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    • 5. 发明授权
    • Fuel injection pump for internal combustion engines
    • 内燃机燃油喷射泵
    • US4535742A
    • 1985-08-20
    • US595189
    • 1984-03-30
    • Helmut LauferHelmut PfeifleMax Straubel
    • Helmut LauferHelmut PfeifleMax Straubel
    • F02M41/12F02M59/02F02M59/26F02M59/36F02M39/00
    • F02M41/123F02M41/128F02M59/366F02B2275/14Y02T10/123
    • 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.
    • 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。
    • 8. 发明授权
    • Fuel injection pump
    • 燃油喷射泵
    • US4733640A
    • 1988-03-29
    • US857665
    • 1986-04-30
    • Helmut LauferMax Straubel
    • Helmut LauferMax Straubel
    • F02D1/18F02M41/12F02M63/02F02M39/00
    • F02M63/0205F02M41/124F02M41/126F02M41/128
    • A fuel injection pump for internal combustion engines is described, which for controlling fuel quantity is provided with control unit that controls an electric final control element, which in turn actuates the regulating member that determines the fuel injection quantity per pump piston supply stroke. The supply of fuel to the pump work chamber is effected from a fuel supply chamber, which is kept at a controlled pressure by a fuel feed pump. To limit the maximum speed of the engine supplied by the fuel injection pump in the event of failure of the control unit, a valve is provided in the intake line of the fuel feed pump. Using this valve, the flow cross section of the intake line can be varied or closed. By means of the modification of the fuel pressure in the fuel supply chamber effected thereby, a control of the fuel injection quantity that is not dependent on the position of the quantity-determining member is attained.
    • 描述了一种用于内燃机的燃料喷射泵,用于控制燃料量的控制单元设置有控制单元,该控制单元控制电动最终控制元件,该控制单元又致动调节构件,该调节构件确定每个泵活塞供应冲程的燃料喷射量。 向泵工作室供给燃料由燃料供给室进行,燃料供给室通过燃料供给泵保持受控制的压力。 为了在控制单元发生故障的情况下限制由燃料喷射泵供给的发动机的最大速度,在燃料供给泵的进气管路中设置有阀。 使用该阀,可以改变或关闭进气管线的流动横截面。 通过对由此实现的燃料供给室中的燃料压力的修改,可以获得不依赖于数量决定部件的位置的燃料喷射量的控制。