Fuel supply system
    2.
    发明授权
    Fuel supply system 有权
    燃油供应系统

    公开(公告)号:US06725837B2

    公开(公告)日:2004-04-27

    申请号:US10056081

    申请日:2002-01-28

    IPC分类号: F02M700

    摘要: The unevenness of injection rates of cylinders is reduced in a fuel supply system of a direct injection engine which uses a variable-displacement single plunger pump. The unevenness of injection rates of cylinders can be reduced by effecting a control such that the cam 100, which drives the high-pressure fuel pump 101, makes one reciprocation, while the engine makes explosions in two cylinders, and by causing the controller 55 to extend the injection time width of one of two injectors 54 which inject during one discharge of the high-pressure fuel pump and to shorten the injection time width of the other injector.

    摘要翻译: 在使用可变排量单柱塞泵的直喷式发动机的燃料供给系统中,气缸的喷射率的不均匀性降低。 通过进行这样的控制,可以减少气缸的喷射速度的不均匀性,使得驱动高压燃料泵101的凸轮100进行一次往复运动,同时发动机在两个气缸中发生爆炸,并且通过使控制器55 延长在高压燃料泵的一次排放期间喷射的两个喷射器54之一的喷射时间宽度,并缩短另一喷射器的喷射时间宽度。

    High pressure fuel pump
    4.
    发明授权

    公开(公告)号:US06651630B2

    公开(公告)日:2003-11-25

    申请号:US10247302

    申请日:2002-09-20

    IPC分类号: F02M3704

    摘要: In order to provide a method for high volume and high pressure operation of a variable delivery type single cylinder plunger pump, the displacement of the piezoelectric element 20 is magnified by a hydraulic displacement magnifying mechanism comprising a large-diameter bellows 204, a small diameter bellows 202 and working fluid 208, and an engaging member 201 is displaced to control the time interval of opening and closing the intake valve 5. The large-diameter bellows 204 is used at all times in the state compressed in the direction of displacement transfer, thereby ensuring that the pressure of the working fluid 208 is maintained at a positive value to prevent vapor from being generated. The thermal expansion of a casing 23 is selected in such a way that the total thermal expansion of the piezoelectric element 200 and hydraulic displacement magnifying mechanism in the direction of displacement transfer is approximately the same as the thermal expansion of the casing 23, whereby highly efficient driving is provided.

    Controlling apparatus of variable capacity type fuel pump and fuel supply system
    10.
    发明授权
    Controlling apparatus of variable capacity type fuel pump and fuel supply system 有权
    可变容量型燃油泵和燃油供应系统的控制装置

    公开(公告)号:US07559313B2

    公开(公告)日:2009-07-14

    申请号:US11217444

    申请日:2005-09-02

    IPC分类号: F02M37/04

    摘要: A controlling apparatus of a variable capacity type fuel pump, for preventing noises caused due to drive of the fuel pump and noises caused due to drive of injectors from overlapping or duplicating each other in the timing thereof, wherein signals for driving the pump are reduced, or the timing thereof is shifted forward/backward, within a specific timing where the overlapping can be expected, or a specific timing where they are determined to overlap or duplicate with each other.

    摘要翻译: 可变容量型燃料泵的控制装置,用于防止由于燃料泵的驱动引起的噪声和由于喷射器的驱动而引起的噪声在其定时中彼此重叠或重复,其中用于驱动泵的信号减小, 或者其定时在可以预期重叠的特定定时内被前向/后向移位,或者被确定为彼此重叠或重复的特定定时。