专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5042445A Electronic controlled fuel supply system for high pressure injector 失效
标题翻译：用于高压喷射器的电子控制燃料供应系统
公开(公告)号：US5042445A
公开(公告)日：1991-08-27
申请号：US572212
申请日：1990-08-24
申请人： Lester L. Peters , Julius P. Perr , Edward D. Smith
发明人： Lester L. Peters , Julius P. Perr , Edward D. Smith
IPC分类号： F02B1/04 , F02B3/06 , F02D7/00 , F02D41/40 , F02M57/02
CPC分类号： F02M57/024 , F02D41/40 , F02D7/002 , F02D7/007 , F02M57/021 , F02B1/04 , F02B3/06 , F02D2200/0602 , F02D2250/31 , Y02T10/44
摘要： An electronically controlled fuel supply system is provided for employing a plurality of fuel injectors which maximize SAC pressures under both low speed and high speed operating conditions and are capable of sustaining SAC pressures in excess of 30,000 psi. The fuel supply system of the present invention includes a gear pump which supplies pressure-modulated fuel to a fueling channel and to a timing channel and from there to a plurality of injectors. Fuel pressure regulator means and timing fluid pressure regulator means are provided in the fueling and timing channel, respectively. An electronic control unit receives information relating to engine operating conditions from a plurality of sensors and actuates the fuel pressure regulator means and the timing fluid pressure regulator means to adjust the pressure as required for the specific engine operating conditions. The timing fluid is delivered to the injectors by the present system at a pressure sufficient to sustain a hydraulic link within the injector of the length necessary to maintain high SAC pressures during injection. Several embodiments of a fuel supply system which achieves these objectives are disclosed. A mounting integral with the cylinder head for an electronically controlled injector fuel supply system is also provided.
摘要翻译：提供了一种电子控制的燃料供应系统，用于使用多个燃料喷射器，其在低速和高速运行条件下使SAC压力最大化，并且能够承受超过30,000psi的SAC压力。本发明的燃料供给系统包括齿轮泵，其将加压调节燃料供给到加油通道和定时通道，并且从那里到多个喷射器。燃料压力调节装置和定时流体压力调节装置分别设置在加油和定时通道中。电子控制单元从多个传感器接收与发动机操作条件相关的信息，并致动燃料压力调节装置和定时流体压力调节装置，以根据特定的发动机运行条件来调节压力。正时流体由本系统以足以维持注射器内的液压连杆在注射期间维持高SAC压力所需的长度的压力被输送到喷射器。公开了实现这些目的的燃料供应系统的几个实施例。还提供了与用于电子控制的喷射器燃料供应系统的气缸盖一体的安装。

2. 发明授权

US5713335A Variable injection timing and injection pressure control arrangement 失效
标题翻译：可变喷射正时和喷射压力控制装置
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。

3. 发明授权

US4909219A Hydromechanical fuel pump system 失效
标题翻译：液压机械燃油泵系统
公开(公告)号：US4909219A
公开(公告)日：1990-03-20
申请号：US298911
申请日：1989-01-19
申请人： Julius P. Perr , Lester L. Peters , Edward D. Smith
发明人： Julius P. Perr , Lester L. Peters , Edward D. Smith
IPC分类号： F02D1/12 , F02D7/00
CPC分类号： F02D1/12 , F02D7/002
摘要： A hydromechanical fuel pump system of supplying timing fluid and fuel to high pressure fuel injectors utilizing a hydromechanical fuel control circuit to control the flow of fuel that is withdrawn from a fuel reservoir by a pump and delivered to the fuel injectors which includes a speed signal generator that produces a fuel pressure in a speed signal branch line of the fuel control circuit that is a function of engine rpm, and a torque shaping module that is provided in a fuel delivery branch of the fuel control circuit. The torque shaping module controls the supply pressure of the fuel flow to the injectors so that, during an initial engine operating range, the supply pressure is merely that as received from the fuel pump, in a second engine operating range, the torque shaping module causes the supply pressure to be a function of fuel pressure in the speed signal branch line as boosted by an assist means, the effect of which is removed in a third engine operating range, and in a last engine operating range, the supply pressure is determined by partially offsetting the effect of the pressure in the speed signal branch line by a counterpressure factor.
摘要翻译：一种液压机械燃料泵系统，其利用液压机械燃料控制电路向高压燃料喷射器供应正时流体和燃料，以控制通过泵从燃料储存器抽出并被输送到包括速度信号发生器的燃料喷射器的燃料流其在燃料控制电路的速度信号分支管线中产生作为发动机转速的函数的燃料压力，以及设置在燃料控制电路的燃料输送分支中的转矩整形模块。转矩整形模块控制到喷射器的燃料流的供应压力，使得在初始发动机工作范围内，供给压力仅仅是从燃料泵接收到的压力，在第二发动机工作范围内，转矩整形模块供给压力作为由辅助装置升压的速度信号支路中的燃料压力的函数，其作用在第三发动机工作范围内被消除，并且在最后的发动机工作范围内，供给压力由部分地抵消了速度信号支路中的压力对反压力的影响。

4. 发明授权

US4971016A Electronic controlled fuel supply system for high pressure injector 失效
标题翻译：用于高压喷射器的电子控制燃料供应系统
公开(公告)号：US4971016A
公开(公告)日：1990-11-20
申请号：US248194
申请日：1988-09-23
申请人： Lester L. Peters , Julius P. Perr , Edward D. Smith
发明人： Lester L. Peters , Julius P. Perr , Edward D. Smith
IPC分类号： F02D41/38 , F02B1/04 , F02B3/06 , F02D7/00 , F02D41/40 , F02M51/08 , F02M57/02
CPC分类号： F02D7/007 , F02D41/40 , F02D7/002 , F02M57/021 , F02M57/024 , F02B1/04 , F02B3/06 , F02D2200/0602 , F02D2250/31 , Y02T10/44
摘要： An electronically controlled fuel supply system is provided for employing a plurality of fuel injectors which maximize SAC pressures under both low speed and high speed operating conditions and are capable of sustaining SAC pressures in excess of 30,000 psi. The fuel supply system of the present invention includes a gear pump which supplies pressure-modulated fuel to a fueling channel and to a timing channel and from there to a plurality of injectors. Fuel pressure regulator means and timing fluid pressure regulator means are provided in the fueling and timing channel, respectively. An electronic control unit receives information relating to engine operating conditions from a plurality of sensors and actuates the fuel pressure regulator means and the timing fluid pressure regulator means to adjust the pressure as required for the specific engine operating conditions. The timing fluid is delivered to the injectors by the present system at a pressure sufficient to sustain a hydraulic link within the injector of the length necessary to maintain high SAC pressures during injection. Several embodiments of a fuel supply system which achieves these objectives are disclosed. A mounting integral with the cylinder head for an electronically controlled injector fuel supply system is also provided.

5. 发明授权

US5979803A Fuel injector with pressure balanced needle valve 失效
标题翻译：带压力平衡针阀的燃油喷射器
公开(公告)号：US5979803A
公开(公告)日：1999-11-09
申请号：US939007
申请日：1997-09-26
申请人： Lester L. Peters , Julius P. Perr , Benjamin M. Yen , George L. Muntean , J. Victor Perr , John D. Crofts
发明人： Lester L. Peters , Julius P. Perr , Benjamin M. Yen , George L. Muntean , J. Victor Perr , John D. Crofts
IPC分类号： F02M47/04 , F02M51/06 , F02M61/04 , F02M63/00 , F02M45/00
CPC分类号： F02M47/046 , F02M51/0603 , F02M51/061 , F02M51/0653 , F02M51/0657 , F02M61/042 , F02M2200/702
摘要： An improved fuel injector for providing precise control over injection timing, quantity and rate shape is provided which includes a fuel pressure balancing device for balancing the fuel pressure forces acting on a needle valve element while the element is in both the closed and open positions thereby permitting an actuator to more precisely and predictably control the movement of the needle valve element. The fuel pressure balancing device includes a cavity formed in the needle valve element and pressure balancing surfaces formed on the needle valve element and positioned in the cavity. The actuator may be a piezoelectric actuator for compressing actuating fluid in an actuating fluid circuit which includes a fluid chamber positioned adjacent a needle valve element and fluidically separate from a fuel supply circuit for supplying high pressure fuel for injection. Actuating fluid pressure in the chamber acts on the needle valve element to initiate injection. In another embodiment, the needle valve element is directly controlled by a solenoid actuator.
摘要翻译：提供了一种用于提供对喷射正时，数量和速率形状的精确控制的改进的燃料喷射器，其包括用于平衡作用在针阀元件上的燃料压力的燃料压力平衡装置，同时元件处于关闭位置和打开位置，从而允许致动器以更精确和可预测地控制针阀元件的运动。燃料压力平衡装置包括形成在针阀元件中的空腔和形成在针阀元件上并定位在空腔中的压力平衡表面。致动器可以是用于压缩致动流体回路中的致动流体的压电致动器，该致动流体回路包括邻近针阀元件定位的流体室，并与用于喷射高压燃料的燃料供应回路流体分离。腔室中的致动流体压力作用在针阀元件上以开始注射。在另一个实施例中，针阀元件由螺线管致动器直接控制。

6. 发明授权

US06557779B2 Variable spray hole fuel injector with dual actuators 有权
公开(公告)号：US06557779B2
公开(公告)日：2003-05-06
申请号：US09796823
申请日：2001-03-02
申请人： Julius P. Perr , J. Victor Perr , Lester L. Peters , Donald J. Benson , John T. Carroll, III
发明人： Julius P. Perr , J. Victor Perr , Lester L. Peters , Donald J. Benson , John T. Carroll, III
IPC分类号： F02M4116
CPC分类号： F02M47/027 , F02M45/04 , F02M45/086 , F02M45/12 , F02M63/0017 , F02M63/0064 , F02M2200/21 , F02M2547/003
摘要： An improved closed nozzle injector assembly for injecting high pressure fuel into the combustion chamber of an engine is provided which includes a first needle valve element associated with a first set of injector orifices, a first needle valve control device for controlling the opening and closing of the first needle valve, a second needle valve associated with a second set of injector orifices and a second needle valve control device for controlling the opening and closing of the second needle valve. Each needle valve control device includes a control volume positioned at one end of the respective needle valve, a control volume charge circuit for supplying high pressure fuel to the respective control volume and the respective injection control valve for controlling the flow of high pressure fuel from the respective control volume to a low pressure drain thereby controlling the movement of the respective needle valve. Using a dedicated control volume and injection control valve for each needle valve element permits effective control over the duration of pilot and post fuel injection events while also providing variable rate shaping capability for optimized emissions and fuel economy. The present dual needle valve element injector includes various components such as biasing springs which are positioned and interconnected to other components in a manner which creates a simple, compact fuel injector package providing independent control of two sets of spray orifices in one injector.

7. 发明授权

US5983863A Compact high performance fuel system with accumulator 失效
标题翻译：具有蓄能器的紧凑型高性能燃油系统
公开(公告)号：US5983863A
公开(公告)日：1999-11-16
申请号：US362449
申请日：1995-06-16
申请人： Mark S. Cavanagh , Bryan W. Swank , Arpad M. Pataki , Bela Doszpoly , John D. Lane , Kent V. Shields , Richard D. Kraus , W. Beale Delano , Julius P. Perr , Jy-Jen Frank Sah , Alexander Guluk , Lester L. Peters
发明人： Mark S. Cavanagh , Bryan W. Swank , Arpad M. Pataki , Bela Doszpoly , John D. Lane , Kent V. Shields , Richard D. Kraus , W. Beale Delano , Julius P. Perr , Jy-Jen Frank Sah , Alexander Guluk , Lester L. Peters
IPC分类号： F02D41/20 , F02D41/38 , F02M41/04 , F02M41/06 , F02M41/14 , F02M41/16 , F02M45/04 , F02M45/12 , F02M51/00 , F02M55/02 , F02M59/30 , F02M59/34 , F02M59/36 , F02M59/44 , F02M59/46 , F02M63/00 , F02M63/02 , F02M37/04
CPC分类号： F02M63/00 , F02D41/20 , F02D41/3827 , F02D41/3836 , F02M41/04 , F02M41/06 , F02M41/14 , F02M41/16 , F02M45/04 , F02M45/12 , F02M51/00 , F02M55/02 , F02M55/025 , F02M59/30 , F02M59/34 , F02M59/36 , F02M59/44 , F02M59/46 , F02M59/466 , F02M63/0003 , F02M63/0007 , F02M63/0008 , F02M63/0225 , F02D2041/2017 , F02D2041/2055 , F02D2041/2058 , F02D2041/224 , F02D2041/225 , F02D2250/02 , F02D2250/31 , F02D41/3845 , F02D41/408 , F02M2200/04 , F02M2200/24 , F02M2200/40 , F04B2205/05 , F04B2205/15
摘要： A unitized fuel supply assembly is disclosed including an in-line reciprocating cam driven pump (14) for supplying fuel to an accumulator (12) from which fuel is directed to a plurality of engine cylinders by means of a distributor (16) mounted on the unitized assembly. Dual pump control valves (20) provide fail safe electronic control over the effective pump displacement. One or more injection control valves mounted on the distributor are provided to control injection timing and quantity. The accumulator (12) contains a labyrinth of interconnected chambers (36) which are shaped and positioned to produce a minimum overall package size while providing for easy manufacture.
摘要翻译： PCT No.PCT / US94 / 05108 Sec。 371日期：1995年6月16日 102（e）日期1995年6月16日PCT提交1994年5月6日PCT公布。第WO94 / 27041号公报日期1994年11月24日公开了一种单元化燃料供应组件，其包括用于向蓄能器（12）供应燃料的直列往复式凸轮驱动泵（14），燃料通过分配器（10）被引导到多个发动机气缸 16）安装在组合式组件上。双泵控制阀（20）为有效泵排量提供故障安全电子控制。设置安装在分配器上的一个或多个喷射控制阀以控制喷射正时和数量。蓄能器（12）包含互连腔室（36）的迷宫形，其形状和定位成产生最小整体包装尺寸，同时提供容易的制造。

8. 发明授权

US5611317A Open nozzle fuel injector having drive train wear compensation 失效
标题翻译：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。

9. 发明授权

US5518030A Three-way flow valve with variable drain orifice area 失效
标题翻译：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。

10. 发明授权

US4986472A High pressure unit fuel injector with timing chamber pressure control 失效
标题翻译：高压单元燃油喷射器，具有定时室压力控制
公开(公告)号：US4986472A
公开(公告)日：1991-01-22
申请号：US402893
申请日：1989-09-05
申请人： Timothy A. Warlick , Jeffrey L. Campbell , Lester L. Peters , Michael E. Lucas , Julius P. Perr , Kuang-Wen T. Wan
发明人： Timothy A. Warlick , Jeffrey L. Campbell , Lester L. Peters , Michael E. Lucas , Julius P. Perr , Kuang-Wen T. Wan
IPC分类号： F02M57/02 , F02M59/30
CPC分类号： F02M57/021 , F02M57/023 , F02M57/024 , F02M59/30
摘要： A fuel injector includes an injector housing having a plunger assembly disposed within a central axial bore and including a lower plunger, an intermediate plunger, and an upper plunger. The lower plunger reciprocates within the central bore to meter a variable quantity of fuel during downward portions of the reciprocating motion. A timing spring is wound around the upper portion of the lower plunger to bias the lower plunger upwardly. A timing chamber formed between the upper and intermediate plungers receives timing fluid to create a hydraulic link between the plungers. Timing fluid exits the timing chamber through a central passage, which may have a reduced area regulating orifice, formed through the intermediate plunger, which is ordinarily closed by a valve mechanism. The valve mechanism is acted upon in part by the timing spring. To improve the pressure regulation using a higher spring load and to accommodate a larger area drainage passage, a valve spring biases closed the passage. The force provided by the valve spring is predetermined to open the valve mechanism and drain timing fluid when the timing fluid pressure exceeds the maximum pressure during injection. After injection is completed, timing fluid exits from the timing chamber either through the central passage or through a spillport which is closable by the nonbeveled lower portion of the upper plunger.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式