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    • 66. 发明公开
    • Exhaust catalyst mounting structure for motorcycles
    • Montageanordnungfüreinen AbgaskatalysatorfürMotorräder
    • EP1643095A1
    • 2006-04-05
    • EP05017996.9
    • 2005-08-18
    • HONDA MOTOR CO., Ltd.
    • Misaki, KenichiMorita, Jiro
    • F01N3/28F01N7/18
    • F01N3/2882F01N13/18F01N2230/04
    • The invention realizes an arrangement of an exhaust catalyst in which respective shapes of the exhaust catalyst and a muffler are determined so as to avoid interference with respect to each other.
      In the invention, a front exhaust pipe 25 and a rear exhaust pipe 26 extending from a front cylinder 23 and a rear cylinder 24 of an engine 10 of a V-shape in the fore-and-aft direction are collected at a collective pipe 27 below the engine 10, and the rear end portion thereof is connected to a cylindrical catalyst pipe 40 disposed at a position overlapped with a rear wheel 9 in side view. A cylindrical exhaust catalyst 41 is stored in the catalyst pipe 40. The catalyst pipe 40 is connected to the collective pipe 27 of small diameter via a front tapered connecting pipe 42, and is connected to a muffler 28 having a substantially inverted triangular cross section with a larger diameter via a rear tapered connecting pipe 43.
    • 本发明实现排气催化剂的排列,其中确定排气催化剂和消音器的各种形状,以避免彼此相互干扰。 在本发明中,从前后方向的V型发动机10的前筒23和后筒24延伸出的前排气管25和后排气管26在集合管27 在发动机10的下方,其后端部与侧视图中配置在与后轮9重叠的位置的圆筒状的催化剂管40连接。 一个圆筒形排气催化剂41储存在催化剂管40中。催化剂管40经由前锥形连接管42连接到小直径的集合管27上,并连接到具有大致倒三角形横截面的消声器28, 通过后锥形连接管43具有较大的直径。