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    • 2. 发明授权
    • Intake system of a multi-cylinder internal combustion engine
    • 多缸内燃机进气系统
    • US4300500A
    • 1981-11-17
    • US59149
    • 1979-07-20
    • Katsuhiko MotosugiHiroshi TakahashiShuhei ToyodaToshio Tanahashi
    • Katsuhiko MotosugiHiroshi TakahashiShuhei ToyodaToshio Tanahashi
    • F02F1/42F02B1/04F02B31/00F02B31/08F02M13/06
    • F02B31/08F02B1/04F02B2275/20Y02T10/146
    • A multi-cylinder engine comprising a carburetor housing forming therein at least two branch mixture passages. Each of the branch mixture passages is connected to a respective intake port. A throttle valve of the carburetor is provided for each cylinder. Each of the throttle valves is arranged in the respective branch mixture passage and attached onto a common throttle shaft. A wedge shaped groove is formed on the bottom inner wall of each of the branch mixture passages, and the common throttle shaft is arranged in the wedge shaped groove for causing the mixture to flow only along the upper wall of the branch mixture passage. A single common connecting passage and branch connecting passages which are connected to the common connecting passage are provided. Each of the branch connecting passages opens into the respective intake port in the vicinity of the rear face of the valve head of the corresponding intake valve and is tangentially connected to the inner wall of the corresponding intake port, said wall extending circumferentially about the axis of the corresponding intake valve.
    • 一种多缸发动机,包括在其中形成至少两个分支混合物通道的化油器壳体。 每个分支混合物通道连接到相应的进气口。 为每个气缸设置了化油器的节流阀。 每个节流阀布置在相应的分支混合物通道中并且附接到共同的节流轴上。 在每个分支混合物通道的底部内壁上形成楔形槽,并且共同节流轴布置在楔形槽中,以使混合物仅沿着分支混合物通道的上壁流动。 提供了连接到公共连接通道的单个公共连接通道和分支连接通道。 每个分支连接通道在相应的进气门的阀头的后表面附近的相应进气口处打开,并且相切地连接到相应进气口的内壁,所述壁围绕 相应的进气阀。
    • 8. 发明授权
    • Helically-shaped intake port of an internal combustion engine
    • 内燃机的螺旋形进气口
    • US4406258A
    • 1983-09-27
    • US304597
    • 1981-09-22
    • Setsuro SekiyaKatsuhiko MotosugiHiroshi Takahashi
    • Setsuro SekiyaKatsuhiko MotosugiHiroshi Takahashi
    • F02B31/00F02B1/04F02F1/42F01L3/00
    • F02F1/4228F02B1/04
    • A helically-shaped intake port comprising a helical portion and an inlet passage portion which is tangentially connected to the helical portion and extends so as to be slightly curved. The intake valve is arranged at the outlet open end of the helical portion. The first side wall of the inlet passage portion, which is located near the axis of the intake valve, has on its upper portion an inclined wall portion which is arranged to be directed downwards. The inlet passage portion has an open inlet end formed on the flat side wall of the cylinder head. The inlet passage portion is so arranged that the longitudinal axis thereof obliquely intersects with a straight line passing through the center of the valve head of the intake valve and extending parpendicular to the outer side wall of the cylinder head. The inlet end of the inlet passage portion is arranged at a position remote from the straight line so that the inlet end does not include the straight line.
    • 螺旋状进气口包括螺旋部分和入口通道部分,该通道部分切向地连接到螺旋部分并且延伸成稍微弯曲。 进气阀布置在螺旋部分的出口开口端。 入口通道部分的位于进气阀的轴线附近的第一侧壁在其上部具有倾斜的壁部分,该壁部被布置成向下指向。 入口通道部分具有​​形成在气缸盖的平坦侧壁上的开口入口端。 入口通道部分布置成使得其纵向轴线与通过进气阀的阀头中心的直线倾斜相交并且垂直于气缸盖的外侧壁延伸。 入口通道部分的入口端布置在远离直线的位置,使得入口端不包括直线。