JPS59562U - Negative pressure extraction device for exhaust gas recirculation system - Google Patents
Negative pressure extraction device for exhaust gas recirculation systemInfo
- Publication number
- JPS59562U JPS59562U JP5965483U JP5965483U JPS59562U JP S59562 U JPS59562 U JP S59562U JP 5965483 U JP5965483 U JP 5965483U JP 5965483 U JP5965483 U JP 5965483U JP S59562 U JPS59562 U JP S59562U
- Authority
- JP
- Japan
- Prior art keywords
- negative pressure
- exhaust gas
- gas recirculation
- small chamber
- intake passage
- 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
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の排気還流装置の一例を説明する図、第２
図は本考案の一実施例である絞り弁室の断面図、第３図
は第２図の絞り弁室によるＥＧＲ管の負圧上昇を急加速
時と一加速時とで比較して示した線図、第４図および第
５図は第２図に示す実施例と従来装置との急加速時にお
ける特性を比較した線図である。
１・・・絞り弁室、２・・・絞り弁、３・・・吸気路、
４・・・エンジン、５・・・負圧管（ＥＧＲ管）、６・
・・排気路、７・・・排気還流路、１０・・・排気還流
弁（ＥＧＲ弁）、 □２０・・・制御弁、３１・・
・第１オリフイス、３２・・・第２オリフイス、３３・
・・コンビネーションオリフィス。Figure 1 is a diagram explaining an example of a conventional exhaust gas recirculation system, Figure 2
The figure is a cross-sectional view of the throttle valve chamber, which is an embodiment of the present invention, and Figure 3 shows a comparison of the rise in negative pressure in the EGR pipe due to the throttle valve chamber in Figure 2 during sudden acceleration and during one acceleration. 4 and 5 are diagrams comparing the characteristics of the embodiment shown in FIG. 2 and the conventional device at the time of sudden acceleration. 1... Throttle valve chamber, 2... Throttle valve, 3... Intake path,
4... Engine, 5... Negative pressure pipe (EGR pipe), 6...
...Exhaust path, 7...Exhaust recirculation path, 10...Exhaust gas recirculation valve (EGR valve), □20...Control valve, 31...
・First orifice, 32...Second orifice, 33・
...Combination orifice.
Claims (1)
排気還流路の途中に設けら−れた弁体、前記弁体と連結
され前記弁体を駆動するダイヤフラム、前記ダイヤフラ
ムにより形成された負圧作動室、前記負圧作動室に前記
吸気路の絞り弁付近に発生する負圧を導びく負圧管とよ
りなる排気ガス還流装置において、前記絞り弁付近の前
記吸気路の壁部に前記負圧管と接続された第１小室およ
び前記第１小室と細孔を介して連通された第２小室を形
成し、前記第２小室は前記絞り弁付近の前記吸気路に第
２開口部を介して連通し、前記第１小室は第１開口部を
介して前記第２開口部の上流側の前記吸気路に連通−し
ていることを特徴とする排気ガス還流装置の負圧取り出
し装置。an exhaust gas recirculation path that communicates the intake path and exhaust path of the engine; a valve body provided in the middle of the exhaust gas recirculation path; a diaphragm connected to the valve body and driving the valve body; In an exhaust gas recirculation device comprising a pressure working chamber and a negative pressure pipe that guides negative pressure generated near a throttle valve in the intake passage to the negative pressure working chamber, the negative pressure is applied to a wall of the intake passage near the throttle valve. A first small chamber connected to the pressure pipe and a second small chamber communicated with the first small chamber through a pore are formed, and the second small chamber is connected to the intake passage near the throttle valve through a second opening. A negative pressure extraction device for an exhaust gas recirculation device, wherein the first small chamber communicates with the intake passage upstream of the second opening through a first opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5965483U JPS59562U (en) | 1983-04-21 | 1983-04-21 | Negative pressure extraction device for exhaust gas recirculation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5965483U JPS59562U (en) | 1983-04-21 | 1983-04-21 | Negative pressure extraction device for exhaust gas recirculation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59562U true JPS59562U (en) | 1984-01-05 |
| JPS6111495Y2 JPS6111495Y2 (en) | 1986-04-11 |
Family
ID=30189896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5965483U Granted JPS59562U (en) | 1983-04-21 | 1983-04-21 | Negative pressure extraction device for exhaust gas recirculation system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59562U (en) |
-
1983
- 1983-04-21 JP JP5965483U patent/JPS59562U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6111495Y2 (en) | 1986-04-11 |
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