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    • 1. 发明专利
    • Fuel injection nozzle
    • 燃油喷射喷嘴
    • JP2006070814A
    • 2006-03-16
    • JP2004255499
    • 2004-09-02
    • 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
    • KOIE KAZUTOSHINOMURA SHIGEOOKAJIMA MASAHIROMIYOSHI SHINJIGOTO MORIYASUTOMITA HIROKUNIMASUDA MAKOTO
    • F02M61/18F02M61/10
    • PROBLEM TO BE SOLVED: To provide a fuel injection nozzle 1 capable of preventing leak of fuel from a second injection hole 8 at a time of low lift of a needle 3 and reducing dead volume in a suck chamber 9.
      SOLUTION: A projection end part 14 entering the suck chamber 9 of a nozzle body 2 is provided on a tip part of the needle 3, and a recess groove 14a is formed on an outer circumference surface of the projection end part 14. A valve member 4 is provided in a space formed between an inner circumference surface of the suck chamber 9 and the recess groove 14a, and is arranged close to an inlet of the second injection hole 8. Negative pressure is generated when fuel of high speed passes through a narrow gap between the valve element 4 and the second injection hole 8 at a time of low lift of the needle 3 and the negative pressure acts as force pulling the valve member 4 to the inlet of the second injection hole 8. Consequently, since the valve member 4 is pressed against the inlet of the second injection hole by pressure difference acting on the valve member 4 when the valve element 4 closes the inlet of the second injection hole 8, the inlet of the valve member 4 of the second injection hole 8 is surely closed by the valve member 4.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种燃料喷射喷嘴1,其能够在针3的低升程时防止来自第二喷射孔8的燃料泄漏并减少吸入室9中的死体积。 解决方案:在针3的前端部设有进入喷嘴体2的吸入室9的突出端部14,在突出端部14的外周面形成有凹槽14a。阀构件 4设置在吸入室9的内周面和凹槽14a之间形成的空间中,并且配置在靠近第二喷射孔8的入口的位置。当高速燃料通过狭窄状态时,产生负压 在针3的低升程时阀元件4和第二喷射孔8之间的间隙作为将阀构件4吸引到第二喷射孔8的入口的力的作用力。因此,由于阀构件 4压入入口o 当阀元件4关闭第二喷射孔8的入口时,通过作用在阀构件4上的压力差的第二喷射孔,第二喷射孔8的阀构件4的入口被阀构件4确实地封闭 (C)2006年,JPO&NCIPI
    • 2. 发明专利
    • The valve opening and closing control device
    • 阀门开启和关闭控制装置
    • JP2007231826A
    • 2007-09-13
    • JP2006054335
    • 2006-03-01
    • 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
    • NAKAYAMA YOSHINORIMIYOSHI SHINJINANBA KUNIO
    • F02M25/07F02D9/02F02D9/10F02D11/10F16K1/22
    • Y02T10/121
    • PROBLEM TO BE SOLVED: To prevent locking of a butterfly valve 1 due to deposit. SOLUTION: A position of a seal ring seat surface 7 on which a seal ring slide surface 4 of a seal ring 3 fitted and retained in a seal ring groove 2 of a butterfly valve 1 abuts (adheres) when the butterfly valve 1 is stopped at a valve full close position after engine stop is established at a position higher than a first and a second channel wall surfaces 21, 22 of a housing 5. Namely, an inner circumference projection 6 and two of first and second stepped surfaces 31, 32 for giving an appropriate height difference between the seal ring seat surface 7 of the housing 5 and the first and the second channel wall surfaces 21, 22 are provided on a part of a channel wall surface of an exhaust gas circulation path 10 in which EGR gas flows. Consequently, deposit scratched off from a section near the valve full close position by deposit scratch off action at the time of engine stop is prevented from adhering again on the butterfly valve 1, the seal ring 3 and the seal ring seat surface 7. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:防止由于沉积物而导致的蝶阀1的锁定。 解决方案:当蝶形阀1的密封环1的密封环3的密封环滑动表面4装配并保持在蝶阀1的密封环槽2中时,密封环座表面7的位置邻接(粘附) 在高于壳体5的第一和第二通道壁面21,22的位置处建立发动机停止之后,在阀全闭​​合位置停止。即,内周突起6和第一和第二台阶表面31中的两个 在排气循环路径10的通道壁面的一部分设置有用于在壳体5的密封环座面7与第一和第二通道壁面21,22之间赋予适当的高度差的32,其中 EGR气体流动。 因此,防止在发动机停止时通过沉积物刮除动作从靠近阀门完全关闭位置的部分刮下的沉积物再次粘附在蝶阀1,密封环3和密封环座表面7上。

      版权所有(C)2007,JPO&INPIT

    • 3. 发明专利
    • Fuel injection nozzle
    • 燃油喷射喷嘴
    • JP2006118420A
    • 2006-05-11
    • JP2004306635
    • 2004-10-21
    • 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
    • NOMURA SHIGEOOKAJIMA MASAHIROKOIE KAZUTOSHIMIYOSHI SHINJIGOTO MORIYASUTOMITA HIROKUNI
    • F02M61/18F02M61/10
    • PROBLEM TO BE SOLVED: To reduce the possibility of fuel leak by improving sealing performance of a second injection hole 3 which is opened and closed in a slide manner in a fuel injection nozzle 1.
      SOLUTION: The nozzle 1 is provided with a body 4 including the second injection hole 3 opened and closed in the slide manner and a needle 5 opening and closing a first and the second injection hole 2, 3. The second injection hole 3 is opened while a needle side slide part (an outer circumference surface 26 of a sliding member 25) slides on a body side sliding part (notched circumference surface 23). The needle side slide part and the body side slide part are pressed against each other by elastic force of a spring 32 energizing the sliding member 25 in a radial direction. As a result, the needle side sliding part can be concentratedly pressed against the body side sliding part on which an opening part 31 of the second injection hole 3 is provided. Consequently, fuel penetrates in a gap between the needle side sliding part and the body side sliding part to reduce the possibility of fuel leak from the second injection hole 3.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:通过提高在喷射喷嘴1中以滑动的方式打开和关闭的第二喷射孔3的密封性能来降低燃料泄漏的可能性。解决方案:喷嘴1是 设置有包括以滑动方式打开和关闭的第二注入孔3的主体4和打开和关闭第一和第二注入孔2,3的针5.第二注入孔3打开,而针侧滑动部 滑动构件25的外周面26)在主体侧滑动部(切口圆周面23)上滑动。 针侧滑动部和主体侧滑动部通过使径向滑动部件25通电的弹簧32的弹力而彼此挤压。 结果,针侧滑动部可以集中地压靠在其上设置有第二喷射孔3的开口部31的主体侧滑动部。 因此,燃料在针侧滑动部和主体侧滑动部之间的间隙中渗透,以减少燃料从第二喷射孔3泄漏的可能性。(C)2006,JPO&NCIPI
    • 4. 发明专利
    • Electromagnetic actuator
    • 电磁致动器
    • JP2004088891A
    • 2004-03-18
    • JP2002245701
    • 2002-08-26
    • 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
    • TOMITA HIROKUNIENOMOTO SHIGEIKUMIYOSHI SHINJIYAMAMOTO YOSHIHISAKATO MASAAKI
    • F02M21/02F02M37/00F02M51/06H02K33/02
    • Y02T10/123Y02T10/32
    • PROBLEM TO BE SOLVED: To provide an electromagnetic actuator for enhancing responsiveness by using a sintered magnetic material which is brittle and easy to damage as a material of a stator and for preventing the damage of the sintered magnetic material which releases a collision energy, generated when the stator attracts an armature, to the housing.
      SOLUTION: The stator 33 includes a main stator 36 made of the sintered magnetic material, and a sub-stator 37 made of a soft magnetic material. The armature 35 collides with the sub-stator 37. Since this collision energy is released to the housing 34, the damage of the main stator 36 made of the sintered magnetic material is prevented. Since the stator 36 made of the sintered magnetic material has a structure which is inserted between the first and second sub-stators 41 and 42, even if the stator 36 is made of the sintered magnetic material difficult to be assembled with the stator 36, the stator 36 can be assembled with an injector 1. Since the stator 36 is made of the sintered magnetic material in which eddy current little occurs, its eddy current loss is small, and high responsiveness is obtained.
      COPYRIGHT: (C)2004,JPO
    • 要解决的问题:提供一种电磁致动器,其通过使用脆性容易损坏的烧结磁性材料来提高响应性,并且能够防止发生碰撞能量的烧结磁性材料的损坏 ,当定子吸引电枢时产生。 解决方案:定子33包括由烧结磁性材料制成的主定子36和由软磁材料制成的子定子37。 衔铁35与副定子37碰撞。由于该碰撞能量被释放到壳体34,所以防止了由烧结磁性材料制成的主定子36的损坏。 由于由烧结磁性材料制成的定子36具有插入在第一和第二分支41和42之间的结构,所以即使定子36由难以与定子36组装的烧结磁性材料制成, 定子36可以与喷射器1组装在一起。由于定子36由涡流少的发生烧结磁性材料制成,所以其涡流损耗小,获得高的响应性。 版权所有(C)2004,JPO
    • 5. 发明专利
    • Fuel injection nozzle, fuel injection valve, and fuel injection device
    • 燃油喷射喷嘴,燃油喷射阀和燃油喷射装置
    • JP2006220129A
    • 2006-08-24
    • JP2005036672
    • 2005-02-14
    • 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
    • GOTO MORIYASUTOMITA HIROKUNIMIYOSHI SHINJINOMURA SHIGEOOKAJIMA MASAHIROKOIE KAZUTOSHI
    • F02M61/10F02M47/00F02M51/06F02M61/16F02M61/18
    • PROBLEM TO BE SOLVED: To reduce complication in manufacture without reducing seating property between an outer needle 14 and a nozzle body 59 in a fuel injection nozzle 1 of variable injection hole type.
      SOLUTION: In this outer needle 14, a second outer side seat part 64 is provided on a tip side more than a through hole 71 to open and close a second injection hole 12, and a peripheral channel 72 is provided on a tip side of the second outer side seat part 64. Consequently, the vicinity of the second outer side seat part 64 is likely to cause elastic deformation by energizing force due to back pressure. For this reason, the second outer side seat part 64 is hard pressed against a second outer side seat face 66 to shut off between an outer side accumulation part 60 and the second injection hole 12 securely. As a result, seating property for the second injection hole 12 can be maintained or reinforced by merely applying simple work for providing the channel 72. As a result, complication in manufacture for maintaining or reinforcing the seating property for the second injection hole 12 can be reduced.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了减少制造中的复杂性,而不会降低可变喷射孔类型的燃料喷射喷嘴1中的外针14和喷嘴体59之间的就座性。 解决方案:在该外针14中,第二外侧座部64设置在比通孔71更靠前端的一侧,以打开和关闭第二喷射孔12,并且在尖端 因此,第二外侧座部64的附近容易由于背压引起的作用力引起弹性变形。 因此,第二外侧座部64被紧压在第二外侧座面66上,从而可靠地切断外侧蓄积部60和第二喷射孔12。 结果,通过仅仅施加用于提供通道72的简单工作,可以维持或增强用于第二喷射孔12的座椅特性。结果,用于维持或加强第二喷射孔12的座椅特性的制造中的复杂性可以是 降低。 版权所有(C)2006,JPO&NCIPI
    • 6. 发明专利
    • Fuel injection nozzle
    • 燃油喷射喷嘴
    • JP2006207517A
    • 2006-08-10
    • JP2005022499
    • 2005-01-31
    • 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
    • NOMURA SHIGEOOKAJIMA MASAHIROKOIE KAZUTOSHIMIYOSHI SHINJIGOTO MORIYASUTOMITA HIROKUNI
    • F02M61/18F02M61/10
    • PROBLEM TO BE SOLVED: To provide a fuel injection nozzle atomizing injected fuel without enlarging a size of a needle and suppressing drop in penetration accompanying atomization.
      SOLUTION: The fuel injection nozzle 4 is provided with a first valve seat part 30 on an inner wall surface thereof, a second valve seat part 31 positioned on fuel downstream side of the first valve seat part 30, a nozzle body 5 having a plurality of injection hole groups composed of a plurality of injection holes 11, 12 penetrating from an inner wall surface toward outer wall surface formed thereon, and a needle 60 including a first and a second abutment part 61, 62 reciprocatingly and slidably supported by the nozzle body 5 and seated on and separated from the first and the second valve seat part 30, 31 respectively. Inlet parts 13, 14 of the plurality of injection holes are formed closely in series along an axial direction of the nozzle body 5 between the first and the second valve seat part 30, 31. Opening shape thereof is a circle or a polygon aspect ratio of which is greater than 1.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供喷射喷嘴雾化喷射燃料而不扩大针的尺寸并且抑制伴随雾化的渗透下降。 解决方案:燃料喷射喷嘴4在其内壁表面上设置有第一阀座部30,位于第一阀座部30的燃料下游侧的第二阀座部31,具有 由多个从内壁表面朝向形成在其上的外壁表面的喷射孔11,12组成的喷射孔组以及包括第一和第二邻接部分61,62的针头60,该第一和第二邻接部分61,62由 喷嘴主体5,分别位于第一和第二阀座部分30,31上并分离。 多个喷射孔的入口部13,14在第一和第二阀座部30,31之间沿着喷嘴体5的轴向紧密地形成为串联连接。其开口形状为圆形或多边形纵横比 大于1.版权所有(C)2006,JPO&NCIPI
    • 7. 发明专利
    • Fuel injection nozzle
    • 燃油喷射喷嘴
    • JP2006057622A
    • 2006-03-02
    • JP2004291107
    • 2004-10-04
    • 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
    • NOMURA SHIGEOOKAJIMA MASAHIROKOIE KAZUTOSHISEKIJIMA HITOSHIMIYOSHI SHINJIGOTO MORIYASUTOMITA HIROKUNI
    • F02M59/46F02M61/10
    • PROBLEM TO BE SOLVED: To provide a constitution capable of preventing fuel leakage from a first nozzle hole by securely sealing upstream and downstream sides of the first nozzle hole at the time of closing of needles, in a two-needle type fuel injection nozzle in which the outer needle is lifted prior to the inner needle to open the first nozzle hole and then the inner needle is lifted to open a second nozzle hole.
      SOLUTION: The fuel injection nozzle is provided with the outer needle 2 involved in injection start and injection completion from the first nozzle hole 6 and the inner needle 3 involved in injection start and injection completion from the second nozzle hole 7. A small diameter opening part side of a belleville spring 4 is fixed to the lower end face of the outer needle 2 around the perimeter, and the belleville spring 4 is held in the state that it is pressed between the lower end face of the outer needle 2 and a second seat face 10, when the outer needle 2 is closed. At this time, since the periphery of the large diameter opening part of the belleville spring 4 is closely contacted with the second seat face 10, the belleville spring 4 liquid-tightly blocks off a space between a clearance C secured between the outer needle 2 and the inner needle 3 and the first nozzle hole 6. This prevents fuel flowed out from the clearance C from being flowed out to outside of the belleville spring 4. Therefore, fuel leakage from the first nozzle hole 6 can be prevented.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种能够通过在关闭针时可靠地密封第一喷嘴孔的上游侧和下游侧来防止燃料从第一喷嘴孔泄漏的结构,在双针型燃料喷射 喷嘴,其中外针在内针之前被提起以打开第一喷嘴孔,然后提升内针以打开第二喷嘴孔。 解决方案:燃料喷射喷嘴从第二喷嘴孔7的第一喷嘴孔6和涉及注射开始和喷射完成的内针3设置有涉及注射开始和注射完成的外针2。 圆锥形弹簧4的直径开口部分侧围绕外周固定到外针2的下端面,并且保持壳体弹簧4处于外针2的下端面和 第二座面10,当外针2关闭时。 此时,由于贝氏弹簧4的大直径开口部的周缘与第二座面10紧密接触,所以,贝氏弹簧4液密地堵住固定在外针2和 内针3和第一喷嘴孔6.这防止从间隙C流出的燃料流出到贝氏弹簧4的外部。因此,可以防止从第一喷嘴孔6泄漏燃料。 版权所有(C)2006,JPO&NCIPI
    • 8. 发明专利
    • Fuel injection valve intensifying device
    • 燃油喷射阀加热装置
    • JP2005240684A
    • 2005-09-08
    • JP2004052010
    • 2004-02-26
    • 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
    • MIYOSHI SHINJITOMITA HIROKUNIENOMOTO SHIGEIKUYAMAMOTO YOSHIHISA
    • F02M47/00F02M47/02F02M51/00
    • PROBLEM TO BE SOLVED: To provide a fuel injection valve intensifying device for suppressing a change in intensifying cycle due to instable operation of an intensifying control valve while reducing driving loss by quickly removing an oil film during closing the intensifying control valve and closing the valve before affected by pressure pulsation. SOLUTION: The device comprises an intensifier 4 for intensifying the pressure of fuel supplied from a common rail 10 to an intensifying chamber 46 with the drive of an intensifying piston 41 and the intensifying control valve 1 for controlling the intensifying operation of the intensifier. A valve element 3 of the intensifying control valve 1 as a two-position three-way valve has a taper seat portion 31 for opening/closing operation between the intensifying control chamber 44 and the common rail 10 ranging to the intensifying chamber 46 and a ring seat portion 32 for opening/closing operation between the intensifying control chamber 44 and a return passage 1c. The ring seat portion 32 as an approximately planar seat formed on the end face of the valve element 3 in the moving direction has a sharp seat surface abutting portion 32a provided at the outer peripheral edge in the form of somewhat sloping to a seat surface 34 for increasing bearing pressure. COPYRIGHT: (C)2005,JPO&NCIPI
    • 解决方案:提供一种燃料喷射阀增压装置,用于抑制由于增压控制阀的不稳定操作引起的增压循环变化,同时通过在关闭增压控制阀并关闭期间快速除去油膜而减少驱动损失 阀门受压脉动影响。 解决方案:该装置包括增压器4,用于通过增压活塞41的驱动和用于控制增压器的增强操作的增压控制阀1来增强从共轨10供应到增压室46的燃料的压力 。 作为两位三通阀的增压控制阀1的阀元件3具有锥形座部31,用于在增强控制室44和与强化室46对应的共轨10之间进行打开/关闭操作, 座部32,用于在增强控制室44和返回通道1c之间进行打开/关闭操作。 作为形成在阀元件3的移动方向的端面上的近似平面的座的环座部分32具有尖锐的座面抵接部分32a,其设置在外周边缘处,稍微倾斜到座面34, 增加轴承压力。 版权所有(C)2005,JPO&NCIPI