 ,  F02M26/58 ,  F02M26/67

    摘要： A preferred embodiment EGR valve permits exhaust gas to be induced into the intake line downstream of the compressor, while minimizing the need to reduce the size of the turbocharger. The preferred embodiment EGR valve exploits variations around the mean pressure in the EGR passage created by the engine cycle by selectively opening when the pressure in the EGR valve exceeds the pressure in the intake line. Thus, exhaust gas is recirculated even when the engine is running near torque peak. The preferred embodiment EGR valve also exploits the higher mean pressure in the exhaust line relative to the intake line at higher engine speeds by remaining open, in order to minimize the energy consumed in opening and closing the EGR valve.

    摘要翻译： 优选的实施方案EGR阀允许排气被吸入到压缩机下游的进气管路中，同时最小化减小涡轮增压器尺寸的需要。 EGR阀利用在发动机循环所产生的EGR通路中的平均压力周围的变化，当EGR阀中的压力超过进气管线中的压力时，选择性地打开EGR阀。 因此，即使当发动机在扭矩峰值附近运行时，废气也被再循环。 在优选实施例中，EGR阀还通过保持打开来利用在较高发动机转速下相对于进气管线的排气管线中较高的平均压力，以便最小化打开和关闭EGR阀时消耗的能量。

    Unit fuel injector having constant start of injection
    49.
    发明授权
    Unit fuel injector having constant start of injection 失效
    单元燃油喷射器具有恒定的喷射开始

    公开(公告)号：US5954029A

    公开(公告)日：1999-09-21

    申请号：US377939

    申请日：1995-01-25

    申请人： Lester L. Peters ,  Julius P. Perr ,  Bai Mao Yen

    发明人： Lester L. Peters ,  Julius P. Perr ,  Bai Mao Yen

    IPC分类号： F02M57/02 ,  F02M37/04

    CPC分类号： F02M57/024

    摘要： A fuel injector for periodically injecting fuel pulses of a variable quantity on a cycle to cycle basis as a function of the pressure of fuel supplied to the injector from a source of fuel and at a constant time during each cycle is set forth including an injector body containing a central bore and an injection orifice at the lower end of the body and a reciprocating plunger assembly including an upper plunger section and a lower plunger section serially mounted within the central bore to define a variable volume metering chamber located between the lower plunger section and the lower end of the injector body containing the injection orifice. The variable volume metering chamber communicates during a portion of each injector cycle with the source of fuel. A variable volume timing chamber is located between the upper and lower plunger sections, and the timing chamber communicates for a portion of each injector cycle with the source of timing fluid and os isolated from the source of timing fluid at a constant time during each cycle.

    摘要翻译： 一种燃料喷射器，用于根据从燃料源供应到喷射器的燃料的压力和在每个循环期间的恒定时间周期性循环地循环地周期性地喷射可变量的燃料脉冲，燃料喷射器包括喷射器主体 在主体的下端包含中心孔和注射孔，以及往复式柱塞组件，其包括串联地安装在中心孔内的上部柱塞部分和下部柱塞部分，以限定位于下部柱塞部分和 喷射器主体的下端包含喷射孔。 可变容积计量室在每个喷射器循环的一部分期间与燃料源连通。 可变体积定时室位于上部和下部柱塞部分之间，并且定时室连通每个喷射器循环的一部分，定时流体源和定时流体源在每个循环期间以恒定时间与定时流体源隔离。

    Two stage fuel injector nozzle assembly
    50.
    发明授权
    Two stage fuel injector nozzle assembly 失效
    两级燃油喷嘴组件

    公开(公告)号：US5899389A

    公开(公告)日：1999-05-04

    申请号：US867356

    申请日：1997-06-02

    申请人： Arpad M. Pataki ,  Lester L. Peters ,  Benjamin M. Yen ,  Julius P. Perr

    发明人： Arpad M. Pataki ,  Lester L. Peters ,  Benjamin M. Yen ,  Julius P. Perr

    IPC分类号： F02M45/08 ,  F02M47/02 ,  F02M61/18 ,  F02M63/00 ,  F02M61/20

    CPC分类号： F02M61/182 ,  F02M45/086 ,  F02M2200/46 ,  F02M47/027

    摘要： A fuel injector assembly is provided which operates to effectively creating a low injection flow rate followed by a high injection flow rate during all engine operating conditions, including idle and low engine speed conditions, to produce a high quality fuel spray with proper atomization and thus improved fuel air mixing resulting in improved emissions abatement and fuel economy. The assembly includes two biased valve elements designed to sequentially open and close to initially open a limited number of orifices followed by the opening of a remainder of the orifices thereby effectively varying the available cross sectional flow area from the nozzle cavity into the combustion chamber of the engine during the injection event. The nozzle valve elements may be spring biased or fluid pressure biased and include biasing surfaces sized to cause the sequential opening and closing of the elements.

    摘要翻译： 提供了一种燃料喷射器组件，其操作以在所有发动机操作条件（包括空转和低发动机转速条件）下有效地产生低喷射流量，随后是高喷射流量，以产生具有适当雾化的高质量燃料喷雾，从而改善 燃料空气混合，从而改善减排和燃油经济性。 组件包括两个偏压的阀元件，设计成顺序地打开和关闭以初始打开有限数量的孔，随后打开剩余的孔，从而有效地改变从喷嘴腔到燃烧室的可用横截面流动面积 发动机在注射事件期间。 喷嘴阀元件可以是弹簧偏置或流体压力偏置的，并且包括尺寸适于引起元件的顺序打开和关闭的偏置表面。