| 摘要 |
PURPOSE:To obtain the uniform fuel distribution performance all over the range of the throttle-valve opening-degree by forming the area of the intake passage partitioned by an injector into nonuniform and arranging a throttle valve so that the axis center is set parallel to the center line of the injector supporting part. CONSTITUTION:The area of the intake passage partitioned by an injector housing 2, injector pressing 3, and a body 1, namely the area of the opened port part 9 in correspondence with the underside of a throttle valve 4 is constituted smaller than the area of the opened port part 10 on the opposite side. Further, the axis center of a throttle valve shaft 5 is formed to be parallel to the direction of the axis center of an injector pressing 3. Therefore, the air stream does not concentrate towards the underside of the throttle valve 4, and the concentration of the fuel which flows in from an inlet 7 to the underside of the throttle valve 4 by the aid of air stream is prevented. Therefore, the nonuniformity of the fuel stream due to the throttle valve 4 in the range where the opening degree of the throttle valve 4 is large can be made uniform, and the fuel distribution to the engine can be made uniform.
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