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：US5094397A

公开(公告)日：1992-03-10

申请号：US653704

申请日：1991-02-11

申请人： Lester L. Peters ,  Julius P. Perr

发明人： Lester L. Peters ,  Julius P. Perr

IPC分类号： F02M57/02 ,  F02M59/30 ,  F02M59/32 ,  F02M61/20

CPC分类号： F02M59/32 ,  F02M57/024 ,  F02M59/30 ,  F02M61/205 ,  F02M2200/502

摘要： A unit fuel injector assembly (88) periodically injects fuel 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 variable time during each cycle as a function of the pressure of the timing fluid supplied to the injector from a source of timing fluid. A reciprocating plunger assembly (146) is received within the injector body (106) and includes an upper plunger section (148), a lower plunger section (150) and an intermediate plunger section (152) in order to define a variable volume timing chamber (138), a variable volume injection chamber (162) and a variable volume compensation chamber (176). Biasing means including an upper compression spring (180) and lower compression spring (182) are arranged in the compensation chamber (176) to independently bias the lower plunger section (150) and the imtermediate plunger section (152) in opposite directions to tend to collapse the timing chamber (138) and injection chamber (162). Provision is made for causing both the timing chamber (138) and injection chamber (162) to be spilled at the end of each injection event. A spill valve (204) for spilling fuel from the injection chamber (162) is located at a lower end portion of the injection chamber (162), is spring biased to a closed position and is openable by an end face of the injection plunger (150) coming into contact with a contact piece (210) of a spill valve (204) at the end of an injection stroke.

摘要翻译： 单位燃料喷射器组件（88）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可变时间周期性地循环地循环地喷射可变量的燃料作为循环的循环，作为函数 从定时流体源供应到喷射器的定时流体的压力。 往复式柱塞组件（146）被容纳在喷射器主体（106）内并且包括上部柱塞部分（148），下部柱塞部分（150）和中间柱塞部分（152），以便限定可变容积正时室 （138），可变体积注射室（162）和可变体积补偿室（176）。 包括上压缩弹簧（180）和下压缩弹簧（182）的偏压装置布置在补偿室（176）中以独立地将反方向上的下柱塞部分（150）和中间柱塞部分（152）偏置 使正时室（138）和注射室（162）倒塌。 规定了使定时室138和喷射室162在每次喷射事件结束时溢出。 用于从喷射室（162）喷出燃料的溢流阀（204）位于喷射室（162）的下端部分处，被弹簧偏置到关闭位置，并且可由喷射柱塞的端面打开 150）在喷射冲程结束时与溢流阀（204）的接触件（210）接触。

公开(公告)号：US4294109A

公开(公告)日：1981-10-13

申请号：US105290

申请日：1979-12-19

申请人： Lester L. Peters ,  John W. Black

发明人： Lester L. Peters ,  John W. Black

IPC分类号： F02M65/00 ,  F15B19/00 ,  G01M13/00 ,  G01M99/00 ,  G01M15/00 ,  G01M19/00

CPC分类号： F02M65/00 ,  F02M65/006 ,  F15B19/007 ,  G01M13/00 ,  G01M99/00

摘要： This disclosure relates to apparatus for testing a hydraulic assembly. The assembly includes a member having an orifice formed through a wall thereof and a valve member spring urged toward one side of the wall so as to close the orifice. The apparatus includes an enclosure for the assembly and hydraulic pressure means for applying hydraulic pressure to the opposite side of the wall around the orifice. The pressure applying means includes means for gradually changing the hydraulic pressure and indicating the pressure at which the valve member moves to open the orifice. The apparatus further includes means for supporting the assembly on a link so as to simulate actual operating conditions.

摘要翻译： 本公开涉及用于测试液压组件的装置。 组件包括具有通过其壁形成的孔的构件和朝向壁的一侧被推压以便关闭孔的阀构件弹簧。 该装置包括用于组装的外壳和用于向孔周围的壁的相对侧施加液压的液压装置。 压力施加装置包括用于逐渐改变液压并指示阀构件移动以打开孔口的压力的装置。 该装置还包括用于在链路上支撑组件以便模拟实际操作条件的装置。

公开(公告)号：US09903329B2

公开(公告)日：2018-02-27

申请号：US13448098

申请日：2012-04-16

申请人： Lester L. Peters ,  Jeffrey C. Huang ,  David L. Buchanan ,  Corydon Edward Morris ,  Gary Gant ,  Denis Gill ,  Heribert Kammerstetter ,  Ernst Winklhofer

发明人： Lester L. Peters ,  Jeffrey C. Huang ,  David L. Buchanan ,  Corydon Edward Morris ,  Gary Gant ,  Denis Gill ,  Heribert Kammerstetter ,  Ernst Winklhofer

IPC分类号： F02M59/00 ,  F02M61/10 ,  F02M61/18

CPC分类号： F02M61/10 ,  F02M61/1866

摘要： A fuel injector is provided that includes various precise configuration parameters, including dimensions, shape and/or relative positioning of fuel injector features, resulting in improved efficiency of fuel flow through the fuel injector.

公开(公告)号：US09062642B2

公开(公告)日：2015-06-23

申请号：US13052950

申请日：2011-03-21

申请人： Lester L. Peters ,  David L. Buchanan

发明人： Lester L. Peters ,  David L. Buchanan

IPC分类号： F02M61/08 ,  F02M51/06 ,  F02M61/18

CPC分类号： F02M61/1806 ,  F02M45/08 ,  F02M45/12 ,  F02M51/0603 ,  F02M61/045 ,  F02M61/08 ,  F02M61/161 ,  F02M2200/703 ,  Y02T10/123

摘要： A fuel injector is provided that creates variable spray characteristics to effectively reduce emissions, such as NOx emissions and particulate matter. The injector includes a nozzle valve element of the outwardly opening type including a fuel delivery passage and spray holes. The nozzle valve element is operable to move to a low lift position to cause fuel flowing from the spray holes to impinge on the injector body and to deflect toward the combustion chamber, and to move to a high lift position to cause fuel flowing from the spray holes to avoid impingement on injector body and flow in an obstructed manner directly into the combustion chamber. An annular chamber may be formed in the nozzle valve element adjacent the spray holes to receive fuel.

摘要翻译： 提供了一种燃料喷射器，其产生可变喷射特性以有效地减少诸如NOx排放物和颗粒物质的排放。 喷射器包括一个包括燃料输送通道和喷射孔的向外开口类型的喷嘴阀元件。 喷嘴阀元件可操作以移动到较低的提升位置，以使来自喷孔的燃料流入喷射器主体并且朝向燃烧室偏转，并且移动到高升程位置以使燃料从喷雾流出 孔，以避免冲击喷射器主体并以阻碍的方式直接流入燃烧室。 可以在喷嘴阀元件中邻近喷射孔形成环形室，以接收燃料。

公开(公告)号：US06336598B1

公开(公告)日：2002-01-08

申请号：US09552480

申请日：2000-04-18

申请人： Alain M. J. Touchette ,  Bradley D. Douville ,  S. Michael Baker ,  Lester L. Peters ,  Julius Perr ,  A. S. Ghuman ,  Donald J. Benson

发明人： Alain M. J. Touchette ,  Bradley D. Douville ,  S. Michael Baker ,  Lester L. Peters ,  Julius Perr ,  A. S. Ghuman ,  Donald J. Benson

IPC分类号： B11

CPC分类号： F02D19/10 ,  F02D19/0694 ,  F02M21/0254 ,  F02M21/0263 ,  F02M43/02 ,  F02M43/04 ,  F02M45/086 ,  F02M47/027 ,  F02M47/043 ,  F02M47/046 ,  F02M57/025 ,  F02M59/105 ,  Y02T10/32 ,  Y02T10/36

摘要： A hydraulically actuated dual fuel injector separately injects two fuels into a combustion chamber of an internal combustion engine. In particular, the two fuels may be controlled quantities of a first liquid fuel and a second gaseous fuel that are used to fuel a diesel engine. The injector preferably begins injecting the first fuel sequentially before beginning to inject the second fuel. The dual fuel injector comprises: (a) an injector body; (b) a hydraulic fluid inlet port formed in the injector body for enabling pressurized hydraulic fluid from a hydraulic fluid source to be introduced into the interior of the injector body, said hydraulic fluid being of sufficient pressure to maintain sealing and to prevent leakage of the gaseous fuel into the hydraulic fluid; (c) a first fuel inlet port formed in the injector body for enabling a first fuel to be introduced into the interior of the injector body; (d) a first injection valve disposed within the injector body fluidly connected to the first fuel inlet port for controlling injection of the first fuel from the injector through a first fuel ejection port; (e) a second inlet port formed in the injector body for enabling a second fuel to be introduced into the interior of the injector body; (f) a second injection valve disposed within the injector body fluidly connected to the second inlet port for controlling injection of the second fuel from the injector through a second fuel ejection port; (g) a first two-way control valve which controls the flow of the hydraulic fluid to actuate the first injection valve; (h) a second control valve which controls the flow of the hydraulic fluid to actuate the second injection valve; (i) a metering device within the injector body for metering the amount of first fuel injected by the first injection valve; and (j) a seal in the injector body which prevents leakage of the second fuel within the injector body.

公开(公告)号：US06276334B1

公开(公告)日：2001-08-21

申请号：US09255780

申请日：1999-02-23

申请人： Patrick F. Flynn ,  Gary L. Hunter ,  Axel O. zur Loye ,  Omowoleola C. Akinyemi ,  Russ P. Durrett ,  Greg A. Moore ,  George G. Muntean ,  Lester L. Peters ,  Patrick M. Pierz ,  Julie A. Wagner ,  John F. Wright ,  Jackie M. Yeager

发明人： Patrick F. Flynn ,  Gary L. Hunter ,  Axel O. zur Loye ,  Omowoleola C. Akinyemi ,  Russ P. Durrett ,  Greg A. Moore ,  George G. Muntean ,  Lester L. Peters ,  Patrick M. Pierz ,  Julie A. Wagner ,  John F. Wright ,  Jackie M. Yeager

IPC分类号： F02M700

CPC分类号： F02D13/0215 ,  F01L1/146 ,  F01L1/181 ,  F01L1/352 ,  F01L9/02 ,  F01L2001/34486 ,  F01P2003/021 ,  F01P2060/02 ,  F02B1/12 ,  F02B1/14 ,  F02B3/06 ,  F02B19/14 ,  F02B29/00 ,  F02B29/0412 ,  F02B29/0418 ,  F02B29/0493 ,  F02B33/443 ,  F02B37/04 ,  F02B37/18 ,  F02B75/02 ,  F02B2075/025 ,  F02B2075/027 ,  F02B2275/32 ,  F02D9/04 ,  F02D13/0203 ,  F02D13/0249 ,  F02D13/0257 ,  F02D13/0265 ,  F02D13/0269 ,  F02D13/0273 ,  F02D13/0276 ,  F02D13/028 ,  F02D15/04 ,  F02D19/0605 ,  F02D19/061 ,  F02D19/0647 ,  F02D19/0649 ,  F02D19/0692 ,  F02D19/08 ,  F02D19/12 ,  F02D35/02 ,  F02D35/023 ,  F02D35/028 ,  F02D41/0025 ,  F02D41/008 ,  F02D41/0085 ,  F02D41/3035 ,  F02D41/3041 ,  F02D41/38 ,  F02D41/403 ,  F02D2041/001 ,  F02D2041/389 ,  F02D2200/0414 ,  F02G2243/24 ,  F02G2250/24 ,  F02M25/00 ,  F02M25/0227 ,  F02M25/028 ,  F02M25/03 ,  F02M26/01 ,  F02M26/07 ,  F02M26/08 ,  F02M26/23 ,  F02M26/33 ,  F02M26/615 ,  F02M31/02 ,  F02M31/042 ,  F02P19/00 ,  Y02T10/12 ,  Y02T10/125 ,  Y02T10/126 ,  Y02T10/128 ,  Y02T10/14 ,  Y02T10/142 ,  Y02T10/144 ,  Y02T10/146 ,  Y02T10/36 ,  Y02T10/42

摘要： A premixed charge compression ignition engine, and a control system, is provided which effectively initiates combustion by compression ignition and maintains stable combustion while achieving extremely low oxides of nitrogen emissions, good overall efficiency and acceptable combustion noise and cylinder pressures. The present engine and control system effectively controls the combustion history, that is, the time at which combustion occurs, the rate of combustion, the duration of combustion and/or the completeness of combustion, by controlling the operation of certain control variables providing temperature control, pressure control, control of the mixture's autoignition properties and equivalence ratio control. The combustion control system provides active feedback control of the combustion event and includes a sensor, e.g. pressure sensor, for detecting an engine operating condition indicative of the combustion history, e.g. the start of combustion, and generating an associated engine operating condition signal. A processor receives the signal and generates control signals based on the engine operating condition signal for controlling various engine components to control the temperature, pressure, equivalence ratio and/or autoignition properties so as to variably control the combustion history of future combustion events to achieve stable, low emission combustion in each cylinder and combustion balancing between the cylinders.

摘要翻译： 提供了预混合充气压缩点火发动机和控制系统，其通过压缩点火有效地启动燃烧并保持稳定的燃烧，同时实现极低的氮氧化物排放，良好的总体效率和可接受的燃烧噪声和气缸压力。 本发动机和控制系统通过控制提供温度控制的某些控制变量的操作来有效地控制燃烧历史，即燃烧发生时间，燃烧速率，燃烧持续时间和/或燃烧完整性 ，压力控制，混合物自燃特性控制和当量比控制。 燃烧控制系统提供对燃烧事件的主动反馈控制，并且包括传感器，例如。 压力传感器，用于检测指示燃烧历史的发动机运行状态，例如， 燃烧开始，并产生相关联的发动机运转状态信号。 处理器接收信号并基于发动机运转状态信号产生控制信号，以控制各种发动机部件，以控制温度，压力，当量比和/或自燃特性，以便可变地控制未来燃烧事件的燃烧历史以达到稳定 ，每个气缸中的低排放燃烧和气缸之间的燃烧平衡。

公开(公告)号：US5894992A

公开(公告)日：1999-04-20

申请号：US682966

申请日：1996-07-18

申请人： Chung Y. Liu ,  Amarjit S. Ghuman ,  Benjamin M. Yen ,  Lester L. Peters ,  Edward D. Smith

发明人： Chung Y. Liu ,  Amarjit S. Ghuman ,  Benjamin M. Yen ,  Lester L. Peters ,  Edward D. Smith

IPC分类号： F02M45/00 ,  F02M45/06 ,  F02M57/02 ,  F02M59/10 ,  F02M47/02

CPC分类号： F02M57/026 ,  F02M45/00 ,  F02M45/063 ,  F02M57/025 ,  F02M59/105

摘要： Fuel injection rate shaping is integrated into the pressure intensification stage of a hydraulically actuated fuel injector having a pressure intensifier. In a first embodiment, the pressure intensification plunger is formed of two parts creating a damping chamber therebetween from which fluid is forced out through orifices in a lower one of the plunger parts during an initial phase of displacement of the upper part. Thus, injection will be performed initially at a lower pressure and rate, which increases once the plunger parts make contact. In a second embodiment, a throttled flow is set via a restrictor housing that telescopingly receives the upper plunger part, so that a lower injection rate occurs while fluid is bled off through a restricted flow path between the restrictor housing and the upper plunger part, and a higher injection rate is produced once a port in the upper plunger clears the restrictor housing. In a third embodiment, the two plunger parts of the intensifier have different areas relative to each other. In a fourth embodiment, flow to the intensifier plunger is varied by the intensifier plunger co-acting with a shaped inlet port increasing the effective area of the inlet port through which flow enters the intensifier as the intensifier plunger is displaced during its injection stroke. In a fifth embodiment, a throttling effect produced by a clearance between a protrusion on the intensifier plunger and a receiving bore in the intensifier body is used reduce the intensification effect during the initial phase of injection.

摘要翻译： 燃料喷射率成形被集成到具有压力增强器的液压致动燃料喷射器的增压阶段中。 在第一实施例中，压力增强柱塞由两部分形成，在其之间形成阻尼室，在上部位移的初始阶段期间，流体被迫通过下部一个柱塞部件中的孔排出。 因此，首先将以较低的压力和速率进行喷射，一旦柱塞部件接触就增加。 在第二实施例中，通过可伸缩地容纳上部柱塞部件的限制器壳体设置节流流动，使得当流体通过限制器壳体和上部柱塞部件之间的受限制的流动路径流出时，发生较低的喷射速率，以及 一旦上柱塞中的端口清除限流器壳体，就产生较高的喷射速率。 在第三实施例中，增压器的两个柱塞部分相对于彼此具有不同的区域。 在第四实施例中，到增压器柱塞的流动由增强器柱塞与成形入口端口一起作用而变化，当增压器柱塞在其注入冲程期间位移时，增加器柱塞增加了入口的有效面积，通过该入口入口进入增压器。 在第五实施例中，通过增压器柱塞上的突起与增压体之间的接收孔之间的间隙产生的节流效应用于降低注射初始阶段的强化效应。

公开(公告)号：US5277162A

公开(公告)日：1994-01-11

申请号：US7973

申请日：1993-01-22

申请人： Edward D. Smith ,  David L. Buchanan ,  Lester L. Peters

发明人： Edward D. Smith ,  David L. Buchanan ,  Lester L. Peters

IPC分类号： F02M47/00 ,  F02D1/12 ,  F02D7/00 ,  F02M55/00 ,  F02M57/02 ,  F02M37/04

CPC分类号： F02D7/002 ,  F02D1/12 ,  F02D7/007 ,  F02M57/024

摘要： A fuel system for fuel injectors of an internal combustion engine is provided with a hydromechanical timing valve having a valve body assembly with a barrel and plunger arrangement. The plunger is displaceable within the barrel under the counterbalancing forces of rail fuel pressure (load) and one or more timing valve springs. The relative position of the barrel and plunger determines the effective size of the port through which timing fluid can flow. In accordance a first embodiment, the plunger has a tapered head which covers and uncovers ports in the barrel to a greater or lesser extent, thereby creating a variable flow-through cross section. Alternatively, in accordance with other embodiments, the barrel has ports with slot-like orifices of progressively changing widths which coact with a metering groove on the spool to define a variable flow cross section through which the timing fluid must pass. Optionally, for highway motor vehicle applications, to increase fuel economy, a delayed timing advance feature can be incorporated into the timing valve. More specifically, by a controlled leakage effect, the valve plunger can be caused to shift in a direction causing timing to be advanced (timing fluid supply increased) only after a predetermined period of time has elapsed. This delayed timing advance can be produced, in accordance with the invention, via a second, internal plunger, or via a second, diaphragm-operated external plunger.

摘要翻译： 一种用于内燃机的燃料喷射器的燃料系统设置有具有带有筒体和柱塞装置的阀体组件的液压机械正时阀。 柱塞在轨道燃料压力（负载）和一个或多个定时阀弹簧的平衡力下在筒内可移动。 筒和柱塞的相对位置决定了定时流体可以流过的端口的有效尺寸。 根据第一实施例，柱塞具有锥形头部，该锥形头部可以或多或少地覆盖和暴露筒体中的端口，从而形成可变的流过横截面。 或者，根据其它实施例，筒体具有端口，其具有逐渐变化的宽度的槽状孔口，其与阀芯上的计量槽共同定义可变流量横截面，正时流体必须通过该横截面通过。 可选地，对于公路机动车辆应用，为了提高燃料经济性，可以将延时定时提前特征结合到定时阀中。 更具体地，通过受控的泄漏效应，只有在经过了预定时间段之后，才能使阀柱塞在导致正在提前定时的方向上移动（定时流体供应增加）。 根据本发明，可以经由第二内部柱塞或经由第二隔膜操作的外部柱塞来产生该延迟定时提前。

公开(公告)号：US5098260A

公开(公告)日：1992-03-24

申请号：US512442

申请日：1990-04-23

申请人： Edward D. Smith ,  Lester L. Peters

发明人： Edward D. Smith ,  Lester L. Peters

IPC分类号： F02M59/20 ,  F02M69/12

CPC分类号： F02M69/125 ,  F02M59/205

摘要： An electro-hydraulic position-servo device to quickly and accurately position a stop element is provided for use with a positive displacement fuel injection system, wherein a shuttle is used to positively displace pre-metered slugs of fuel to unit injectors. The stop device is operatively associated with a control shaft having at least one helical surface thereon; the stop element and control shaft slidably located within a housing. The housing permits communication between at least one pressurized fluid source and a drain line by way of a chamber within which the control shaft is located. Thus, by simply rotating the control shaft from rotational drive means, the control shaft will assume an axial position determined by the orientation of the helical surface with respect to the supply and drain lines. The device is adjustable by rotation of the shaft to a new position with the re-orientation of the helical surface.

摘要翻译： 提供了用于快速且精确地定位止动元件的电动液压位置伺服装置，用于与正排量燃料喷射系统一起使用，其中使用梭子将预计量的燃料块塞到单元喷射器。 止动装置与其上具有至少一个螺旋表面的控制轴可操作地相关联; 止动元件和控制轴可滑动地位于壳体内。 壳体允许至少一个加压流体源和排出管线之间通过控制轴所位于的腔室内的连通。 因此，通过简单地从旋转驱动装置旋转控制轴，控制轴将呈现由相对于供排管线的螺旋形表面的取向确定的轴向位置。 该装置可通过轴的旋转调节到具有螺旋表面的重新定向的新位置。