JPS63112233U

JPS63112233U -

Info

Publication number: JPS63112233U
Application number: JP249887U
Authority: JP
Priority date: 1987-01-13
Filing date: 1987-01-13
Publication date: 1988-07-19

Description

[Brief explanation of the drawing]

第１図乃至第６図ａ，ｂ，ｃはこの考案の第１
の実施例に係わり、第１図は吸気装置の全体構成
図、第２図はケーシングの正面図、第３図はシヤ
フトの正面図、第４図は第３図の―断面図、
第５図は第３図の―断面図、第６図ａ乃至第
６図ｃはリンク機構の作用説明図、第７図乃至第
９図は第２の実施例に係わり、第７図は吸気装置
の断面図、第８図は第７図の―断面図、第９
図はケーシングの正面図、第１０図ａ，ｂ，ｃお
よび第１１図ａ，ｂ，ｃ，ｄは第３の実施例に係
わり、第１０図ａ乃至第１０図ｃはシヤフトの回
動による吸気方向の違いを示す作用説明図、第１
１図ａ乃至第１１図ｄはリンク機構の作用説明図
、第１２図乃至第１４図は第４の実施例に係わり
、第１２図は吸気装置の断面図、第１３図は第２
のバイパス通路における弁軸の回動状態を示す説
明図、第１４図は制御弁の正面図、第１５図は第
４の実施例の変形例に用いる制御弁の正面図であ
る。５……制御弁、１１……吸気通路、１３……絞
り弁、１９……補助吸気通路、２１……シヤフト
（吸気方向可変手段）。 Figures 1 to 6 a, b, and c are the first examples of this invention.
Regarding the embodiment, Fig. 1 is an overall configuration diagram of the intake device, Fig. 2 is a front view of the casing, Fig. 3 is a front view of the shaft, and Fig. 4 is a sectional view of Fig. 3.
5 is a sectional view of FIG. 3, FIGS. 6a to 6c are explanatory diagrams of the operation of the link mechanism, FIGS. 7 to 9 relate to the second embodiment, and FIG. A cross-sectional view of the device, Figure 8 is a cross-sectional view of Figure 7, and Figure 9 is a cross-sectional view of the device.
The figure is a front view of the casing, Figures 10a, b, c and 11a, b, c, d relate to the third embodiment, and Figures 10a to 10c are due to rotation of the shaft. Action explanatory diagram showing the difference in intake direction, 1st
1A to 11D are explanatory diagrams of the operation of the link mechanism, FIGS. 12 to 14 relate to the fourth embodiment, FIG. 12 is a sectional view of the intake device, and FIG.
FIG. 14 is a front view of the control valve, and FIG. 15 is a front view of the control valve used in a modification of the fourth embodiment. 5... Control valve, 11... Intake passage, 13... Throttle valve, 19... Auxiliary intake passage, 21... Shaft (intake direction variable means).

Claims

[Scope of utility model registration request]

A control valve is provided in the intake passage downstream of the throttle valve, and the intake passage is generally closed on the low load region side of the engine and opens on the high load region side, and the intake passage between this control valve and the throttle valve, and the intake passage downstream of the control valve are provided. An intake system for an internal combustion engine, characterized in that an auxiliary intake passage communicating with an intake passage is provided, and an intake direction variable means for changing the direction of intake air flowing out toward a combustion chamber is provided in the auxiliary intake passage.