JPS61107973U - - Google Patents
Info
- Publication number
- JPS61107973U JPS61107973U JP19216684U JP19216684U JPS61107973U JP S61107973 U JPS61107973 U JP S61107973U JP 19216684 U JP19216684 U JP 19216684U JP 19216684 U JP19216684 U JP 19216684U JP S61107973 U JPS61107973 U JP S61107973U
- Authority
- JP
- Japan
- Prior art keywords
- fuel supply
- supply device
- intake
- fuel
- valve
- 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
- 239000000446 fuel Substances 0.000 claims description 18
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は本考案の一実施例を示す概略図、第２
図は同上の機関回転速度と燃料供給比との関係を
示す図、第３図は内燃機関の吸気装置の従来例を
示す平面図である。
１Ａ…第１吸気弁、１Ｂ…第２吸気弁、２Ａ…
第１吸気ポート、２Ｂ…第２吸気ポート、３…開
閉弁、５…燃料噴射弁、１１…ＳＰＩ式燃料噴射
弁、１２…制御装置。
Fig. 1 is a schematic diagram showing an embodiment of the present invention;
This figure is a diagram showing the relationship between engine rotational speed and fuel supply ratio same as above, and FIG. 3 is a plan view showing a conventional example of an intake system for an internal combustion engine. 1A...first intake valve, 1B...second intake valve, 2A...
First intake port, 2B...Second intake port, 3...Opening/closing valve, 5...Fuel injection valve, 11...SPI type fuel injection valve, 12...Control device.
Claims (1)
ートにそれぞれ介装される２つの吸気弁と、前記
吸気ポートの一方に介装され機関運転条件に応じ
て開閉する開閉弁と、を備える内燃機関の吸気装
置において、前記開閉弁が設置されない側の吸気
ポートに燃料を供給する第１燃料供給装置と、該
第１燃料供給装置より上流に設けられ前記２つの
吸気ポートに燃料を略均等に分配供給する第２燃
料供給装置と、前記開閉弁の閉時は前記第１燃料
供給装置のみを作動させる一方、同じく開閉弁の
開時は第１及び第２燃料供給装置を共に作動させ
かつ開閉弁が開に切換わる直後の中速域で第２燃
料供給装置に対する第１燃料供給装置の燃料供給
比率を減少させ、高速になるにしたがつて第１燃
料供給装置の燃料供給比率を増大させるように制
御する制御手段と、を備えたことを特徴とする内
燃機関の吸気装置。 An internal combustion engine comprising, for each cylinder, two intake ports, two intake valves installed in each of these intake ports, and an on-off valve installed in one of the intake ports that opens and closes according to engine operating conditions. In the intake system, a first fuel supply device supplies fuel to the intake port on the side where the on-off valve is not installed, and a first fuel supply device is provided upstream of the first fuel supply device and distributes fuel substantially equally to the two intake ports. a second fuel supply device for supplying fuel, and a second fuel supply device that operates only the first fuel supply device when the on-off valve is closed, and operates both the first and second fuel supply devices when the on-off valve is open; The fuel supply ratio of the first fuel supply device to the second fuel supply device is decreased in the medium speed range immediately after the switch is switched to open, and as the speed increases, the fuel supply ratio of the first fuel supply device is increased. An intake system for an internal combustion engine, comprising: control means for controlling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19216684U JPS61107973U (en) | 1984-12-20 | 1984-12-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19216684U JPS61107973U (en) | 1984-12-20 | 1984-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61107973U true JPS61107973U (en) | 1986-07-09 |
Family
ID=30749592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19216684U Pending JPS61107973U (en) | 1984-12-20 | 1984-12-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61107973U (en) |
-
1984
- 1984-12-20 JP JP19216684U patent/JPS61107973U/ja active Pending