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    Fuel injection system for internal combustion engine
    2.
    发明授权
    Fuel injection system for internal combustion engine 失效
    内燃机燃油喷射系统

    公开(公告)号：US5216994A

    公开(公告)日：1993-06-08

    申请号：US861287

    申请日：1992-03-31

    申请人： Narutoshi Aoki ,  Yutaka Inaba ,  Yoshinobu Arakawa ,  Tsuneaki Endou ,  Ryuji Satsukawa

    发明人： Narutoshi Aoki ,  Yutaka Inaba ,  Yoshinobu Arakawa ,  Tsuneaki Endou ,  Ryuji Satsukawa

    IPC分类号： F02D41/06 ,  F02D41/20 ,  F02D41/30 ,  F02D45/00 ,  F02M51/06 ,  H02J9/06

    CPC分类号： F02D41/062 ,  F02D41/20 ,  H02J9/061 ,  F02D2041/2006 ,  F02D2041/2013 ,  F02D2041/2051 ,  F02D2041/2058

    摘要： A fuel injection system for an internal combustion engine capable of being normally operated while using an output of a generator driven by the internal combustion engine as a power supply therefor. The system includes a switching circuit for switching a driving current fed to an injector from a main power circuit which uses the output of the generator as a power supply therefor. The switching circuit is controlled by a switch control circuit for which a power supply comprises a control power circuit. The control power circuit includes a storage unit for storing electric power therein, so that the storage unit may be act as a power supply when the output of the main power circuit is reduced, to thereby feed the switch control circuit with a power supply voltage of a level equal to or above an operable level. The storage unit is charged by the output of the main power circuit or an output of a generating coil for a control power supply provided in the generator in a manner to be separate from a generating coil for the main power supply.

    摘要翻译： 一种用于内燃机的燃料喷射系统，其能够在使用由内燃机驱动的发电机的输出作为其供电时正常操作。 该系统包括切换电路，用于从使用发电机的输出的主电源电路切换馈送到喷射器的驱动电流作为其电源。 开关电路由电源包括控制电源电路的开关控制电路控制。 控制电源电路包括用于在其中存储电力的存储单元，使得当主电源电路的输出减小时，存储单元可以用作电源，从而以开关控制电路的电源电压 等于或高于可操作水平的水平。 存储单元以与主电源的发电线圈分开的方式由主电源电路的输出或设置在发电机中的用于控制电源的发电线圈的输出充电。

    Fuel injection system for two-stroke cycle engine
    4.
    发明授权
    Fuel injection system for two-stroke cycle engine 失效
    二冲程发动机燃油喷射系统

    公开(公告)号：US5441030A

    公开(公告)日：1995-08-15

    申请号：US189787

    申请日：1994-02-01

    申请人： Ryuji Satsukawa

    发明人： Ryuji Satsukawa

    IPC分类号： F02B75/02 ,  F02D41/06

    CPC分类号： F02D41/061 ,  F02D41/064 ,  F02B2075/025 ,  F02D2400/04

    摘要： A fuel injection system for a two-stroke cycle engine capable of keeping an air-fuel ratio of an air-fuel mixture for combustion at a low engine speed optimum to improve startability of the engine in a cold district. The system includes a low-speed basic injection time increment setting unit for setting a low-speed basic injection time increment Tfi depending on an engine speed N and a throttle opening .alpha., a low-speed crankcase temperature correction factor setting unit for setting a low-speed crankcase temperature correction factor KLc, time correction factor setting units for setting a time correction factor Kt which is decreased with an increase in crankcase temperature, as well as with lapse of time, and a low-speed injection time increment setting unit for setting a low-speed injection time increment TiL by multiplying the increment Tfi by the correction factors KLc and Kt. A fuel injection time setting unit is arranged so as to add the increment TiL to basic fuel injection time Tp to provide injection time Tp+TiL, which is then corrected depending on various conditions to operate fuel injection time Ti.

    摘要翻译： 一种用于二冲程循环发动机的燃料喷射系统，能够将发动机转速低的燃烧用空气燃料混合物的空燃比保持在最佳状态，以提高发动机在寒冷地区的起动性。 该系统包括：低速基本喷射时间增量设定单元，用于根据发动机转速N和节气门开度α设定低速基本喷射时间增量Tfi;低速曲轴箱温度校正系数设定单元， 速度曲轴箱温度校正系数KLc，设定时间校正系数Kt的时间校正系数设定单元，其随着曲轴箱温度的上升以及时间的推移而减小，以及用于设定的低速喷射时间增量设定单元 通过将增量Tfi乘以校正因子KLc和Kt来实现低速喷射时间增量TiL。 燃料喷射时间设定单元被布置成将增量TiL添加到基本燃料喷射时间Tp以提供喷射时间Tp + TiL，然后根据各种条件来校正燃料喷射时间Ti。