JPS6383454U - - Google Patents

Info

Publication number
JPS6383454U
JPS6383454U JP1986177506U JP17750686U JPS6383454U JP S6383454 U JPS6383454 U JP S6383454U JP 1986177506 U JP1986177506 U JP 1986177506U JP 17750686 U JP17750686 U JP 17750686U JP S6383454 U JPS6383454 U JP S6383454U
Authority
JP
Japan
Prior art keywords
exhaust gas
control valve
exhaust
passage
auxiliary 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
Application number
JP1986177506U
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 JP1986177506U priority Critical patent/JPS6383454U/ja
Publication of JPS6383454U publication Critical patent/JPS6383454U/ja
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves
    • F02M26/71—Multi-way valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Description

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

図面は本考案の一実施例を示し、第１図は本考
案に係る排気循環装置の構成図、第２図は第１図
のＭポート２２及びＥポート２３に夫々発生する
吸気負圧（ブースト圧）とスロツトル開度との関
係を示すグラフである。 １０……排気還流量制御弁手段、１１……メイ
ン通路、１４……主制御弁、１５ｂ……負圧室、
１５ｃ……ダイアフラム、１７……補助通路、１
８ｂ……負圧室、１８ｃ……ダイアフラム、１９
……補助通路制御弁（セカンダリ弁）、２０……
吸気通路、２１……スロツトル弁、２２……Ｍポ
ート、２３……Ｅポート、２７……サーモスイチ
ツチ、２８……一方向弁。 The drawings show one embodiment of the present invention, and FIG. 1 is a block diagram of an exhaust circulation system according to the present invention, and FIG. 2 shows the intake negative pressure (boost 2 is a graph showing the relationship between throttle opening (pressure) and throttle opening. 10... Exhaust recirculation amount control valve means, 11... Main passage, 14... Main control valve, 15b... Negative pressure chamber,
15c...Diaphragm, 17...Auxiliary passage, 1
8b...Negative pressure chamber, 18c...Diaphragm, 19
...Auxiliary passage control valve (secondary valve), 20...
Intake passage, 21...throttle valve, 22...M port, 23...E port, 27...thermo switch, 28...one-way valve.

Claims (1)

【実用新案登録請求の範囲】 (1) 内燃エンジンの排気通路と吸気通路を排気
循環路により接続し、該排気循環路途中に、スロ
ツトル弁が開弁され、吸気負圧が所定値以上の所
定負荷運転時に開弁して排気ガスの一部を吸気通
路に還流させる排気還流量制御弁手段を配設した
排気循環装置において、前記排気還流量制御弁手
段は補助通路と、該補助通路に配設され、該補助
通路を開閉する補助通路制御弁とを含み、該補助
通路制御弁は吸気負圧が前記所定値以下のワイド
オープンスロツトル時に開弁して排気ガスを前記
吸気通路側に還流させることを特徴とする排気循
環装置。 (2) 前記補助通路制御弁は、エンジン温度を表
すパラメータ値が所定温度以下の値を示すとき、
吸気負圧が前記所定値以下であつても不作動にさ
れ、排気ガスの還流を停止することを特徴とする
実用新案登録請求の範囲第１項記載の排気循環装
置。[Scope of Claim for Utility Model Registration] (1) An exhaust passage and an intake passage of an internal combustion engine are connected by an exhaust circulation path, and a throttle valve is opened in the middle of the exhaust circulation path, and the intake negative pressure is a predetermined value or more. In an exhaust circulation device including an exhaust gas recirculation amount control valve means that opens during load operation and recirculates a part of exhaust gas to the intake passage, the exhaust gas recirculation amount control valve means includes an auxiliary passage and a gas recirculation amount control valve disposed in the auxiliary passage. and an auxiliary passage control valve that opens and closes the auxiliary passage, and the auxiliary passage control valve opens at the time of wide open throttle when the intake negative pressure is below the predetermined value to recirculate the exhaust gas to the intake passage side. An exhaust circulation device characterized by: (2) When the parameter value representing the engine temperature indicates a value equal to or lower than a predetermined temperature, the auxiliary passage control valve
The exhaust gas circulation device according to claim 1, wherein the exhaust gas circulation device is inactivated and stops the recirculation of exhaust gas even if the intake negative pressure is below the predetermined value.
JP1986177506U 1986-11-20 1986-11-20 Pending JPS6383454U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986177506U JPS6383454U (en) 1986-11-20 1986-11-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986177506U JPS6383454U (en) 1986-11-20 1986-11-20

Publications (1)

Publication Number Publication Date
JPS6383454U true JPS6383454U (en) 1988-06-01

Family

ID=31118769

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986177506U Pending JPS6383454U (en) 1986-11-20 1986-11-20

Country Status (1)

Country Link
JP (1) JPS6383454U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008096488A1 (en) * 2007-02-08 2008-08-14 Yanmar Co., Ltd. Egr device for engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008096488A1 (en) * 2007-02-08 2008-08-14 Yanmar Co., Ltd. Egr device for engine
EP2112364A1 (en) * 2007-02-08 2009-10-28 Yanmar Co., Ltd. Egr device for engine
EP2112364A4 (en) * 2007-02-08 2015-04-08 Yanmar Co Ltd Egr device for engine

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