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    • 4. 发明授权
    • Hydraulic injection-adjusting device for high pressure injection
installations in auto-igniting internal combustion engines
    • 用于自动点火内燃机的高压喷射装置的液压喷射调节装置
    • US4450818A
    • 1984-05-29
    • US177074
    • 1980-08-11
    • Frank ThomaKarl-Heinz HoffmannChristoph Burckhardt
    • Frank ThomaKarl-Heinz HoffmannChristoph Burckhardt
    • F02D1/18F16D5/00F02M59/20
    • F02D1/183
    • A hydraulic injection-adjusting device for high pressure injection installations in auto-igniting internal combustion engines. Oil is supplied to operating chambers of the injection-adjusting device by means of a pressure supply pump with an electrically actuatable regulating valve being provided for controlling the flow of oil to inlet of the operating chambers. An electronic control unit is supplied on an input side which signals corresponding to current engine operating parameters with the control unit yielding on an output side thereof a desired value for the regulating valve to apply pressure in a controlled fashion to the injection-adjusting device. An arrangement is provided for measuring the actual value of the adjustment angle at the injection-adjusting device by constant answer-back line provides a feed of the actual value to the control unit. A control unit, depending on whether the desired value is larger with respect to the actual value or whether the actual value is larger than the desired value, yields a first and second signal of a defined magnitude. A regulating valve is constructed as an electromagnetically operated three-way or three-position valve for regulation of pressure supply, and pressure relief, with the regulating valve being capable of providing a control function when the valve is in a closed position.
    • 一种用于自动点火内燃机的高压喷射装置的液压喷射调节装置。 油通过压力供应泵供应到注射调节装置的操作室,该压力供应泵具有用于控制向操作室入口的油流的电致动调节阀。 电子控制单元在输入侧提供与控制单元相对应的当前发动机操作参数的信号,该控制单元在其输出侧产生用于调节阀的期望值,以受控方式将压力施加到喷射调节装置。 提供一种用于通过恒定回答线来测量注射调节装置处的调节角度的实际值的装置,其将实际值的馈送提供给控制单元。 控制单元取决于所需值是否相对于实际值更大或实际值是否大于期望值,产生具有确定量值的第一和第二信号。 调节阀被构造为用于调节压力供应的电磁操作三通阀或三位置阀,并且当阀处于关闭位置时调节阀能够提供控制功能。