JPS6216755U - - Google Patents
Info
- Publication number
- JPS6216755U JPS6216755U JP10631985U JP10631985U JPS6216755U JP S6216755 U JPS6216755 U JP S6216755U JP 10631985 U JP10631985 U JP 10631985U JP 10631985 U JP10631985 U JP 10631985U JP S6216755 U JPS6216755 U JP S6216755U
- Authority
- JP
- Japan
- Prior art keywords
- negative pressure
- exhaust gas
- throttle valve
- valve
- gas recirculation
- 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 3
- 238000011144 upstream manufacturing Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
第１図は本考案の実施例１の概略図であり、第
２図は本考案の実施例２の概略図である。
１……内燃機関本体、２……吸気通路、５……
スロツトルバルブ、６……機械式過給機、１１…
…排気通路、１２……排気ガス再循環通路、１５
……負圧切換弁、２０……ＥＣＵ、２１……第１
負圧取出ポート、２２……第２負圧取出ポート、
３０……排気ガス再循環制御弁、４０……調圧弁
。
FIG. 1 is a schematic diagram of a first embodiment of the present invention, and FIG. 2 is a schematic diagram of a second embodiment of the present invention. 1...Internal combustion engine body, 2...Intake passage, 5...
Throttle valve, 6... Mechanical supercharger, 11...
...Exhaust passage, 12...Exhaust gas recirculation passage, 15
... Negative pressure switching valve, 20 ... ECU, 21 ... 1st
Negative pressure extraction port, 22...Second negative pressure extraction port,
30...Exhaust gas recirculation control valve, 40...Pressure regulating valve.
Claims (1)
機を備え、排気ガスの一部を排気通路から排気ガ
ス再循環通路を介して前記過給機の下流の吸気通
路へ循環させる排気ガス再循環装置を備え、前記
排気ガス再循環通路に負圧式ＥＧＲ制御弁を設け
、スロツトルバルブの閉弁時該スロツトルバルブ
の上流、開弁時その下流に位置する第１負圧取出
ポートと、スロツトルバルブ下流で過給機上流に
位置する第２負圧取出ポートとをそれぞれ吸気通
路に設け、該第１及び第２負圧取出ポートを負圧
切換弁を介して前記負圧式ＥＧＲ制御弁に接続し
、内燃機関の減速時のみ前記第２負圧取出ポート
の負圧を前記負圧式ＧＲ制御弁に導くようにした
ことを特徴とする内燃機関の排気ガス再循環装置
。 An exhaust gas recirculation device that includes a mechanical supercharger in the intake passage downstream of the throttle valve and circulates a portion of the exhaust gas from the exhaust passage to the intake passage downstream of the supercharger via the exhaust gas recirculation passage. A negative pressure type EGR control valve is provided in the exhaust gas recirculation passage, and a first negative pressure outlet port located upstream of the throttle valve when the throttle valve is closed and downstream of the throttle valve when the throttle valve is open; A second negative pressure outlet port located downstream of the valve and upstream of the supercharger is provided in each intake passage, and the first and second negative pressure outlet ports are connected to the negative pressure type EGR control valve via a negative pressure switching valve. An exhaust gas recirculation device for an internal combustion engine, characterized in that the negative pressure of the second negative pressure outlet port is guided to the negative pressure type GR control valve only when the internal combustion engine is decelerating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10631985U JPS6216755U (en) | 1985-07-13 | 1985-07-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10631985U JPS6216755U (en) | 1985-07-13 | 1985-07-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6216755U true JPS6216755U (en) | 1987-01-31 |
Family
ID=30981563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10631985U Pending JPS6216755U (en) | 1985-07-13 | 1985-07-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6216755U (en) |
-
1985
- 1985-07-13 JP JP10631985U patent/JPS6216755U/ja active Pending
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