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    Intake air density compensation on the basis of ignition timing for optimal diesel engine control
    1.
    发明授权
    Intake air density compensation on the basis of ignition timing for optimal diesel engine control 失效
    基于最佳柴油机控制的点火正时进气浓度补偿

    公开(公告)号：US4671236A

    公开(公告)日：1987-06-09

    申请号：US784311

    申请日：1985-10-04

    申请人： Toshimi Matsumura ,  Isao Osuka ,  Akira Masuda

    发明人： Toshimi Matsumura ,  Isao Osuka ,  Akira Masuda

    IPC分类号： F02B3/06 ,  F02D41/00 ,  F02D41/04 ,  F02D41/14 ,  F02D41/40 ,  F02M39/00

    CPC分类号： F02D35/022 ,  F02D41/04 ,  F02D41/14 ,  F02D41/401 ,  F02B3/06 ,  F02D41/408 ,  Y02T10/44

    摘要： In a diesel engine control system, an intake air density compensation system is provided for compensating the control amounts of a diesel engine in accordance with the variations of intake air density. The variation amount of the intake air density is indicated by the difference between the control input amount obtained in accordance with an ignition timing closed loop control and the control amount obtained in accordance with an ignition open loop control. The various control amounts of the diesel engine is compensated on the basis of the difference so that the diesel engine is ensured to be optimally operated irrespective of the variations of intake air density.

    摘要翻译： 在柴油机控制系统中，提供进气密度补偿系统，用于根据进气密度的变化来补偿柴油发动机的控制量。 进气密度的变化量由根据点火正时闭环控制获得的控制输入量与根据点火开环控制获得的控制量之间的差表示。 基于差异来补偿柴油发动机的各种控制量，使得确保柴油发动机被最佳地操作，而与进气密度的变化无关。

    Common-rail fuel injection system for an engine
    2.
    发明授权
    Common-rail fuel injection system for an engine 失效
    用于发动机的共轨燃油喷射系统

    公开(公告)号：US5277156A

    公开(公告)日：1994-01-11

    申请号：US842544

    申请日：1992-02-27

    申请人： Isao Osuka ,  Toshimi Matsumura

    发明人： Isao Osuka ,  Toshimi Matsumura

    IPC分类号： F02D1/02 ,  F02B3/06 ,  F02D41/12 ,  F02D41/38 ,  F02M51/00 ,  F02M59/10 ,  F02M59/36 ,  F02M59/44 ,  F02M59/46 ,  F02M63/00 ,  F02M63/02 ,  F04B49/06 ,  F04B49/22 ,  F02B77/00 ,  F02M41/00

    CPC分类号： F02D41/3845 ,  F02D41/123 ,  F02D41/3827 ,  F02M51/00 ,  F02M59/102 ,  F02M59/366 ,  F02M59/466 ,  F02M63/0225 ,  F04B49/065 ,  F04B49/225 ,  F02B3/06 ,  F02D2200/0602 ,  F02D2250/31 ,  F04B2203/0605

    摘要： A common-rail fuel injection system for an engine includes a fuel injection device for injecting high pressure fuel from a common rail into the engine. A pumping chamber is connected to the common rail. A fuel feed device serves to feed fuel to the pumping chamber. A plunger moves upward and downward in accordance with rotation of an output shaft of the engine. The plunger defines a part of the pumping chamber. A relief valve serves to selectively return fuel from the pumping chamber to a low pressure side via a fuel return passage. The relief valve is urged toward its closed position by a pressure of the fuel in the pumping chamber. A valve closing device serves to close the relief valve. A fuel pumping control device serves to drive and control the valve closing device at a given timing to close the relief valve, thereby enabling a pressure in the pumping chamber to increase in accordance with upward movement of the plunger and pumping a given amount of fuel from the pumping chamber to the common rail. An engine speed detecting device serves to detect a rotational speed of the output shaft of the engine. In cases where an engine rotational speed detected by the engine speed detecting means is equal to or higher than a predetermined reference speed, a fuel feed suspending device serves to suspend fuel feed to the pumping chamber by the fuel feed means.

    摘要翻译： 用于发动机的共轨燃料喷射系统包括用于将高压燃料从共轨注入发动机的燃料喷射装置。 泵送室连接到共轨。 燃料供给装置用于将燃料供给到泵送室。 柱塞根据发动机的输出轴的旋转而向上和向下移动。 柱塞限定了泵送室的一部分。 安全阀用于经由燃料返回通道选择性地将来自泵送室的燃料返回到低压侧。 溢流阀被泵送室中的燃料的压力推向其关闭位置。 阀关闭装置用于关闭溢流阀。 燃料泵送控制装置用于在给定的时间点驱动和控制关闭装置以关闭安全阀，从而使得泵送室中的压力可以根据柱塞的向上运动而增加，并将给定量的燃料从 泵室到共轨。 发动机转速检测装置用于检测发动机的输出轴的转速。 在由发动机转速检测装置检测到的发动机转速等于或高于预定参考速度的情况下，燃料供给悬挂装置用于通过燃料供给装置暂停向泵送室的燃料供给。