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    Fuel injector and internal combustion engine
    6.
    发明授权
    Fuel injector and internal combustion engine 失效
    燃油喷射器和内燃机

    公开(公告)号：US06571773B1

    公开(公告)日：2003-06-03

    申请号：US09628717

    申请日：2000-07-28

    申请人： Makoto Yamakado ,  Yoshiyuki Tanabe ,  Toshio Takahata ,  Hiromasa Kubo ,  Yasunaga Hamada ,  Yoshio Okamoto ,  Yuzo Kadomukai

    发明人： Makoto Yamakado ,  Yoshiyuki Tanabe ,  Toshio Takahata ,  Hiromasa Kubo ,  Yasunaga Hamada ,  Yoshio Okamoto ,  Yuzo Kadomukai

    IPC分类号： F02M5100

    CPC分类号： F02D41/20 ,  F02D2041/2058 ,  F02D2200/503

    摘要： The target peak current value, where a current value is reduced in conformity to a drop in the voltage of a battery 18 is stored in target peak current storage unit 68. ON-signals are sent from current control circuit 56 to power transistor 50 in response to the injection command pulse coming from engine controller 58 so that current is applied to coil 20. Then, the current flowing to coil 20 is detected by the current detecting resistor 52. Comparator 62 compares this detected current and the target peak current value read from the target peak current storage unit 68 conforming to the voltage of battery 18. If agreement is found between these two values, OFF-signals are sent to power transistor 50 from current control circuit 56 in response to the switching command coming from comparator 62. Then, On/Off signals to effect holding of the coil 20 are sent from current control circuit 56 to power transistor 50. The linearity of the injection volume despite changes in battery voltage can be maintained.

    摘要翻译： 目标峰值电流值，其当前值根据电池18的电压下降而减小存储在目标峰值电流存储单元68中。接通信号从电流控制电路56发送到功率晶体管50以作出响应 到来自发动机控制器58的喷射命令脉冲，使得电流被施加到线圈20.然后，流过线圈20的电流由电流检测电阻器52检测。比较器62将该检测到的电流与从 目标峰值电流存储单元68符合电池18的电压。如果在这两个值之间达成一致，则响应于来自比较器62的切换命令，将OFF信号从电流控制电路56发送到功率晶体管50.然后 ，用于实现线圈20的保持的开/关信号从电流控制电路56发送到功率晶体管50.尽管电池电压的变化，注入体积的线性可以 保持。

    Fuel injector
    10.
    发明授权
    Fuel injector 失效
    喷油器

    公开(公告)号：US06845925B2

    公开(公告)日：2005-01-25

    申请号：US09989068

    申请日：2001-11-21

    申请人： Motoyuki Abe ,  Yoshio Okamoto ,  Yuzo Kadomukai ,  Makoto Yamakado ,  Ayumu Miyajima ,  Toru Ishikawa ,  Yasuo Namaizawa

    发明人： Motoyuki Abe ,  Yoshio Okamoto ,  Yuzo Kadomukai ,  Makoto Yamakado ,  Ayumu Miyajima ,  Toru Ishikawa ,  Yasuo Namaizawa

    IPC分类号： F02M51/06 ,  F02M61/16 ,  F02M61/18 ,  F02M61/00

    CPC分类号： F02M61/1806 ,  F02M51/061 ,  F02M61/162

    摘要： To produce a fuel spray that is asymmetrical in the flow rate distribution of a sprayed fuel in order to improve the homogeneity of air-fuel mixture density during the air intake stroke injection for homogeneous combustion in an in-cylinder injection engine, the exit portion of the fuel injection hole is provided with the wall surfaces 204a, 204b, 205a, and 205b that are parallel to the central axis of the injection hole. Also, the periphery of the injection hole is provided with a plurality of areas in which the flow of the fuel in the radial direction of the injection hole will be restrained, and an plurality of areas in which the flow of the fuel in the radial direction of the injection hole will not be restrained, and a different size is assigned to each non-restraint area.

    摘要翻译： 为了在喷射燃料的流量分布中产生不对称的燃料喷雾，以便在缸内喷射发动机的均匀燃烧的进气冲程喷射期间提高空气 - 燃料混合物密度的均匀性， 燃料喷射孔设置有与喷射孔的中心轴线平行的壁面204a，204b，205a，205b。 此外，喷射孔的周边设置有多个区域，其中燃料在喷射孔的径向方向上的流动将被抑制，并且燃料在径向上的流动的多个区域 不会限制注入孔，并且对每个非约束区域分配不同的尺寸。