JPS6269042U - - Google Patents
Info
- Publication number
- JPS6269042U JPS6269042U JP16120585U JP16120585U JPS6269042U JP S6269042 U JPS6269042 U JP S6269042U JP 16120585 U JP16120585 U JP 16120585U JP 16120585 U JP16120585 U JP 16120585U JP S6269042 U JPS6269042 U JP S6269042U
- Authority
- JP
- Japan
- Prior art keywords
- egr
- negative pressure
- diaphragm
- passage
- 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
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
第１図は本考案の一実施例の全体構成図、第２
図はＥＧＲの駆動負圧特性線図、第３図はＥＧＲ
弁の開度特性線図、第４図は従来のＥＧＲ率特性
線図、第５図は吸気絞り弁の開度特性線図、第６
図は吸気負圧の特性線図、第７図は第１図実施例
によるＥＧＲ率特性線図である。
２…ＥＧＲ弁、２Ａ…ダイヤフラム装置、３…
吸気管路、４…吸気絞り弁、４Ａ…ダイヤフラム
装置、５…駆動負圧制御装置、７…コントローラ
。
Figure 1 is an overall configuration diagram of one embodiment of the present invention, Figure 2
The figure shows the EGR drive negative pressure characteristic diagram, and Figure 3 shows the EGR
Figure 4 is the conventional EGR rate characteristic diagram, Figure 5 is the opening characteristic diagram of the intake throttle valve, and Figure 6 is the valve opening characteristic diagram.
The figure is a characteristic diagram of intake negative pressure, and FIG. 7 is an EGR rate characteristic diagram according to the embodiment shown in FIG. 2...EGR valve, 2A...diaphragm device, 3...
Intake pipe line, 4... Intake throttle valve, 4A... Diaphragm device, 5... Driving negative pressure control device, 7... Controller.
Claims (1)
とを連通するＥＧＲ通路と、該ＥＧＲ通路に設け
られたＥＧＲ量を調節するダイヤフラム駆動型の
ＥＧＲ弁と、該ＥＧＲ弁のダイヤフラムの駆動負
圧をエンジン負荷とエンジン回転数に応じて制御
する駆動負圧制御装置と、を有してなるデイーゼ
ルエンジンのＥＧＲ制御装置において、前記吸気
系通路のＥＧＲ流入部の上流側に当該吸気系通路
の面積を調節するダイヤフラム駆動型の吸気絞り
弁を設け、該吸気絞り弁のダイヤフラムの駆動負
圧として前記ＥＧＲ弁の駆動負圧を共用したこと
を特徴とするデイーゼルエンジンのＥＧＲ制御装
置。 An EGR passage that communicates the exhaust system passage and intake system passage of a diesel engine, a diaphragm-driven EGR valve that adjusts the amount of EGR provided in the EGR passage, and a driving negative pressure of the diaphragm of the EGR valve that is applied to the engine load. and a drive negative pressure control device that controls according to the engine rotation speed, the area of the intake system passage being adjusted upstream of the EGR inflow portion of the intake system passage. An EGR control device for a diesel engine, characterized in that a diaphragm-driven intake throttle valve is provided, and the driving negative pressure of the EGR valve is shared as the driving negative pressure of the diaphragm of the intake throttle valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16120585U JPS6269042U (en) | 1985-10-21 | 1985-10-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16120585U JPS6269042U (en) | 1985-10-21 | 1985-10-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6269042U true JPS6269042U (en) | 1987-04-30 |
Family
ID=31087300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16120585U Pending JPS6269042U (en) | 1985-10-21 | 1985-10-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6269042U (en) |
-
1985
- 1985-10-21 JP JP16120585U patent/JPS6269042U/ja active Pending
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