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    Fuel injector for an internal combustion engine
    1.
    发明授权
    Fuel injector for an internal combustion engine 失效
    用于内燃机的燃油喷射器

    公开(公告)号：US5662274A

    公开(公告)日：1997-09-02

    申请号：US546181

    申请日：1995-10-20

    申请人： Nobuhiko Koga ,  Keiso Takeda ,  Yoshiyuki Tamaki

    发明人： Nobuhiko Koga ,  Keiso Takeda ,  Yoshiyuki Tamaki

    IPC分类号： F02M51/06 ,  F02M51/08 ,  F02M55/00 ,  F02M61/12 ,  F02M61/16

    CPC分类号： F02M61/12 ,  F02M61/168

    摘要： A fuel injector for an internal combustion engine includes a valve body which has a nozzle at one end. A stopper plate is located at the other end of the valve body and has a path for communicating between the upstream and the downstream sides of said stopper plate itself. A needle valve is slidably disposed in the valve body for opening and closing the nozzle. A lift stopper is fixed to the needle valve for limiting the stroke of the needle valve in association with the stopper plate and has at least one path for communicating between the upstream and downstream sides of the lift stopper itself. A first needle guide is fixed to the needle valve at the downstream side of the lift stopper and has at least one path for communicating the upstream and the downstream sides of the first needle guide itself. A second needle guide is fixed to the needle valve at the upstream side of the lift stopper and has at least one path for communicating the upstream and the downstream sides of the second needle guide itself. The second needle guide guides the needle valve so that the needle valve is correctly moved, along the center axis, in association with the first needle guide.

    摘要翻译： 一种用于内燃机的燃料喷射器包括在一端具有喷嘴的阀体。 止动板位于阀体的另一端，并且具有用于在所述止动板本身的上游侧和下游侧之间连通的路径。 针阀可滑动地设置在阀体中，用于打开和关闭喷嘴。 电动止动器固定在针阀上，用于限制与止动板相关联的针阀的行程，并且具有用于在升降器本身的上游侧和下游侧之间连通的至少一条路径。 第一针引导件在提升止动器的下游侧固定到针阀，并且具有用于连通第一针引导件本身的上游侧和下游侧的至少一个路径。 第二针引导件在提升止动器的上游侧固定到针阀，并且具有用于连通第二针引导件本身的上游侧和下游侧的至少一个路径。 第二针导向器引导针阀，使得针阀沿着中心轴线与第一针引导件正确地移动。

    Fuel injection valve
    2.
    发明授权
    Fuel injection valve 失效
    燃油喷射阀

    公开(公告)号：US5772124A

    公开(公告)日：1998-06-30

    申请号：US678673

    申请日：1996-07-11

    申请人： Yoshiyuki Tamaki ,  Keiso Takeda ,  Nobuhiko Koga

    发明人： Yoshiyuki Tamaki ,  Keiso Takeda ,  Nobuhiko Koga

    IPC分类号： F02M61/18 ,  F02M61/00

    CPC分类号： F02M61/1853 ,  F02M61/18 ,  F02M61/1806

    摘要： A fuel injection valve with improved fuel atomization which has a valve body, a needle valve accommodated in the valve body for opening and closing a fuel path at a sealing portion, and a metering member provided at a front end of the valve body and having a plurality of nozzle holes for metering a fuel and determining the fuel-injecting direction. The fuel injection valve comprises an inner wall of the valve body located downstream of the sealing portion which is shaped to be gradually contiguous to an upstream side surface of the metering member, and an intermediate surface of the needle valve for connecting the sealing portion and the most-downstream side bottom surface of the needle valve with each other forming the fuel path sloped inward in the downstream direction in association with the inner wall for introducing the fuel into the nozzle holes formed in the metering member when the needle valve is in an open state, wherein the intermediate surface of the needle valve being shaped in such a manner that a virtual intersecting line of a virtual linear extension of the intermediate surface and the upstream side surface of the metering member is positioned outside of a virtual circle circumscribing the upstream side openings of the nozzle holes formed in the metering member when the needle valve is in an open state.

    摘要翻译： 一种具有改进的燃料雾化的燃料喷射阀，其具有阀体，容纳在阀体中的针阀，用于在密封部分处打开和关闭燃料路径;以及计量构件，其设置在阀体的前端，并具有 多个喷嘴孔，用于计量燃料并确定燃料喷射方向。 燃料喷射阀包括位于密封部分的下游的阀体的内壁，该内壁被成形为与计量构件的上游侧表面逐渐邻接，并且针阀的中间表面用于将密封部分和 针阀的最下游侧底面彼此形成燃料通道，其与内壁相关联地向内倾斜，用于当针阀处于打开状态时将燃料引入形成在计量构件中的喷嘴孔中 状态，其中所述针阀的中间表面被成形为使得所述中间表面的虚拟线性延伸和所述计量构件的上游侧表面的虚拟交叉线位于限定所述上游侧的虚拟圆的外侧 当针阀处于打开状态时形成在计量构件中的喷嘴孔的开口。

    Direct fuel injection type spark ignition internal combustion engine having a squish flow for assisting fuel evaporation
    4.
    发明授权
    Direct fuel injection type spark ignition internal combustion engine having a squish flow for assisting fuel evaporation 失效
    具有用于辅助燃料蒸发的挤压流动的直接燃料喷射式火花点火内燃机

    公开(公告)号：US4920937A

    公开(公告)日：1990-05-01

    申请号：US307480

    申请日：1989-02-08

    申请人： Shizuo Sasaki ,  Yoshiyuki Tamaki

    发明人： Shizuo Sasaki ,  Yoshiyuki Tamaki

    IPC分类号： F02B23/10 ,  F02B75/12 ,  F02F1/24 ,  F02F1/42 ,  F02F3/26

    CPC分类号： F02F1/4214 ,  F02B23/104 ,  F02F3/26 ,  F02B2023/103 ,  F02B2023/108 ,  F02B2075/125 ,  F02B2275/40 ,  F02F2001/245 ,  Y02T10/123 ,  Y02T10/125

    摘要： In a direct fuel injection type spark ignition internal combustion engine, fuel is assisted in evaporation by a squish flow. The engine includes a squish portion for generating the squish flow, a spark plug located adjacent to a center of a cylinder, and a fuel injector. The squish portion is enlarged so as to closely oppose the spark plug at the opening end of the squish portion. The fuel injector is located at a closed end of the squish portion and injects at least one portion of the fuel onto either one of two squish portion defining surfaces defining the squish portion therebetween. Evaporation of the fuel injected onto and adhering to the squish portion defining surface is promoted by the squish flow before being ignited by the spark plug.

    摘要翻译： 在直接燃料喷射式火花点火内燃机中，燃料通过挤压的流动被辅助蒸发。 发动机包括用于产生挤压流的挤压部分，邻近气缸中心定位的火花塞和燃料喷射器。 挤压部分被放大，以便在挤压部分的开口端处与火花塞紧密地相对。 燃料喷射器位于挤压部分的封闭端，并且将至少一部分燃料喷射到限定其间的挤压部分的两个挤压部分限定表面中的任一个上。 在被火花塞点燃之前，通过挤压流动促进喷射并附着到挤压部分限定表面上的燃料的蒸发。

    Fuel swirl generation type fuel injection valve and direct fuel injection type spark ignition internal combustion engine
    6.
    发明授权
    Fuel swirl generation type fuel injection valve and direct fuel injection type spark ignition internal combustion engine 失效
    燃油发电型燃油喷射阀和直接燃油喷射型火花点火内燃机

    公开(公告)号：US5058549A

    公开(公告)日：1991-10-22

    申请号：US584645

    申请日：1990-09-19

    申请人： Eiji Hashimoto ,  Daisaku Sawada ,  Shizuo Sasaki ,  Yoshiyuki Tamaki ,  Masaki Mitsuyasu

    发明人： Eiji Hashimoto ,  Daisaku Sawada ,  Shizuo Sasaki ,  Yoshiyuki Tamaki ,  Masaki Mitsuyasu

    IPC分类号： F02B1/04 ,  F02B23/10 ,  F02B75/12 ,  F02F3/26 ,  F02M61/06 ,  F02M61/16 ,  F02M61/18

    CPC分类号： F02M61/182 ,  F02B1/04 ,  F02B23/104 ,  F02B23/105 ,  F02F3/26 ,  F02M61/06 ,  F02M61/163 ,  F02M61/1826 ,  F02B2023/103 ,  F02B2023/108 ,  F02B2075/125 ,  Y02T10/123 ,  Y02T10/125

    摘要： A fuel injection valve includes a fuel swirl generation device, a main fuel injection hole having a comparatively large diameter, and a subsidiary fuel injection hole having a comparatively small diameter. The inclination of the main fuel injection hole with respect to an axis of the fuel injection valve is small so that a fuel swirl remains in the fuel injected therethrough. The inclination of the subsidiary fuel injection hole is great so that the swirl operates so as to push out the fuel through the subsidiary fuel injection hole. The fuel injected through the main fuel injection hole spreads due to the centrifugal force acting on the swirling fuel without depending on an intake gas swirl. The fuel injected through the subsidiary fuel injection hole has a strong penetrating force and can reach the vicinity of a spark plug. This improves ignition without depending on an intake gas swirl. Thus, good combustion is obtained over an entire operation range of a direct fuel injection type engine.

    摘要翻译： 燃料喷射阀包括燃料涡流发生装置，具有较大直径的主燃料喷射孔和具有较小直径的辅助燃料喷射孔。 主燃料喷射孔相对于燃料喷射阀的轴线的倾斜度小，使得燃料喷射通过其中喷射的燃料保留。 辅助燃料喷射孔的倾斜度很大，使得涡流操作以便通过辅助燃料喷射孔推出燃料。 通过主燃料喷射孔喷射的燃料由于作用在旋流燃料上的离心力而不依赖于进气旋流而扩散。 通过辅助燃料喷射孔喷射的燃料具有很强的穿透力并且可以到达火花塞附近。 这样可以不依赖于进气旋流来改善点火。 因此，在直接燃料喷射式发动机的整个操作范围内获得良好的燃烧。