JPH0222659U - - Google Patents

Info

Publication number
JPH0222659U
JPH0222659U JP10099988U JP10099988U JPH0222659U JP H0222659 U JPH0222659 U JP H0222659U JP 10099988 U JP10099988 U JP 10099988U JP 10099988 U JP10099988 U JP 10099988U JP H0222659 U JPH0222659 U JP H0222659U
Authority
JP
Japan
Prior art keywords
exhaust
valve
opening area
passage
egr
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
JP10099988U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP10099988U priority Critical patent/JPH0222659U/ja
Publication of JPH0222659U publication Critical patent/JPH0222659U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Exhaust-Gas Circulating Devices (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Description

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

図面はこの考案の一実施例を示し、第１図はデ
イーゼルエンジンの排気還流装置を示す系統図、
第２図はＲＡＭに記憶させたマツプの説明図、第
３図はエンジン負荷に対するＥＧＲ率の定常特性
図、第４図はエンジン負荷に対するＥＧＲ率の制
御特性図、第５図はＲＡＭに記憶させたマツプの
他の実施例を示す説明図である。 ８……吸気通路、９……排気通路、１０……排
気シヤツタバルブ、１９……ＥＧＲガス取出口、
２０……ＥＧＲ通路、２１……第１ＥＧＲ弁、２
２……第２ＥＧＲ弁、２３，２４……アクチユエ
ータ、４０……ＣＰＵ。 The drawings show one embodiment of this invention, and Fig. 1 is a system diagram showing an exhaust gas recirculation device for a diesel engine;
Fig. 2 is an explanatory diagram of the map stored in RAM, Fig. 3 is a steady characteristic diagram of EGR rate with respect to engine load, Fig. 4 is a control characteristic diagram of EGR rate with respect to engine load, and Fig. 5 is a diagram of the control characteristic of EGR rate with respect to engine load. FIG. 6 is an explanatory diagram showing another example of the map. 8... Intake passage, 9... Exhaust passage, 10... Exhaust shutter valve, 19... EGR gas outlet,
20...EGR passage, 21...1st EGR valve, 2
2... Second EGR valve, 23, 24... Actuator, 40... CPU.

Claims (1)

【実用新案登録請求の範囲】 排気通路の中途部に排気シヤツタバルブを設け
、 上記排気シヤツタバルブ上流に設けたＥＧＲガ
ス取出口を排気還流通路を介して吸気通路に連通
し、暖機促進のためエンジン低負荷時に上記排気
シヤツタバルブを閉作動するデイーゼルエンジン
の排気還流装置において、 上記排気還流通路に設けたＥＧＲ弁と、 該ＥＧＲ弁の開口面積を変化させる可変手段と
、 エンジン低負荷時における上記排気シヤツタバ
ルブの閉成に基づいて上記可変手段を開口面積減
少側に制御する制御手段とを備えた、 デイーゼルエンジンの排気還流装置。[Scope of Claim for Utility Model Registration] An exhaust shutter valve is provided in the middle of the exhaust passage, and the EGR gas outlet provided upstream of the exhaust shutter valve is communicated with the intake passage via the exhaust recirculation passage, thereby lowering the engine temperature to promote warm-up. An exhaust recirculation system for a diesel engine that closes the exhaust shutter valve when the engine is under load, comprising: an EGR valve provided in the exhaust recirculation passage; a variable means for changing the opening area of the EGR valve; and a variable means for changing the opening area of the EGR valve; An exhaust gas recirculation device for a diesel engine, comprising: control means for controlling the variable means to reduce the opening area based on the closed state.
JP10099988U 1988-07-28 1988-07-28 Pending JPH0222659U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10099988U JPH0222659U (en) 1988-07-28 1988-07-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10099988U JPH0222659U (en) 1988-07-28 1988-07-28

Publications (1)

Publication Number Publication Date
JPH0222659U true JPH0222659U (en) 1990-02-15

Family

ID=31329591

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10099988U Pending JPH0222659U (en) 1988-07-28 1988-07-28

Country Status (1)

Country Link
JP (1) JPH0222659U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05231247A (en) * 1991-07-31 1993-09-07 Mitsubishi Automob Eng Co Ltd Emulsion fuel engine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6132122U (en) * 1984-07-30 1986-02-26 株式会社椿本チエイン Hanger product sorting device
JPS6117171B2 (en) * 1976-10-22 1986-05-06 Seiko Denshi Kogyo Kk

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6117171B2 (en) * 1976-10-22 1986-05-06 Seiko Denshi Kogyo Kk
JPS6132122U (en) * 1984-07-30 1986-02-26 株式会社椿本チエイン Hanger product sorting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05231247A (en) * 1991-07-31 1993-09-07 Mitsubishi Automob Eng Co Ltd Emulsion fuel engine

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