JPH0219861U - - Google Patents
Info
- Publication number
- JPH0219861U JPH0219861U JP9819288U JP9819288U JPH0219861U JP H0219861 U JPH0219861 U JP H0219861U JP 9819288 U JP9819288 U JP 9819288U JP 9819288 U JP9819288 U JP 9819288U JP H0219861 U JPH0219861 U JP H0219861U
- Authority
- JP
- Japan
- Prior art keywords
- passage
- egr
- exhaust
- internal combustion
- combustion engine
- 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 7
- 230000000903 blocking effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 1
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Description
第１図は本考案の実施例に係る過給機付内燃機
関に於けるＥＧＲ装置の制御装置が通常運転状態
にある時の排気ガスの流れを示す説明図である。
第２図は本考案の実施例に係る過給機付内燃機関
に於けるＥＧＲ装置の制御装置が急加速運転状態
にある時の排気ガスの流れを示す説明図である。
第３図は従来の過給機付内燃機関に於けるＥＧＲ
装置の制御装置を示す説明図である。
主要な部分の符号の説明、２０……エンジン、
２１……吸気マニホールド、２２……排気マニホ
ールド、２３……吸気通路、２４……排気通路、
２５……過給機、２６……コンプレツサー、２７
……タービン、３３……ＥＧＲ通路、３７……Ｅ
ＧＲ遮断用バルブ、３８……アクチユエータ、３
９……第一室、４０……第二室、４１……可動体
、４３，４４……通路、ＰＩ……吸気通路２３の
圧力、ＰＥ……排気通路２４の圧力。
FIG. 1 is an explanatory diagram showing the flow of exhaust gas when the control device of the EGR device in the supercharged internal combustion engine according to the embodiment of the present invention is in a normal operating state.
FIG. 2 is an explanatory diagram showing the flow of exhaust gas when the control device of the EGR device in the supercharged internal combustion engine according to the embodiment of the present invention is in a rapid acceleration operation state.
Figure 3 shows EGR in a conventional supercharged internal combustion engine.
FIG. 2 is an explanatory diagram showing a control device of the device. Explanation of symbols of main parts, 20...Engine,
21...Intake manifold, 22...Exhaust manifold, 23...Intake passage, 24...Exhaust passage,
25...supercharger, 26...compressor, 27
...Turbine, 33...EGR passage, 37...E
GR shutoff valve, 38...actuator, 3
9...First chamber, 40...Second chamber, 41...Movable body, 43, 44...Passage, PI...Pressure in the intake passage 23, PE...Pressure in the exhaust passage 24.
Claims (1)
ホールドとを連通する吸気通路と、過給機のター
ビンと内燃機関の排気マニホールドとを連通する
排気通路と、この排気通路と吸気通路とを連通し
、この吸気通路との連通部近傍にＥＧＲ量制御バ
ルブを備えたＥＧＲ通路とを有する過給機付内燃
機関に於けるＥＧＲ装置の制御装置に於て、上記
ＥＧＲ通路に於ける排気通路との連結部近傍にＥ
ＧＲ通路遮断用バルブを設け、このＥＧＲ通路遮
断用バルブに、内部を可動体によつて２室に仕切
つて成るアクチユエータを取り付け、このアクチ
ユエータの一方の室を上記排気通路と連通し、他
方の室を上記吸気通路と連通し、吸気通路の圧力
が排気通路の圧力より高い時にＥＧＲ通路遮断用
バルブを閉じ、吸気通路の圧力が排気通路の圧力
より低い時にＥＧＲ通路遮断用バルブを開くよう
に構成したことを特徴とする過給機付内燃機関に
於けるＥＧＲ装置の制御装置。 An intake passage that communicates between the compressor of the supercharger and the intake manifold of the internal combustion engine; an exhaust passage that communicates the turbine of the supercharger with the exhaust manifold of the internal combustion engine; In a control device for an EGR device in a supercharged internal combustion engine having an EGR passage equipped with an EGR amount control valve near the communication part with the intake passage, the connection part of the EGR passage with the exhaust passage E nearby
A GR passage cutoff valve is provided, and an actuator whose interior is partitioned into two chambers by a movable body is attached to the EGR passage cutoff valve, one chamber of the actuator is communicated with the exhaust passage, and the other chamber is connected to the exhaust passage. is configured to communicate with the intake passage, close the EGR passage blocking valve when the pressure in the intake passage is higher than the pressure in the exhaust passage, and open the EGR passage blocking valve when the pressure in the intake passage is lower than the pressure in the exhaust passage. A control device for an EGR device in a supercharged internal combustion engine, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9819288U JPH0219861U (en) | 1988-07-25 | 1988-07-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9819288U JPH0219861U (en) | 1988-07-25 | 1988-07-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0219861U true JPH0219861U (en) | 1990-02-09 |
Family
ID=31324238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9819288U Pending JPH0219861U (en) | 1988-07-25 | 1988-07-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0219861U (en) |
-
1988
- 1988-07-25 JP JP9819288U patent/JPH0219861U/ja active Pending
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