JPS63191239U - - Google Patents
Info
- Publication number
- JPS63191239U JPS63191239U JP8125987U JP8125987U JPS63191239U JP S63191239 U JPS63191239 U JP S63191239U JP 8125987 U JP8125987 U JP 8125987U JP 8125987 U JP8125987 U JP 8125987U JP S63191239 U JPS63191239 U JP S63191239U
- Authority
- JP
- Japan
- Prior art keywords
- internal combustion
- combustion engine
- valve
- valves
- intake
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Characterised By The Charging Evacuation (AREA)
Description
第1図は本考案に係る内燃エンジンの吸気装置
の一実施例を示す断面図、第2図は第1図の―
断面図、第3図は第1図の実施例によるエンジ
ン回転速度に対応したエンジントルクの特性図で
ある。
1……吸気通路、2……サージタンク、2a…
…入口、2e……出口、3……第1の分岐通路、
4……第2の分岐通路、6……スロツトル弁(吸
気絞り弁)、8……第1の開閉弁、9……第2の
開閉弁。
FIG. 1 is a sectional view showing an embodiment of an intake system for an internal combustion engine according to the present invention, and FIG.
The sectional view, FIG. 3, is a characteristic diagram of engine torque corresponding to engine rotational speed according to the embodiment of FIG. 1. 1...Intake passage, 2...Surge tank, 2a...
...Entrance, 2e...Exit, 3...First branch passage,
4... Second branch passage, 6... Throttle valve (intake throttle valve), 8... First on-off valve, 9... Second on-off valve.
Claims (1)
中にサージタンクの入口を接続すると共に、前記
吸気通路の下流端に略等長の第1の分岐通路の各
一端を接続し、前記サージタンクの入口に第1の
開閉弁を配設する一方、該サージタンクの出口に
前記内燃エンジンの各気筒に連通する略等長の第
2の分岐通路を夫々接続して各接続部に第2の開
閉弁を配設し、該第2の分岐通路の各途中に前記
第1の分岐通路の各他端を接続し、前記第1及び
第2の開閉弁の夫々をエンジン回転速度に応じて
開閉制御する開閉制御手段を備えて構成し、前記
開閉制御手段は前記内燃エンジンの低速回転領域
で前記第1及び第2の開閉弁を共に閉弁し、中速
回転領域で前記第1の開閉弁のみを開弁し、高速
回転領域で前記第1及び第2の開閉弁を共に開弁
することを特徴とする内燃エンジンの吸気装置。 An inlet of a surge tank is connected to an intake passage on the downstream side of an intake throttle valve of an internal combustion engine, and one end of each first branch passage having approximately equal length is connected to the downstream end of the intake passage. A first on-off valve is provided at each connection point, and second branch passages of approximately equal length communicating with each cylinder of the internal combustion engine are connected to the outlet of the surge tank, and a second on-off valve is provided at each connection point. , each other end of the first branch passage is connected to each middle of the second branch passage, and opening/closing of each of the first and second on-off valves is controlled according to the engine rotation speed. The opening/closing control means closes both the first and second on-off valves in a low-speed rotation region of the internal combustion engine, and closes only the first on-off valve in a medium-speed rotation region. An intake system for an internal combustion engine, characterized in that the first and second on-off valves are both opened in a high speed rotation region.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8125987U JPS63191239U (en) | 1987-05-29 | 1987-05-29 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8125987U JPS63191239U (en) | 1987-05-29 | 1987-05-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63191239U true JPS63191239U (en) | 1988-12-09 |
Family
ID=30932835
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8125987U Pending JPS63191239U (en) | 1987-05-29 | 1987-05-29 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63191239U (en) |
-
1987
- 1987-05-29 JP JP8125987U patent/JPS63191239U/ja active Pending