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    • 10. 发明授权
    • Direct injection engine and controller for the same
    • 直喷发动机和控制器相同
    • US07165526B2
    • 2007-01-23
    • US11206227
    • 2005-08-18
    • Yoko NakayamaYoshihiro SukegawaTakuya ShiraishiYusuke KiharaKenji Tsuchita
    • Yoko NakayamaYoshihiro SukegawaTakuya ShiraishiYusuke KiharaKenji Tsuchita
    • F02B3/04
    • F02B23/104Y02T10/125
    • A direct injection engine and a controller for the engine, which can realize super-retard combustion under high backpressure and can minimize an emission amount of HC at the startup. A cavity is formed in a piston such that fuel spray injected from a fuel injection valve is blown into the cavity. An obstacle member, such as a step, is provided in the cavity to decelerate or stop the fuel spray blown into the cavity. A mount position, mount posture, nozzle structure, injection port shape, etc. of the fuel injection valve are set such that the fuel spray injected from the fuel injection valve is made up of a lead fuel spray component directed toward the ignition plug and having a penetration to extend long beyond the ignition plug, and a main fuel spray component directed toward the piston, thereby enabling the super-retard combustion to be performed under high backpressure.
    • 一种用于发动机的直喷发动机和控制器,其可以在高背压下实现超延迟燃烧,并且可以最小化起动时HC的排放量。 在活塞中形成空腔,使得从燃料喷射阀喷射的燃料喷射被吹入空腔。 在空腔中设置有诸如台阶的障碍构件,以减速或停止吹入空腔中的燃料喷雾。 燃料喷射阀的安装位置,安装姿势,喷嘴结构,喷射口形状等被设定为使得从燃料喷射阀喷射的燃料喷雾由指向火花塞的铅燃料喷射部件构成,并且具有 延伸超过火花塞的穿透力以及朝向活塞的主燃料喷射部件,从而能够在高背压下进行超延迟燃烧。