JPH0424629U - - Google Patents
Info
- Publication number
- JPH0424629U JPH0424629U JP6436690U JP6436690U JPH0424629U JP H0424629 U JPH0424629 U JP H0424629U JP 6436690 U JP6436690 U JP 6436690U JP 6436690 U JP6436690 U JP 6436690U JP H0424629 U JPH0424629 U JP H0424629U
- Authority
- JP
- Japan
- Prior art keywords
- intake
- port
- straight
- passage
- control 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.)
- Granted
Links
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000000446 fuel Substances 0.000 claims description 2
- 238000005192 partition Methods 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
第１図は本考案の一実施例の構成を示す略示図
、第２図と第３図は第１図のスワールポート形状
詳細を示すそれぞれ横断面図と縦断面図、第４図
は吸気制御弁の第１図と別の実施例を示す略示図
、第５図と第６図はそれぞれスワールポート形状
の第２図とは別の実施例を示す図である。
２……突起部、２ｂ，２ｃ……案内面、３……
ヒータ、５……伝熱体、１２ａ……スワールポー
ト、１２ｂ……ストレートポート、１６ａ，１６
ｂ……吸気弁、２６……燃料噴射弁、２８……隔
壁、３２……吸気制御弁。
Fig. 1 is a schematic diagram showing the configuration of an embodiment of the present invention, Figs. 2 and 3 are cross-sectional views and vertical sectional views, respectively, showing details of the shape of the swirl port in Fig. 1, and Fig. 4 is an intake air FIGS. 5 and 6 are schematic diagrams showing an embodiment of the control valve different from FIG. 1, and FIGS. 5 and 6 are diagrams showing an embodiment different from FIG. 2, each having a swirl port shape. 2... Protrusion, 2b, 2c... Guide surface, 3...
Heater, 5... Heat transfer body, 12a... Swirl port, 12b... Straight port, 16a, 16
b... Intake valve, 26... Fuel injection valve, 28... Partition wall, 32... Intake control valve.
Claims (1)
気流方向に延びる隔壁で二分割し、前記分割され
た吸気通路の一方を、吸気流が燃焼室内にスワー
ルを生成する形状のスワールポートに導き、他方
の吸気通路をストレート形状の吸気ポートに導く
と共に、機関低負荷運転時に前記ストレート形状
の吸気ポート側の吸気通路を閉鎖する吸気制御弁
と、前記吸気制御弁下流側の吸気通路にそれぞれ
開口し、前記スワールポートとストレートポート
とをそれぞれ指向する噴射口を有する燃料噴射弁
とを設けた内燃機関において、前記吸気制御弁が
全閉時にもストレートポート径の約1/3に相当す
る有効径の断面積を有する空気流路を通じてスト
レートポート側吸気通路からも気筒内に空気を供
給するようにしたことを特徴とする内燃機関の吸
気装置。 Each intake passage leading to an intake port of an internal combustion engine is divided into two by a partition wall extending in the direction of the intake air flow, one of the divided intake passages is guided to a swirl port having a shape in which the intake air flow generates a swirl within the combustion chamber, and the other an intake control valve that guides the intake passage to a straight-shaped intake port and closes the intake passage on the side of the straight-shaped intake port during low-load operation of the engine, and opens into the intake passage downstream of the intake control valve, respectively; In an internal combustion engine equipped with a fuel injection valve having an injection port oriented toward the swirl port and the straight port, even when the intake control valve is fully closed, there is a gap in the effective diameter corresponding to about 1/3 of the diameter of the straight port. An intake system for an internal combustion engine, characterized in that air is also supplied into a cylinder from a straight port side intake passage through an air passage having a large area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990064366U JP2519563Y2 (en) | 1990-06-20 | 1990-06-20 | Internal combustion engine intake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990064366U JP2519563Y2 (en) | 1990-06-20 | 1990-06-20 | Internal combustion engine intake system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0424629U true JPH0424629U (en) | 1992-02-27 |
| JP2519563Y2 JP2519563Y2 (en) | 1996-12-04 |
Family
ID=31595247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990064366U Expired - Lifetime JP2519563Y2 (en) | 1990-06-20 | 1990-06-20 | Internal combustion engine intake system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2519563Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0228534U (en) * | 1988-08-11 | 1990-02-23 |
-
1990
- 1990-06-20 JP JP1990064366U patent/JP2519563Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0228534U (en) * | 1988-08-11 | 1990-02-23 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2519563Y2 (en) | 1996-12-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |