Fuel injection pump
    1.
    发明授权
    Fuel injection pump 失效
    燃油喷射泵

    公开(公告)号:US4538580A

    公开(公告)日:1985-09-03

    申请号:US543660

    申请日:1983-10-19

    CPC分类号: F02M41/063 F02M59/366

    摘要: A fuel injection pump for internal combustion engines in which by means of an obliquely extending control groove on the jacket face of a distributor, the end of injection can be varied by opening a relief conduit during the displacement of the distributor. The injection onset is made to follow this variable end of injection by providing that the stroke position of the pump pistons of the fuel injection pump is ascertained at the end of injection by a transducer, by means of which at the same time a metering duration of a magnetic valve that has already been opened at the time of the end of the injection stroke is controlled. In this manner, with a radial piston pump so embodied, the opportunity is afforded of accurately adjusting the quantity of fuel to be metered by means of a magnetic valve, even with variable injection times. All that needs to be done is that the magnetic valve be closed exactly and rapidly at the end of metering, while an error in opening on the part of the magnetic valve does not occur. In this manner, a very precise metering of the fuel to be injected is attained with simple means.

    摘要翻译: 一种用于内燃机的燃料喷射泵,其中通过在分配器的护套面上的倾斜延伸的控制槽,可以通过在分配器移位期间打开释放导管来改变喷射端。 通过提供在注射结束时确定燃料喷射泵的泵活塞的冲程位置,通过换能器来确定注射开始跟随该可变的注射端,同时通过该换能器的计量持续时间 控制在注射冲程结束时已经打开的电磁阀。 以这种方式,通过如此体现的径向活塞泵,即使具有可变的喷射时间,也可以通过电磁阀精确地调节待计量的燃料的量。 所有这些都需要做的是在计量结束时,电磁阀被精确而快速地关闭,而不会发生磁阀部分的打开错误。 以这种方式,通过简单的方法可以获得要注入的燃料的非常精确的计量。

    Fuel injection apparatus for internal combustion engines, in particular
for diesel engines
    2.
    发明授权
    Fuel injection apparatus for internal combustion engines, in particular for diesel engines 失效
    用于内燃机的燃料喷射装置,特别是柴油发动机

    公开(公告)号:US4387686A

    公开(公告)日:1983-06-14

    申请号:US223954

    申请日:1981-01-27

    IPC分类号: F02B3/06 F02M59/36 F02M41/02

    CPC分类号: F02M59/365 F02M59/36 F02B3/06

    摘要: A fuel injection apparatus (FIG. 1) for internal combustion engines is proposed, in which the onset and end of injection are determined by means of a hydraulically actuated control slide. The injection pumps of the apparatus, preferably combined with an injection nozzle to make a pump/nozzle unit, have a central control fuel source represented by a supply pump and a first pressure limitation valve, which generates a control pressure (p.sub.S) actuating the control slide which is several times greater than the supply pressure (p.sub.V) determined by a second pressure limitation valve. In order to initiate the onset of injection, the control slide is placed under control pressure (p.sub.S) by a valve assembly via a distributor apparatus and closes an overflow channel leading out of the pump work chamber. In order to control the end of injection, the control slide during its return stroke again relieves this overflow channel toward a low-pressure line. The control pressure (p.sub.S) in the control pressure line required for actuating the stroke movement of the control slide is established by means of blocking the outflow out of this line by means of the valve assembly.

    摘要翻译: 提出了一种用于内燃机的燃料喷射装置(图1),其中喷射的开始和结束通过液压致动的控制滑块来确定。 设备的注射泵优选地与注射喷嘴组合以制造泵/喷嘴单元,具有由供应泵和第一压力限制阀表示的中央控制燃料源,其产生致动控制器的控制压力(pS) 滑动比由第二压力限制阀确定的供给压力(pV)大几倍。 为了启动喷射开始,控制滑块经由分配器装置通过阀组件置于控制压力(pS)下,并且关闭从泵工作室引出的溢流通道。 为了控制注射的结束,控制滑块在其返回行程中再次将该溢流通道朝向低压管线释放。 通过借助于阀组件将流出物从该管路阻断出来,来建立用于致动控制滑块的行程运动所需的控制压力线中的控制压力(pS)。

    Fuel injection apparatus for internal combustion engines, in particular
for diesel engines
    3.
    发明授权
    Fuel injection apparatus for internal combustion engines, in particular for diesel engines 失效
    用于内燃机的燃料喷射装置,特别是柴油发动机

    公开(公告)号:US4398518A

    公开(公告)日:1983-08-16

    申请号:US223889

    申请日:1981-01-27

    CPC分类号: F02M59/366 F02B3/06

    摘要: A fuel injection apparatus for internal combustion engines is proposed (FIG. 1), in which the onset and end of injection are determined by a hydraulically actuated control slide. The injection pumps of the apparatus, which are preferably combined with an injection nozzle to make a pump/nozzle unit, having a central magnetic valve assembly comprising two magnetic valves switched hydraulically in parallel, which valve assembly is inserted in a connection between a control pressure line, which can be placed under control pressure (P.sub.S) from a source of control fuel, and a low-pressure line which is under supply pressure (P.sub.V). In order to initiate the onset of injection, the control slide is placed under control pressure (P.sub.S) by the valve assembly via a distributor apparatus and closes an overflow channel leading out of the pump work chamber. In order to control the end of the injection, the control slide, during its return stroke, relieves this overflow channel toward a low-pressure line. The control pressure (P.sub.S) in the control pressure line required for actuation of the stroke movement of the control slide is built up by means of the valve assembly as a result of blocking the outflow from this line.

    摘要翻译: 提出了一种用于内燃机的燃料喷射装置(图1),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制造泵/喷嘴单元,其具有中心电磁阀组件,该中心电磁阀组件包括两个并联地液压地切换的电磁阀,该阀组件插入控制压力 线路,其可以被放置在来自控制燃料源的控制压力(PS)下,以及处于供给压力(PV)的低压管线。 为了启动喷射开始,控制滑块通过分配器装置由阀组件置于控制压力(PS)下,并且关闭从泵工作室引出的溢流通道。 为了控制喷射的结束,控制滑块在其返回行程期间将该溢流通道减轻到低压管线。 控制滑块的行程运动所需的控制压力线中的控制压力(PS)由于阀组件的阻塞而产生流出。

    Fuel injection apparatus for internal combustion engines
    4.
    发明授权
    Fuel injection apparatus for internal combustion engines 失效
    内燃机燃油喷射装置

    公开(公告)号:US4655184A

    公开(公告)日:1987-04-07

    申请号:US382002

    申请日:1982-05-25

    摘要: A fuel injection apparatus for internal combustion engines in which beyond a predetermined remaining stroke during the supply stroke of the pump piston, a relief conduit is opened via a control edge. The same control edge closes the relief conduit once again during the intake stroke. During the subsequent effective intake stroke, the quantity of fuel to be injected upon the following compression stroke is metered by means of the electrically actuatable valve. The magnetic valve here is already opened before the closure of the relief conduit by the control edge, so that in the opening phase of the relief conduit, the pump work chamber of the fuel injection apparatus is flushed. In this manner, precise metering of the quantity of fuel to be injected is attained.

    摘要翻译: 一种用于内燃机的燃料喷射装置,其中在泵活塞的供给冲程期间超过预定的剩余行程,经由控制边缘打开释放导管。 在进气冲程期间,相同的控制边缘再次关闭卸压管道。 在随后的有效进气冲程期间,通过电致动阀计量在随后的压缩冲程中喷射的燃料量。 这里的电磁阀在通过控制边缘封闭释放导管之前已经打开,使得在释放导管的开启阶段,喷射装置的泵工作室被冲洗。 以这种方式,可以精确计量待喷射的燃料量。

    Method and apparatus for fuel injection in internal combustion engines
in particular diesel engines
    5.
    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 apparatus for internal combustion engines
    6.
    发明授权
    Fuel injection apparatus for internal combustion engines 失效
    内燃机燃油喷射装置

    公开(公告)号:US5295470A

    公开(公告)日:1994-03-22

    申请号:US031305

    申请日:1993-03-12

    申请人: Max Straubel

    发明人: Max Straubel

    摘要: A fuel injection apparatus for internal combustion engines, which includes a pump piston guided in a cylinder bore driven to reciprocate axially by a cam drive. With a face end, the pump piston defines a pump work chamber, which communicates with an injection valve via a pressure conduit and which is supplied with fuel and relieved via a fuel line. Supply onset and supply end are controllable via a feed pump and a magnet valve are disposed in the fuel line, which communicates with a fuel supply vessel (33) to control supply onset and end of supply. In order to relieve a pressure of the high-pressure chambers, especially at high engine speeds, a fuel tapping device, which is controllable as a function of pressure is connected to a relief line that branches off from the fuel line.

    摘要翻译: 一种用于内燃机的燃料喷射装置,其包括被驱动以由凸轮驱动器轴向往复运动的气缸孔中引导的泵活塞。 通过面端,泵活塞限定了泵工作室,该泵工作室经由压力导管与喷射阀连通,并经过燃料管路供给燃料并释放。 供应起始和供应端可通过进料泵进行控制,并且电磁阀设置在燃料管线中,该燃料管线与燃料供应容器(33)连通以控制供应开始和供应结束。 为了减轻高压室的压力,特别是在高发动机速度下,作为压力的函数可控的燃料分流装置连接到从燃料管路分支的救生线。

    Fuel injection pump for internal combustion engines
    7.
    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:US5220894A

    公开(公告)日:1993-06-22

    申请号:US700125

    申请日:1991-05-28

    申请人: Max Straubel

    发明人: Max Straubel

    IPC分类号: F02M59/36 F02M41/12 F02M59/38

    摘要: A fuel injection pump for internal combustion engines for controlling the fuel quantity with an electric closed-loop control device, which controls an electric positioner, which in turn actuates an element that determines the fuel injection quantity per pump piston supply stroke. The supply of fuel to the pump work chamber is effected via a fuel supply line, in which an adjustable throttle is disposed. The throttle is actuated in accordance with the position of a gas pedal, but it controls an increasingly larger through cross section of the fuel supply line than would correspond to the fuel metering by the closed-loop control device. A minimum through cross section is defined by a fixed throttle. With this apparatus, emergency operation if the electric control system for the fuel injection quantity fails can be attained, without the apparatus for emergency operation interfering with fuel metering by the closed-loop control device. In particular, the fixed throttle prevents racing of the engine counter to the intentions of the driver in the event that the closed-loop control system fails.

    摘要翻译: PCT No.PCT / DE90 / 00801 Sec。 371日期1991年5月28日 102(e)日期1991年5月28日PCT提交1990年10月24日PCT公布。 出版物WO91 / 07585 日期1991年5月30日。一种用于通过电动闭环控制装置控制燃料量的内燃机的燃料喷射泵,其控制电动定位器,该定位器又致动确定每个泵活塞供应的燃料喷射量的元件 行程。 向泵工作室供应燃料经由其中设置有可调节节流阀的燃料供应管线来实现。 节气门根据油门踏板的位置而被致动,但是它控制着燃料供应管线的越过越过越过越过越来越大的通过闭环控制装置的燃料计量的横截面。 最小横截面由固定节流阀定义。 利用该装置,如果能够实现用于燃料喷射量的电气控制系统的故障的紧急操作,则没有用于紧急操作的装置干扰闭环控制装置的燃料计量。 特别地,在闭环控制系统发生故障的情况下,固定节气门防止发动机与赛车的意图相反。

    Fuel injection nozzle for internal combustion engines
    8.
    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:US4768719A

    公开(公告)日:1988-09-06

    申请号:US90152

    申请日:1987-07-17

    CPC分类号: F02M45/083 F02M2200/8015

    摘要: Fuel injection nozzle for internal combustion engines includes a first closing spring which acts continuously on the valve needle by means of a central pressure pin and, in addition, a second closing spring which acts continuously on the valve needle by means of a pressure piece after covering the distance of an initial stroke. The pressure piece is supported at the nozzle body by means of an intermediate bush during the initial stroke. The initial stroke is limited by means of the shoulders at the valve needle and the intermediate bush, whereas the total stroke is limited by means of the shoulders at the intermediate bush and the intermediate disk. Accordingly, the initial stroke can be adjusted very accurately to a desired magnitude merely by means of grinding the valve needle and does not change during the assembly of the injection nozzle.

    摘要翻译: PCT No.PCT / DE86 / 00453 Sec。 371日期1987年7月17日 102(e)日期1987年7月17日PCT申请日1986年11月7日PCT公布。 公开号WO87 / 03339 1987年6月4日。用于内燃机的燃料喷射喷嘴包括第一闭合弹簧,其通过中心压力销连续作用在阀针上,并且还包括第二闭合弹簧,其通过 在覆盖初始冲程的距离之后的压块的装置。 在初始冲程期间,压片通过中间衬套在喷嘴体处被支撑。 初始行程通过在阀针和中间衬套处的肩部受到限制,而总行程通过中间衬套和中间盘的肩部受到限制。 因此,仅通过研磨阀针就可以非常准确地将初始行程调整到所希望的大小,并且在注射喷嘴的组装期间不改变。

    Fuel injection pump for internal combustion engines
    9.
    发明授权
    Fuel injection pump for internal combustion engines 失效
    内燃机燃油喷射泵

    公开(公告)号:US4535742A

    公开(公告)日:1985-08-20

    申请号:US595189

    申请日:1984-03-30

    摘要: A fuel injection pump for internal combustion engines, in which beyond a predetermined remnant stroke during the supply stroke of the pump piston a relief conduit is opened via a first control edge and the remaining fuel pumped by the pump piston is pumped into a reservoir connected there. During the subsequent intake stroke, the diverted fuel is pumped back into the pump work chamber of the pump piston, until the first control edge again closes the relief conduit. During the subsequent intake stroke of the pump piston, in particular at the bottom dead center position of the pump piston, the relief conduit to the reservoir is once again opened by a second control edge, and then a complete relief of the reservoir is attained. It is during this phase that the metering of the fuel to be injected during the next supply stroke of the pump piston also takes place, via a magnetic valve. With an apparatus of this kind, it is advantageous that the fuel quantity per supply stroke of the pump piston that is actually to be injected can be metered exactly by means of a magnetic valve under pressure conditions that remain constant despite variable opening times.

    摘要翻译: 一种用于内燃机的燃料喷射泵,其中在泵活塞的供给冲程期间超过预定的剩余行程,释放管经由第一控制边缘打开,并且由泵活塞泵送的剩余燃料被泵入与其连接的储存器 。 在随后的进气冲程期间,转向的燃料被泵送回泵活塞的泵工作室,直到第一控制边缘再次关闭释放管道。 在泵活塞的随后的进气冲程期间,特别是在泵活塞的下死点位置,通过第二控制边缘再次打开到储油器的排放管,然后获得储存器的完全释放。 正是在这个阶段,在泵活塞的下一次供给冲程期间,通过电磁阀进行喷射的燃料计量。 使用这种装置,有利的是,实际上要注射的泵活塞的每供应冲程的燃料量可以通过电磁阀精确地在压力条件下计量,压力条件尽管可变的打开时间保持恒定。

    Device for adjusting the full-load injection quantity of a fuel
injection pump for internal combustion engines
    10.
    发明授权
    Device for adjusting the full-load injection quantity of a fuel injection pump for internal combustion engines 失效
    用于调节用于内燃机的燃油喷射泵的全负荷喷射量的装置

    公开(公告)号:US4512308A

    公开(公告)日:1985-04-23

    申请号:US425816

    申请日:1982-09-28

    摘要: A fuel injection pump in which the quantity adjustment member has a travel limitation in the form of an adjustable stop, which is adjusted in accordance with the displacement of an adjusting piston in accordance with a contour defined on the adjusting piston. The displacement of the adjusting piston is effected with the rpm-dependent pressure of the suction chamber of the fuel injection pump, and the work chamber preceding the adjusting piston can be uncoupled from the suction chamber via a throttle. The maximum displacement of the adjusting piston is limited by a stop which is adjustable in accordance with charge pressure or by a pressure control device by means of which the pressure in the work chamber can be adjusted or limited.

    摘要翻译: 一种燃料喷射泵,其中所述量调节构件具有可调止动件形式的行程限制,所述行程限制根据调节活塞根据调节活塞上限定的轮廓的位移而被调整。 调节活塞的位移是通过燃料喷射泵的吸入室的与转速相关的压力来实现的,并且调节活塞之前的工作室可以经由节气门与吸入室分离。 调节活塞的最大排量由可根据加压压力调节的停止或通过压力控制装置进行限制,通过该压力控制装置可以调节或限制工作室中的压力。