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    • 1. 发明授权
    • Fuel system
    • 燃油系统
    • US5285759A
    • 1994-02-15
    • US982943
    • 1992-11-30
    • Takehiko TeradaHirotada YamadaMasao Yonekawa
    • Takehiko TeradaHirotada YamadaMasao Yonekawa
    • F02M37/00F02M37/20F02M69/00F02M69/46F02M69/54
    • F02M37/0029F02M37/0052F02M37/20F02M69/462F02M69/54Y10T137/86002Y10T137/86171
    • A fuel system of an internal combustion engine comprises a fuel tank for storing fuel, a fuel injection valve disposed on the internal combustion engine, a fuel supply pipeline connecting between the fuel tank and the fuel injection valve, a fuel pump for supplying the fuel in the fuel tank to the fuel injection valve through the fuel supply pipeline, a fuel injection pressure regulator for regulating the fuel injection pressure of the fuel injection valve to a predetermined pressure, a fuel return pipeline through which surplus fuel from the fuel injection pressure regulator is returned into the fuel tank, and a pressure increasing device disposed in the fuel return pipeline and serving to increase the pressure in the fuel return pipeline above the pressure in the fuel tank while maintaining fuel pressure regulating function of the fuel injection pressure regulator.
    • 内燃机的燃料系统包括用于储存燃料的燃料箱,设置在内燃机上的燃料喷射阀,连接在燃料箱和燃料喷射阀之间的燃料供给管线,用于将燃料供给的燃料泵 通过燃料供给管道将燃料箱提供到燃料喷射阀,用于将燃料喷射阀的燃料喷射压力调节到预定压力的燃料喷射压力调节器,来自燃料喷射压力调节器的多余燃料通过燃料返回管路 返回到燃料箱中,以及设置在燃料回流管道中的增压装置,用于在燃料箱内的压力高于燃料箱的压力的同时,同时维持燃料喷射压力调节器的燃料压力调节功能。
    • 3. 发明授权
    • Apparatus for detecting misfire in internal combustion engine
    • 用于检测内燃机失火的装置
    • US5499537A
    • 1996-03-19
    • US363211
    • 1994-12-23
    • Masaaki NakayamaYasutoshi BabaTakehiko TeradaShuji SakakibaraKenji Yamamoto
    • Masaaki NakayamaYasutoshi BabaTakehiko TeradaShuji SakakibaraKenji Yamamoto
    • G01M15/11G01M15/00
    • G01M15/11
    • A rotation signal outputting device outputs a rotation signal at every predetermined rotational angle of an engine output shaft. An actual measurement value calculating device measures an amount of time spent by multiple engine cylinders in rotation between predetermined rotational angles during an expansion stroke, the measurements being made based on rotation signals output by the rotation signal outputting device. The actual measurement value calculating device also calculates an actual measurement value in response to the measured time interval. A first variation amount calculating device calculates a first difference between actual measurement values in two cylinders of the engine, and calculates a first variation amount in response to the calculated first different. A second variation amount calculating device calculates a second difference between a current first variation amount and a previous first variation amount calculated during a time which precedes a time of calculation of the current first variation amount by a period equal to an integer times a crank angle of 360 degrees in the engine. The second variation amount calculating device also calculates a second variation amount in response to the calculated Second difference. A smoothing device smooths the second variation amount into a third variation amount. A consecutive misfire detecting device detects a misfiring condition in response to the third variation amount.
    • 旋转信号输出装置以发动机输出轴的每个预定旋转角输出旋转信号。 实际测量值计算装置测量在膨胀冲程期间由预定旋转角度之间的多个发动机气缸旋转所花费的时间量,该测量值基于由旋转信号输出装置输出的旋转信号进行。 实际测量值计算装置还根据测量的时间间隔计算实际测量值。 第一变化量计算装置计算发动机的两个气缸中的实际测量值之间的第一差,并且响应于所计算的第一不同而计算第一变化量。 第二变化量计算装置计算当前第一变化量与在当前第一变化量的计算时间之前的时间内计算出的前一个第一变化量之间的第二差值等于整数倍的曲柄角 发动机360度。 第二变化量计算装置还根据计算的第二差计算第二变化量。 平滑装置将第二变化量平滑化为第三变化量。 连续失火检测装置响应于第三变化量来检测失火状态。