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    • 95. 发明授权
    • Air-fuel ratio control system
    • 空燃比控制系统
    • US4292946A
    • 1981-10-06
    • US82337
    • 1979-10-05
    • Kenji Masaki
    • Kenji Masaki
    • F02D41/14F02D41/26F02M3/09F02M7/24F02B33/00
    • F02D41/26F02D41/144F02M3/09F02M7/24
    • An air-fuel ratio control system is disclosed for use with a carburettor including an air-fuel induction passage provided therein with a throttle valve. The system comprises a control circuit responsive to various engine operating factors for deriving an engine operating condition and providing a pulse signal having a constant period and a pulse width corresponding to the derived engine operating condition, fuel supply means for supplying fuel, a fuel passage connected at its one end to the fuel supply means and at the other end to the induction passage downstream of the throttle valve, and a control valve provided in the fuel passage, the control valve responsive to the pulse signal from the control circuit for controlling the flow of fluid passing therethrough thereby providing an optimum air-fuel ratio corresponding to the engine operating condition.
    • 公开了一种空气燃料比控制系统,其与包括设置有节流阀的空气 - 燃料感应通路的化油器一起使用。 该系统包括响应于各种发动机操作因素的控制电路,用于导出发动机操作状态,并提供具有与所导出的发动机工作条件相对应的恒定周期和脉冲宽度的脉冲信号,用于供应燃料的燃料供应装置,连接的燃料通道 在其一端到燃料供给装置,另一端连接到节气门下游的感应通道,以及设置在燃料通道中的控制阀,该控制阀响应来自控制电路的脉冲信号来控制流量 的流体通过,从而提供对应于发动机操作条件的最佳空燃比。