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    • 1. 发明专利
    • Fuel pump of direct injection internal combustion engine and method of controlling the same
    • 直喷式内燃机的燃油泵及其控制方法
    • JP2009127623A
    • 2009-06-11
    • JP2008107805
    • 2008-04-17
    • Hitachi Ltd株式会社日立製作所
    • BORG JONATHANBADARINARAYAN HARSHAMCCUNE D JWATANABE ATSUSHISHIRAISHI TAKUYASAIKALIS GEORGE
    • F02D41/20
    • F02M59/366F02M2200/09F04B49/243
    • PROBLEM TO BE SOLVED: To reduce the noise produced by the impact of a valve on a pump body during the opening/closing of the valve particularly in the low-speed range of an engine when the valve is held on the pump body movably between the open position and the closed position, and a valve head has a distance from a valve seat at the open position and abuts on the valve seat at the closed position to close the valve in the fuel pump of the direct injection internal combustion engine.
      SOLUTION: An electromagnetic coil moves the valve to the open position when energized, and to the closed position when deenergized. A control circuit so controls the electromagnetic coil that the energization and the deenergization of the electromagnetic coil can be performed gently. Consequently, the noise of the fuel pump can be reduced while the engine is operated, particularly, in the low-speed range.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了在阀门打开/关闭期间特别是发动机的低速范围内减小阀体对泵体的冲击所产生的噪音,当阀被保持在泵体上时 可移动地在打开位置和关闭位置之间,并且阀头在打开位置处具有与阀座的距离,并且在关闭位置处邻接阀座以关闭直喷式内燃机的燃料泵中的阀 。

      解决方案:电磁线圈在通电时将阀门移动到打开位置,并在断电时将其移动到关闭位置。 控制电路对电磁线圈进行控制,可以轻轻地进行电磁线圈的通电和断电。 因此,在发动机运转时,尤其是在低速范围内,燃料泵的噪声可以减小。 版权所有(C)2009,JPO&INPIT

    • 3. 发明专利
    • Control device and method for spark ignition internal combustion engine
    • 火花点火内燃机的控制装置和方法
    • JP2007192235A
    • 2007-08-02
    • JP2007117913
    • 2007-04-27
    • Hitachi Ltd株式会社日立製作所
    • FUJIEDA MAMORUNOGI TOSHIJIOYAMA TAKASHIGEOSUGA MINORUSHIRAISHI TAKUYA
    • F02D41/34F02B15/00F02B17/00F02B23/10F02D41/02F02D41/04F02D43/00
    • Y02T10/125
    • PROBLEM TO BE SOLVED: To enhance fuel consumption by eliminating pump loss through a laminar combustion under a partial load state, and increase the output through a premix combustion at the maximum output state. SOLUTION: The device is provided with an ignition source 14 in the vicinity of a fuel injection valve 13, and ignites air-fuel mixture after fuel injection, diffuses generated flame in a cylinder by spray of fuel and executes a laminar combustion in a partial load state. When the load is increased to produce soot or the like under the laminar combustion, fuel injection is performed several times. A premixture is formed in the cylinder through the first half injection. The premixture is burned in a short time by jetting a frame produced in the second half injection into a cylinder. By so doing, the device can reduce combustion time, prevent knocking, heighten a compression ratio of an engine, increase thermal efficiency and enhance fuel consumption. Production of unburnt hydrocarbon can be prevented by laminar intake. Responsiveness of fuel and operability are enhanced by the cylinder fuel injection. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:通过在部分负载状态下通过层状燃烧消除泵损耗来提高燃料消耗,并且通过在最大输出状态下的预混合燃烧来增加输出。 解决方案:设备在燃料喷射阀13附近设有点火源14,并且在燃料喷射之后点燃空气 - 燃料混合物,通过喷射燃料将产生的火焰扩散到气缸中,并执行层状燃烧 部分负载状态。 当在层流燃烧下增加负载以产生烟灰等时,进行燃料喷射几次。 通过前半注入在圆柱体中形成预混合物。 通过将在第二次注射中产生的框架喷射到气缸中,预混合物在短时间内燃烧。 通过这样做,该装置可以减少燃烧时间,防止爆震,提高发动机的压缩比,提高热效率和增加燃料消耗。 可以通过层流摄取来防止未燃烧的碳氢化合物的生产。 通过气缸燃料喷射可提高燃油响应性和可操作性。 版权所有(C)2007,JPO&INPIT
    • 5. 发明专利
    • Device for supplying fuel for automobile
    • 汽车供油设备
    • JP2005106067A
    • 2005-04-21
    • JP2005003940
    • 2005-01-11
    • Hitachi Ltd株式会社日立製作所
    • ISHIGA TAKUYAKOBAYASHI YOSHINOBUSHIRAISHI TAKUYANOGI TOSHIJI
    • F02M51/08F02M51/06F02M61/18F02M69/04
    • PROBLEM TO BE SOLVED: To improve combustion efficiency, and to purify exhaust by atomizing fuel for a cylinder injection type engine.
      SOLUTION: An atomizer 6 to be installed in a nozzle part 5 of a fuel injection valve 36 for the cylinder injection type engine has a flow passage enlarged part 8 enlarged in flow passage area than diameter of a nozzle hole 4 of the nozzle part 5 to reduce flowing speed of the fuel injected from the nozzle hole 4, a pair of an upper stage and a lower stage slits 9 and 10 having a flow passage area smaller than that of the flow passage enlarged part 8 and more one pair of an upper stage and a lower stage slits 9 and 10. The upper stage and the lower stage slits 9 and 10 of each pair cross each other to overlap with each other to form a fuel injection hole in a crossing part 35 thereof. Pressure of the fuel to be supplied to the fuel injection valve is 5MPa or more, and a heating means is provided to heat the high-pressure fuel.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了提高燃烧效率,并且通过雾化用于气缸喷射式发动机的燃料来净化排气。 解决方案:安装在用于气缸喷射式发动机的燃料喷射阀36的喷嘴部分5中的雾化器6具有比通过喷嘴的喷嘴孔4的直径扩大的流动通道面积的流路扩大部分8 部分5,以减少从喷嘴孔4喷射的燃料的流动速度,一对具有小于流路扩大部8的流路面积的上段和下段狭缝9和10,以及更多的一对 上段和下段狭缝9和10.每一对的上段和下段狭缝9和10彼此交叉以彼此重叠以在其交叉部分35中形成燃料喷射孔。 供给燃料喷射阀的燃料的压力为5MPa以上,并且设置有用于加热高压燃料的加热装置。 版权所有(C)2005,JPO&NCIPI
    • 8. 发明专利
    • Control device and method for spark ignition internal combustion engine
    • 火花点火内燃机的控制装置和方法
    • JP2007192234A
    • 2007-08-02
    • JP2007117912
    • 2007-04-27
    • Hitachi Ltd株式会社日立製作所
    • FUJIEDA MAMORUNOGI TOSHIJIOYAMA TAKASHIGEOSUGA MINORUSHIRAISHI TAKUYA
    • F02D41/34F02D41/02F02D41/04F02D45/00
    • Y02T10/125Y02T10/144
    • PROBLEM TO BE SOLVED: To enhance a fuel consumption by eliminating a pump loss through a laminar combustion under a partial load state, and increase the output through a premix combustion at the maximum output. SOLUTION: The device is provided with an ignition source 14 in the vicinity of a fuel injection valve 13, and ignites air-fuel mixture after fuel injection, diffuses generated flame in a cylinder by spray of fuel and executes laminar combustion in a partial load state. When the load is increased to produce soot or the like under the laminar combustion, fuel injection is performed several times. A premixture is formed in the cylinder through the first half injection. The premixture is burned in a short time by jetting a frame produced in the second half injection into a cylinder. By so doing, the device can reduce combustion time, prevent knocking, heighten a compression ratio of an engine, increase thermal efficiency and enhance fuel consumption. Production of unburnt hydrocarbon can be prevented by laminar intake. Responsiveness of fuel and operability are enhanced by the cylinder fuel injection. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:通过在部分负载状态下通过层状燃烧消除泵损耗来提高燃料消耗,并且通过最大输出处的预混合燃烧来增加输出。 解决方案:设备在燃料喷射阀13附近设有点火源14,并且在燃料喷射之后点燃空气 - 燃料混合物,通过喷射燃料将产生的火焰扩散到气缸中,并且在 部分负载状态。 当在层流燃烧下增加负载以产生烟灰等时,进行燃料喷射几次。 通过前半注入在圆柱体中形成预混合物。 通过将在第二次注射中产生的框架喷射到气缸中,预混合物在短时间内燃烧。 通过这样做,该装置可以减少燃烧时间,防止爆震,提高发动机的压缩比,提高热效率和增加燃料消耗。 可以通过层流摄取来防止未燃烧的碳氢化合物的生产。 通过气缸燃料喷射可提高燃油响应性和可操作性。 版权所有(C)2007,JPO&INPIT