JPH01174525U - - Google Patents
Info
- Publication number
- JPH01174525U JPH01174525U JP7220688U JP7220688U JPH01174525U JP H01174525 U JPH01174525 U JP H01174525U JP 7220688 U JP7220688 U JP 7220688U JP 7220688 U JP7220688 U JP 7220688U JP H01174525 U JPH01174525 U JP H01174525U
- Authority
- JP
- Japan
- Prior art keywords
- intake
- communication hole
- cylinder engine
- pipe
- air temperature
- 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
- 239000002184 metal Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Characterised By The Charging Evacuation (AREA)
Description
第１図は本考案一実施例吸気マニホルドを含む
エンジンの構成図。第２図及び第３図はその吸気
マニホルドの要部拡大断面図。第４図はエンジン
回転速度と吸気温度との関係を示す特性図。第５
図はエンジン回転速度による体積効率の変化を示
す図。
１０：エンジン、１１：シリンダ、１２：排気
ターボ過給機、１３：連通孔、１３ａ：開閉弁、
１５：吸気マニホルド、１５ａ：吸入口、１６，
１７：吸気管、１８，１９：枝管。
FIG. 1 is a configuration diagram of an engine including an intake manifold according to an embodiment of the present invention. FIGS. 2 and 3 are enlarged sectional views of main parts of the intake manifold. FIG. 4 is a characteristic diagram showing the relationship between engine speed and intake air temperature. Fifth
The figure shows changes in volumetric efficiency depending on engine rotation speed. 10: Engine, 11: Cylinder, 12: Exhaust turbo supercharger, 13: Communication hole, 13a: Open/close valve,
15: intake manifold, 15a: intake port, 16,
17: Intake pipe, 18, 19: Branch pipe.
Claims (1)
された吸入口から２つに分岐された吸気管と、前
記吸気管から更に分岐され複数のシリンダの吸気
口に接続された枝管と、前記２つの吸気管の間に
設けられこれらの吸気管同士を連通させる連通孔
と、この連通孔を開閉する開閉弁とを備えた多気
筒エンジンの吸気マニホルドにおいて、 前記開閉弁は形状記憶金属により形成され、吸
気温度が低いときには前記連通孔を閉じ、吸気温
度が高いときには前記連通孔を開くことを特徴と
する多気筒エンジンの吸気マニホルド。[Claims for Utility Model Registration] An intake pipe branched into two from an intake port connected to the outlet of a compressor of an exhaust turbo supercharger, and an intake pipe further branched from the intake pipe and connected to the intake ports of a plurality of cylinders. In an intake manifold for a multi-cylinder engine, the intake manifold for a multi-cylinder engine is provided with a branch pipe, a communication hole provided between the two intake pipes and communicating the intake pipes, and an on-off valve that opens and closes the communication hole. An intake manifold for a multi-cylinder engine, which is formed of a shape memory metal, and wherein the communication hole is closed when the intake air temperature is low, and the communication hole is opened when the intake air temperature is high.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7220688U JPH01174525U (en) | 1988-05-31 | 1988-05-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7220688U JPH01174525U (en) | 1988-05-31 | 1988-05-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01174525U true JPH01174525U (en) | 1989-12-12 |
Family
ID=31297380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7220688U Pending JPH01174525U (en) | 1988-05-31 | 1988-05-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01174525U (en) |
-
1988
- 1988-05-31 JP JP7220688U patent/JPH01174525U/ja active Pending
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