JPH0351121U - - Google Patents
Info
- Publication number
- JPH0351121U JPH0351121U JP11162889U JP11162889U JPH0351121U JP H0351121 U JPH0351121 U JP H0351121U JP 11162889 U JP11162889 U JP 11162889U JP 11162889 U JP11162889 U JP 11162889U JP H0351121 U JPH0351121 U JP H0351121U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- combustion engine
- internal combustion
- oil mist
- oil
- 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
- 239000003595 mist Substances 0.000 claims description 7
- 238000002485 combustion reaction Methods 0.000 claims 6
- 238000009423 ventilation Methods 0.000 claims 2
- 230000002159 abnormal effect Effects 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000006262 metallic foam Substances 0.000 description 1
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Description
第１図は本考案の第１の実施例の略示図、第２
図はＰＣＶバルブの流量特性曲線図、第３図は第
１の実施例の作動を表わすフローチヤート、第４
図は本考案の第２の実施例の略示図、第５図は同
上実施例の作動を示すフローチヤート、第６図及
び第７図は本考案の第３と第４の実施例を示す略
示図である。
１……シリンダヘツドカバー、２……ＰＣＶバ
ルブ、３，５……連通管、４……オイルミストセ
パレータ、６……オイル戻り管、７……電磁遮断
弁、８……エンジンインテークマニホルド、９，
１０……圧力変換器、１１……クランクケース、
１２……オイルパン、１５……ＥＣＵ、１６……
警報ランプ、２１……予備オイルミストセパレー
タ、２２，２３……電磁三方弁、２４……オイル
戻り管、２５……電磁遮断弁、３１……フロート
、３２……スイツチ、４１，４２……金属発泡体
フイルタ、４３，４４……圧力変換器。
FIG. 1 is a schematic diagram of the first embodiment of the present invention;
The figure is a flow chart of the PCV valve, FIG. 3 is a flowchart showing the operation of the first embodiment, and FIG.
The figure is a schematic diagram of the second embodiment of the present invention, Figure 5 is a flow chart showing the operation of the same embodiment, and Figures 6 and 7 are the third and fourth embodiments of the present invention. FIG. 1... Cylinder head cover, 2... PCV valve, 3, 5... Communication pipe, 4... Oil mist separator, 6... Oil return pipe, 7... Electromagnetic cutoff valve, 8... Engine intake manifold, 9 ，
10...Pressure transducer, 11...Crank case,
12...Oil pan, 15...ECU, 16...
Alarm lamp, 21... Spare oil mist separator, 22, 23... Solenoid three-way valve, 24... Oil return pipe, 25... Solenoid cutoff valve, 31... Float, 32... Switch, 41, 42... Metal Foam filter, 43, 44...pressure transducer.
Claims (1)
タを設け、そのオイルミストセパレータを通して
ブローバイガスを吸気管に還流し、燃焼室で再燃
焼させる内燃機関のポジテイブクランクケースベ
ンチレーシヨン装置において、 ブローバイガスから分離したオイルを内燃機関
のオイル溜めに戻すオイル通路に設けた遮断弁を
内燃機関の運転条件に応じて開閉すると共に、 上記ブローバイガス流路のオイルミストセパレ
ータ圧力と該オイルミストセパレータ下流側の吸
気管圧力をそれぞれ計測する圧力計測手段と、 上記圧力計測手段で計測したオイルミストセパ
レータ圧力と吸気管圧力との圧力差を算出すると
共に、内燃機関の所定運転条件において上記圧力
差が設定値以上となつた場合に外部に異常信号を
出力する差圧判定手段とを備えた内燃機関のポジ
テイブクランクケースベンチレーシヨン装置。[Claim for Utility Model Registration] A positive crankcase ventilation device for an internal combustion engine in which an oil mist separator is provided upstream of a PCV valve, blow-by gas is returned to the intake pipe through the oil mist separator, and re-burned in the combustion chamber. In this step, a shutoff valve provided in an oil passage that returns oil separated from the blow-by gas to the oil reservoir of the internal combustion engine is opened and closed depending on the operating conditions of the internal combustion engine, and the pressure of the oil mist separator in the blow-by gas passage and the oil mist are controlled. a pressure measuring means for measuring the intake pipe pressure on the downstream side of the separator; and a pressure measuring means for calculating the pressure difference between the oil mist separator pressure and the intake pipe pressure measured by the pressure measuring means, and calculating the pressure difference under predetermined operating conditions of the internal combustion engine. A positive crankcase ventilation device for an internal combustion engine, comprising differential pressure determining means for outputting an abnormal signal to the outside when the pressure exceeds a set value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11162889U JPH0351121U (en) | 1989-09-26 | 1989-09-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11162889U JPH0351121U (en) | 1989-09-26 | 1989-09-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0351121U true JPH0351121U (en) | 1991-05-17 |
Family
ID=31660099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11162889U Pending JPH0351121U (en) | 1989-09-26 | 1989-09-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0351121U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6338329B2 (en) | 1996-12-24 | 2002-01-15 | Denso Corporation | Blow-by gas passage abnormality detecting system for internal combustion engines |
| JP2010096032A (en) * | 2008-10-14 | 2010-04-30 | Toyota Motor Corp | Abnormality determination device for blow-by gas treatment system |
| EP1520961A3 (en) * | 2003-10-03 | 2010-11-03 | General Electric Company | Methods for controlling lubrication oil draining in gas turbine engines |
| EP2252776A1 (en) * | 2008-03-18 | 2010-11-24 | Volvo Lastvagnar AB | Method for functional diagnosis of a separator |
| JP2014114729A (en) * | 2012-12-07 | 2014-06-26 | Suzuki Motor Corp | Pressure sensor arrangement structure of engine unit |
| JP2015121195A (en) * | 2013-12-25 | 2015-07-02 | ボルボトラックコーポレーション | Blow-by gas recirculation device |
| WO2017038517A1 (en) * | 2015-09-04 | 2017-03-09 | 株式会社デンソー | Error diagnosis device for internal combustion engine having supercharger |
| JP2020183737A (en) * | 2019-05-09 | 2020-11-12 | トヨタ自動車株式会社 | Blow-by gas treatment device |
| WO2021199980A1 (en) * | 2020-03-31 | 2021-10-07 | いすゞ自動車株式会社 | Abnormality cause identification device and abnormality cause identification method |
-
1989
- 1989-09-26 JP JP11162889U patent/JPH0351121U/ja active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6338329B2 (en) | 1996-12-24 | 2002-01-15 | Denso Corporation | Blow-by gas passage abnormality detecting system for internal combustion engines |
| EP1520961A3 (en) * | 2003-10-03 | 2010-11-03 | General Electric Company | Methods for controlling lubrication oil draining in gas turbine engines |
| US9031768B2 (en) | 2008-03-18 | 2015-05-12 | Volvo Lastvagnar Ab | Method for functional diagnosis of a separator |
| EP2252776A1 (en) * | 2008-03-18 | 2010-11-24 | Volvo Lastvagnar AB | Method for functional diagnosis of a separator |
| JP2011515612A (en) * | 2008-03-18 | 2011-05-19 | ボルボ ラストバグナー アーベー | Separator function diagnosis method |
| EP2252776A4 (en) * | 2008-03-18 | 2011-08-24 | Volvo Lastvagnar Ab | Method for functional diagnosis of a separator |
| JP2010096032A (en) * | 2008-10-14 | 2010-04-30 | Toyota Motor Corp | Abnormality determination device for blow-by gas treatment system |
| JP2014114729A (en) * | 2012-12-07 | 2014-06-26 | Suzuki Motor Corp | Pressure sensor arrangement structure of engine unit |
| JP2015121195A (en) * | 2013-12-25 | 2015-07-02 | ボルボトラックコーポレーション | Blow-by gas recirculation device |
| WO2017038517A1 (en) * | 2015-09-04 | 2017-03-09 | 株式会社デンソー | Error diagnosis device for internal combustion engine having supercharger |
| JP2017048776A (en) * | 2015-09-04 | 2017-03-09 | 株式会社デンソー | Abnormality diagnosis device of internal combustion engine with supercharger |
| JP2020183737A (en) * | 2019-05-09 | 2020-11-12 | トヨタ自動車株式会社 | Blow-by gas treatment device |
| WO2021199980A1 (en) * | 2020-03-31 | 2021-10-07 | いすゞ自動車株式会社 | Abnormality cause identification device and abnormality cause identification method |
| JP2021161926A (en) * | 2020-03-31 | 2021-10-11 | いすゞ自動車株式会社 | Abnormality cause specification device and abnormality cause specification method |
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