Intake device for internal combustion engine专利检索- 多级化油器;节气门式化油器即具有滑动或旋转节流阀在该节流阀中除一个怠速喷嘴和一个主喷嘴外多个燃料喷嘴都通过节流阀相继暴露在空气流中专利检索查询-专利查询网

Intake device for internal combustion engine
申请号	JP3753381	申请日	1981-03-16	公开(公告)号	JPS57151051A	公开(公告)日	1982-09-18
申请人	Suzuki Motor Co Ltd;			发明人	ISHIDA ATSUJI;
摘要	PURPOSE:To keep almost constant the quantity of air ejected from an induction passage, by placing a gas source for the induction passage, downstream to a primary throttle valve but upstream to a secondary throttle valve. CONSTITUTION:An induction pipe 83 communicates with a passage 84 and a gathering passage 85. The induction passage 83 communicates with the downstram side of a primary throttle valve 25 through a hole 89 and a passage 88 and with the immediately upstream side of a secondary throttle valve 38 through a passage 84 and a jet port 91. For these reasons, the quantity of gas which is ejected from the induction passage 83 into a combustion chamber is kept almost constant regardless of the change in the state of operation. As a result, the fall in the flame propagation velocity in the medium and high speed ranges is avoided to suppress the generation of unburned hydrocarbon.
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