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    Variable cycle engine and operation mode switching method
    2.
    发明申请
    Variable cycle engine and operation mode switching method 失效
    可变循环发动机和运行方式切换方式

    公开(公告)号：US20040173166A1

    公开(公告)日：2004-09-09

    申请号：US10786152

    申请日：2004-02-26

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Tatsuo Kobayashi ,  Shouji Katsumata

    IPC分类号： F02B069/06

    CPC分类号： F02D41/3058 ,  F02B1/04 ,  F02B1/12 ,  F02B69/06 ,  F02B75/20 ,  F02B2075/025 ,  F02B2075/027 ,  F02B2075/1812 ,  F02D41/3035 ,  F02D41/307

    摘要： An engine is operated in accordance with a plurality of operation modes obtained by combining one of a 4-cycle mode and a 2-cycle mode with one of a combustion ignition control where an ignition is performed with an ignition unit and a self ignition priority control including the ignition performed without the ignition unit. Upon switching of the operation mode, a transition cycle is performed once between a first operation mode before switching of the operation mode and a second operation mode after switching of the operation mode. Timing for operating an intake valve or an exhaust valve in the transition cycle is different from that in the second operation mode. The combustion ignition control is executed in one of the combustion chambers where the single operation of the transition cycle is completed until a single cycle of each transient cycle in the rest of the combustion chambers is terminated.

    摘要翻译： 根据通过将4循环模式和2循环模式中的一种与点燃单元进行点火的燃烧点火控制和自点火优先控制之一组合的多个操作模式来操作发动机 包括没有点火单元的点火。 在切换操作模式时，在切换操作模式之前的第一操作模式和切换操作模式之后的第二操作模式之间执行一次转换周期。 在过渡循环中操作进气门或排气阀的时间与第二操作模式中的不同。 燃烧点火控制在一个燃烧室中执行，其中过渡循环的单次操作完成，直到其余燃烧室中的每个瞬态循环的单个循环终止。

    Direct cylinder injection-type spark ignition internal combustion engine
    3.
    发明申请
    Direct cylinder injection-type spark ignition internal combustion engine 失效
    直喷汽缸喷射式火花点火内燃机

    公开(公告)号：US20040007202A1

    公开(公告)日：2004-01-15

    申请号：US10615933

    申请日：2003-07-10

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Toyokazu Baika ,  Tatsuo Kobayashi ,  Fumiaki Hattori ,  Takashi Hashima ,  Hiroyuki Hokuto ,  Toshimi Kashiwagura ,  Mutsumi Kanda ,  Hiroya Tanaka ,  Souichi Matusita ,  Shizuo Abe ,  Nobuyuki Muramatsu

    IPC分类号： F02F003/26

    CPC分类号： F02B23/104 ,  F02B2023/108 ,  F02B2075/125 ,  F02F3/26 ,  F02F2001/245 ,  Y02T10/123 ,  Y02T10/125

    摘要： A direct cylinder injection-type spark ignition internal combustion engine is disclosed. The engine comprises a spark plug, a cavity formed in the top surface of a piston, and a fuel injection valve for injecting fuel into the cavity in nearly the shape of a fan having a relatively small thickness. When the fuel injected in nearly the shape of a fan from the fuel injection valve is considered by being divided into a plurality of fuel segments in a radial direction, a side wall of the cavity has a first fuel deflection passage 82a and a second fuel deflection passage 82b for so deflecting at least two of the plurality of fuel segments as to pass near the spark plug. The side wall of the cavity is at least partly provided with a return portion 83 that protrudes toward the inside of the cavity. The first fuel deflection passage is not provided with the return portion 83 or is provided with the return portion having a short protrusion, and the second fuel deflection passage is provided with the return portion 83 having a long protrusion.

    摘要翻译： 公开了一种直喷式火花点火式内燃机。 发动机包括火花塞，形成在活塞的顶表面中的腔，以及燃料喷射阀，用于将燃料喷射到几乎具有相对较小厚度的风扇的形状中。 当通过在径向上被分成多个燃料段来考虑从燃料喷射阀以几乎风扇形式喷射的燃料时，空腔的侧壁具有第一燃料偏转通道82a和第二燃料偏转 通道82b，用于使多个燃料段中的至少两个偏转以通过火花塞附近。 空腔的侧壁至少部分地设置有朝向空腔内部突出的返回部分83。 第一燃料偏转通道没有设置有返回部分83或设置有具有短突起的返回部分，并且第二燃料偏转通道设置有具有长突起的返回部分83。

    In-cylinder injection type spark-ignition internal combustion engine
    5.
    发明申请
    In-cylinder injection type spark-ignition internal combustion engine 失效
    缸内喷射式火花点火内燃机

    公开(公告)号：US20030037760A1

    公开(公告)日：2003-02-27

    申请号：US10213070

    申请日：2002-08-07

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Tatsuo Kobayashi

    IPC分类号： F02B003/00

    CPC分类号： F02B17/005 ,  F02B23/104 ,  F02B2075/125 ,  F02F3/26 ,  F02F2001/245 ,  Y02T10/123 ,  Y02T10/125

    摘要： An in-cylinder injection type spark-ignition internal combustion engine includes a spark plug, a fuel injection valve, and a piston having a top face and a cavity formed in a first part of the top face. The cavity is located closer to the fuel injection valve with respect to a center of the piston so as to bring the injected fuel toward the spark plug. A space formed in the cylinder at a top dead center of a compression stroke of the piston includes a first space in which a center of the cavity is located, and a second space. The first space is located on one side of a plane that passes through a center axis of the spark plug in parallel with a center axis of the cylinder and is perpendicular to a radial direction in which the center of the cavity deviates from the center of the piston. The second space is located on the other side of the plane. The top face of the piston is designed so as to reduce a volumetric difference between the first space and the second space, thereby preventing generation of a strong air stream flowing between the first space and the second space at around the top dead center.

    摘要翻译： 缸内喷射式火花点火内燃机包括火花塞，燃料喷射阀和具有在顶面的第一部分中形成的顶面和空腔的活塞。 空腔相对于活塞的中心更靠近燃料喷射阀，以将注入的燃料引向火花塞。 在活塞的压缩行程的上止点处形成在气缸中的空间包括空腔中心位于的第一空间和第二空间。 第一空间位于与圆柱体的中心轴平行的火花塞的中心轴线的平面的一侧，并且垂直于空腔的中心偏离中心的径向方向 活塞。 第二个空间位于飞机的另一边。 活塞的顶面被设计成减小第一空间和第二空间之间的体积差，从而防止在上止点附近在第一空间和第二空间之间产生强气流。