公开(公告)号：US5713335A

公开(公告)日：1998-02-03

申请号：US659619

申请日：1996-06-06

申请人： Julius P. Perr ,  Lester L. Peters ,  Amarjit S. Ghuman ,  Benjamin M. Yen ,  Edward D. Smith ,  David L. Buchanan ,  Yul J. Tarr ,  Laszlo D. Tikk ,  Andrew G. Stiles

发明人： Julius P. Perr ,  Lester L. Peters ,  Amarjit S. Ghuman ,  Benjamin M. Yen ,  Edward D. Smith ,  David L. Buchanan ,  Yul J. Tarr ,  Laszlo D. Tikk ,  Andrew G. Stiles

IPC分类号： F01L13/00 ,  F02D1/16 ,  F02D1/18 ,  F02M57/02 ,  F02M59/10 ,  F02M37/04

CPC分类号： F02D1/16 ,  F01L13/0063 ,  F02D1/183 ,  F02M57/023 ,  F02M59/102

摘要： In accordance with preferred embodiments of the invention a timing adjustment device includes a cam follower that is engaged between an overhead cam and an injector rocker arm, and is mounted on a rotatable eccentric shaft. The geometry of the eccentric shaft and cam follower is designed so that, as timing is varied by rotation of the eccentric shaft, no change is produced in the vertical height of the rocker arm when the cam shaft is on the outer base circle and the injector is bottomed, in order to assure that the "mechanical crush" of the PT type injector is constant despite changes in timing. In a first application of the timing arrangement, it is used together with a simple injector, which does not utilize a multi-plunger arrangement to form a hydraulic link, to achieve lower parasitic losses. To obtain independent control over injection pressure and timing, a fuel injector in which a hydraulic link is formed between plungers of a multi-plunger arrangement is used with the timing arrangement in order to allow the injection pressure to be maintained constant over a wide range of engine speeds without interfering with engine timing.

摘要翻译： 根据本发明的优选实施例，定时调节装置包括凸轮从动件，其接合在顶置凸轮和喷射器摇臂之间，并安装在可旋转的偏心轴上。 偏心轴和凸轮从动件的几何形状被设计成使得当定时通过偏心轴的旋转而变化时，当凸轮轴在外基圆上时，在摇臂的垂直高度上不产生变化，并且喷射器 是为了确保PT型喷射器的“机械挤压”在时间上有变化时是恒定的。 在定时装置的第一应用中，它与简单的喷射器一起使用，其不利用多柱塞装置来形成液压连杆，以实现更低的寄生损耗。 为了获得对喷射压力和时间的独立控制，在定时装置中使用其中在多柱塞装置的柱塞之间形成液压连杆的燃料喷射器，以便允许喷射压力在宽范围内保持恒定 发动机转速，而不会干扰发动机定时。

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。

公开(公告)号：US5441027A

公开(公告)日：1995-08-15

申请号：US208365

申请日：1994-03-10

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

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

IPC分类号： F02D1/08 ,  F02D41/40 ,  F02M57/02 ,  F02M59/10 ,  F02M59/36 ,  F02M59/44

CPC分类号： F02M57/026 ,  F02M57/02 ,  F02M57/021 ,  F02M57/024 ,  F02M57/025 ,  F02M59/105 ,  F02M59/366

摘要： A metering system is provided which controls the amount of fuel supplied to the combustion chambers of a multi-cylinder internal combustion engine comprising a fuel pump for supplying fuel at low pressure to a first and a second group of unit fuel injectors, a first solenoid-operated fuel control valve controlling the flow of fuel to the first set of injectors and a second solenoid-operated fuel control valve controlling the flow of fuel to the second set of injectors. The system may also include first and second solenoid-operated timing fluid control valves associated with the first and the second group of injectors, respectively. The injectors are capable of being in the fuel receiving mode, establishing a metering period, and the timing receiving mode, establishing a timing period, at the same time to increase the amount of time available for metering both timing fluid and fuel. By grouping the various injectors based on the order of injection so that the injectors from each group are placed in the injection mode in spaced periods throughout each cycle of the engine, e.g. injectors from other groups injecting in the period of time between each injection mode, the system can be designed to permit longer metering and timing periods.

摘要翻译： 提供一种计量系统，其控制供应到多缸内燃机的燃烧室的燃料的量，该多缸内燃机包括用于将低压燃料供应给第一和第二组单元燃料喷射器的燃料泵，第一螺线管 - 控制燃料流向第一组喷射器的燃料控制阀以及控制燃料流向第二组喷射器的第二电磁操作燃料控制阀。 该系统还可以包括分别与第一组和第二组喷射器相关联的第一和第二电磁操作定时流体控制阀。 喷射器能够处于燃料接收模式，建立计量周期和定时接收模式，同时建立定时周期，以增加可用于计时定时流体和燃料的时间量。 通过基于喷射顺序对各种喷射器进行分组，使得来自每个组的喷射器在发动机的每个循环中以间隔的时间间隔放置在喷射模式中，例如， 在每次注射模式之间的时间段内注入其他组的注射器，该系统可以被设计为允许更长的测量和定时周期。

公开(公告)号：US5329908A

公开(公告)日：1994-07-19

申请号：US73062

申请日：1993-06-08

申请人： Yul J. Tarr ,  Julius P. Perr

发明人： Yul J. Tarr ,  Julius P. Perr

IPC分类号： F02B1/04 ,  F02B3/06 ,  F02B23/06 ,  F02B43/00 ,  F02B75/12 ,  F02D19/02 ,  F02M21/02 ,  F02M51/06 ,  F02M61/08 ,  F02M51/00

CPC分类号： F02M21/0269 ,  F02B23/0654 ,  F02B23/0696 ,  F02B43/00 ,  F02D19/02 ,  F02M21/0245 ,  F02M21/0254 ,  F02M21/0275 ,  F02M51/0653 ,  F02M61/08 ,  F02B1/04 ,  F02B2075/125 ,  F02B3/06 ,  F02M21/0224 ,  Y02T10/123 ,  Y02T10/125 ,  Y02T10/32

摘要： In accordance with preferred embodiments, a fuel injector has a gas accumulator of a volume that is at least ten times the maximum amount of fuel which would have to be injectable thereby, and a solenoid operated poppet valve with an end face that opens into the combustion cylinder and is shaped to deflect a portion of the fuel injected into direct contact with the ignition plug. In a first embodiment, using a variable fuel supply, an electronic control unit (ECU) controls the injection timing to inject the compressed gas into the cylinders as each's piston nears its top dead center (TDC) position to obtain diesel engine-like efficiencies (.eta.=45%) so long as the compressed gas supply pressure is sufficiently high (at least approximately 2,000 psi), and when the compressed gas supply pressure becomes too low for high efficiency operation (i.e., below 2,000 psi), the ECU changes the manner of operation so that fuel is injected into the engine when piston is near its bottom dead center position (BDC) so that it can be premixed with air prior to ignition to produce gasoline engine-like efficiencies (.eta.=35%).

摘要翻译： 根据优选实施例，燃料喷射器具有容积为至少必须由其注入的最大燃料量的十倍的气体蓄积器，以及具有通向燃烧的端面的电磁操作提升阀 并且成形为使喷射的燃料的一部分与火花塞直接接触。 在第一实施例中，使用可变燃料供应时，电子控制单元（ECU）控制喷射正时以在每个活塞靠近其上止点（TDC）位置时将压缩气体喷射到气缸中，以获得柴油发动机效率（ eta = 45％），只要压缩气体供应压力足够高（至少约2,000psi），并且当压缩气体供应压力变得太低以达到高效率操作（即，低于2,000psi）时，ECU改变 操作方式使得当活塞接近其下死点位置（BDC）时将燃料喷射到发动机中，使得其可以在点燃之前与空气预混合以产生类似汽油发动机的效率（eta = 35％）。

公开(公告)号：US6116273A

公开(公告)日：2000-09-12

申请号：US849129

申请日：1997-12-08

申请人： Yul J. Tarr ,  Lester L. Peters ,  Bai Mao Yen ,  Laszlo D. Tikk ,  Ivar L. Johnson ,  Daniel G. Burns ,  Mustahsen Gull ,  Harry L. Wilson ,  George L. Muntean

发明人： Yul J. Tarr ,  Lester L. Peters ,  Bai Mao Yen ,  Laszlo D. Tikk ,  Ivar L. Johnson ,  Daniel G. Burns ,  Mustahsen Gull ,  Harry L. Wilson ,  George L. Muntean

IPC分类号： F02M57/02 ,  F02M59/20 ,  F02M59/46 ,  F16K15/04

CPC分类号： F02M63/0054 ,  F02M57/02 ,  F02M57/021 ,  F02M57/024 ,  F02M59/205 ,  F02M59/462 ,  F02M59/464

摘要： Check valves (500) are incorporated into a fuel injector so as to form a controlling orifice in the system between the solenoid vales which direct fuel to the respective injection and timing chambers of the fuel injector and the chambers themselves. The precision fuel metering capability of the valve (500) is determined by an annular clearance created between the plunger (512) of the valve and the valve body (510) when the valve is in its maximum stroke. For achieving a bi-stable operation of the valve, the ratio of the plunger valve seat (510d) area to the maximum plunger valve (512b) area and the spring (514) are key parameters. The check valves (500) are formed as cartridge type check valves that can be calibrated outside of the injector prior to the installation thereof.

摘要翻译： PCT No.PCT / US95 / 15873 Sec。 371 1997年12月8日第 102（e）日期1997年12月8日PCT提交1995年12月6日PCT公布。 公开号WO96 / 18033 日期1996年6月13日检查阀（500）被并入燃料喷射器中，以便在电磁阀之间的系统中形成控制孔，其将燃料引导到燃料喷射器和腔室本身的相应喷射和定时室。 当阀处于其最大行程时，阀（500）的精密燃料计量能力由在阀的柱塞（512）和阀体（510）之间产生的环形间隙确定。 为了实现阀的双稳态操作，柱塞阀座（510d）面积与最大柱塞阀（512b）面积和弹簧（514）的比是关键参数。 止回阀（500）形成为盒式止回阀，其可以在其安装之前在喷射器外部校准。

公开(公告)号：US5884611A

公开(公告)日：1999-03-23

申请号：US949755

申请日：1997-10-14

申请人： Yul J. Tarr ,  Laszlo D. Tikk ,  Wayne A. Eckerle ,  Lester L. Peters

发明人： Yul J. Tarr ,  Laszlo D. Tikk ,  Wayne A. Eckerle ,  Lester L. Peters

IPC分类号： F02B3/06 ,  F02M45/08 ,  F02M47/02 ,  F02M67/12 ,  F02M23/00

CPC分类号： F02M47/027 ,  F02M21/0248 ,  F02M43/04 ,  F02M45/086 ,  F02M67/12 ,  F02B3/06

摘要： An effervescent fuel injector, particularly one suitable for diesel and direct injection engine applications, which is capable of injecting, particularly intermittently, an atomized fuel spray with droplets of a size in the range of 5-6 micron SMD without requiring high pressures is achieved in a preferred embodiment effervescent fuel injector of the valve covered orifice (VCO) type having primary and secondary nozzle valves which remain closed when the control valve is not actuated, but which open one or two sets of nozzle orifices depending on fuel volume requirements. A three-way, on-off control valve is used to trigger commencement of the supply of gas via a control valve simultaneously with opening of at least some of the nozzle orifices. Gas and fuel are mixed in a mixing chamber located upstream of the nozzle valves in a manner creating a gas-fuel aeration, and as the aeration is sprayed from the nozzle orifices, the gas expands rapidly breaking the fuel into fine droplets.

摘要翻译： 一种泡腾式燃料喷射器，特别适用于柴油和直接喷射发动机应用的喷嘴，其能够特别间歇地喷射尺寸在5-6微米SMD范围内的液滴的雾化燃料喷雾而不需要高压，实现在 具有主喷嘴阀和辅助喷嘴阀的阀盖孔（VCO）的优选实施例泡腾式燃料喷射器，当控制阀未被致动时保持关闭，而根据燃料量要求打开一组或​​两组喷嘴孔。 三通开关控制阀用于通过控制阀同时打开至少一些喷嘴孔来启动气体的供给。 气体和燃料以形成气体燃料通气的方式在喷嘴阀的上游的混合室中混合，并且当喷嘴从喷嘴孔喷射时，气体迅速膨胀，将燃料分解成细小液滴。

公开(公告)号：US06705543B2

公开(公告)日：2004-03-16

申请号：US09933898

申请日：2001-08-22

申请人： John T. Carroll, III ,  Donald J. Benson ,  Yul J. Tarr

发明人： John T. Carroll, III ,  Donald J. Benson ,  Yul J. Tarr

IPC分类号： F02M4702

CPC分类号： F02M47/027 ,  F02M45/04 ,  F02M45/086 ,  F02M45/12 ,  F02M53/04 ,  F02M59/466 ,  F02M59/468 ,  F02M61/042 ,  F02M61/12 ,  F02M61/1806 ,  F02M61/20 ,  F02M61/205 ,  F02M2200/21 ,  F02M2200/46

摘要： A variable pressure fuel injection system and multi-flow rate injector is provided which produces multiple fuel injection flow rates from a common source of pressurized fuel to enable reductions in emissions, combustion noise and particulates while improving fuel consumption. The present invention includes inner and outer needle valve elements biased into respective closed positions against respective valve seats for controlling the flow through corresponding sets of injection orifices. The movement of each valve is controlled by an injection control valve controlling the drain flow of control fuel from respective control volumes positioned at outer ends of the valve elements. Valve element bias spring preloads along with control flow orifices and needle valve element surface areas are selected to cause, for example, single valve operation at low fuel supply pressure and dual valve operation at high supply pressure.

摘要翻译： 提供了可变压力燃料喷射系统和多流量喷射器，其从共同的加压燃料源产生多个燃料喷射流量，以在减少燃料消耗的同时减少排放，燃烧噪声和颗粒物。 本发明包括内针和外针阀元件，其相对于相应的阀座偏压到相应的关闭位置，用于控制通过相应组的注射孔的流量。 每个阀的运动通过一个喷射控制阀来控制，该喷射控制阀控制控制燃料从定位在阀元件外端的相应控制体积的排出流。 选择阀元件偏压弹簧与控制流量孔和针阀元件表面区域的预加载，例如在低燃料供应压力下进行单阀操作，并在高供应压力下双阀操作。

公开(公告)号：US06990855B2

公开(公告)日：2006-01-31

申请号：US10721662

申请日：2003-11-25

申请人： Taner Tuken ,  Donald J. Benson ,  John T. Carroll, III ,  Yul J. Tarr ,  David M. Carey

发明人： Taner Tuken ,  Donald J. Benson ,  John T. Carroll, III ,  Yul J. Tarr ,  David M. Carey

IPC分类号： G01M15/00

CPC分类号： F02D41/2496 ,  F02D41/3809 ,  F02D41/40 ,  F02D2041/224 ,  F02D2200/0612 ,  Y02T10/44

摘要： A system for estimating a quantity of parasitic leakage of a fluid from a fluid collection unit includes a pressure sensor and a control circuit. The pressure sensor is coupled to the fluid collection unit and configured to produce a pressure value indicative of the pressure of the fluid collection unit. The control circuit is operable to determine a change in pressure value of the fluid collection unit and estimate the quantity of parasitic leakage based on the change in pressure value. The control circuit may also be operable to determine a bulk modulus value of the fluid and estimate the quantity of parasitic leakage based on the change in pressure value and the bulk modulus value.

摘要翻译： 用于估计来自流体收集单元的流体的寄生泄漏量的系统包括压力传感器和控制电路。 压力传感器耦合到流体收集单元并被配置成产生指示流体收集单元的压力的压力值。 控制电路可操作以确定流体收集单元的压力值的变化，并且基于压力值的变化来估计寄生泄漏量。 控制电路还可操作以基于压力值和体积模量值的变化来确定流体的体积模量值并估计寄生泄漏量。

公开(公告)号：US06497223B1

公开(公告)日：2002-12-24

申请号：US09564240

申请日：2000-05-04

申请人： Taner Tuken ,  Donald J. Benson ,  John T. Carroll, III ,  Yul J. Tarr

发明人： Taner Tuken ,  Donald J. Benson ,  John T. Carroll, III ,  Yul J. Tarr

IPC分类号： F02M3704

CPC分类号： F02D41/3845 ,  F02D33/006 ,  F02D41/1402 ,  F02D2041/141 ,  F02D2041/1426 ,  F02D2041/143 ,  F02D2200/063 ,  F02D2250/31 ,  F02M37/0041 ,  F02M37/0047 ,  F02M37/08

摘要： A fuel injection pressure control system includes a control strategy operable to measure or estimate actual fuel injection pressure and control the operation of a fuel supply pump to thereby quickly and accurately control fuel injection pressure. The control strategy includes a closed-loop control strategy operable to compensate for instantaneous changes in system non-linearities, including fuel pump non-linearities and the like, and an open-loop control strategy operable to compensate for all system variations as well as system non-linearities, including between-engine variations in system operating parameters and other noise factors including deteriorating conditions, changes in environment and the like. Each strategy includes an adaptive controller operable to update one or more control parameters to thereby guarantee closed-loop stability, provide for fast and accurate system response during transient events, and minimize overshoots and undershoots.

摘要翻译： 燃料喷射压力控制系统包括可操作以测量或估计实际燃料喷射压力并控制燃料供应泵的操作从而快速且准确地控制燃料喷射压力的控制策略。 该控制策略包括闭环控制策略，其可操作以补偿包括燃料泵非线性等在内的系统非线性的瞬时变化，以及可用于补偿所有系统变化以及系统的开环控制策略 非线性，包括系统运行参数的发动机间变化和其他噪声因素，包括恶化条件，环境变化等。 每个策略包括自适应控制器，其可操作以更新一个或多个控制参数，从而保证闭环稳定性，在瞬态事件期间提供快速和准确的系统响应，并且最小化过冲和下冲。

公开(公告)号：US5819704A

公开(公告)日：1998-10-13

申请号：US903310

申请日：1997-07-30

申请人： Yul J. Tarr ,  John D. Crofts ,  John T. Carroll, III ,  Laszlo D. Tikk

发明人： Yul J. Tarr ,  John D. Crofts ,  John T. Carroll, III ,  Laszlo D. Tikk

IPC分类号： F02M47/00 ,  F02D41/00 ,  F02D41/20 ,  F02D41/38 ,  F02D41/40 ,  F02M47/02 ,  F02M51/00 ,  F02M55/00 ,  F02M55/02 ,  F02M57/02 ,  F02M59/06 ,  F02M59/36 ,  F02M61/14 ,  F02M63/00 ,  F02M63/02 ,  F02M7/00

CPC分类号： F02M51/005 ,  F02M47/027 ,  F02M55/005 ,  F02M57/02 ,  F02M57/025 ,  F02M57/026 ,  F02M59/06 ,  F02M59/366 ,  F02M61/14 ,  F02M63/0225 ,  F02D41/3809 ,  F02M2200/21 ,  F02M2547/003

摘要： The improved needle controlled common rail fuel system of the present invention includes split common rails serving respective sets of unit injectors. Each unit injector includes a mechanically actuated plunger reciprocally mounted to cyclically create gradual periods of increasing pressure in the common rail during the advancement stroke of the plunger followed by respective periods of decreasing pressure during the plunger's retraction stroke. The fuel injectors include a pressure control valve for controlling the amount of fuel pressurized by the plunger and a needle valve control device including an injection control valve for creating an injection event during a pumping event by controlling the fuel flow to drain so as to control the fuel pressure forces acting on an injector needle valve element. A flow limiting device is provided to limit the fuel flow from a control volume to drain during an injection event thus reducing parasitic losses while maintaining quick valve closing. In addition, a pressure energy recuperation means is provided which utilizes the pressure of the fuel in each injector's pressure chamber as a result of the pressure energy stored in the fuel to assist in retraction of the injector plunger during each pumping event.

摘要翻译： 本发明的改进的针控共轨燃料系统包括用于各组单元喷射器的分开的共轨。 每个单元喷射器包括机械致动的柱塞，其往复安装以在柱塞的前进行程期间循环地创建共轨中的逐渐增加的压力周期，随后在柱塞的回缩冲程期间各自减小压力周期。 燃料喷射器包括用于控制由柱塞加压的燃料量的压力控制阀和包括喷射控制阀的针阀控制装置，该喷射控制阀用于通过控制排出的燃料流从而在泵送事件期间产生喷射事件，从而控制 作用在喷射器针阀元件上的燃料压力。 提供流动限制装置以在喷射事件期间将燃料流从控制体积限制到排放，从而在保持快速关阀的同时减少寄生损失。 此外，提供了一种压力能量回收装置，其利用存储在燃料中的压力能量，在每个泵送事件期间有助于使喷射器柱塞缩回，从而利用每个喷射器的压力室中的燃料的压力。