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    • 53. 发明授权
    • Fuel injector control system and method
    • 燃油喷射器控制系统及方法
    • US07255091B2
    • 2007-08-14
    • US11139685
    • 2005-05-31
    • Travis E. BarnesRammohan SankarDaniel Yongxiang Li
    • Travis E. BarnesRammohan SankarDaniel Yongxiang Li
    • F02M37/04F02M37/08
    • F02M63/0015F02M45/02F02M47/027F02M57/023F02M59/366
    • A fuel injector for an internal combustion engine is disclosed. The fuel injector has a plunger, an electronically controlled check valve, and a controller in communication with the electronically controlled check valve. The controller is configured to receive a indication of a desired start of injection timing relative to an angular position of a crankshaft of the engine, and a desired injection quantity. The controller is also configured to determine a displacement of the plunger based on an angular position of the crankshaft; to determine a start of current for the electronically controlled check valve relative to plunger displacement that results in the desired start of injection timing, and to determine an end of current for the electronically controlled check valve relative to plunger displacement that results in the desired injection quantity. The controller is further configured to affect the determined start and end of current for the electronically controlled check valve.
    • 公开了一种用于内燃机的燃料喷射器。 燃料喷射器具有柱塞,电控止回阀和与电控止回阀连通的控制器。 控制器被配置为接收相对于发动机的曲轴的角位置和期望的喷射量的期望的喷射正时开始的指示。 控制器还构造成基于曲轴的角位置来确定柱塞的位移; 以确定电子控制止回阀相对于柱塞位移的电流开始,其导致所需的喷射正时开始,并且确定电子控制止回阀相对于柱塞位移的电流的结束,其导致期望的喷射量 。 控制器还被配置为影响电子控制止回阀确定的电流开始和结束。
    • 54. 发明申请
    • Valve Assembly For An Injection Valve And Injection Valve
    • 注射阀和注射阀的阀组件
    • US20070176132A1
    • 2007-08-02
    • US11626558
    • 2007-01-24
    • Mauro Grandi
    • Mauro Grandi
    • F16K47/00
    • F02M61/162F02M51/06F02M51/0603F02M61/12F02M61/18F02M63/0015F02M63/0026
    • A valve assembly (60) for an injection valve (62) has a valve body (4) including a central longitudinal axis (L), the valve body (4) has a cavity (8) with a fluid inlet portion (42) and a fluid outlet portion (44), a valve needle (10) axially movable in the cavity (6), the valve needle (10) preventing a fluid flow through the fluid outlet portion (44) in a closing position and releasing the fluid flow through the fluid outlet portion (44) in further positions, and a fluid flow directing element (46) arranged in the fluid outlet portion (44) coaxially between the valve body (4) and the valve needle (10) and extending in radial direction away from the valve needle (10) in a way that a fluid flow between the valve needle (10) and the fluid flow directing element (46) is prevented.
    • 用于喷射阀(62)的阀组件(60)具有包括中心纵向轴线(L)的阀体(4),阀体(4)具有带流体入口部分(42)的空腔(8) 流体出口部分(44),在空腔(6)中可轴向移动的阀针(10),所述阀针(10)防止流体在关闭位置流过流体出口部分(44)并释放流体流 通过另外的位置处的流体出口部分(44),以及布置在流体出口部分(44)中的同时位于阀体(4)和阀针(10)之间并沿径向方向延伸的流体流动引导元件(46) 远离阀针(10),以防止阀针(10)和流体导流元件(46)之间的流体流动。
    • 56. 发明授权
    • Control valve for a fuel injector comprising a pressure exchanger
    • 一种用于燃料喷射器的控制阀,包括压力交换器
    • US07216815B2
    • 2007-05-15
    • US10566247
    • 2004-06-17
    • Hans-Christoph Magel
    • Hans-Christoph Magel
    • F02M47/02B05B1/30
    • F02M61/205F02M47/027F02M57/025F02M63/0015F02M63/0026F02M63/0029F02M63/004F02M63/0043F02M63/0045F02M63/0225
    • A servo-valve for a fuel injector equipped with a pressure booster whose working chamber is separated from a differential pressure chamber by a booster piston in which an actuator can connect a control chamber to a first low-pressure return and the differential pressure chamber can be connected to a second low-pressure return or to a return system in which the returns are connected to each other. A first servo-valve piston has a first sealing seat, and a second piston, embodied as a sealing sleeve, is accommodated on the first servo-valve piston and, together with a valve housing, constitutes a second sealing seat. When the pressure in the control chamber is relieved, this second sealing seat is closed with a shorter stroke, sooner than the first sealing seat. When the control chamber is subjected to pressure, the second sealing seat opens only after the first sealing seat is closed.
    • 一种用于燃料喷射器的伺服阀,其配备有增压器,其工作室通过增压活塞与压差室分离,其中致动器可将控制室连接到第一低压回路,差压室可以是 连接到第二低压返回或返回系统,其中返回物彼此连接。 第一伺服阀活塞具有第一密封座,并且实施为密封套的第二活塞容纳在第一伺服阀活塞上,并与阀壳一起构成第二密封座。 当释放控制室中的压力时,该第二密封座以较短的冲程闭合,比第一密封座早。 当控制室经受压力时,第二密封座仅在第一密封座关闭之后打开。
    • 57. 发明授权
    • Common rail fuel injection system
    • 共轨燃油喷射系统
    • US07204233B2
    • 2007-04-17
    • US11227090
    • 2005-09-16
    • Koichi Nagai
    • Koichi Nagai
    • F02M1/00
    • F02M63/004F02D41/3863F02D2200/0602F02D2250/31F02M63/0015F02M63/0026F02M63/0225F02M63/0235F02M2200/505
    • A pressure-reduction valve that returns fuel in a common rail to a low-pressure system is such one that a valve-opening pressure of the valve device is changed by an actuator into a target common rail pressure. Thus, when the actual common rail pressure in the common rail exceeds the target common rail pressure, the pressure-reduction valve opens at once. On the contrary, when the actual common rail pressure in the common rail decreases to reach the target common rail pressure, the pressure-reduction valve closes at once. Accordingly, the pressure-reduction valve limits an overshoot and an undershoot of the actual common rail pressure to a minimum without being influenced by a fuel temperature or by detection timings of the common rail pressure sensor.
    • 将共轨中的燃料返回到低压系统的减压阀是通过致动器将阀装置的开阀压力变更为目标共轨压力的减压阀。 因此,当共轨中的实际共轨压力超过目标共轨压力时,减压阀立即打开。 相反,当共轨中的实际共轨压力降低到目标共轨压力时,减压阀立即关闭。 因此,减压阀将实际共轨压力的过冲和下冲限制到最小,而不受燃料温度的影响或共轨压力传感器的检测定时。
    • 59. 发明申请
    • Poppet valve device and electronic controlled fuel injection apparatus equipped with the device
    • 提升阀装置和装有该装置的电控燃油喷射装置
    • US20060284127A1
    • 2006-12-21
    • US11514233
    • 2006-09-01
    • Hisao OgawaTakashi Kaneko
    • Hisao OgawaTakashi Kaneko
    • F16K31/00
    • F16K31/0624F02M57/02F02M59/366F02M63/0015F02M63/0031F02M2200/04F02M2200/304F16K11/0716F16K31/061F16K47/04Y10T137/86759
    • The poppet valve device is composed such that a plurality of axial passages of substantially the same diameter and length communicating to the high-pressure room formed inside the valve seat member between the poppet valve body and the valve seat member are provided in the valve seat member, the passages being located adjacent to each other, or passages being located axially symmetrically, and the annular gap formed between the periphery of the poppet valve body and the inner perimeter of the projecting part on which the valve seat face of the valve seat member is formed is narrow to restrict liquid flow through the annular gap. The electronic controlled fuel injection apparatus equipped with the poppet valve device is composed such that the lower end part of the poppet valve body and the bottom of the valve device accommodating part of the fuel injection apparatus are formed to restrict the flow of the fuel between the lower end of the poppet valve body and the bottom of the valve device accommodation part to the central hollow of the poppet valve body, whereby the occurrence of bouncing is prevented.
    • 提升阀装置构成为使得与阀座构件内形成在提升阀阀体和阀座构件之间的高压室连通的大致相同直径和长度的多个轴向通道设置在阀座构件中 通道彼此相邻,或者通道轴向对称,并且形成在提升阀体的周边与突出部分的内周边之间的环形间隙,阀座构件的阀座面上的环形间隙是 形成的狭窄以限制液体流过环形间隙。 配备有提升阀装置的电子控制燃料喷射装置被构成为使得提升阀体的下端部和容纳燃料喷射装置的部分的阀装置的底部形成为限制燃料在 提升阀体的下端和阀装置容纳部的底部到提升阀体的中心中空,从而防止弹跳的发生。