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    • 5. 发明授权
    • Air-intake device having variable induction-pipe length for an internal
combustion engine
    • 用于内燃机的具有可变感应管长度的进气装置
    • US5979389A
    • 1999-11-09
    • US103164
    • 1998-06-22
    • Carsten EspePeter FischerMichael LutzStefan Schmid
    • Carsten EspePeter FischerMichael LutzStefan Schmid
    • F02B27/02F02M35/10
    • F02B27/0215F02B27/0263F02B27/0284Y02T10/146
    • An air-intake device having a variable induction-pipe length for an internal combustion engine includes a cylindrical collector. Induction pipes extend from inlets on the collector along a periphery of the collector up to inlet ducts of an internal combustion engine. A switching device in the shape of a cylinder sector is pivotably mounted in the collector. In a first rotary position, the switching device closes lead-in ports which connect the induction pipes to the collector. Therefore, the switching device has elevations on its lateral surface. The elevations have a front surface and adjoining side walls together forming a first contact surface in a closing direction, and an end region opposite the front surface forming a second contact surface. The first and second contact surfaces have a seal and bear against first and second bearing surfaces of the lead-in ports in the first rotary position, for tightly closing the lead-in ports.
    • 具有用于内燃机的可变感应管长度的进气装置包括圆柱形收集器。 感应管从收集器的入口沿收集器的周边延伸到内燃机的入口管道。 气缸扇形的开关装置可枢转地安装在收集器中。 在第一旋转位置,开关装置关闭将感应管连接到收集器的引入口。 因此,开关装置在其侧面具有高度。 凸起具有前表面和相邻的侧壁,一起在闭合方向上形成第一接触表面,并且与前表面相对的端部区域形成第二接触表面。 第一和第二接触表面具有密封并且抵靠在第一旋转位置的引入端口的第一和第二支承表面,用于紧密地关闭引入端口。