Direct injection internal combustion engine and injector used for direct injection internal combustion engine
    3.
    发明公开
    Direct injection internal combustion engine and injector used for direct injection internal combustion engine 审中-公开
    Direkteinspritzverbrennungsmotor und Injektorfürden Direkteinspritzverbrennungsmotor

    公开(公告)号:EP1961934A2

    公开(公告)日:2008-08-27

    申请号:EP07024812.5

    申请日:2007-12-20

    申请人: Hitachi, Ltd.

    IPC分类号: F02B23/10 F02M61/18 F02D41/04

    摘要: It is necessary to attain the combustion stability when performing ignition retarding in order to reduce exhaust gas and raise the exhaust gas temperature under a cold start condition, as well as soot reduction under a fully open throttle valve (23) condition.
    An injector (9) according to the present invention comprises: a plurality of fuel passages (11a-11F,13a-13F,38a-38H,40a-40H) having an axis line inclined with respect to a valve operation axis line (9A) at a nozzle end; wherein inclined axis lines of at least three of the fuel passages have a spreading angle, none of them intersecting with each other, and three injection points (10f,10e,10a) are formed in a plane perpendicular to a valve operation axis line (9A) to form a triangle (100); and wherein at least one center-oriented fuel passage having an injection point (10B) around the center of the triangle (100) is provided.

    摘要翻译: 为了减少排气,提高冷启动状态下的排气温度,以及在全开节气门(23)状态下的烟灰还原,需要实施点火延迟时的燃烧稳定性。 根据本发明的喷射器(9)包括:具有相对于阀操作轴线(9A)倾斜的轴线的多个燃料通道(11a-11F,13a-13F,38a-38H,40a-40H) 在喷嘴端; 其中至少三个燃料通道的倾斜轴线具有扩展角,它们都不相互交叉,并且在垂直于阀操作轴线(9A)的平面中形成三个喷射点(10f,10e,10a) )形成三角形(100); 并且其中提供了具有围绕所述三角形(100)的中心的注入点(10B)的至少一个中心取向的燃料通道。

    Intake pipe injection type engine
    5.
    发明公开
    Intake pipe injection type engine 审中-公开
    电动机Saugrohreinspritzung

    公开(公告)号:EP1302658A1

    公开(公告)日:2003-04-16

    申请号:EP02022939.9

    申请日:2002-10-11

    申请人: Hitachi, Ltd.

    IPC分类号: F02M61/18

    摘要: The present invention relates to an intake pipe injection type engine, in which even if the air flow is generated in the intake pipe (5), the fuel is prevented from adhering to the inner wall of the intake pipe (5) to aim at the decrease of the amount of the hydrocarbon exhaust, thereby the response of the fuel supply of the demanded air fuel ratio is improved. In an intake pipe injection type engine, in which the fuel injection valve (9) is installed in the intake pipe (5), and the fuel is injected into the intake pipe (5), the fuel injection valve (9) injects a main spray (16) of which the spray angle is wide and the spray penetration is weak, and a lead spray (15) of which the spray angle is narrow and the spray penetration is strong.

    摘要翻译: 本发明涉及一种进气管喷射式发动机,其中即使在进气管(5)中产生空气流,也可以防止燃料附着在进气管(5)的内壁上,以瞄准 减少碳氢化合物排气量,从而提高所需空燃比的燃料供给的响应。 在燃料喷射阀(9)安装在进气管(5)中并且燃料喷射到进气管(5)中的进气管喷射式发动机中,燃料喷射阀(9) 喷雾角度较大且喷雾穿透力较弱的喷雾器(16),喷雾角度窄,喷射强度高的喷头(15)。

    Cylinder injection engine and control device therefor
    8.
    发明公开
    Cylinder injection engine and control device therefor 审中-公开
    DIREKTEINGESPRITZTER MOTOR UND STEERERINRICHTUNGDAFÜR

    公开(公告)号:EP2444643A2

    公开(公告)日:2012-04-25

    申请号:EP11185964.1

    申请日:2011-10-20

    申请人: Hitachi Ltd.

    IPC分类号: F02D41/30 F02D41/40

    摘要: In a cylinder injection engine and a control device for the engine, for achieving both of the decrease of a particulate matter by suppression of fuel adhesion on the piston during fast idling of cold start and ignition retard fuel by stratification of a mixed gas around an ignition plug, a closing timing of a suction valve is set to a middle stage of a compression stroke in which a piston moving speed becomes maximum, while the fuel adhesion to the piston is decreased by injecting the fuel for stratification onto the ignition plug in the vicinity of a piston bottom dead center, and when the piston is raised in the compression stroke, the mixed gas flows from a combustion chamber to a suction pipe to generate a rising flow, and by this rising flow, the mixed gas is stratified around the ignition plug.

    摘要翻译: 在气缸喷射发动机和用于发动机的控制装置中,通过在冷启动的快速空转期间抑制活塞上的燃料粘附和通过点火附近的混合气体的分层来点火延迟燃料来实现颗粒物质的减少 插塞时,吸入阀的关闭正时被设定为压缩行程的中间阶段,其中活塞移动速度变得最大,同时通过将附近的燃料分层喷射到附近的火花塞上来减少燃料对活塞的粘附力 活塞下止点,当活塞在压缩行程中升高时,混合气体从燃烧室流入吸入管,产生上升的流量,通过该上升的流动,混合气体在点火周围分层 插头。

    Spark ignition device and internal combustion engine with the same
    9.
    发明公开
    Spark ignition device and internal combustion engine with the same 审中-公开
    Funkentzündungseinrichtungund damit ausgestatteter Verbrennungsmotor

    公开(公告)号:EP1657423A1

    公开(公告)日:2006-05-17

    申请号:EP05001002.4

    申请日:2005-01-19

    申请人: Hitachi, Ltd.

    摘要: The invention relates to a spark ignition device and an internal combustion device having said spark ignition device, wherein a plurality of spark electrodes (6-10) are disposed in an arc shape on the surface or so as to be projected from the surface of an insulating member (5) formed on a part of the wall face of a combustion chamber, and are formed so as to be in series electrically via discharging gaps (11-14,26).
    A spark plug (3) is provided integrally with an injector (4), and the spark plug (3) and the ignition coil (15) are integrated. The three members are constructed as an integral unit, thereby improving installability to an engine.
    The combustion engine having a piston (21) with a cavity (50) an the upper surface. The fuel is injected toward the cavity at least at the latter period of a compression stroke.

    摘要翻译: 本发明涉及一种火花点火装置和具有所述火花点火装置的内燃装置,其中多个火花放电电极(6-10)在表面上以弧形形状设置,或从其表面突出 绝缘部件(5),其形成在燃烧室的壁面的一部分上,并且经由排出间隙(11-14,26)电连接成一体。 火花塞(3)与喷射器(4)一体设置,火花塞(3)和点火线圈(15)成一体。 这三个构件被构造为一个整体单元,从而提高了发动机的可安装性。 内燃机具有带有空腔(50)的活塞(21)和上表面。 至少在压缩行程的后一个时期,将燃料注入空腔。