| 摘要 |
A butterfly type carburetor has a fuel discharge assembly which is operative during high power conditions only, e.g. during sudden acceleration and/or high speed operations. The fuel discharge assembly includes an elongated, hollow discharge tube having a fuel jet coupled to one end with the other end of the discharge tube being located in the airflow passage of the carburetor. A fuel flow guide tube is inserted into the discharge assembly. The guide tube includes an enlarged head located adjacent the fuel jet to take up any space or pocket formed between that jet and the inlet of the longitudinal bore in the discharge tube. The guide tube also includes a cylindrical body which is telescopically received in the internal bore of the discharge tube and extends at least part of the way up the length of the internal bore from the inlet towards the outlet thereof. The guide tube serves to smoothly conduct fuel from the fuel jet into the internal bore of the discharge tube, thereby promoting better fuel atomization, less turbulence in the fuel stream, and better performance from the engine.
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