| 摘要 |
A carburetor ( 1 ) having an existing venturi upstream of a throttle plate ( 7 ) and a bore ( 17 ) downstream of a throttle plate ( 7 ) is provided with a second venturi ( 14 ) which increases airflow velocity and promotes fuel atomization. An aerodynamic piece or wing ( 15 ) is mounted to the top of the venturi to further define the airflow path and to prevent the downstream fuel/air mixture ( 10 ) from losing velocity after passing the throttle plate. The wing ( 15 ) includes a first set of tabs ( 41, 42 ) to secure the wing to the engine intake manifold and as second set of tabs ( 43, 44 ) to secure the combined wing ( 15 ) and venturi to an oversized carburetor bore. A cutout ( 21 ) in the venturi ( 14 ) prevents interference with the carburetor fuel jet ( 5 ). The wing ( 15 ) may be formed with a specially shaped trailing edge ( 51 ) in order to accommodate the contours of the throttle plate.
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