JPH0321532U

JPH0321532U -

Info

Publication number: JPH0321532U
Application number: JP8203389U
Authority: JP
Priority date: 1989-07-11
Filing date: 1989-07-11
Publication date: 1991-03-04

Description

[Brief explanation of the drawing]

図面は本考案の実施例を示し、第１図は本考案
の要部を示す図で第５図の視拡大断面図、第
２図は第１図の−視断面図、第３図は第２図
の−視断面図、第４図は第２図の−視断
面図、第５図は内燃機関の平面図である。１……内燃機関、２……吸気マニホールド、３
……チヤンバー、４……吸気通路、５……燃料噴
射弁、６……スロツトルボデー、７……一次側空
気通路、８……二次側空気通路、９……エアクリ
ーナ、１０……吸気管路、１１……一次側弁軸、
１２……一次側スロツトル弁、１３……二次側弁
軸、１４……二次側スロツトル弁、１５……一次
側スロツトル弁用レバー、１８……二次側スロツ
トル弁用レバー。 The drawings show an embodiment of the present invention, and FIG. 1 is an enlarged cross-sectional view of FIG. 5 showing the main parts of the present invention, FIG. FIG. 2 is a cross-sectional view taken from the side of FIG. 2, FIG. 4 is a cross-sectional view taken from the side of FIG. 2, and FIG. 5 is a plan view of the internal combustion engine. 1...Internal combustion engine, 2...Intake manifold, 3
...Chamber, 4...Intake passage, 5...Fuel injection valve, 6...Throttle body, 7...Primary side air passage, 8...Secondary side air passage, 9...Air cleaner, 10...Intake pipe line , 11...primary side valve shaft,
12... Primary side throttle valve, 13... Secondary side valve shaft, 14... Secondary side throttle valve, 15... Lever for primary side throttle valve, 18... Lever for secondary side throttle valve.

Claims

[Scope of utility model registration request]

An intake passage to each cylinder in the internal combustion engine is branched from the chamber, and an intake pipe from an air cleaner is connected to a throttle body attached to the chamber, while an inlet air passage and a secondary air passage are provided in the throttle body. In the intake device, a single primary valve shaft extending in a direction perpendicular to the axes of the primary air passage and the secondary air passage is attached to the throttle body in parallel with the primary air passage and the secondary air passage. The primary valve shaft is rotatably supported so as to pass through the side air passage, and a primary throttle valve is provided in a portion of the primary valve shaft inside the primary air passage. A secondary side valve shaft is rotatably fitted so that the secondary side valve shaft projects into the secondary side air passage, a secondary side throttle valve is provided thereon, and a secondary side throttle valve is provided thereon; The invention is characterized in that an interlocking mechanism is provided on the part of the shaft and one end of the secondary valve shaft that protrudes to the outside of the throttle body so that the secondary throttle valve opens after the primary throttle valve opens to a certain opening degree. Intake system for internal combustion engines.