JPH02137524U - - Google Patents
Info
- Publication number
- JPH02137524U JPH02137524U JP4623889U JP4623889U JPH02137524U JP H02137524 U JPH02137524 U JP H02137524U JP 4623889 U JP4623889 U JP 4623889U JP 4623889 U JP4623889 U JP 4623889U JP H02137524 U JPH02137524 U JP H02137524U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- intake
- cylinder
- engine
- intake port
- 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 2
- 239000000446 fuel Substances 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は本考案による空気供給装置を４気筒内
燃機関に適用した概略的構成図、第２図は第１図
の１気筒のみを示す断面図、第３図は本考案によ
る空気供給タイムチヤートの一例を示す図。
２ａ〜２ｄ……気筒、７……スロツトル弁、８
ａ〜８ｃ……吸気ポート、９ａ〜９ｃ……遮断弁
、１３……バイパス路、１４……ロータリ弁（制
御弁）、１７……吸気弁、１９……燃料噴射弁。
Fig. 1 is a schematic configuration diagram of the air supply device according to the present invention applied to a four-cylinder internal combustion engine, Fig. 2 is a sectional view showing only one cylinder in Fig. 1, and Fig. 3 is an air supply time chart according to the present invention. The figure which shows an example. 2a to 2d...Cylinder, 7...Throttle valve, 8
a to 8c...Intake port, 9a to 9c...Shutoff valve, 13...Bypass path, 14...Rotary valve (control valve), 17...Intake valve, 19...Fuel injection valve.
Claims (1)
つの気筒を除いた他気筒の各吸気弁近傍に配置さ
れる燃料噴射弁の上流側にアイドル時、その気筒
の吸気ポートを遮断する遮断弁を近接配置し、全
気筒に共通して設けられるスロツトル弁の上流の
吸気通路と遮断弁下流の各吸気ポートとをバイパ
ス路で接続し、該バイパス路に、少なくとも機関
がアイドル状態にありかつ上記吸気弁の閉弁期間
に開弁して遮断弁下流の上記吸気ポートに新気の
一部を供給する制御弁を介装した多気筒内燃機関
の空気供給装置。 At least one of the plurality of cylinders composing the engine
A cutoff valve that shuts off the intake port of that cylinder during idling is placed close to the upstream side of the fuel injection valve that is placed near the intake valve of each cylinder except for one cylinder, and a throttle valve that is common to all cylinders is installed. The intake passage upstream of the valve and each intake port downstream of the cutoff valve are connected by a bypass passage, and the bypass passage is connected to the intake passage downstream of the cutoff valve, which is opened during at least the idle state of the engine and the intake valve is closed. An air supply device for a multi-cylinder internal combustion engine, which includes a control valve that supplies a portion of fresh air to the intake port of the engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4623889U JPH02137524U (en) | 1989-04-21 | 1989-04-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4623889U JPH02137524U (en) | 1989-04-21 | 1989-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02137524U true JPH02137524U (en) | 1990-11-16 |
Family
ID=31561144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4623889U Pending JPH02137524U (en) | 1989-04-21 | 1989-04-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02137524U (en) |
-
1989
- 1989-04-21 JP JP4623889U patent/JPH02137524U/ja active Pending