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    • 2. 发明专利
    • Fuel injection device of internal combustion engine
    • 内燃机燃油喷射装置
    • JP2013167190A
    • 2013-08-29
    • JP2012030298
    • 2012-02-15
    • Nippon Soken Inc株式会社日本自動車部品総合研究所Toyota Motor Corpトヨタ自動車株式会社
    • SAITO TORUAMANO NORIYASUTAKAHASHI JUNPEI
    • F02M53/04F02M51/04F02M55/00
    • PROBLEM TO BE SOLVED: To eliminate harmful effects caused by steam of fuel entering a fuel pump 11, while cooling a nozzle 36a of an injector 36 for intake-port injection with the fuel after a stop of an engine 1 to allow formation of deposits to be effectively prevented.SOLUTION: A fuel injection device includes an injector 36 and a fuel pump 11 that supplies fuel to the injector via a fuel supply pipe 10. The fuel injection device includes: a cooling passage 37a that communicates with the fuel supply pipe 10 and cools a nozzle 36a of the injector 36 with circulating fuel; a return pipe 14 for returning fuel to a side of the fuel pump 11; and an electromagnetic valve 15 (on-off valve) that is openable and closable between the fuel supply pipe 10 and the cooling passage 37a. The fuel pump 11 is activated, and the electromagnetic valve 15 is opened to circulate fuel to the cooling passage 37a, during a predetermined period after a stop of an engine. After the predetermined period elapses, the fuel pump 11 is stopped and the electromagnetic valve 15 is closed.
    • 要解决的问题:为了消除进入燃料泵11的燃料的蒸气引起的有害影响,同时在发动机1停止之后,用燃料进行进气口喷射的喷射器36的喷嘴36a进行冷却,以形成沉积物 燃料喷射装置包括:喷射器36和经由燃料供给管10向喷射器供给燃料的燃料泵11.燃料喷射装置包括:与燃料供给管10连通的冷却通路37a 并用循环燃料冷却喷射器36的喷嘴36a; 用于将燃料返回到燃料泵11的一侧的回流管14; 以及能够在燃料供给管10和冷却通路37a之间开闭的电磁阀15(开关阀)。 在发动机停止之后的预定时间段期间,燃料泵11被启动,电磁阀15打开以使燃料循环到冷却通道37a。 经过预定时间后,燃料泵11停止,电磁阀15关闭。
    • 3. 发明专利
    • Fuel injection valve of internal combustion engine
    • 内燃机燃油喷射阀
    • JP2012251515A
    • 2012-12-20
    • JP2011126315
    • 2011-06-06
    • Nippon Soken Inc株式会社日本自動車部品総合研究所Toyota Motor Corpトヨタ自動車株式会社
    • SAITO TORUSUGIYAMA NATSUKI
    • F02M61/18F02M61/10
    • PROBLEM TO BE SOLVED: To provide a fuel injection valve of an internal combustion engine, which has a structure capable of suppressing deposition of a combustion product on an injection hole provided and deflected by a predetermined angle from the center axis of a nozzle body.SOLUTION: With the lift operation of a needle valve 20 supported to be operable to lift in a nozzle body 10, fuel to be filled in and supplied to the nozzle body 10 is injected and supplied to an internal combustion engine through an injection hole 10H. The injection hole 10H is formed in a sack part 11 having a space to be a receiving part of fuel inside the tip end of the nozzle body 10, in such a form that the injection hole is deflected from a common center axis CL1 of the nozzle body 10 and the needle valve 20. The volume formed by the space shape of the sack part 11 and by the tip end shape of the needle valve 20 is controlled in such a manner that a volume in a side where the injection hole 10H is present with respect to the common center axis CL1 of the nozzle body 10 and of needle valve 20 is smaller than a volume in a side where the injection hole 10H is not present with respect to the common center axis CL1.
    • 要解决的问题:提供一种内燃机的燃料喷射阀,其具有能够抑制燃烧产物沉积在从喷嘴的中心轴设置并偏转预定角度的喷射孔中的结构 身体。 解决方案:通过支撑可操作以在喷嘴体10中提升的针阀20的提升操作,将要填充并供应到喷嘴体10的燃料通过注射喷射并供应到内燃机 孔10H。 喷射孔10H形成在具有作为喷嘴体10的前端内的燃料的容纳部的空间的袋部11中,喷射孔10从喷嘴的共同的中心轴线CL1偏转 主体10和针阀20.由袋部件11的空间形状和针阀20的顶端形状形成的容积以这样的方式进行控制,使得存在喷射孔10H的一侧的体积 相对于喷嘴体10和针阀20的公共中心轴线CL1小于相对于公共中心轴线CL1不存在喷射孔10H的一侧的体积。 版权所有(C)2013,JPO&INPIT
    • 7. 发明专利
    • Fuel addition control device for exhaust purifying catalyst
    • 用于排气净化催化剂的燃油添加控制装置
    • JP2013050103A
    • 2013-03-14
    • JP2012168678
    • 2012-07-30
    • Nippon Soken Inc株式会社日本自動車部品総合研究所Toyota Motor Corpトヨタ自動車株式会社
    • SAITO TORUOHARA YASUSHIAMANO NORIYASUOKIMURA MINORU
    • F01N3/36
    • PROBLEM TO BE SOLVED: To provide a fuel addition device for a catalyst for purifying exhaust capable of improving fuel economy while maintaining a deposit removal function of a fuel addition valve.SOLUTION: A fuel addition control device controls a fuel addition interval by the fuel addition valve 42 for adding fuel to an exhaust purifying catalyst 20 provided in an exhaust pipe 12 of a diesel engine 10 according to an operation state of the diesel engine 10. Specifically, the fuel addition control device controls drive of the fuel addition valve 42 in either one mode of two modes according to pressure valve in an exhaust passage 12a provided with the fuel addition valve 42. Of the two modes, one mode is a mode to correct so that the fuel addition interval by the fuel addition valve 42 is extended as a pressure measurement value is lower if the pressure value is, for example, higher than 50 kPa, and the other mode is a mode to set so as to prohibit fuel addition by the fuel addition valve 42 if the pressure value is, for example, 50 kPa or below.
    • 要解决的问题:提供一种用于净化排气的催化剂的燃料添加装置,其能够在保持燃料添加阀的沉积物去除功能的同时提高燃料经济性。 解决方案:燃料添加控制装置通过燃料添加阀42控制燃料添加间隔,用于根据柴油发动机的运行状态向设置在柴油发动机10的排气管12中的排气净化催化剂20添加燃料 具体地,燃料添加控制装置根据设置有燃料添加阀42的排气通道12a中的压力阀,以两种模式的一种模式来控制燃料添加阀42的驱动。在这两种模式中,一种模式是 模式进行校正,使得如果压力值例如高于50kPa,则燃料添加阀42的燃料添加间隔作为压力测量值较低,并且另一模式是设定为 如果压力值例如为50kPa以下,则禁止燃料添加阀42的燃料添加。 版权所有(C)2013,JPO&INPIT
    • 8. 发明专利
    • Exhaust emission control device for internal combustion engine
    • 用于内燃机的排气排放控制装置
    • JP2011241783A
    • 2011-12-01
    • JP2010116219
    • 2010-05-20
    • Nippon Soken IncToyota Motor Corpトヨタ自動車株式会社株式会社日本自動車部品総合研究所
    • FUJIMOTO TAKESHISAITO TORUOMICHI SHIGEKIOKIMURA MINORU
    • F01N3/08B01D53/94F01N3/023F01N3/025F01N3/029F01N3/24F01N3/36F02D45/00
    • PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine which can maintain the reliability of an addition valve by preventing the generation of a deposit around the addition valve.SOLUTION: An oxidation catalyst with a heater 6 is disposed at an upstream side of a fuel addition valve 5 in the exhaust emission control device where the fuel addition valve 5 is provided at an upstream side of an exhaust emission control unit 7. When a detected or estimated exhaust gas temperature exceeds a predetermined temperature, a heating operation by the oxidation catalyst with a heater 6 is not executed. When the exhaust gas temperature is equal to or lower than the predetermined temperature, the heating operation by the oxidation catalyst with the heater 6 is executed to raise the exhaust gas temperature. Consequently, a formic acid in the exhaust gas is decomposed and the generation of the deposit around the addition valve 5 is prevented.
    • 要解决的问题:提供一种内燃机的废气排放控制装置,其能够通过防止在加法阀附近产生沉积而保持加法阀的可靠性。 解决方案:具有加热器6的氧化催化剂设置在排气排放控制装置中的燃料添加阀5的上游侧,其中燃料添加阀5设置在废气排放控制单元7的上游侧。 当检测或估计的废气温度超过预定温度时,不执行通过加热器6的氧化催化剂的加热操作。 当废气温度等于或低于预定温度时,执行利用加热器6的氧化催化剂的加热操作以提高废气温度。 因此,废气中的甲酸被分解,并且防止了添加阀5周围的沉积物的产生。 版权所有(C)2012,JPO&INPIT
    • 9. 发明专利
    • Fuel jet nozzle
    • 燃油喷嘴
    • JP2010084755A
    • 2010-04-15
    • JP2009077460
    • 2009-03-26
    • Nippon Soken Inc株式会社日本自動車部品総合研究所
    • KATO TAKEHIKONISHIWAKI TOYOJISUZUKI TAKASHISAITO TORU
    • F02M61/18
    • PROBLEM TO BE SOLVED: To provide a fuel jet nozzle which attains atomization of a jetted fuel by enhancing split force of the fuel jetted from a slit jet hole.
      SOLUTION: A plurality of grooves 22 for generating a disordered flow of the fuel passing through the slit jet hole 6 are formed on the inner wall of the slit jet hole 6 of the fuel jet nozzle. The split force of the fuel jetted from an outlet of the jet hole outlet can be enhanced by generating the disordered flow of the fuel passing through the slit jet hole 6 with the plurality of grooves 22. Concretely, the disordered flow of the fuel is actively generated in a direction orthogonal to the advancing direction of the fuel against the flow of the fuel passing through the slit jet hole 6 by using a level difference at a groove starting edge, split force of the fuel jetted from the outlet of the jet hole can be enhanced by giving four directional components to a vector component of the fuel flowing inside the slit jet hole 6, and the atomization of the jetted fuel can be accelerated.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种燃料喷嘴,其通过增加从狭缝喷射孔喷射的燃料的分流力来实现喷射燃料的雾化。 解决方案:在燃料喷嘴的狭缝喷射孔6的内壁上形成有用于产生通过狭缝喷射孔6的燃料的无序流动的多个凹槽22。 可以通过产生穿过狭缝喷射孔6的多个槽22的燃料的无序流动来增强从喷射出口出口喷射的燃料的分离力。具体地,燃料的无序流动是积极的 相对于通过狭缝喷射孔6的燃料的流动,通过使用槽起始边缘处的高度差,在与燃料的前进方向正交的方向上产生的燃料的流动,从喷射孔的出口喷射的燃料的分离力 通过向在狭缝喷射孔6内流动的燃料的矢量分量赋予四个方向分量来增强,并且可以加速喷射的燃料的雾化。 版权所有(C)2010,JPO&INPIT
    • 10. 发明专利
    • Fluid control valve
    • 流体控制阀
    • JP2014169668A
    • 2014-09-18
    • JP2013042516
    • 2013-03-05
    • Denso Corp株式会社デンソーNippon Soken Inc株式会社日本自動車部品総合研究所
    • KOBAYASHI TAKASHISUNAMI KAZUOSAITO TORU
    • F02M25/07F16K31/04F16K41/04
    • Y02T10/121
    • PROBLEM TO BE SOLVED: To solve a problem that, since a conventional EGR control valve employs an expensive PTFE seal as condensed-water intrusion prevention means for a bearing, the number of part items and man-hours become large, thus causing a cost increase.SOLUTION: An EGR control valve has at least one or more radial holes 71 for leveling a pressure difference between an A-point and a B-point around an output shaft 5 at a first protrusive shaft part 41 of the output shaft 5 which forms a clearance part 62 between a throttle wall 65 of a hosing 4 and itself, or at a large-diameter shaft part 43. By this constitution, the pressure difference in a shaft circumferential direction at the clearance part 62 formed between an internal peripheral of the throttle wall 65 of the housing 4 and an external periphery of the first protrusive shaft part 41 of the output shaft 5 is eliminated. As a result, even if the expensive PTFE seal is abolished, condensed water does not intruded into a bearing hole 61 from passage holes 22, 23 of the housing 4.
    • 要解决的问题:为了解决现有的EGR控制阀采用昂贵的PTFE密封作为轴承的冷凝水入侵防止装置的问题,因此部件数量和工时变大,因此成本上升 。解决方案:EGR控制阀具有至少一个或多个径向孔71,用于在输出轴5的第一突出轴部分41处平衡输出轴5周围的A点和B点之间的压力差,形成 在连接件4的节流壁65与其自身之间的间隙部分62或大直径轴部分43处的间隙部分62.通过这种结构,在间隙部分62处的轴周向上的压力差形成在 消除了壳体4的节流壁65和输出轴5的第一突出轴部41的外周。 结果,即使昂贵的PTFE密封件被消除,冷凝水也不会从壳体4的通孔22,23进入到轴承孔61中。