JPH041668U

JPH041668U -

Info

Publication number: JPH041668U
Application number: JP3993690U
Authority: JP
Priority date: 1990-04-13
Filing date: 1990-04-13
Publication date: 1992-01-08

Description

[Brief explanation of the drawing]

第１図は本考案によるエンジンの吸気装置を示
す概略構成図、第２図は第１図の−断面概略
図、第３図は第１図のＸ矢視図、第４図は実施例
の一部断面した斜視図である。１……シリンダヘツド、１ａ……燃焼室、３，
４……第１、第２吸気バルブ、３ａ，４ａ……第
１、第２吸気バルブ孔、３ｂ，４ｂ……第１、第
２吸気ポート、３ｂ_１……狭通路、３ｂ_２……広
通路、７……分岐部、８……隔壁、９……吸気管
、１０……スワールコントロールバルブ、１１…
…インジエクタ。 FIG. 1 is a schematic configuration diagram showing an engine intake system according to the present invention, FIG. 2 is a schematic cross-sectional view of FIG. 1, FIG. 3 is a view taken along the X arrow in FIG. FIG. 2 is a partially sectional perspective view. 1...Cylinder head, 1a...Combustion chamber, 3,
4...First and second intake valves, 3a, 4a...First and second intake valve holes, 3b, 4b...First and second intake ports, 3b ₁ ...Narrow passage, 3b ₂ ...Wide Passage, 7... Branch, 8... Partition, 9... Intake pipe, 10... Swirl control valve, 11...
...Injecta.

Claims

[Claims for Utility Model Registration] Forming a Siamese port having a first intake port and a second intake port branching from the downstream side of the intake port opening of a cylinder head having first and second intake valves per cylinder. A partition is formed between the first intake port and the intake port opening to provide a narrow passage and a wide passage, a swirl control valve is disposed in the wide passage, and an injector is disposed in the narrow passage. In the intake port, a partition formed in the first intake port is formed in the vertical direction of the cylinder head, and the downstream side of the partition is located near the first intake valve hole of the first intake valve, and The cross-sectional area of the narrow passage is gradually reduced from the upstream side to the downstream side, and the injector is disposed near the valve hole of the first intake valve on the narrow passage side of the first intake port, and the injector is disposed near the valve hole of the first intake valve. The tip of the injector is exposed in the narrow passage, the injection direction of the injector is directed toward the opening between the first intake valve and the valve seat when the first intake valve is fully open, and the fuel injection timing of the injector is adjusted. An intake system for an engine, characterized in that it is set during the intake stroke of the engine.