JPS62124231U

JPS62124231U -

Info

Publication number: JPS62124231U
Application number: JP1079086U
Authority: JP
Priority date: 1986-01-28
Filing date: 1986-01-28
Publication date: 1987-08-07

Description

[Brief explanation of the drawing]

第１図は、本考案の第１実施例による内燃機関
の吸気装置に用いられた吸気絞り弁装置の構成の
概略を示した斜視図、第２図は、吸気絞り弁装置
の組立断面図、第３図は、第２図の―断面図
、第４図は、本考案の第１実施例による内燃機関
の吸気装置の断面図、第５図は、吸気絞り弁装置
の制御マツプ、第６図は、第４図の部分拡大図、
第７図は、分岐管内の上流側に設置されたパイプ
の概略図、第８図は、第６図の―断面図、第
９図は、吸気絞り弁装置のプレートが分岐管外に
位置する状態を示す図、第１０図は、吸気絞り弁
装置のプレートが分岐管内に位置する状態を示す
図、第１１図は、吸気絞り弁装置の８枚のプレー
トが分岐管内を絞つた状態を示す図、第１２図は
、本考案の第２実施例による内燃機関の吸気装置
の断面図、第１３図は、第１２図の部分拡大図、
第１４図は、分岐管内の下流側に設置されたパイ
プの概略図、第１５図は、第１３図のＸＶ―ＸＶ
断面図である。１１……吸気マニホルド、１１ａ……分岐管、
１４……ケース、１４ｂ……段付部（ガイド）、
１５……スライダ、１６……プレート、１８，２
０……ピン孔、２１，２２……ピン、２３……絞
り孔、２５，２６，４０，４１……パイプ。 1 is a perspective view schematically showing the configuration of an intake throttle valve device used in an intake system of an internal combustion engine according to a first embodiment of the present invention; FIG. 2 is an assembled sectional view of the intake throttle valve device; 3 is a sectional view of FIG. 2, FIG. 4 is a sectional view of the intake system of an internal combustion engine according to the first embodiment of the present invention, FIG. 5 is a control map of the intake throttle valve system, and FIG. The figure is a partially enlarged view of Figure 4.
Figure 7 is a schematic diagram of the pipe installed on the upstream side within the branch pipe, Figure 8 is a sectional view of Figure 6, and Figure 9 shows the plate of the intake throttle valve device located outside the branch pipe. Figure 10 shows the state in which the plate of the intake throttle valve device is located in the branch pipe, and Figure 11 shows the state in which the eight plates of the intake throttle valve device throttle the inside of the branch pipe. 12 is a sectional view of an intake system for an internal combustion engine according to a second embodiment of the present invention, FIG. 13 is a partially enlarged view of FIG. 12,
Fig. 14 is a schematic diagram of the pipe installed on the downstream side of the branch pipe, and Fig. 15 is a diagram showing XV-XV of Fig. 13.
FIG. 11...Intake manifold, 11a...Branch pipe,
14...Case, 14b...Stepped part (guide),
15...Slider, 16...Plate, 18,2
0... Pin hole, 21, 22... Pin, 23... Throttle hole, 25, 26, 40, 41... Pipe.

Claims

[Scope of utility model registration request]

In an intake system for an internal combustion engine in which the cross-sectional area of the intake passage is variable, a slider that is rotatable along a guide in a case fixed to a branch pipe of an intake manifold is installed, and a pin that is rotatable with respect to the case is installed. A plurality of plates are arranged along the guide and are squeezed into the branch pipe, the plates having both ends provided with a coupling and a pin coupling that is guided along the shape of an elongated pin hole and is slidable with respect to the slider. A hole is formed, and the area of the throttle hole is made variable by moving the slider according to operating conditions, and a plurality of pipes are set coaxially within the branch pipe, with the pipe length selected to be longer as the pipe diameter becomes smaller. An intake device for an internal combustion engine, characterized in that the intake device is arranged so as to be close to the throttle hole so as to overlap with the throttle hole.