Fuel injection device for internal combustion engine and method of controlling fuel injection therefor
    8.
    发明专利
    Fuel injection device for internal combustion engine and method of controlling fuel injection therefor 有权
    用于内燃机的燃油喷射装置及其燃料喷射的控制方法

    公开(公告)号:JP2007162674A

    公开(公告)日:2007-06-28

    申请号:JP2006122425

    申请日:2006-04-26

    摘要: PROBLEM TO BE SOLVED: To provide a fuel injection device for an internal combustion engine and a method of controlling fuel injection by a simple structure at low cost. SOLUTION: This fuel injection device for the internal combustion engine comprises an injection nozzle 5 and an electric injector 1 having a needle 7 opening and closing the nozzle 5 by an electric actuator 8. The movement of the needle 7 is controlled by a rod 14 pressed by the pressure of a fuel in a control chamber 15 in which the needle 7 is normally maintained at the position for closing the nozzle 5. The control chamber has an inlet 18 with a diameter D 4 and an outlet passage 24 having a diameter D 5 and controlled by a control valve 16. The method for fuel injection comprises the step of selecting the ratio D 5 /D 4 of the diameters to determine the rate of the displacement of the needle 7 and the step of transmitting a first electric command C 1 and a second electric command C 2 adjacent to each other to the device 8 to move the needle 7 in the profile P operated continuously with time. COPYRIGHT: (C)2007,JPO&INPIT

    摘要翻译: 要解决的问题:提供一种用于内燃机的燃料喷射装置和以简单的结构以低成本控制燃料喷射的方法。 解决方案:这种用于内燃机的燃料喷射装置包括喷射喷嘴5和具有针7的电喷射器1,针7通过电致动器8打开和关闭喷嘴5.针7的运动由 杆14通过控制室15中的燃料压力而被按压,其中针7通常保持在用于关闭喷嘴5的位置。控制室具有直径D 4 的入口18, 和具有直径D 5 并由控制阀16控制的出口通道24.用于燃料喷射的方法包括选择比率D 5 / SB> SB > 4 以确定针7的位移速率,以及发送第一电子指令C 1 和第二电命令C 2 < SB>相邻地连接到装置8,以移动随时间连续运行的轮廓P中的针7。 版权所有(C)2007,JPO&INPIT

    Method of manufacturing ring-like member, backup ring, and seal structure of fuel injection valve
    9.
    发明专利
    Method of manufacturing ring-like member, backup ring, and seal structure of fuel injection valve 有权
    燃料注射阀制造环形构件,备用环和密封结构的方法

    公开(公告)号:JP2007162638A

    公开(公告)日:2007-06-28

    申请号:JP2005362714

    申请日:2005-12-16

    IPC分类号: F02M51/06 F02M61/16

    摘要: PROBLEM TO BE SOLVED: To provide a method of manufacturing a ring-like member enabling the efficient production of a backup ring reinforcing a seal member installed in the pressure introduction chamber of a fuel injection valve and having high strength, the backup ring, and a seal structure of the fuel injection valve having the backup ring. SOLUTION: This method of manufacturing the ring-like member manufactured by applying a burring method to a flat plate-like base with rigidity comprises the step of forming a prepared hole in the base, the step of bending the edge of the prepared hole by pressing the edge of the prepared hole using a first tapered punch member 1 having a larger diameter than the prepared hole and tapered toward the end for the prepared hole, and the step of forming a flange part by press-fitting a second punch member having a smaller diameter than the firs punch member and tapered toward the end into the prepared hole of which edge is bent. COPYRIGHT: (C)2007,JPO&INPIT

    摘要翻译: 要解决的问题:为了提供一种制造环形构件的方法,其能够有效地生产安装在燃料喷射阀的压力引入室中并且具有高强度的密封构件的支撑环,所述支撑环 以及具有备用环的燃料喷射阀的密封结构。 解决方案:通过将硬化方法应用于平板状基底而制造的环状构件的制造方法包括:在底座上形成预定孔的步骤,使准备的边缘的边缘弯曲的步骤 通过使用具有比准备好的孔大的直径的锥形的第一锥形冲头构件1朝向所制备的孔的端部挤压预制孔的边缘,并且通过压配第二冲压构件形成凸缘部的步骤 具有比第一冲头构件更小的直径并且朝着朝向其弯曲边缘的预定孔的端部逐渐变细。 版权所有(C)2007,JPO&INPIT