| 摘要 |
PURPOSE:To accelerate the atomization and mixture of fuel by feeding the air to each venturi hole facing an outflow section at the downstream section of a casing arranged in an intake pipe and injecting fuel at the middle section of each venturi hole. CONSTITUTION:The air A in an intake pipe is fed to a branch passage 9 formed between the cylinder body 5 and the main body 6 of a casing arranged in a collector 2A via a fuel pipeline 8. The air A is also fed to a venturi hole 10 formed at the downstream section of the branch passage 9, the flow speed is increased by an orifice section 10A at its middle section. On the other hand, the fuel in the fuel pipeline 8 is injected near the orifice section 10A of the venturi hole 10 through an injection valve 12 stored in the hole 6B of the casing 4 via a fuel passage 11. The air B primarily mixed with fuel is fed to the recessed section 6C of the casing 4. The air-fuel mixture B is then secondarily mixed with the air C flowing through the intake pipe. |
