Fuel injection apparatus for internal combustion engines, in particular
diesel engines
    1.
    发明授权
    Fuel injection apparatus for internal combustion engines, in particular diesel engines 失效
    用于内燃机,特别是柴油发动机的燃油喷射装置

    公开(公告)号:US4465049A

    公开(公告)日:1984-08-14

    申请号:US223953

    申请日:1981-01-12

    摘要: A fuel injection apparatus for internal combustion engines, in which the onset and end of injection are determined by a hydraulically actuated control slide. The injection pump of the apparatus, which is preferably combined with an injection nozzle to form a pump/nozzle unit, has a pump piston embodied as a differential piston, whose section having the larger diameter serves as an auxiliary pump piston and generates a control pressure (p.sub.S) actuating the control slide. During its compression stroke the control slide, in order to initiate the onset of injection, closes an overflow line leading out of the pump work chamber; and during its return stroke, which is effected by the pressure drop in the control line, the control slide relieves the overflow line in order to control the end of injection. The control pressure (p.sub.S) in the control line necessary for actuating the stroke movement of the control slide is controlled by the closure of this line by means of a control device and is built up during the compression stroke of the auxiliary pump piston.

    摘要翻译: 一种用于内燃机的燃料喷射装置,其中喷射的开始和结束由液压致动的控制滑块确定。 装置的注射泵优选地与注射喷嘴组合以形成泵/喷嘴单元,具有实施为差动活塞的泵活塞,其具有较大直径的部分用作辅助泵活塞并产生控制压力 (pS)启动控制滑块。 在压缩冲程期间,为了启动喷射开始,控制滑块关闭从泵工作室引出的溢流管线; 并且在其由控制线中的压降影响的返回行程期间,控制滑块减轻溢流线,以便控制喷射结束。 用于致动控制滑块的行程运动所需的控制线中的控制压力(pS)通过控制装置关闭该管线来控制,并且在辅助泵活塞的压缩行程期间被建立。

    Method and apparatus for fuel injection in internal combustion engines
in particular diesel engines
    2.
    发明授权
    Method and apparatus for fuel injection in internal combustion engines in particular diesel engines 失效
    内燃机特别是柴油发动机燃油喷射的方法和装置

    公开(公告)号:US4378775A

    公开(公告)日:1983-04-05

    申请号:US277426

    申请日:1981-06-25

    摘要: In the method according to the invention, the inlet pressure and the inlet cross section of the fuel pre-stored in the pump work chamber is constant, and it is solely the opening duration of an inlet valve which is electrically regulated. In addition, a shift in the instant of supply onset controlled in accordance with operating characteristics is attained by means of a variation in the return-flow fuel quantity. A shift in the instant of supply onset, which is undesired when there is a change in the quantity of fuel to be injected, is prevented by means of a simultaneously-effected correction of the return-flow fuel quantity. A fuel injection apparatus suitable for performing the method has, as the inlet valve, a magnetic valve which determines the quantity of fuel pre-stored in the pump work chamber. The rotary position of the pump piston is variable in order to shift or correct the instant of supply onset by means of an adjacent device actuated by an electromechanical adjustment element. An electric control device emitting the metering pulse and a control pulse is connected with a set-point transducer and an adjustment-path transducer of the adjustment device. The apparatus can be equipped with either a pump/nozzle or a normal piston injection pump supplying the injection nozzle via a pressure line, or with a distributor injection pump.

    摘要翻译: 在根据本发明的方法中,预先存储在泵工作室中的燃料的入口压力和入口横截面是恒定的,并且仅仅是电气调节的入口阀的打开持续时间。 此外,通过返回流量燃料量的变化来实现根据操作特性控制的供给开始时刻的变化。 通过同时进行的返回流量燃料量的校正来防止在待喷射燃料量发生变化时不期望的供应开始瞬间的变化。 适于执行该方法的燃料喷射装置具有作为入口阀的确定预先存储在泵工作室中的燃料量的电磁阀。 泵活塞的旋转位置是可变的,以便通过由机电调节元件致动的相邻装置移动或校正供给开始的时刻。 发射计量脉冲和控制脉冲的电气控制装置与调节装置的设定点换能器和调节路径换能器连接。 该装置可以配备有通过压力管线或分配器注射泵供应喷嘴的泵/喷嘴或普通活塞注射泵。

    Fuel injection nozzle for internal combustion engines
    3.
    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。

    Fuel injection valve for an internal combustion engine
    4.
    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 。

    Method for permanently connecting discrete structural parts
    5.
    发明授权
    Method for permanently connecting discrete structural parts 失效
    永久连接离散结构件的方法

    公开(公告)号:US4491557A

    公开(公告)日:1985-01-01

    申请号:US522644

    申请日:1983-08-11

    摘要: In a method for undetachably interconnecting discrete structural parts by means of a connecting or bonding material, the structural parts which are to be interconnected are arranged in an aligned manner in a hollow mold, and the interspaces between the hollow mold and the structural parts are filled with a sinterable metal powder. After the arrangement is heated to the sintering temperature of the metal powder, a sintered body results with at least partially embedded, rigidly interconnected structural parts, due to a diffusion bonding. Heat exchanger blocks may especially be produced according to such a method in a simple manner, without requiring that the separate structural parts must be pre-machined for an exact shape accuracy.

    摘要翻译: 在通过连接或接合材料不可分离地连接离散的结构部件的方法中,要互连的结构部件以对准的方式布置在中空模具中,并且中空模具和结构部件之间的间隙被填充 用可烧结的金属粉末。 在将配置加热到金属粉末的烧结温度之后,由于扩散结合,烧结体具有至少部分嵌入的刚性互连的结构部件。 根据这种方法可以以简单的方式特别地制造热交换器块,而不需要分离的结构部件必须预先加工成准确的形状精度。

    Fuel injection arrangement
    8.
    发明授权
    Fuel injection arrangement 失效
    燃油喷射装置

    公开(公告)号:US4432228A

    公开(公告)日:1984-02-21

    申请号:US338566

    申请日:1982-01-11

    摘要: A fuel injection arrangement for an internal combustion engine, has a control device for receiving an electrical signal corresponding to a quantity of applied fuel, comparing an actual value with a nominal value of the supplied fuel quantity, and producing a correcting signal for fuel supply, and also has a measuring element for measuring the quantity of the supplied fuel and producing the responding electrical signal, wherein the measuring element includes a quartz pressure measuring diaphragm producing the electrical signal by a piezoelectric effect on quartz because of a differential pressure on the measuring diaphragm.

    摘要翻译: 一种用于内燃机的燃料喷射装置,具有控制装置,用于接收对应于所施加燃料量的电信号,将实际值与供给的燃料量的标称值进行比较,并产生用于燃料供给的校正信号, 并且还具有用于测量供应燃料量并产生响应电信号的测量元件,其中测量元件包括石英压力测量膜,其由于测量膜上的压差而由石英上的压电效应产生电信号 。