JPH01111136U - - Google Patents
Info
- Publication number
- JPH01111136U JPH01111136U JP451788U JP451788U JPH01111136U JP H01111136 U JPH01111136 U JP H01111136U JP 451788 U JP451788 U JP 451788U JP 451788 U JP451788 U JP 451788U JP H01111136 U JPH01111136 U JP H01111136U
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- downstream
- intake
- upstream
- intake pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000011144 upstream manufacturing Methods 0.000 claims 4
- 238000002789 length control Methods 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Characterised By The Charging Evacuation (AREA)
Description
図面は本考案の一実施例を示すもので、第１図
は本考案装置を備えた内燃機関の吸気系の縦断面
図（吸気管の有効長さ最大時）、第２図はその作
動図（吸気管の有効長さ短縮時）、第３図は第１
図の要部の拡大図、第４図は上、下流管の間隙Ｓ
、吸気管の有効長さＬ及び最適機関回転数Ｎｅの
関係を示すグラフである。
Ｓ……上、下流管の間隙、１……内燃機関、４
……吸気管、４ａ，４ｂ……上、下流管、１８…
…漏斗状開口部、１９……円錐面、２０……凸状
弧面、２１……環状凸部、２２……円錐面、２３
……凹状弧面。
The drawings show one embodiment of the present invention; Fig. 1 is a longitudinal cross-sectional view of the intake system of an internal combustion engine equipped with the device of the present invention (when the effective length of the intake pipe is at its maximum), and Fig. 2 is an operational diagram thereof. (When the effective length of the intake pipe is shortened), Figure 3 shows the
An enlarged view of the main part of the figure, Figure 4 is the gap S of the upper and downstream pipes.
, is a graph showing the relationship between the effective length L of the intake pipe and the optimum engine speed Ne. S... Gap between upper and downstream pipes, 1... Internal combustion engine, 4
...Intake pipe, 4a, 4b...Upper, downstream pipe, 18...
... Funnel-shaped opening, 19 ... Conical surface, 20 ... Convex arcuate surface, 21 ... Annular convex portion, 22 ... Conical surface, 23
...Concave arc surface.
Claims (1)
方向上流側に位置する上流管と、下流側に位置す
る下流管に分割し、これら上、下流管の間隙を調
節することにより吸気管の有効長さを制御するよ
うにした吸気管の有効長さ制御装置において、下
流管の上流側開口部を漏斗状に形成し、この開口
部に嵌合し得る円錐状の環状凸部を上流管の下流
側端部に設けたことを特徴とする、吸気管の有効
長さ制御装置。 The intake pipe connected to the engine's intake port is divided into an upstream pipe located on the upstream side in the intake direction and a downstream pipe located on the downstream side, and the gap between these upper and downstream pipes is adjusted to improve the effectiveness of the intake pipe. In a device for controlling the effective length of an intake pipe, the upstream opening of the downstream pipe is formed into a funnel shape, and a conical annular protrusion that can fit into this opening is formed on the upstream pipe. An effective length control device for an intake pipe, characterized in that it is provided at a downstream end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP451788U JPH01111136U (en) | 1988-01-18 | 1988-01-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP451788U JPH01111136U (en) | 1988-01-18 | 1988-01-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01111136U true JPH01111136U (en) | 1989-07-26 |
Family
ID=31207101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP451788U Pending JPH01111136U (en) | 1988-01-18 | 1988-01-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01111136U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202007019686U1 (en) | 2006-04-14 | 2015-07-14 | Yamaha Hatsudoki Kabushiki Kaisha | motor vehicle |
-
1988
- 1988-01-18 JP JP451788U patent/JPH01111136U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202007019686U1 (en) | 2006-04-14 | 2015-07-14 | Yamaha Hatsudoki Kabushiki Kaisha | motor vehicle |
| EP2960459A1 (en) | 2006-04-14 | 2015-12-30 | Yamaha Hatsudoki Kabushiki Kaisha | Vehicle |