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    • 47. 发明授权
    • Fuel injection apparatus for internal combustion engines
    • 内燃机燃油喷射装置
    • US4475518A
    • 1984-10-09
    • US445940
    • 1982-12-01
    • Mineo KashiwayaYoshiyuki TanabeKinsaku YamadaHisato Tsuruta
    • Mineo KashiwayaYoshiyuki TanabeKinsaku YamadaHisato Tsuruta
    • F02D41/34F02D41/08F02D41/18F02M51/02F02M51/00
    • F02D41/08F02D41/187F02M51/02
    • In a fuel injection apparatus for internal combustion engine wherein a hot wire sensor is provided in an air bypass communicating the upstream side of a Venturi portion formed in an air-intake path with the Venturi portion, the amount of air flowing in the air bypass is controlled by an air-scaling valve driven by an electromagnetic device so that the output of the hot wire sensor converges to a set level, fuel is scaled by a fuel-scaling valve driven by the electromagnetic device in accordance with the change of the amount of air supplied to the engine, and the scaled fuel is continuously injected into the air-intake path, the set level is determined to a value which is smaller than a maximum output value of the hot wire sensor occurring when the air-scaling valve is fully opened during idling operation of the engine, thereby ensuring that the output of the hot wire sensor can converge to the set level during the idling operation.
    • 在用于内燃机的燃料喷射装置中,其中热线传感器设置在将形成在空气进入路径中的文丘里部分的上游侧与文氏管部分连通的空气旁路中,空气旁路中流动的空气量为 由由电磁装置驱动的空气调节阀控制,使得热丝传感器的输出收敛到设定水平,燃料由电磁装置驱动的燃料调节阀根据量的变化量化 供给发动机的空气,并且缩放燃料被连续地喷射到进气路径中,所设定的水平被确定为小于当空气定标阀完全地发生的热丝传感器的最大输出值的值 在发动机怠速运转期间打开,从而确保在怠速运转期间热线传感器的输出可以收敛到设定水平。