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2. 发明公开

EP0570640A1 Carburettor and fuel feeding system having the same 失效
标题翻译： Vergaser und Brennstoffversorgungssystemdafür。
公开(公告)号：EP0570640A1
公开(公告)日：1993-11-24
申请号：EP92307880.2
申请日：1992-08-28
申请人： Tashiro, Shinichi , Ohshima, Akira
发明人： Tashiro, Shinichi
IPC分类号： F02M29/14 , F02M9/06 , F02M19/04
CPC分类号： F02M9/06 , F02M19/04 , F02M29/14 , F02M61/16
摘要： A carburettor (2) and a fuel feeding system including an air suction passageway (4) through which air is fed, and a fuel feeding passageway (10) which is disposed so as to be intersected to the air suction passageway (4) and through which fuel is fed, the air suction passageway (4) and the fuel feeding passageway (10) being interconnected to each other. A roughened surface portion (40,42,44) is formed on a wall surface (18a) of at least one of the air suction passageway (4) and the fuel feeding passageway (10) to generate turbulence in fluid flow and promotion carburetion and atomisation of the air-fuel mixture due to turbulence. The tip portion (36) of a jet needle (18) serving as a part of the fuel feeding passageway (10) may be provided with a substantially flat surface portion (132) or a substantially conical surface portion (132b) having a vertical angle above 145 degrees.
摘要翻译：一种化油器（2）和一个包括空气吸入通道（4）的燃料供给系统，通过空气吸入通道（4）供给空气，燃料供给通道（10）设置成与空气吸入通道（4）相交并通过该空气吸入通路（4）和燃料供给通路（10）相互连接。在空气吸入通道（4）和燃料供给通道（10）中的至少一个的壁面（18a）上形成有粗糙表面部分（40,42,44），以产生流体流动的湍流并促进化油由于湍流，空气 - 燃料混合物的雾化。用作燃料供给通道（10）的一部分的喷射针（18）的尖端部分（36）可以设置有基本平坦的表面部分（132）或具有垂直角度的大致圆锥形的表面部分（132b） 145度以上。

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