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    • 5. 发明授权
    • Intake manifold assembly for engines
    • 发动机进气歧管总成
    • US4854271A
    • 1989-08-08
    • US287679
    • 1988-12-20
    • Hideyo MiyanoYasuo Kitami
    • Hideyo MiyanoYasuo Kitami
    • F02B27/02F02B75/18F02B75/22F02M35/10F02M35/104F02M35/108
    • F02M35/116F02B27/0215F02B27/0263F02B75/22F02M35/10039F02M35/10065F02M35/10111F02M35/10268F02M35/1085F02B2075/1824F02B27/0273F02F2200/06Y02T10/146
    • An intake manifold assembly of a variable intake passage length includes a branch passage body for introducing air from a main throttle valve into intake ports of an engine. The branch passage body has an intake chamber communicating with the main throttle valve, a plurality of shorter passages extending upwardly from the intake chamber and each having an auxiliary throttle valve for selectively opening and closing the shorter passage, a plurality of longer passages extending from the intake chamber around a lower side of the intake chamber, the shorter and longer passages having downstream ends joined to each other at respective junctions, and connected to the intake ports. The branch passage assembly comprises an upper member, a lower member, and an intermediate member sandwiched between the upper and lower members, the intake chamber being defined in the lower member, the shorter passages being defined in the upper and intermediate member, the longer passages being defined in the upper, intermediate, and lower member, a connection to the intake ports being defined in the upper member, the auxiliary throttle valves being angularly movably disposed respectively in the shorter passages in the intermediate member.
    • 可变进气通道长度的进气歧管组件包括用于将空气从主节流阀引入发动机的进气口的分支通道体。 分支通道体具有与主节流阀连通的进气室,从进气室向上延伸的多个较短的通道,每个具有用于选择性地打开和关闭较短通道的辅助节流阀,多个较长的通道从 进气室围绕进气室的下侧,较短和较长的通道具有下游端在各个接合处彼此连接,并连接到进气口。 分支通道组件包括上部构件,下部构件和夹在上部构件和下部构件之间的中间构件,进气室限定在下部构件中,较短的通道限定在上部构件和中间构件中,较长的通道 被限定在上部构件,中间构件和下部构件中,与上部构件中限定的进气口的连接,辅助节流阀分别成角度地移动地设置在中间构件的较短通道中。