Fuel injection valve for an internal combustion engine
    1.
    发明授权
    Fuel injection valve for an internal combustion engine 失效
    内燃机用燃油喷射阀

    公开(公告)号:US4417693A

    公开(公告)日:1983-11-29

    申请号:US373000

    申请日:1982-04-29

    摘要: To provide for coupling the injection needle of a Diesel injection valve with an inertia mass, and thereby provide for speed damping of the movement of the valve, the pressurized Diesel fuel is applied to a chamber (20,68) in the valve body (10,12,14), which slidably retains the needle valve element (18) at a location downstream of the inertia mass, the inertia mass subdividing the chamber into a spring or pressure chamber (20) and a damping chamber (68) forming a dead, or storage chamber for fuel, the inertia mass being slidable in the second chamber and the clearance between the inertia mass and the walls of the chamber forming a throttled connection duct so that, upon command to opening movement, the needle valve element will engage, after a short dead distance (v), the inertia mass (62) which must move against the flow resistance through the throttled connection upon shifting of fuel between the first and second chamber and thus damping the speed of operation of the valve element. The pressure differential at the two sides of the inertia mass will act on the entire cross-sectional area of the inertia mass, to provide high initial damping of the valve needle movement upon initiation of an opening stroke, while permitting a slim construction minimizing external diameter.

    摘要翻译: 为了提供将具有惯性质量的柴油喷射阀的注射针联接,从而提供阀的运动的速度阻尼,加压柴油燃料被施加到阀体(10)中的腔室(20,68) ,12,14),其将针阀元件(18)可滑动地保持在惯性质量下游的位置处,惯性质量将腔室细分成弹簧或压力室(20)和形成死区的阻尼室(68) 或用于燃料的储存室,所述惯性质量可在所述第二室中滑动,并且所述惯性物质与所述室的壁之间的间隙形成节流的连接管道,使得在打开运动的命令时,所述针阀元件将接合, 在短的死距离(v)之后,惯性质量(62),其在第一和第二室之间的燃料移动时必须抵抗通过节流连接的流动阻力而移动,并因此阻尼阀元件的操作速度。 惯性质量两侧的压力差将作用于惯性质量的整个横截面积,以便在打开行程开始时提供阀针运动的高初始阻尼,同时允许减小外径的细长结构 。

    Fuel injection pump for internal combustion engines
    2.
    发明授权
    Fuel injection pump for internal combustion engines 失效
    燃油喷射泵用于内燃机

    公开(公告)号:US5086742A

    公开(公告)日:1992-02-11

    申请号:US726112

    申请日:1991-06-21

    摘要: For the sake of improving quiet operation during idling and at low partial load by lengthening the injection duration, a fuel injection pump for internal combustion engines has a relief conduit originating in a pump work chamber, the relief conduit including a throttle and being blockable at upper partial load, full load and openable by a control slide. The relief conduit is controlled by a pressure maintenance valve, the opening pressure of which can be adapted from outside to the opening pressure of injection nozzles. The control slide is controlled by a centrifugal governor in such a manner that at idling and lower partial load. The control slide is shifted by the pressure in a fuel low-pressure chamber into its operating position that uncovers the relief conduit, and at upper partial load, full load and starting, the control slide is disconnected from the low-pressure chamber, so that it can drop back into its basic position that blocks off the relief conduit.

    摘要翻译: 为了通过延长注射持续时间来改善怠速和低部分负荷期间的静音操作,用于内燃机的燃料喷射泵具有源自泵工作室的释放导管,该释放导管包括节气门并可在上部阻塞 部分负载,满载并可由控制滑块打开。 泄压管由压力维持阀控制,压力维持阀的开启压力可以从外部喷射到喷嘴的打开压力。 控制滑块由离心调速器以空转和较低部分负载的方式控制。 控制滑块通过燃料低压室中的压力移动到其露出释放导管的操作位置,并且在上部分负载满载和启动时,控制滑块与低压室断开,使得 它可以回到其基本位置,从而阻止卸压管道。

    Fuel injection system
    4.
    发明授权
    Fuel injection system 失效
    燃油喷射系统

    公开(公告)号:US4213434A

    公开(公告)日:1980-07-22

    申请号:US952353

    申请日:1978-10-18

    CPC分类号: F02M61/205 F02M55/002

    摘要: The invention relates to a fuel injection system provided with a pump and at least one nozzle, in which the fuel quantity which collects by leakage in the spring chamber of the nozzle for the purpose of limiting the speed of the needle as it opens flows out through a throttle valve in a controlled manner. The throttle valve is controlled in accordance with engine characteristics.

    摘要翻译: 本发明涉及一种具有泵和至少一个喷嘴的燃料喷射系统,其中通过在喷嘴的弹簧室中泄漏而收集的燃料量用于限制打开的针头的速度流过 节流阀以受控的方式。 节流阀根据发动机特性进行控制。

    Apparatus for controlling the operating mixture composition in internal
combustion engines
    5.
    发明授权
    Apparatus for controlling the operating mixture composition in internal combustion engines 失效
    用于控制内燃机中的操作混合物组成的装置

    公开(公告)号:US4368710A

    公开(公告)日:1983-01-18

    申请号:US203750

    申请日:1980-11-03

    CPC分类号: F02M37/0029 F02M26/62

    摘要: An apparatus is proposed for controlling the composition of the operating mixture in internal combustion engines. In this apparatus, a control of the air quantity is effected in accordance with the arbitrarily adjustable fuel quantity by throttling the air intake cross section and by remnant filling of the combustion chambers of the engine by means of recirculated exhaust gas. On the basis of the comparison of the aspirated air quantity with the injected fuel quantity by means of a differential pressure valve, a control pressure building up at a fixed throttle in a discharge line controlled by the differential pressure valve is generated as a control variable for an actuation device of the air throttle valve or for the exhaust recirculation valve in an exhaust recirculation line. On cold starting and warm-up of the engine, a substantially larger fuel quantity is simulated by the diversion of a portion of the compared fuel quantity, and thus a high control pressure is very rapidly attained, with the aid of which the fuel intake cross section is fully opened and the cross section of the exhaust recirculation line is completely closed. This diversion of the fuel is also effected, for instance at full load, whenever the intention is reliable prevention of exhaust recirculation.

    摘要翻译: 提出了一种用于控制内燃机中的操作混合物的组成的装置。 在该装置中,通过节流进气横截面和通过再循环废气对发动机的燃烧室的残留填充,可以根据任意调节的燃料量进行空气量的控制。 基于通过差压阀将吸入空气量与喷射燃料量进行比较的基础,在由压差阀控制的排出管线中以固定节流阀形成的控制压力作为控制变量,作为 排气再循环管路中的空气节流阀或废气再循环阀的致动装置。 在发动机的冷启动和预热时,通过部分比较的燃料量的转移来模拟实质上更大的燃料量,从而非常快速地获得高的控制压力,借助于此,燃料进入量越过 截面完全打开,排气再循环管线的横截面完全关闭。 燃料的这种转移也可以在例如满载时进行,无论何时可靠地防止排气再循环。

    Fuel injection nozzle for internal combustion engines
    6.
    发明授权
    Fuel injection nozzle for internal combustion engines 失效
    内燃机燃油喷嘴

    公开(公告)号:US4516729A

    公开(公告)日:1985-05-14

    申请号:US421195

    申请日:1982-09-22

    CPC分类号: F02M45/12 F02M45/08 F02M61/08

    摘要: A fuel injection nozzle for internal combustion engines having a valve needle which enters an intermediate position in a retarded fashion and subsequently reaches its final position quickly. The valve needle is coupled in a positively-engaged manner with a supplementary body which as a result of its mass and/or hydraulically damps the movement of the valve needle over the course of a first stroke portion. At the end of this stroke portion, the supplementary body strikes a shoulder attached to the housing, whereupon the valve needle after the attainment of a notably higher fuel pressure, is separated from the supplementary body and translated quickly into its open position. In special cases, it is also possible for two supplementary bodies to be provided, which are uncoupled one after another from the valve needle and then again recoupled to the valve upon the closure of the valve. With an apparatus of this kind, the injection procedure can be adapted more freely than in the case of the known injection nozzles to a desired course.

    摘要翻译: 一种用于内燃机的燃料喷射喷嘴,其具有以更迟的方式进入中间位置并随后快速到达其最终位置的阀针。 阀针以正向接合的方式与辅助体联接,辅助体由于其质量和/或液压地阻止阀针在第一冲程部分的运动过程中的运动。 在该行程部分的末端,补充体撞击附接到壳体的肩部,由此获得显着较高的燃料压力之后的阀针与补充体分离并迅速转换到其打开位置。 在特殊情况下,也可以提供两个辅助体,这两个辅助体从阀针一个接一个地分离,然后在阀闭合时再次重新连接到阀上。 使用这种装置,与已知的喷嘴的情况相比,注射程序可以更自由地适应于期望的过程。