JPH02122153U - - Google Patents
Info
- Publication number
- JPH02122153U JPH02122153U JP2981989U JP2981989U JPH02122153U JP H02122153 U JPH02122153 U JP H02122153U JP 2981989 U JP2981989 U JP 2981989U JP 2981989 U JP2981989 U JP 2981989U JP H02122153 U JPH02122153 U JP H02122153U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- gas recirculation
- occurrence
- engine
- 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.)
- Pending
Links
- 239000000446 fuel Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 1
- 238000005325 percolation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 1
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Description
第１図は本考案の第１実施例の全体構成図、第
２図はその排気ガス還流制御ルーチンのフローチ
ヤート、第３図、第４図は温度センサの配置構造
を示す図、第５図は本考案の第２実施例の全体構
成図、第６図〜第８図はその動作の説明図、第９
図、第１０図は空燃比の変化を示すグラフである
。
１……気化器、２Ａ……プライマリ吸気通路、
２Ｂ……セカンダリ吸気通路、３Ａ，３Ｂ……ス
ロツトル弁、４……排気通路、５……排気ガス還
流通路、６……排気ガス還流口、７，８……負圧
取出口、１１，１２……流量制御弁、１４，２０
……ダイヤフラム装置、１７，２３……負圧導管
、２５……コントロールユニツト、２８……温度
センサ、３０……吸気マニホールド、４５……冷
却水通路、４６……ワツクス、４７……弁、５０
……摺動弁。
Figure 1 is an overall configuration diagram of the first embodiment of the present invention, Figure 2 is a flowchart of its exhaust gas recirculation control routine, Figures 3 and 4 are diagrams showing the arrangement structure of the temperature sensor, and Figure 5. 9 is an overall configuration diagram of the second embodiment of the present invention, FIGS. 6 to 8 are explanatory diagrams of its operation, and FIG.
, and FIG. 10 are graphs showing changes in the air-fuel ratio. 1... Carburetor, 2A... Primary intake passage,
2B... Secondary intake passage, 3A, 3B... Throttle valve, 4... Exhaust passage, 5... Exhaust gas recirculation passage, 6... Exhaust gas recirculation port, 7, 8... Negative pressure outlet, 11, 12 ...Flow control valve, 14,20
... Diaphragm device, 17, 23 ... Negative pressure conduit, 25 ... Control unit, 28 ... Temperature sensor, 30 ... Intake manifold, 45 ... Cooling water passage, 46 ... Wax, 47 ... Valve, 50
...Sliding valve.
Claims (1)
流装置を備えたエンジンにおいて、 燃料供給装置におけるパーコレーシヨンの発生
状態を検出する手段と、 上記パーコレーシヨンの発生状態が検出された
場合、これに応答して上記排気ガス還流装置にお
ける排気ガス還流量の減量もしくは排気ガス還流
停止を行なう制御手段と、 を備えていることを特徴とするエンジンの排気
ガス還流制御装置。[Scope of Claim for Utility Model Registration] In an engine equipped with an exhaust gas recirculation device that recirculates a portion of exhaust gas to an intake system, means for detecting the occurrence of percolation in a fuel supply device; Exhaust gas recirculation for an engine, comprising: control means for reducing the amount of exhaust gas recirculation or stopping the exhaust gas recirculation in the exhaust gas recirculation device in response to the detection of the occurrence state. Control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2981989U JPH02122153U (en) | 1989-03-17 | 1989-03-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2981989U JPH02122153U (en) | 1989-03-17 | 1989-03-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02122153U true JPH02122153U (en) | 1990-10-05 |
Family
ID=31254362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2981989U Pending JPH02122153U (en) | 1989-03-17 | 1989-03-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02122153U (en) |
-
1989
- 1989-03-17 JP JP2981989U patent/JPH02122153U/ja active Pending
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