| 摘要 |
A carburetor has a butterfly valve comprising a first valve plate portion for opening and closing a portion of an intake passage adjacent to a fuel nozzle and a second valve plate portion for opening and closing a portion of the intake passage located farther from the fuel nozzle, wherein the first valve plate portion is first opened from a position of closing the intake passage up to a predetermined angle, and, when the first valve plate portion is opened by more than the predetermined angle, the second valve plate portion is opened from a position of closing the intake passage.
|
