JPS6272450U - - Google Patents

Info

Publication number
JPS6272450U
JPS6272450U JP16361085U JP16361085U JPS6272450U JP S6272450 U JPS6272450 U JP S6272450U JP 16361085 U JP16361085 U JP 16361085U JP 16361085 U JP16361085 U JP 16361085U JP S6272450 U JPS6272450 U JP S6272450U
Authority
JP
Japan
Prior art keywords
compression ratio
egr
control valve
engine
egr gas
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.)
Granted
Application number
JP16361085U
Other languages
Japanese (ja)
Other versions
JPH0426673Y2 (en
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 JP1985163610U priority Critical patent/JPH0426673Y2/ja
Publication of JPS6272450U publication Critical patent/JPS6272450U/ja
Application granted granted Critical
Publication of JPH0426673Y2 publication Critical patent/JPH0426673Y2/ja
Expired legal-status Critical Current

Links

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  • Exhaust-Gas Circulating Devices (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Description

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

第１図は本考案の第１実施例に係る可変圧縮比
機関の概略構成図、第２図は本考案の第２実施例
に係る可変圧縮比機関の概略構成図、第３図は第
１図の装置における圧縮比制御機構部の縦断面図
、第４図は第３図の装置の直角方向からみた縦断
面図、である。 １……圧縮比制御機構、２……ＣＰＵ、６……
吸気管、７……スロツトルバルブ、８……スロツ
トル開度ポート８、９……ＥＧＲポート、１０…
…ＥＧＲガス導入ポート、１１……ＥＧＲバルブ
、１３……負圧導入通路、１４……ＥＧＲバキユ
ームモジユレータ、１７，１８……制御弁として
のバキユームスイツチングバルブ、２０……コネ
クテイングロツド、２１……ピストンピン、２２
……偏心ベアリング、２３……ロツクピン、２４
……ロツクピン収納孔、２５……ロツクピン係合
孔、２６，２７……ロツクピン駆動用油圧通路、
３３……高圧縮比用オイルホール、３４……低圧
縮比用オイルホール。 1 is a schematic diagram of a variable compression ratio engine according to a first embodiment of the present invention, FIG. 2 is a schematic diagram of a variable compression ratio engine according to a second embodiment of the present invention, and FIG. 3 is a diagram of a variable compression ratio engine according to a second embodiment of the present invention. FIG. 4 is a vertical cross-sectional view of the compression ratio control mechanism section of the apparatus shown in FIG. 3, and FIG. 4 is a vertical cross-sectional view of the apparatus shown in FIG. 1... Compression ratio control mechanism, 2... CPU, 6...
Intake pipe, 7... Throttle valve, 8... Throttle opening port 8, 9... EGR port, 10...
...EGR gas introduction port, 11...EGR valve, 13...Negative pressure introduction passage, 14...EGR vacuum modulator, 17, 18...Vacuum switching valve as control valve, 20...Connecting Rod, 21...Piston pin, 22
... Eccentric bearing, 23 ... Lock pin, 24
... Lock pin storage hole, 25 ... Lock pin engagement hole, 26, 27 ... Hydraulic passage for lock pin drive,
33...Oil hole for high compression ratio, 34...Oil hole for low compression ratio.

Claims (1)

【実用新案登録請求の範囲】 (1) 圧縮比を可変可能な圧縮比制御機構を備え
た可変圧縮比機関のＥＧＲ制御系路に、機関の圧
縮比に応じて、低圧縮比時にＥＧＲガス量を小に
し高圧縮比時にＥＧＲガス量を大に制御する制御
弁を設けたことを特徴とする可変圧縮比機関。 (2) 前記制御弁が低圧縮比時にＥＧＲをカツト
する制御弁である実用新案登録請求の範囲第１項
記載の可変圧縮比機関。[Claims for Utility Model Registration] (1) In the EGR control system of a variable compression ratio engine equipped with a compression ratio control mechanism that can vary the compression ratio, the amount of EGR gas is controlled at low compression ratios according to the compression ratio of the engine. A variable compression ratio engine is provided with a control valve that controls a large amount of EGR gas at a high compression ratio by reducing the amount of EGR gas. (2) The variable compression ratio engine according to claim 1, wherein the control valve is a control valve that cuts off EGR when the compression ratio is low.
JP1985163610U 1985-10-26 1985-10-26 Expired JPH0426673Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985163610U JPH0426673Y2 (en) 1985-10-26 1985-10-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985163610U JPH0426673Y2 (en) 1985-10-26 1985-10-26

Publications (2)

Publication Number Publication Date
JPS6272450U true JPS6272450U (en) 1987-05-09
JPH0426673Y2 JPH0426673Y2 (en) 1992-06-26

Family

ID=31091964

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985163610U Expired JPH0426673Y2 (en) 1985-10-26 1985-10-26

Country Status (1)

Country Link
JP (1) JPH0426673Y2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7213543B2 (en) 2003-04-04 2007-05-08 Toyota Jidosha Kabushiki Kaisha Technique of detecting failure of compression ratio varying mechanism and controlling internal combustion engine
US11306649B2 (en) 2018-04-26 2022-04-19 Ihi Corporation Engine system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52113428A (en) * 1976-03-19 1977-09-22 Toyota Motor Corp Internal combustion engine provided with exhaust gas recirculating mea ns

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52113428A (en) * 1976-03-19 1977-09-22 Toyota Motor Corp Internal combustion engine provided with exhaust gas recirculating mea ns

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7213543B2 (en) 2003-04-04 2007-05-08 Toyota Jidosha Kabushiki Kaisha Technique of detecting failure of compression ratio varying mechanism and controlling internal combustion engine
US11306649B2 (en) 2018-04-26 2022-04-19 Ihi Corporation Engine system

Also Published As

Publication number Publication date
JPH0426673Y2 (en) 1992-06-26

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