| 摘要 |
PURPOSE:To aim at the atomization of fuel, by opening a suction passage in and around the center of a collector part of a suction manifold, and installing a pair of fuel injection valves, spraying the fuel in opposition to each other, at both ends of the collector part, while opening an auxiliary air passage in addition. CONSTITUTION:In a suction manifold 10 to be connected to the downstream side of a throttle body 2 where a throttle valve 1 is installed, there is provided with a collector part 11 having the specified air capacity, and this collector part 11 is connected to a suction passage 6 inside the throttle body 2 at the almost central part. And, a pair of fuel injection valves 15A and 15B, spraying fuel in opposition to each other, are set up at both ends 11A and 11B of the collector part 11. In addition, an auxiliary air intake passage 17, bypassing the throttle valve 1 and being opened to the vicinity of outlet parts 17A and 17B around these injection valves 15A and 15B, is formed in the throttle body 2 and the suction manifold 10, respectively, With this constitution, fuel atomization is accelerated, while combustibility is improved.
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