JPS6039757U - Diesel engine exhaust gas recirculation device - Google Patents

Diesel engine exhaust gas recirculation device

Info

Publication number
JPS6039757U
JPS6039757U JP13246583U JP13246583U JPS6039757U JP S6039757 U JPS6039757 U JP S6039757U JP 13246583 U JP13246583 U JP 13246583U JP 13246583 U JP13246583 U JP 13246583U JP S6039757 U JPS6039757 U JP S6039757U
Authority
JP
Japan
Prior art keywords
exhaust gas
gas recirculation
load
valve
diesel 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
Application number
JP13246583U
Other languages
Japanese (ja)
Inventor
茂 桜井
松岡　孟
西田　工
浜田　茂樹
Original Assignee
マツダ株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by マツダ株式会社 filed Critical マツダ株式会社
Priority to JP13246583U priority Critical patent/JPS6039757U/en
Publication of JPS6039757U publication Critical patent/JPS6039757U/en
Pending legal-status Critical Current

Links

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

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本考案の実施態様を例示するもので、第１図はデ
ィーゼルエンジンの排気ガス還流装置の全体構ａ図、第
２図はコントロールユニットの構成図、第３図はコント
ロールユニットの処理の流れを示す流れ図である。 １・・・・・・ディーゼルエンジン、５・・・・・・吸
気通路、１０：・・・・・吸気絞弁、１１・・・・・・
ダイヤフラム装置、１４・・・・・・排気ガス還流通路
（ＥＧＲ通路）、′１・５・・・・・・排気通路、１６
・・・・・・大径孔、１７・・・・・・小径孔、１９．
２０・・・・・・排気ガス還流弁（ＥＧＲ弁）、２９・
・・・・・コントロールユニット、１０２・・・・・・
第１ＥＧＲ弁制御手段、１０３・・・・・・第２ＥＧＲ
−弁制御手段。The drawings illustrate the embodiment of the present invention, and FIG. 1 is a diagram of the overall configuration of an exhaust gas recirculation system for a diesel engine, FIG. 2 is a configuration diagram of the control unit, and FIG. 3 is a flowchart of the processing of the control unit. FIG. 1...Diesel engine, 5...Intake passage, 10:...Intake throttle valve, 11...
Diaphragm device, 14... Exhaust gas recirculation passage (EGR passage), '1.5... Exhaust passage, 16
...... Large diameter hole, 17... Small diameter hole, 19.
20...Exhaust gas recirculation valve (EGR valve), 29.
...Control unit, 102...
First EGR valve control means, 103...Second EGR
- Valve control means.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 排気ガスの一部を吸気通路に還流する排気ガス還流通路
と、該排気ガス還流通路に並設された大径および小径の
排気ガス還流弁と、前記排気ガス還流通路の下流端開口
より上流の吸気通路に配設された吸気絞弁と、所定の負
荷以下では前記排気ガス還流弁を閉じ、所定の負荷以上
の低負荷時には前記大径の排気ガス還流弁を開（ととも
に吸気絞弁を開閉制御し、中負荷時には吸気絞弁を全開
するとともは負荷の増大に伴って大径の排気ガス還流弁
ｂ）ら小径の排気ガス還流弁に切換え、さらに高負荷時
には前記両排気ガス還流弁を閉じる排気ガス還流制御手
段とを具備することを特徴とするディーゼルエンジンの
排気ガス還流装置。an exhaust gas recirculation passage that recirculates a portion of the exhaust gas to the intake passage; a large-diameter and a small-diameter exhaust gas recirculation valve that are arranged in parallel in the exhaust gas recirculation passage; The intake throttle valve installed in the intake passage closes the exhaust gas recirculation valve when the load is below a predetermined load, and opens the large diameter exhaust gas recirculation valve when the load is lower than the predetermined load (and also opens and closes the intake throttle valve). Under medium load, the intake throttle valve is fully opened, and as the load increases, the large diameter exhaust gas recirculation valve b) is switched to the small diameter exhaust gas recirculation valve, and at high load, both exhaust gas recirculation valves are closed. 1. An exhaust gas recirculation device for a diesel engine, comprising: exhaust gas recirculation control means that closes.
JP13246583U 1983-08-26 1983-08-26 Diesel engine exhaust gas recirculation device Pending JPS6039757U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13246583U JPS6039757U (en) 1983-08-26 1983-08-26 Diesel engine exhaust gas recirculation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13246583U JPS6039757U (en) 1983-08-26 1983-08-26 Diesel engine exhaust gas recirculation device

Publications (1)

Publication Number Publication Date
JPS6039757U true JPS6039757U (en) 1985-03-19

Family

ID=30299127

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13246583U Pending JPS6039757U (en) 1983-08-26 1983-08-26 Diesel engine exhaust gas recirculation device

Country Status (1)

Country Link
JP (1) JPS6039757U (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56115841A (en) * 1980-02-14 1981-09-11 Isuzu Motors Ltd Exhaust gas recirculating device
JPS5722046U (en) * 1980-07-15 1982-02-04
JPS5732047A (en) * 1980-08-01 1982-02-20 Toyota Motor Corp Method for controlling recycle of exhaust gas
JPS5738651A (en) * 1980-08-13 1982-03-03 Nissan Motor Co Ltd Exhaust return controller for diesel engine
JPS5730365B2 (en) * 1977-10-29 1982-06-28
JPS5823261A (en) * 1981-08-04 1983-02-10 Nissan Motor Co Ltd Control device of exhaust gas recirculation in internal combustion engine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5730365B2 (en) * 1977-10-29 1982-06-28
JPS56115841A (en) * 1980-02-14 1981-09-11 Isuzu Motors Ltd Exhaust gas recirculating device
JPS5722046U (en) * 1980-07-15 1982-02-04
JPS5732047A (en) * 1980-08-01 1982-02-20 Toyota Motor Corp Method for controlling recycle of exhaust gas
JPS5738651A (en) * 1980-08-13 1982-03-03 Nissan Motor Co Ltd Exhaust return controller for diesel engine
JPS5823261A (en) * 1981-08-04 1983-02-10 Nissan Motor Co Ltd Control device of exhaust gas recirculation in internal combustion engine

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