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    • 1. 发明专利
    • Displacement amount detection device
    • 位移检测装置
    • JP2013192334A
    • 2013-09-26
    • JP2012055985
    • 2012-03-13
    • Nippon Soken Inc株式会社日本自動車部品総合研究所Denso Corp株式会社デンソー
    • ARIKAWA FUMIAKIADACHI HISAFUMISUZUKI KEISUKE
    • H02K11/00H02K33/02
    • PROBLEM TO BE SOLVED: To determine the lift of a needle with high accuracy by using an electromagnetic actuator, in a fuel injection device whose lift of a needle is determined by means of a permanent magnet provided in the needle.SOLUTION: When an (actual output (solid line B)) is obtained by generating a (command value (solid line A)), an ECU subtracts an (influence output (solid line C)) from the(actual output (solid line B)) so as to determine an (operation waveform (solid line D)), and to determine an (integration waveform (solid line β)) similar to the(lift of needle) by integrating the (operation waveform (solid line D)). Since the lift of needle is determined from the (actual output (solid line B)) while taking account of the (influence output (solid line C)), influence of an electromagnetic actuator can be eliminated, and the lift of needle can be determined with high accuracy.
    • 要解决的问题:通过使用电磁致动器,在通过设置在针中的永磁体来确定针的提升的燃料喷射装置中,以高精度确定针的提升。解决方案:当(实际的 输出(实线B))通过生成(指令值(实线A))获得,ECU从(实际输出(实线B))中减去(影响输出(实线C)),以便确定 (操作波形(实线D)),并通过对(操作波形(实线D))进行积分来确定与(针的提升)相似的(积分波形(实线&bgr)))。 由于考虑到(影响输出(实线C)),从(实际输出(实线B))确定针的提升,可以消除电磁致动器的影响,并且可以确定针的提升 准确度高。
    • 2. 发明专利
    • Fuel injection device
    • 燃油喷射装置
    • JP2011208554A
    • 2011-10-20
    • JP2010076081
    • 2010-03-29
    • Denso CorpNippon Soken Inc株式会社デンソー株式会社日本自動車部品総合研究所
    • YAMASHITA TSUKASAADACHI HISAFUMIMATSUMOTO SHUICHIARIKAWA FUMIAKI
    • F02M47/00F02M47/02F02M61/16
    • F02M63/0043F02M47/027
    • PROBLEM TO BE SOLVED: To provide a fuel injection device improving the responsiveness of a nozzle needle 60.SOLUTION: The fuel injection device 100 includes a control body 40 formed with a nozzle 44, the nozzle needle 60 opening and closing the nozzle 44, a pressure control chamber 53 controlling movement of the nozzle needle 60, an inflow passage 52 leading high-pressure fuel into the pressure control chamber 53, an outflow passage 54 letting the fuel in the pressure control chamber 53 flow out, and a floating plate 70 opening and closing the inflow passage 52. The fuel injection device further includes a plate side seat part 81 seating on the floating plate 70, and a disk spring 80 having legs 84, which extend toward an outer peripheral side according as they advance toward a nozzle needle 60 side from the seat part 81, and generate biasing force while being elastically deformed, and biasing the floating plate 70 in a direction for closing the inflow passage 52.
    • 要解决的问题:提供一种提高喷嘴针60的响应性的燃料喷射装置。解决方案:燃料喷射装置100包括形成有喷嘴44的控制体40,打开和关闭喷嘴44的喷嘴针60 控制喷嘴针60的运动的压力控制室53,将高压燃料引入压力控制室53的流入通道52,使压力控制室53内的燃料流出的流出通路54流出, 并且关闭流入通道52.燃料喷射装置还包括安置在浮动板70上的板侧座部分81和具有腿部84的盘簧80,其具有沿着朝向外周侧延伸的喷嘴针 60侧,并且在弹性变形的同时产生偏压力,并且使浮板70沿着关闭流入通道52的方向施力。
    • 3. 发明专利
    • Fuel injection valve
    • 燃油喷射阀
    • JP2014095343A
    • 2014-05-22
    • JP2012247658
    • 2012-11-09
    • Nippon Soken Inc株式会社日本自動車部品総合研究所Denso Corp株式会社デンソー
    • TODA NAOKIARIKAWA FUMIAKIADACHI HISAFUMI
    • F02M47/00
    • PROBLEM TO BE SOLVED: To improve linearity in "actual injection amount versus injection command time period".SOLUTION: When a nozzle needle 43 exists at a full lift position, a nozzle high-pressure communication passage 433 and a cylinder high-pressure communication passage 441 are communicated, a fuel reserving chamber 413 and a needle control chamber 46 are kept in a communicated state through the nozzle high-pressure communication passage 433 and the cylinder high-pressure communication passage 441, and lowering of a pressure of the needle control chamber 46 is prevented. By keeping the pressure of the needle control chamber 46 to be a prescribed pressure or more, a valve closing state of a high-pressure control valve 48 is kept, and hunching of the high-pressure control valve 48 is prevented. Accordingly, dispersion in the position of the high-pressure control valve 48 in closing a discharge control valve 47, is eliminated, and further dispersion in a time period from the closing of the discharge control valve 47 to start of movement in the valve closing direction, of the nozzle needle 43 is eliminated, thus the linearity in "actual injection amount versus injection command time period" can be improved.
    • 要解决的问题:提高“实际喷射量与喷射指令时间段”的线性度。解决方案:当喷嘴针43存在于全升程位置时,喷嘴高压连通通道433和气缸高压连通通道 441连通,燃料储存室413和针控制室46通过喷嘴高压连通路433和气缸高压连通路441保持连通状态,并且降低针控制室的压力 46被阻止。 通过将针控制室46的压力保持在规定的压力以上,能够保持高压控制阀48的关闭状态,并且能够防止高压控制阀48的冲击。 因此,消除了在关闭排气控制阀47时在高压控制阀48的位置处的分散,并且在从排出控制阀47的关闭到关闭方向的开始运动的时间段内进一步分散 ,因此可以提高“实际喷射量与喷射指令时间段”之间的线性。
    • 4. 发明专利
    • Injector
    • 注射器
    • JP2010236369A
    • 2010-10-21
    • JP2009082418
    • 2009-03-30
    • Denso Corp株式会社デンソー
    • ADACHI HISAFUMI
    • F02M61/10F02M47/00F02M47/02
    • PROBLEM TO BE SOLVED: To improve reliability of an injector by stopping a needle without making the needle collide on a stopper at time of maximum lift of the needle. SOLUTION: A fuel introduction passage 11 introducing high pressure fuel to a nozzle chamber 3 is obliquely provided on a needle sliding shaft part 8, and a lower side opening end of the fluid introduction passage 11 includes a sliding part opening end opening at an outer circumference surface of the needle sliding shaft part 8. The sliding part opening end is blocked by overlapping with a nozzle sliding hole 5 when a needle 10 rises. In the injector, the fuel introduction passage 11 is restricted extremely before reaching allowable lift of the needle 10 thereby. Consequently, "valve closing force by pressure in a pressure control chamber 1 and a spring 28" and "valve opening force by pressure in a nozzle chamber 3" balance when the needle 10 rises, rise of the needle 10 is stopped, and reliability is increased without causing collision at the maximum lift. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:通过在针的最大升程时使针停止而不使针碰到止动件来提高注射器的可靠性。 解决方案:将引导高压燃料的燃料引入通道11倾斜地设置在针滑动轴部8上,并且流体导入通道11的下侧开口端包括滑动部开口端 针滑动轴部8的外周面。当针10上升时,滑动部开口端与喷嘴滑动孔5重叠而被阻挡。 在喷射器中,在达到针10的允许升程之前极限制燃料引入通道11。 因此,当针10上升时,“针10的上升停止,”压力控制室1和弹簧28中的压力的​​关闭力“和”喷嘴室3内的压力的开阀力“ 增加而不会在最大升程时造成碰撞。 版权所有(C)2011,JPO&INPIT
    • 5. 发明专利
    • Injector
    • 注射器
    • JP2008215170A
    • 2008-09-18
    • JP2007053046
    • 2007-03-02
    • Denso Corp株式会社デンソー
    • ADACHI HISAFUMI
    • F02M61/16F02M47/00
    • PROBLEM TO BE SOLVED: To improve a margin with respect to high-pressure sealing property between a nozzle body and a valve body by reducing frictional force in fastening a retaining nut to reduce variation in fastening torque.
      SOLUTION: A plurality of spherical bodies 18 is interposed and fastened between the axial force receiving surface 48A of the nozzle body 48 and the axial force applying surface 25A of the retaining nut 25 which axially screws and tightens the nozzle body 48 and valve body 20. Thereby, the frictional force in fastening the retaining nut 25 is reduced, and the sufficient axial force is generated with a small fastening torque. A torsional moment acting on the nozzle body 48 is also reduced by frictional force reduction, and eccentric wear with deformation of a high precision sliding part structure such as a needle is suppressed. Further, since variation in frictional force is reduced, variation in fastening torque is reduced, and the margin with respect to the high-pressure sealing property between the nozzle body 48 and the valve body 20 is improved.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:通过减少紧固固定螺母的摩擦力来减小紧固扭矩的变化,从而提高喷嘴体与阀体之间的高压密封性的余量。 解决方案:多个球形体18插入并紧固在喷嘴体48的轴向力接收表面48A和保持螺母25的轴向力施加表面25A之间,该轴向力施加表面25A轴向地拧紧并拧紧喷嘴体48和阀 由此,紧固固定螺母25的摩擦力减小,并且以小的紧固扭矩产生足够的轴向力。 作用在喷嘴体48上的扭转力矩也通过摩擦力减小而减小,并且抑制了诸如针的高精度滑动部件结构的变形的偏心磨损。 此外,由于摩擦力的变化减小,紧固扭矩的变化减小,并且提高了喷嘴体48与阀体20之间的高压密封性的余量。 版权所有(C)2008,JPO&INPIT
    • 6. 发明专利
    • Fuel injection valve
    • 燃油喷射阀
    • JP2007192080A
    • 2007-08-02
    • JP2006009727
    • 2006-01-18
    • Denso Corp株式会社デンソー
    • ADACHI HISAFUMI
    • F02M51/00F02M47/00F02M61/20
    • PROBLEM TO BE SOLVED: To provide a fuel injection valve, in which a discharge passage is opened/closed by a valve member, capable of easily securing coaxiality in the discharge passage and the valve member.
      SOLUTION: The fuel injection valve is provided with a plate 26 having the discharge passage 262 at a center axis part, the valve members 34 and 36 to open/close the discharge passage 262, and a valve body 35 having a guide hole 351 at the center axis part for slidably holding the valve members 34 and 36. A taper surface 263 of the orifice plate 26 and a taper surface 353 of the valve body 35 are abutted on each other to bring the center axis of the orifice plate 26 to the center axis of the valve body 36 to each other.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种燃料喷射阀,其中排出通道被阀构件打开/关闭,能够容易地确保排出通道和阀构件中的同轴度。 解决方案:燃料喷射阀设置有在中心轴部具有排出通道262的板26,用于打开/关闭排出通道262的阀构件34和36以及具有引导孔的阀体35 351,用于可滑动地保持阀构件34和36.孔板26的锥形表面263和阀体35的锥形表面353彼此抵靠以使孔板26的中心轴线 相对于阀体36的中心轴线。 版权所有(C)2007,JPO&INPIT
    • 7. 发明专利
    • Fuel injection valve and method for controlling the injection amount
    • 燃油喷射阀和控制注射量的方法
    • JP2006307742A
    • 2006-11-09
    • JP2005131268
    • 2005-04-28
    • Denso Corp株式会社デンソー
    • ADACHI HISAFUMIUTSUNOMIYA ATSUSHITSUDA TOMOYOSHI
    • F02M61/16F02M47/00F02M47/02F02M51/00F02M51/06F02M61/10
    • PROBLEM TO BE SOLVED: To provide a fuel injection valve 1 and a method for controlling the injection amount, in which the volume amount of a pressure control chamber 26 can be easily controlled to increase or decrease, the lag adjustment of an injection start timing can be separately performed, and the variation of the injection amount is corrected accurately and quickly so as to improve the accuracy of the fuel injection amount in controlling the fuel injection amount.
      SOLUTION: In controlling the fuel injection amount, the number of a shim ring 49 going in and out of a pressure control chamber 26 is increased or decreased as the volume of the volume control means, so that the volume amount of the pressure control chamber 26 is easily adjusted, and the lag of the injection starting timing is adjusted so as to enable the correction of the variation of the injection amount occurred between individuals. In this case, since the number of the shim ring 49 for a support pin 48 of a control piston 21 can be determined only by the amount corresponding to the variation, and increased or decreased accurately and quickly, so that the fuel injection amount can be improved to be linked to the improvement of the productivity.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了提供燃料喷射阀1和控制喷射量的方法,其中压力控制室26的容积量可以容易地控制为增加或减少,喷射的滞后调节 可以分别执行启动定时,并且准确且快速地校正喷射量的变化,从而在控制燃料喷射量时提高燃料喷射量的精度。 解决方案:在控制燃料喷射量时,进入和离开压力控制室26的垫圈49的数量作为体积控制装置的体积增加或减小,使得压力的体积量 控制室26容易调整,并且调整喷射启动定时的滞后,以便能够校正个体之间发生的喷射量的变化。 在这种情况下,由于用于控制活塞21的支撑销48的垫环49的数量只能由与变化相对应的量确定,并且可以精确而快速地增加或减少,所以燃料喷射量可以是 改善与提高生产率有关。 版权所有(C)2007,JPO&INPIT
    • 8. 发明专利
    • Fuel injection device
    • 燃油喷射装置
    • JP2012122414A
    • 2012-06-28
    • JP2010273966
    • 2010-12-08
    • Denso Corp株式会社デンソー
    • YAMASHITA TSUKASAADACHI HISAFUMI
    • F02M47/00F02M47/06F02M61/16
    • PROBLEM TO BE SOLVED: To provide a fuel injection device for exhibiting excellent responsiveness and stable fuel injection characteristics.SOLUTION: This fuel injection device 10 includes a cylinder 80 for partitioning a pressure chamber 34 at the end of a nozzle needle 90. A floating plate 100 as a control member is arranged in the cylinder 80. A lower side end surface 104 of the floating plate 100 has a concave curved surface 106. The concave curved surface 106 crosses an outer peripheral surface 102, and forms a corner part 107. When the floating plate 100 abuts on a step difference surface 83, only a ridgeline of the corner part 107 abuts on the step difference surface 83. A contact surface can be reduced, responsiveness is enhanced, and stable fuel injection characteristics are attained.
    • 要解决的问题:提供一种用于表现出优异的响应性和稳定的燃料喷射特性的燃料喷射装置。 解决方案:该燃料喷射装置10包括用于在喷嘴针头90的端部处分隔压力室34的气缸80.作为控制构件的浮动板100布置在气缸80中。下侧端面104 浮动板100具有凹曲面106.凹曲面106与外周面102交叉,形成角部107.当浮板100抵接在台阶差面83上时,只有角部的棱线 部分107邻接台阶差面83.可以减小接触表面,提高响应性,并且获得稳定的燃料喷射特性。 版权所有(C)2012,JPO&INPIT
    • 9. 发明专利
    • Fuel injection device
    • 燃油喷射装置
    • JP2011190746A
    • 2011-09-29
    • JP2010057469
    • 2010-03-15
    • Denso Corp株式会社デンソー
    • KOBANE YOICHIADACHI HISAFUMIMATSUMOTO SHUICHI
    • F02M47/00F02M61/10
    • F02M47/027F02M63/0043
    • PROBLEM TO BE SOLVED: To improve the valve opening responsiveness and valve closing responsiveness of a nozzle needle 9. SOLUTION: Since the nozzle needle 9 includes a valve guide (the periphery of an axial projecting portion 16) reciprocatingly slidably guiding the valve 14 of an intermediate valve 14, the valve 14 of the intermediate valve is moved without being inclined to a specified valve moving direction. Accordingly, it is possible to surely close/open a fuel introducing flow passage (a fuel flow passage 31, an in-orifice 32, and an annular recessed groove 33). Also, it is possible to enlarge a gap 35 formed between the valve 14 of the intermediate valve and the valve storage recessed portion 57 of a cylinder 22. Herewith, since fuel pressure in a control chamber 12 is rapidly dropped, it is possible to improve the valve opening responsiveness of the nozzle needle 9. Also, since the fuel pressure in the control chamber 12 is rapidly increased, it is possible to improve the valve closing responsiveness of the nozzle needle 9. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提高喷嘴针9的开阀响应性和闭阀响应性。解决方案:由于喷嘴针9包括可往复地滑动的阀引导件(轴向突出部16的周边) 引导中间阀14的阀14,中间阀的阀14移动而不倾斜到指定的阀移动方向。 因此,能够可靠地关闭/打开燃料导入流路(燃料流路31,入口32,环状凹槽33)。 此外,可以扩大形成在中间阀的阀14和气缸22的阀存储凹部57之间的间隙35.因此,由于控制室12中的燃料压力迅速下降,因此可以提高 喷嘴针9的开阀响应性。此外,由于控制室12内的燃料压力急剧增加,因此能够提高喷嘴针9的关闭响应性。(C)2011年, JPO&INPIT
    • 10. 发明专利
    • Fuel injection device
    • 燃油喷射装置
    • JP2011012670A
    • 2011-01-20
    • JP2010030544
    • 2010-02-15
    • Denso Corp株式会社デンソー
    • ADACHI HISAFUMIMATSUMOTO SHUICHISUZUKI KEISUKETSUDA TOMOYOSHIKOBANE YOICHIOKUNO YOSHINORI
    • F02M61/10F02M47/00F02M59/46
    • F02M47/02F02M47/027F02M61/16
    • PROBLEM TO BE SOLVED: To provide a fuel injection device with an enhanced open/close response of a valve to a control signal from a control device.SOLUTION: A fuel injection device 100 includes inlets 52b and an outlet 54b which are opened at an opening wall surface 53b exposed to a pressure control chamber 53 formed in a control body 40, and a floating plate 70 which blocks the inlets 52b from the pressure control chamber 53 and the outlet 54b by pressing the opening wall surface 53b with a pressing surface 73 by using the pressure of the fuel where at least one out of an outlet periphery surface area 54d surrounding the outlet 54b on the opening wall surface 53b and an outlet facing surface area 74b facing the reciprocal displacement direction of the outlet periphery surface area 54d on the pressing surface 73 formes an outlet depression 74a, and where at least one out of an inlet periphery surface area 52d surrounding the inlet 52b and an inlet facing surface area 72b facing the reciprocal displacement direction to the inlet periphery surface area 52d on the pressing surface 73 forms an inlet depression 72a on the opening wall surface 53b.
    • 要解决的问题:提供一种具有阀门对来自控制装置的控制信号的增强的开/关响应的燃料喷射装置。解决方案:燃料喷射装置100包括入口52b和在开口处打开的出口54b 暴露于形成在控制体40中的压力控制室53的壁面53b,以及通过用按压面73按压开口壁面53b而将入口52b从压力控制室53和出口54b挡住的浮板70 使用燃料的压力,其中围绕开口壁表面53b上的出口54b的出口周边表面区域54d中的至少一个和面向出口侧表面区域74b的出口对向表面区域74b在压制时面向出口周边表面区域54d的往复移动方向 表面73形成出口凹部74a,并且其中围绕入口52b的入口周边表面区域52d中的至少一个和面向rec的入口面向表面区域72b 对按压表面73上的入口周边表面区域52d的位移方向在开口壁表面53b上形成入口凹部72a。