| 摘要 |
The present invention involves a carburetor (10) including a carburetor body (12) having a throat (34), a fuel bowl (16) connected to said carburetor body, a conduit (32) extending from said fuel bowl to said carburetor throat, a variable volume primer chamber (42,44) communicating with said bowl through a priming passage; the carburetor characterized by: an extended prime fuel chamber (62) communicating with the throat through an extended prime fuel passage (74) and communicating with the fuel bowl through a fuel fill passage (68,70). The extended prime fuel chamber delivers additional fuel from start-up through warm-up periods of the engine. The extended prime fuel chamber is arranged such that, after activation of a priming bulb, fuel from the carburetor bowl is directed into the throat through a nozzle tube and also into the extended prime fuel chamber through a prime fill passage. Once the engine fires, the fuel in the extended prime fuel chamber then is also directed into the carburetor throat through an extended prime fuel passage disposed at a lower position in the extended prime fuel chamber than the point at which the prime fill passage connects to the extended prime fuel chamber. <IMAGE> |
