TWO-PHASE FUEL INJECTION VALVE FOR DIESEL ENGINE AND GAS ENGINE INCLUDING NOZZLE HAVING PUMPING FUNCTION
    1.
    发明公开
    TWO-PHASE FUEL INJECTION VALVE FOR DIESEL ENGINE AND GAS ENGINE INCLUDING NOZZLE HAVING PUMPING FUNCTION 审中-公开
    两相喷射器的柴油发动机和燃气轮机的喷嘴泵功能

    公开(公告)号:EP2610477A1

    公开(公告)日:2013-07-03

    申请号:EP10854166.5

    申请日:2010-10-28

    摘要: The present invention relates to a dual fuel injection valve having a pumping nozzle for a diesel engine and a gas engine, and an objective of the present invention is to provide a fuel injection valve in which, by using two kinds of fuel entering into a fuel valve, a warming up and injection of pilot fuel may be performed in an initial injection and injection of main fuel may be performed subsequently such that subsequent dual fuel is used for combustion, thereby increasing fuel injection performance.
    In a fuel injection valve for a diesel engine or a gas engine for injecting fuel to a cylinder, provided is a dual fuel injection valve having a pumping nozzle for the diesel engine and the gas engine including: the dual fuel injection valve including a fuel valve block (110) in which a fuel passage to which first and secondary fuel is introduced through a high pressure pipe is formed inside thereof, the first and secondary fuel being the same fuel system or different fuel systems; a cylinder/needle valve (506) which moves upward by a pressure difference of the secondary fuel introduced through the fuel passage formed in the fuel valve block (110) to inject the primary fuel to a pilot nozzle hole; and a main needle valve (143) which, after injecting the primary fuel by pressing the cylinder/needle valve (506), moves upward by the pressure difference of the secondary fuel introduced through a connected fuel passage to inject the primary fuel to a main nozzle hole (161).

    TWO-STAGE FUEL INJECTION VALVE FOR A DIESEL ENGINE, COMPRISING A SOLENOID VALVE AND A SHUTTLE VALVE
    2.
    发明公开
    TWO-STAGE FUEL INJECTION VALVE FOR A DIESEL ENGINE, COMPRISING A SOLENOID VALVE AND A SHUTTLE VALVE 审中-公开
    两阶段燃料喷射阀门有电磁阀的柴油发动机和瓣膜置换

    公开(公告)号:EP2546508A1

    公开(公告)日:2013-01-16

    申请号:EP11753558.3

    申请日:2011-03-04

    IPC分类号: F02M45/10 F02M61/10 F02M61/16

    摘要: Disclosed herein is a two-stage fuel injection valve for a diesel engine. The valve includes a fuel valve block (110) having therein a passage (1701) into which fuel is supplied; a nozzle (140) having a low pressure nozzle hole (160) and a high pressure nozzle hole (161); a needle valve (130) differentially opening the low pressure nozzle hole and the high pressure nozzle; pressure booster spindles (141), (142) and (143) pressurizing the needle valve to boost pressure of low-load fuel; a shuttle valve (150) configured to supply a gauge pressure to the pressure booster spindles, thus raising the pressure of the fuel; a lifting bush valve (180) discharging fuel to a fuel discharge hole through a gap between the fuel discharge hole and a nozzle holder when a solenoid valve (201) is moved upwards; and the solenoid valve (201) controlling pressure applied to the lifting bush valve.

    摘要翻译: 在为柴油机中公开的两阶段的燃料喷射阀。 该阀包括在其中具有(1701)的通道成燃料被供给燃料阀块(110); 一个喷嘴(140)具有低压力喷嘴孔(160)和一个高压喷嘴孔(161); 针阀(130)差异打开所述低压喷嘴孔和高压喷嘴; 增压器轴(141)(142)和(143)加压该针阀提升低负荷的燃料的压力; 配置以提供表压增压器主轴,从而提高了燃料的压力的梭阀(150); 提升阀衬套(180)通过所述燃料排放孔和喷嘴保持器之间的间隙中排出燃料到燃料排出孔时的电磁阀(201)向上移动; 和电磁阀(201)控制压力施加到所述提升阀衬套。

    TWO SOLENOID VALVE RELAY TWO-STAGE FUEL INJECTION VALVE FOR DIESEL ENGINES
    3.
    发明公开
    TWO SOLENOID VALVE RELAY TWO-STAGE FUEL INJECTION VALVE FOR DIESEL ENGINES 有权
    ÜOR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR OR

    公开(公告)号:EP2562410A1

    公开(公告)日:2013-02-27

    申请号:EP10850315.2

    申请日:2010-10-26

    摘要: The present invention provides a two solenoid valve relay with a two-phase fuel injection valve for a diesel engine, which is installed on a valve itself to enable injection at pressure greater than opening pressure, at which the fuel enters into a fuel valve, thereby improving fuel injection performance, and which is configured to enable adjustment of an injection timing at the opening pressure within the valve, wherein injection timings through a solenoid valve is provided for low load and high load, respectively, such that a distinct difference exists between the injection timings to open the nozzle hole of the nozzle in a differential manner at pressure higher than the pressure, at which the fuel enters to the fuel valve and internal spring opening pressure, thereby injecting fuel at high pressure even at low load to facilitate vaporization, and wherein, in case of a high speed operation or high load, low pressure/high pressure needle valves are opened at the same time to quickly inject fuel of a high volume through a plurality of nozzle holes, thereby improving combustion performance of an engine, and wherein a space between the needle valve and the nozzle hole which are closed after the injection is minimized because the nozzle hole is opened differentially and sequentially according to pressure, thereby avoiding waste of fuel and reducing harmful gas (smoke, Nox).

    摘要翻译: 本发明提供了一种具有用于柴油发动机的两相燃料喷射阀的两个电磁阀继电器,该电磁阀继电器安装在阀本身上以使得能够在大于打开压力的压力下喷射燃料进入燃料阀,由此 提高燃料喷射性能,并且其被配置为能够调节阀内的打开压力下的喷射正时,其中通过电磁阀分别为低负载和高负载提供喷射定时,使得在 喷射正时以在压力高于燃料阀进入燃料阀的压力和内部弹簧开启压力的压力下以不同的方式打开喷嘴孔,从而甚至在低负载下高压喷射燃料以促进汽化, 并且其中,在高速运转或高负载的情况下,低压/高压针阀同时打开以快速地 通过多个喷嘴孔大体积的喷射燃料,从而提高发动机的燃烧性能,并且其中在喷射之后关闭的针阀和喷嘴孔之间的空间被最小化,因为喷嘴孔差异地并且顺序地打开 根据压力,从而避免燃料的浪费和减少有害气体(烟雾,Nox)。

    FUEL INJECTION PUMP HAVING A SEPARABLE PLUNGER
    6.
    发明公开
    FUEL INJECTION PUMP HAVING A SEPARABLE PLUNGER 有权
    KRAFTSTOFFEINSPRITZPUMPE MIT TRENNBAREM KOLBEN

    公开(公告)号:EP2581598A1

    公开(公告)日:2013-04-17

    申请号:EP10852953.8

    申请日:2010-10-27

    IPC分类号: F02M59/26 F02M59/44 F02M59/20

    CPC分类号: F02M59/26 F02M59/28 F02M59/44

    摘要: The present invention relates to a fuel injection pump having a separable plunger being capable of not only easily adjusting a timing and a form of fuel injection with a simple structure but also enabling fine pre-injection of an engine at high pressure, thereby assisting in warming up within an engine cylinder, such that complete combustion may occur when main fuel is entered. The fuel injection pump having the separable plunger includes a separable plunger of which outer circumference is slide coupled to an inside of the barrel such that a lower portion thereof is supported by an upper portion of the main plunger to enable upward and downward slide movement in association with the main plunger, wherein an injection timing control spiral step of which upper surface is formed in a spiral shape is protrudingly formed on the outer circumference thereof and a fuel passage is formed on one side of the outer circumference thereof including the injection timing control spiral step and
    an elastic member having a lower portion elastically supported by the separable plunger and an upper portion inserted within the barrel to be supported by an upper surface of the barrel.

    摘要翻译: 本发明涉及一种具有可分离柱塞的燃料喷射泵,其不仅能够以简单的结构容易地调节燃料喷射的时间和形式,而且能够在高压下对发动机进行精细预喷射,从而有助于加温 在发动机气缸内,使得当主燃料进入时可能发生完全燃烧。 具有可分离柱塞的燃料喷射泵包括可分离柱塞,其外周与筒的内侧滑动联接,使得其下部由主柱塞的上部支撑,以使得能够相互关联地向上和向下滑动运动 与主柱塞一起,其上表面形成为螺旋状的喷射正时控制螺旋步骤突出地形成在其外周上,并且在其外周的一侧上形成燃料通道,包括喷射定时控制螺旋 其具有由所述可分离柱塞弹性支撑的下部和插入所述筒内的上部,以由所述筒的上表面支撑的弹性构件。