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    • 3. 发明专利
    • Exhaust device for two-stroke cycle engine
    • 两冲程循环发动机的排气装置
    • JP2003343271A
    • 2003-12-03
    • JP2002157319
    • 2002-05-30
    • Masaaki YamamotoNaoki YamamotoYorihiko Yamamoto政昭 山本直樹 山本頼彦 山本
    • YAMAMOTO YORIHIKOYAMAMOTO MASAAKIYAMAMOTO NAOKI
    • F02P13/00F02B23/08F02B25/16F02B27/06
    • Y02T10/125Y02T10/146
    • PROBLEM TO BE SOLVED: To enhance combustion efficiency and reduce HC (hydrocarbon) and NOx (nitrogen oxide) in an exhaust gas.
      SOLUTION: In an exhaust device for a two-stroke cycle engine having an exhaust pipe 18 connected to an exhaust passage 17 of a cylinder main body 3 and a muffler 19 installed on the exhaust pipe 18, the exhaust passage 17 comprises a plurality of independent exhaust passages 17a and 17b defined in an axial direction of a cylinder, and the exhaust pipe 18 has independent exhaust passages 18a and 18b communicating with the independent exhaust passages 17a and 17b. A control unit 8b for controlling opening and closing of cylinder side exhaust openings 17a1 and 17b1 of the independent exhaust passages 17a and 17b is provided on a head 8a of a piston 8.
      COPYRIGHT: (C)2004,JPO
    • 要解决的问题:提高燃烧效率并降低废气中的HC(烃)和NOx(氮氧化物)。 解决方案:在具有连接到气缸主体3的排气通道17的排气管18和安装在排气管18上的消声器19的用于二冲程循环发动机的排气装置中,排气通道17包括 多个独立的排气通道17a和17b限定在气缸的轴向上,排气管18具有与独立排气通道17a和17b连通的独立排气通道18a和18b。 用于控制独立排气通道17a和17b的气缸侧排气孔17a1和17b1的打开和关闭的控制单元8b设置在活塞8的头部8a上。(C)2004,JPO