JPS63112232U

JPS63112232U -

Info

Publication number: JPS63112232U
Application number: JP249787U
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図は第１のシヤフト
の正面図、第４図は第３図の底面図、第５図は第
２のシヤフトの正面図、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１２図は
第２の実施例に係わり、第７図は吸気装置の全体
構成図、第８図はケーシングの正面図、第９図は
シヤフトの正面図、第１０図は第９図の―断
面図、第１１図は第９図の―断面図、第
１２図ａ乃至第１２図ｃはリンク機構の作用説明
図、第１３図乃至第１６図は第３の実施例に係わ
り、第１３図はケーシングの正面図、第１４図は
シヤフトの正面図、第１５図は第１４図の―
断面図、第１６図は第１４図の―断
面図、第１７図乃至第２０図は第４の実施例に係
わり、第１７図は制御弁まわりの断面図、第１８
図はケーシングの正面図、第１９図はシヤフトの
正面図、第２０図は第１９図の―断面図
である。１５……制御弁、１１……吸気通路、１３……
絞り弁、１９……第１のバイパス通路（補助吸気
通路）、２１……第２のバイパス通路（補助吸気
通路）、２３……第１のシヤフト（開閉手段）、
２５……第２のシヤフト（開閉手段）。 Figures 1 to 6 relate to the first embodiment of this invention, with Figure 1 being an overall configuration diagram of the intake system, Figure 2 being a front view of the casing, and Figure 3 being a front view of the first shaft. , FIG. 4 is a bottom view of FIG. 3, FIG. 5 is a front view of the second shaft, FIGS. 6a to 6c are explanatory diagrams of the operation of the link mechanism, and FIGS. Regarding the embodiment 2, FIG. 7 is an overall configuration diagram of the intake device, FIG. 8 is a front view of the casing, FIG. 9 is a front view of the shaft, FIG. 10 is a sectional view of FIG. 9, and FIG. The figure is a sectional view of FIG. 9, FIGS. 12a to 12c are action explanatory diagrams of the link mechanism, FIGS. 13 to 16 relate to the third embodiment, and FIG. 13 is a front view of the casing. Figure 14 is a front view of the shaft, Figure 15 is the same as in Figure 14.
16 is a sectional view of FIG. 14, FIGS. 17 to 20 relate to the fourth embodiment, FIG. 17 is a sectional view of the area around the control valve, and FIG.
The figure is a front view of the casing, FIG. 19 is a front view of the shaft, and FIG. 20 is a cross-sectional view of FIG. 19. 15...control valve, 11...intake passage, 13...
Throttle valve, 19...first bypass passage (auxiliary intake passage), 21... second bypass passage (auxiliary intake passage), 23... first shaft (opening/closing means),
25...Second shaft (opening/closing means).

Claims

[Scope of utility model registration request]

A control valve is provided in the intake passage downstream of the throttle valve, and this intake passage is generally closed in the low load region of the engine and opens in the high load region, and a plurality of auxiliary intake passages are provided that bypass this control valve, and the plurality of auxiliary intake passages are An intake system for an internal combustion engine, characterized in that at least one of the intake passages is provided with an opening/closing means for opening and closing an auxiliary intake passage according to operating conditions.