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    • 1. 发明专利
    • Diaphragm device and fuel injection device equipped with the same
    • 膜片装置和装有该装置的燃料喷射装置
    • JP2009203848A
    • 2009-09-10
    • JP2008045531
    • 2008-02-27
    • Denso Corp株式会社デンソー
    • MATSUMOTO TEPPEIMOCHIZUKI KOICHI
    • F02M51/06F02M47/00
    • F02M51/0603F02M61/042F02M61/1886F02M61/1893F02M2200/16F02M2200/704F02M2200/707
    • PROBLEM TO BE SOLVED: To provide a diaphragm device of a structure with superior durability and responsiveness by a simple configuration, and a fuel injection device using the diaphragm device. SOLUTION: The diaphragm device 10 includes an actuator 11 placed in a high pressure passage 102 for introducing a high pressure fluid into an interior and generating displacement, a cylindrical housing part 12 housing the actuator 11, a driving part 14 driven by the displacement of the actuator 11, and a displacement transmitting part 112 loosely inserted into the housing part 12 and transmitting the displacement of the actuator 11 to the driving part 14. The housing part 12 and the driving part 14 are oil-tightly connected via a resiliently deformable diaphragm 13, and a stopper part 141 is provided between a sleeve bottom 121 of the housing part 12 and an upper end face of the driving part 14. Contamination of the actuator 11 by the high pressure fluid is prevented, the driving part 14 and the housing part 12 are separated at a predetermined distance, and buckling of the diaphragm 13 and a load to the actuator 11 can be prevented. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:通过简单的结构提供具有优异的耐久性和响应性的结构的隔膜装置,以及使用该隔膜装置的燃料喷射装置。 解决方案:隔膜装置10包括一个致动器11,该致动器11放置在高压通道102中,用于将高压流体引入内部并产生位移;容纳致动器11的圆柱形壳体部分12;驱动部分14, 致动器11的位移以及松动地插入壳体部分12中的位移传递部分112,并将致动器11的位移传递到驱动部分14.壳体部分12和驱动部分14通过弹性地 可变形隔膜13和止动件141设置在壳体部分12的套筒底部121和驱动部分14的上端面之间。防止致动器11被高压流体的污染,驱动部件14和 壳体部分12以预定距离分开,并且可以防止隔膜13和负载到致动器11的弯曲。 版权所有(C)2009,JPO&INPIT
    • 5. 发明专利
    • Fuel injection valve
    • 燃油喷射阀
    • JP2010185377A
    • 2010-08-26
    • JP2009030265
    • 2009-02-12
    • Denso Corp株式会社デンソー
    • IWAMURO MAKOTOMOCHIZUKI KOICHI
    • F02M51/06F02M51/00
    • F02M51/0603F02M2200/703F02M2200/707H01L41/0536H01L41/083
    • PROBLEM TO BE SOLVED: To shorten the whole length of a fuel injection valve 1 while keeping a suitable presetting load to a piezo stack 21.
      SOLUTION: A bellows 25 is arranged on the outer peripheral side of the piezo stack 21, and compressible fluid is enclosed in a sealed space 26 formed between the piezo stack 21 and the bellows 25 by predetermined pressure. A piston 37 is pressed to an elongating direction of the piezo stack 21 by load Fs generated by the compressible fluid, which can compose the whole length of the fuel injection valve 1 to be short. The bellows 25 is made to be a case, and the compressible fluid such as silicone oil is enclosed therein by high pressure. The pressure Fs generated by the compressible fluid can offset an increase amount of the load Ff increased by fuel pressure due to enlarging a diameter of the bellows 25, which can keep the presetting load to the piezo stack 21 at a suitable value.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了缩短燃料喷射阀1的整个长度,同时保持适当的预设载荷到压电叠层21.解决方案:波纹管25布置在压电叠层的外周侧 21,并且可压缩流体通过预定压力封闭在压电叠层21和波纹管25之间形成的密封空间26中。 通过由可压缩流体产生的负载Fs将活塞37压向压电叠层21的延伸方向,该可压缩流体可以构成燃料喷射阀1的整个长度。 波纹管25被制成壳体,并且诸如硅油的可压缩流体被高压包封在其中。 可压缩流体产生的压力Fs可以通过扩大波纹管25的直径来抵消由于燃料压力而增加的负载Ff的增加量,这可以使压电堆21的预设载荷保持在合适的值。 版权所有(C)2010,JPO&INPIT
    • 6. 发明专利
    • Fuel injection valve
    • 燃油喷射阀
    • JP2008008281A
    • 2008-01-17
    • JP2007033737
    • 2007-02-14
    • Denso Corp株式会社デンソー
    • NAGATOMO HIROAKISAITO KIMITAKAMOCHIZUKI KOICHI
    • F02M51/06F02M47/00
    • F02M61/08F02M51/0603F02M55/004F02M2200/707
    • PROBLEM TO BE SOLVED: To stabilize the lift behavior of a valve member, and to expand an application range of supplied high-pressure fuel pressure by suppressing leakage fuel flowing out to a transmission expanding chamber 60 on a driving part 90 side from a fuel chamber 27. SOLUTION: For suppressing the high-pressure fuel of the fuel chamber 27 from flowing out to the transmission expanding chamber (back pressure chamber) 60 side of a driving part 90 via a clearance between a sliding part 13a and a valve member 16, a seal means 70 having a ring member 71 and an O ring pressing member 72 is arranged in the sliding part 13a for partitioning the fuel chamber 27 and the driving part 90 side for liftably driving the valve member 16 so as to contact with both surfaces of the inner peripheral surface of the sliding part 13a and the outer peripheral surface of the valve member 16. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了稳定阀构件的升力特性,并且通过抑制流出到驱动部件90侧的变速器膨胀室60的泄漏燃料来扩大供给的高压燃料压力的施加范围, 燃料室27.解决方案:为了抑制燃料室27的高压燃料经由滑动部分13a之间的间隙流出到驱动部分90的变速器膨胀室(背压室)60侧 阀构件16,具有环构件71和O形环按压构件72的密封装置70设置在滑动部分13a中,用于分隔燃料室27和驱动部分90侧,用于可升降地驱动阀构件16,以便 与滑动部13a的内周面和阀构件16的外周面的两面接触。版权所有(C)2008,JPO&INPIT
    • 9. 发明专利
    • Method of assembling fuel injector
    • 组装燃油喷射器的方法
    • JP2005256837A
    • 2005-09-22
    • JP2005047844
    • 2005-02-23
    • Delphi Technologies Incデルファイ・テクノロジーズ・インコーポレイテッド
    • BERLEMONT JEAN-FRANCOIS
    • B05B1/08F02M51/00F02M51/06F02M61/16F02M61/20F02M63/00H01L41/08H02N2/00
    • F02M51/005F02M51/0603F02M61/165F02M2200/215F02M2200/707
    • PROBLEM TO BE SOLVED: To provide a method of assembling a fuel injector, which prevents considerable increase in the size of an actuator device, since a space for providing the actuator device inside the fuel injector is limited.
      SOLUTION: The method for assembling the fuel injector comprising a fuel injector main body having an accumulator defined therein is described. The method comprises: providing an encapsulated actuator device having a piezoelectric actuator stack and electrical connector means, wherein the stack is encapsulated in a sleeve member; providing a volume of sealing material in the region of the electrical connector means; locating the encapsulated actuator device inside the accumulator; applying heat indirectly to the volume of sealing material so as to soften the volume of the sealing material; and applying pressure to the encapsulated actuator device such that the volume of sealing material deforms to form a substantially fluid-tight seal between the encapsulated actuator device and the accumulator in the region of the electrical connector means.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种组装燃料喷射器的方法,其防止致动器装置的尺寸的显着增加,因为用于在燃料喷射器内部提供致动器装置的空间受到限制。

      解决方案描述了组装燃料喷射器的方法,该燃料喷射器包括一个其中限定有蓄能器的燃料喷射器主体。 该方法包括:提供具有压电致动器堆叠和电连接器装置的封装的致动器装置,其中所述堆叠被封装在套筒构件中; 在所述电连接器装置的区域中提供一定量的密封材料; 将封装的致动器装置定位在蓄能器内部; 间接施加热量到密封材料的体积,以便软化密封材料的体积; 以及向所述封装的致动器装置施加压力,使得所述密封材料的体积变形以在所述电连接器装置的区域中在所述封装的致动器装置和所述蓄能器之间形成基本上不透液体的密封。 版权所有(C)2005,JPO&NCIPI