公开(公告)号：US20030111054A1

公开(公告)日：2003-06-19

申请号：US10319468

申请日：2002-12-16

发明人： Hiroki Ishida

IPC分类号： F02M041/00

CPC分类号： F02M41/126 ,  F02D1/04 ,  F02D1/065 ,  F02D1/10 ,  F02D2001/0005 ,  F02D2001/0025 ,  F02D2001/186 ,  F02M41/128 ,  F02M59/366

摘要： A chamfering portion provided at an inlet corner of a port of an inside way-out in a governor shaft is effective to decrease energy loss of fuel flowing into the inside way-out to less than one half in comparison with that of a conventional art. A flow amount characteristic of the fuel into the inside way-out improves so that a hysteresis between a pump chamber pressure decrease characteristic on increasing a load (a retarding characteristic) and a pump chamber pressure increase characteristic on decreasing the load (an advancing characteristic) is lowered, resulting in securing a highly accurate control of fuel injection timing.

摘要翻译： 与传统技术相比，设置在调速器轴内侧出口端口的入口角部的倒角部分有效地将流入内侧的燃料的能量损失减少到不到一半。 燃料进入内部通路的流量特性提高，使得在增加负载（延迟特性）时的泵室压力降低特性与减小负载（前进特性）之间的泵室压力增加特性之间的滞后， 降低，从而确保燃料喷射正时的高精度控制。

公开(公告)号：US20040060543A1

公开(公告)日：2004-04-01

申请号：US10668233

申请日：2003-09-24

申请人： DENSO CORPORATION

发明人： Hiroki Ishida

IPC分类号： F02M041/00

CPC分类号： F02M41/126 ,  F02D1/04 ,  F02D1/10 ,  F02D1/183 ,  F02D2001/186 ,  F02M39/005 ,  F02M41/128

摘要： A load timer mechanism of a fuel injection pump includes a governor shaft, which is secured to a housing, and a governor sleeve, which is axially slidably supported around the governor shaft. The governor shaft includes a fuel relief passage, which is communicated with a low pressure side of the pump and has an outer opening in an outer peripheral surface of the governor shaft, and a first annular groove, which is recessed in the outer peripheral surface of the governor shaft such that the first annular groove is axially displaced from the outer opening. The governor sleeve includes a port, which extends between an outer peripheral surface and an inner peripheral surface of the governor sleeve, and a second annular groove, which is recessed in the inner peripheral surface of the governor sleeve such that the second annular groove is axially displaced from the port.

摘要翻译： 燃料喷射泵的负载定时器机构包括固定到壳体的调速器轴和调节器套筒，其调节器轴线可滑动地支撑。 调速器轴包括燃料消除通道，其与泵的低压侧连通并且在调速器轴的外周表面中具有外部开口，并且第一环形槽在凹槽的外周面中 所述调速器轴使得所述第一环形槽从所述外部开口轴向移位。 调速器套筒包括在调节器套筒的外周表面和内周表面之间延伸的端口和在调节器套筒的内周表面中凹入的第二环形槽，使得第二环形槽轴向 从港口流离失所

公开(公告)号：US20030136384A1

公开(公告)日：2003-07-24

申请号：US10319584

申请日：2002-12-16

发明人： Dietmar Van Der Linden ,  Achim Koehler ,  Sascha Ambrock

IPC分类号： F02M041/00

CPC分类号： F02M63/0017 ,  F02M53/00 ,  F02M59/06 ,  F02M59/34 ,  F02M63/0001 ,  F02M63/004 ,  F02M63/0225 ,  F02M69/52 ,  F02M2200/60

摘要： A fuel injection system has a feed pump by which fuel is supplied to a high-pressure pump which pumps fuel into a reservoir as a function of engine operating parameters. The system has a fuel metering device for adjusting the fuel quantity pumped by the high-pressure pump, the metering device having an actuator controlling a regulating valve having a slide-shaped valve member guided in a cylindrical bore of a valve housing and displaceable by the actuator counter to a restoring force. An outer jacket of the valve member in cooperation with an outlet from the cylindrical bore controls a flow cross section from the feed pump to the high-pressure pump. The valve member controlls an inlet opening, originating at the feed pump and discharging into the cylindrical bore, and in one position closes the inlet opening completely.

摘要翻译： 燃料喷射系统具有供给泵，通过该供给泵将燃料供应到高压泵，其将燃料作为发动机操作参数的函数泵入储存器。 该系统具有用于调节由高压泵泵送的燃料量的燃料计量装置，所述计量装置具有控制调节阀的致动器，所述调节阀具有在阀壳体的圆柱形孔内引导的滑动形状的阀构件， 致动器抵抗恢复力。 与圆柱形孔的出口协调的阀构件的外护套控制从进料泵到高压泵的流动横截面。 阀构件控制入口开口，起始于进料泵并排入圆柱孔，并且在一个位置完全关闭入口。

公开(公告)号：US20040000291A1

公开(公告)日：2004-01-01

申请号：US10426834

申请日：2003-05-01

发明人： Hikari Tsuchiya ,  Yoshiyuki Serizawa ,  Tetsuo Ogata ,  Kazuteru Mizuno ,  Kazunori Takikawa

IPC分类号： F02M041/00

CPC分类号： F02M55/025 ,  F02M55/04 ,  F02M69/465 ,  F02M2200/315 ,  F02M2200/8084

摘要： A fuel delivery rail assembly for supplying fuel to a plurality of fuel injectors in an engine is provided. The assembly comprises an elongate conduit having a longitudinal fuel passage therein, a fuel inlet pipe, and a plurality of sockets. One wall of the conduit opposite to the socket mounting wall includes a flat or arcuate flexible absorbing surface. High-frequency noise suppressing means such as a binding member is fixed within the conduit for connecting said one wall and the socket mounting wall. The binding member is comprised of a pipe, a bar or a rigid block. The binding member may be comprised of a body portion of an extending socket terminating with said one wall. Thus, fuel pressure pulsations and shock waves are reduced by bending of the absorbing surface, and emission of high-frequency noise is eliminated.

摘要翻译： 提供了一种用于向发动机中的多个燃料喷射器供应燃料的燃料输送轨道组件。 组件包括其中具有纵向燃料通道的细长导管，燃料入口管和多个插座。 与插座安装壁相对的导管的一个壁包括平坦或弧形的柔性吸收表面。 诸如装订构件的高频噪声抑制装置固定在用于连接所述一个壁和插座安装壁的导管内。 装订构件由管，杆或刚性块组成。 装订构件可以由终止于所述一个壁的延伸插座的主体部分组成。 因此，通过吸收表面的弯曲来减少燃料压力脉动和冲击波，消除高频噪声的发射。

公开(公告)号：US20010050073A1

公开(公告)日：2001-12-13

申请号：US09755089

申请日：2001-01-08

申请人： Siemens Automotive Corporation

发明人： Scott A. Engelmeyer ,  Dean Spiers ,  John Bierstaker

IPC分类号： F02M041/00

CPC分类号： F02M69/462 ,  F02M51/06 ,  F02M55/004 ,  F02M61/16 ,  F02M61/168 ,  F02M69/465

摘要： A fuel injector with a neck at an upstream end and a downstream end located at a distal end from the upstream end, a fuel channel extending from the upstream end to the downstream end and defining a substantially longitudinal axis, and a check valve located in the fuel channel proximate the upstream end; and a fuel rail with a housing defining an opening having a substantially longitudinal axis passing therethrough, and a one-way flow inhibitor is located in the opening. When removing the fuel injector from the fuel rail, reducing leaks by biasing a plunger of the check valve against a seat of the check valve in the fuel injector and biasing a plunger of the one-way flow inhibitor against a seat of the one-way flow inhibitor in the fuel rail.

摘要翻译： 一种燃料喷射器，其具有在上游端的颈部和位于距上游端远端的下游端，燃料通道从上游端延伸到下游端并限定基本上纵向的轴线，以及止回阀，位于 靠近上游端的燃料通道; 以及具有壳体的燃料轨道，所述壳体限定具有穿过其的基本纵向轴线的开口，并且单向阻流剂位于所述开口中。 当从燃料轨移除燃料喷射器时，通过将止回阀的柱塞偏压在燃料喷射器中的止回阀的座上并将单向阻流阀的柱塞偏压在单向阀座上来减少泄漏 燃油轨道中的阻流剂。

公开(公告)号：US20010010216A1

公开(公告)日：2001-08-02

申请号：US09767466

申请日：2001-01-23

发明人： Masayoshi Usui ,  Kikuo Asada

IPC分类号： F02M041/00

CPC分类号： F02M55/005 ,  F02M55/025

摘要： There is provided a common rail for a diesel engine in which fatigue strength against inner pressure is increased by reducing the difference in hardness or elongation between a steel surface and a nonmetal inclusion on the inner surface of, or in the surface layer of, a rail and lowering the degree of concentration of fatigue stress. The common rail includes a main pipe rail having a circulating passage extending in its inside in the axial direction thereof, branch holes formed in an axial peripheral wall portion of the main pipe rail, and branch connectors connected to the respective branch holes integrally or via separate connecting members, and a Ni-diffused fatigue strength reinforcing layer which is formed by heating a Ni layer plated in advance is formed on at least a portion of an inner circumferential surface of the common rail. The increased strength and the action of the fatigue strength reinforcing layer lowers the degree of fatigue concentration to increase fatigue strength against inner pressure. Consequently, the common rail serves the superior advantage of being capable of performing reliable and stable functions with superior durability and without leakage of fuel due to occurrence of cracks.

摘要翻译： 提供了一种用于柴油发动机的共轨，其中通过减少轨道的内表面或其表面层中的钢表面和非金属夹杂物之间的硬度或伸长率的差异来增加内压的疲劳强度 并降低疲劳应力集中度。 共轨包括：主管道，其具有沿其轴向在其内部延伸的循环通道，形成在主管轨的轴向周壁部分中的分支孔和分别连接到各个分支孔的分支连接器， 在共轨的内周面的至少一部分上形成有通过预先镀上镀Ni层而形成的Ni扩散疲劳强度增强层。 疲劳强度增强层的强度提高和作用降低了疲劳强度，提高了内压的疲劳强度。 因此，共轨具有能够以优异的耐久性进行可靠且稳定的功能，并且由于发生裂纹而不会泄漏燃料的优点。

公开(公告)号：US20010032620A1

公开(公告)日：2001-10-25

申请号：US09730040

申请日：2000-12-05

发明人： Ronald Michael Bundock ,  Ray Biggs

IPC分类号： F02M041/00

CPC分类号： F02M65/001

摘要： Monitoring equipment for monitoring the performance of an engine fuel injector valve. A source of pressurized fluid and an injector valve head are provided with connection means to enable an injector valve to be connected thereto, the head being connected to the said source so that pressurized fluid from the said source is delivered to the injector valve when the equipment is in use. Regulator means of the equipment compensate for changes in pressure of the fluid at the head owing to pulsed operation of the injector valve when the equipment is in use, as well as to enable a change in pressure to be effected and maintained at the head. Flow monitoring means are arranged in the fluid path between the said source and the head to monitor the flow of fluid to the head. The source of pressurized fluid is such as to maintain a level of pressure in excess of a desired operating pressure. The regulator means comprises fluid flow control means coupled to a pressure sensor, which is in or near the test head to provide an indication of the pressure therein so that the flow control means effects an increase or a decrease to flow of fluid through the said fluid path to maintain the pressure of the fluid at the head substantially at the desired operating pressure.

摘要翻译： 用于监控发动机燃油喷射阀性能的监控设备。 加压流体源和喷射器阀头设置有连接装置，以使得喷射器阀能够连接到其上，头部连接到所述源，使得来自所述源的加压流体被输送到喷射器阀，当设备 正在使用 该设备的调节装置补偿由于喷射阀在使用中的脉冲操作而导致的头部流体的压力变化，并且能够改变在头部进行和保持的压力。 流量监测装置设置在所述源和头之间的流体路径中，以监测流到头部的流体流动。 加压流体的来源是保持超过所需工作压力的压力水平。 调节器装置包括流体流动控制装置，其耦合到压力传感器，该压力传感器位于或靠近测试头以提供其中的压力的​​指示，使得流量控制装置实现通过所述流体的流体的流动的增加或减少 以保持头部处的流体的压力基本上处于期望的操作压力。

公开(公告)号：US20010025626A1

公开(公告)日：2001-10-04

申请号：US09761744

申请日：2001-01-18

发明人： Pierpaolo Antonioli ,  Sara Sottano ,  Cristiana Davide ,  Massimo Osella

IPC分类号： F02M001/00 ,  F02M041/00

CPC分类号： F02D41/3836 ,  F02D41/221 ,  F02D2041/224 ,  F02D2200/0602

摘要： A method of assessing operation of a common-rail injection system of an internal combustion engine; the injection system having a number of injectors, a high-pressure circuit supplying high-pressure fuel to the injectors, and a low-pressure circuit supplying fuel to the high-pressure circuit; and the method including the steps of hydraulically isolating the high-pressure circuit from the low-pressure circuit and the engine; and assessing operation of the injection system as a function of the fuel pressure drop in the high-pressure circuit.

摘要翻译： 一种评估内燃机的共轨喷射系统的操作的方法; 所述喷射系统具有多个喷射器，向所述喷射器供应高压燃料的高压回路以及向所述高压回路供给燃料的低压回路; 该方法包括从低压回路和发动机液压隔离高压回路的步骤; 以及评估作为高压回路中的燃料压降的函数的喷射系统的操作。

公开(公告)号：US20010023684A1

公开(公告)日：2001-09-27

申请号：US09814872

申请日：2001-03-23

发明人： Takayuki Demura ,  Hiroyuki Mizuno ,  Koichi Yonezawa

IPC分类号： F02M041/00 ,  F02M001/00

CPC分类号： F02D41/3845 ,  F02D41/1482 ,  F02D2041/1409 ,  F02D2041/1422 ,  F02D2250/31

摘要： A fuel pressure control apparatus and method controls a pressure of fuel that is delivered from a fuel pump to a fuel pipe in an internal combustion engine of a vehicle. A controller of the fuel pressure control apparatus calculates a controlled variable based on at least an integral term that is updated in accordance with a difference between an actual fuel pressure in the fuel pipe and a target value thereof; and controls an amount of the fuel delivered from the fuel pump in a feedback manner, using the controlled variable, so that the actual fuel pressure approaches the target value. During the control of the fuel pressure, the controller inhibits updating of the integral term to a value that results in an increase in the amount of the fuel delivered from the fuel pump, when the amount of the fuel delivered is approximate to or equal to a maximum value thereof.

摘要翻译： 燃料压力控制装置和方法控制从燃料泵输送到车辆的内燃机中的燃料管的燃料的压力。 燃料压力控制装置的控制器基于至少一个根据燃料管道中的实际燃料压力与其目标值之间的差异更新的积分项来计算控制变量; 并且使用所述受控变量来控制从所述燃料泵输送的燃料的量，以使得所述实际燃料压力接近所述目标值。 在燃料压力的控制期间，当所输送的燃料量近似等于或等于一个时，控制器禁止将积分项更新为导致从燃料泵输送的燃料量增加的值 最大值。