JPH0389918U - - Google Patents
Info
- Publication number
- JPH0389918U JPH0389918U JP15130589U JP15130589U JPH0389918U JP H0389918 U JPH0389918 U JP H0389918U JP 15130589 U JP15130589 U JP 15130589U JP 15130589 U JP15130589 U JP 15130589U JP H0389918 U JPH0389918 U JP H0389918U
- Authority
- JP
- Japan
- Prior art keywords
- blow
- chamber
- gas
- compartment
- oil separator
- 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
- 230000002000 scavenging effect Effects 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は、本考案の実施例を示すブローバイガ
ス還流装置の模式図である。第２図は、本考案に
かかるブローバイガス還流装置を備えたエンジン
の斜視図である。第３図は、ＰＣＶバルブ作動時
における、ブローバイガス還流装置の作動状態を
示す図である。第４図は、ＰＣＶバルブ非作動時
における、ブローバイガス還流装置の作動状態を
示す図である。
ＣＥ……エンジン、Ｓ……オイルセパレータ、
１……シリンダヘツド、２……シリンダブロツク
、３……シリンダヘツドカバー、４……オイルパ
ン、５……吸気通路、６……スロツトル弁、７…
…サージタンク、１２……クランク室、１４……
ブローバイガス室、２１……第２分室、２２……
第１分室、２３……連通部、２５……掃気通路、
２６……新気導入通路、２７……連通路、２８…
…ブローバイガス通路、３１……ＰＣＶ通路、３
２……ＰＣＶバルブ、３３……第１逆止弁、３４
……第２逆止弁。
FIG. 1 is a schematic diagram of a blow-by gas recirculation device showing an embodiment of the present invention. FIG. 2 is a perspective view of an engine equipped with a blow-by gas recirculation device according to the present invention. FIG. 3 is a diagram showing the operating state of the blow-by gas recirculation device when the PCV valve is operating. FIG. 4 is a diagram showing the operating state of the blow-by gas recirculation device when the PCV valve is not operating. CE...Engine, S...Oil separator,
1... Cylinder head, 2... Cylinder block, 3... Cylinder head cover, 4... Oil pan, 5... Intake passage, 6... Throttle valve, 7...
...Surge tank, 12...Crank chamber, 14...
Blow-by gas chamber, 21...Second branch room, 22...
1st compartment, 23... communication section, 25... scavenging passage,
26... Fresh air introduction passage, 27... Communication passage, 28...
...Blow-by gas passage, 31...PCV passage, 3
2... PCV valve, 33... First check valve, 34
...Second check valve.
Claims (1)
とオイルセパレータ室とを設け、 ブローバイガス室に対して、ブローバイガス室
とスロツトル弁下流の吸気系統とを接続するとと
もにＰＣＶバルブを備えたＰＣＶ通路と、ブロー
バイガス室とクランク室とを接続するブローバイ
ガス通路とを設け、 オイルセパレータ室に対して、オイルセパレー
タ室とスロツトル弁上流の吸気系統とを接続する
新気導入通路と、オイルセパレータ室とクランク
室とを連通する掃気通路とを設け、 かつ、オイルセパレータ室に、新気導入通路と
連通する第１分室と、掃気通路と連通する第２分
室とを、互いに連通部をもたせて形成し、該連通
部に第１分室から第２分室へのガス流れのみを許
容する第１逆止弁を設け、 さらに、ブローバイガス室と第１分室とを連通
する連通路を設け、該連通路にブローバイガス室
から第１分室へのガス流れのみを許容する第２逆
止弁を設けたことを特徴とするエンジンのブロー
バイガス還流装置。[Scope of Claim for Utility Model Registration] A blow-by gas chamber and an oil separator chamber are provided in the cylinder head cover, and the blow-by gas chamber is connected to the intake system downstream of the throttle valve, and a PCV valve is connected to the blow-by gas chamber. A blow-by gas passage connecting the blow-by gas chamber and the crank chamber is provided, and a fresh air introduction passage connecting the oil separator chamber and the intake system upstream of the throttle valve to the oil separator chamber; A scavenging passage communicating between the oil separator chamber and the crank chamber is provided, and the oil separator chamber is provided with a first compartment communicating with the fresh air introduction passage and a second compartment communicating with the scavenging passage. a first check valve that only allows gas flow from the first compartment to the second compartment, and further includes a communication passage that communicates the blow-by gas chamber and the first compartment; A blow-by gas recirculation device for an engine, characterized in that the communication path is provided with a second check valve that allows gas to flow only from the blow-by gas chamber to the first compartment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15130589U JPH0389918U (en) | 1989-12-29 | 1989-12-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15130589U JPH0389918U (en) | 1989-12-29 | 1989-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0389918U true JPH0389918U (en) | 1991-09-12 |
Family
ID=31697611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15130589U Pending JPH0389918U (en) | 1989-12-29 | 1989-12-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0389918U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003013723A (en) * | 2001-06-28 | 2003-01-15 | Yamaha Motor Co Ltd | Separator for blow-by gas |
| WO2013108723A1 (en) * | 2012-01-19 | 2013-07-25 | ヤンマー株式会社 | Engine apparatus |
| JP2017002737A (en) * | 2015-06-05 | 2017-01-05 | 愛知機械工業株式会社 | Blow-by gas recycling structure and internal combustion engine |
| JP2021001564A (en) * | 2019-06-20 | 2021-01-07 | 株式会社クボタ | Engine with blowby gas recirculation device |
-
1989
- 1989-12-29 JP JP15130589U patent/JPH0389918U/ja active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003013723A (en) * | 2001-06-28 | 2003-01-15 | Yamaha Motor Co Ltd | Separator for blow-by gas |
| JP4558984B2 (en) * | 2001-06-28 | 2010-10-06 | ヤマハ発動機株式会社 | Blow-by gas separator |
| WO2013108723A1 (en) * | 2012-01-19 | 2013-07-25 | ヤンマー株式会社 | Engine apparatus |
| JP2013148010A (en) * | 2012-01-19 | 2013-08-01 | Yanmar Co Ltd | Engine apparatus |
| CN104136725A (en) * | 2012-01-19 | 2014-11-05 | 洋马株式会社 | Engine apparatus |
| EP2806123A4 (en) * | 2012-01-19 | 2015-10-21 | Yanmar Co Ltd | Engine apparatus |
| JP2017002737A (en) * | 2015-06-05 | 2017-01-05 | 愛知機械工業株式会社 | Blow-by gas recycling structure and internal combustion engine |
| JP2021001564A (en) * | 2019-06-20 | 2021-01-07 | 株式会社クボタ | Engine with blowby gas recirculation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0389918U (en) | ||
| JPS6269013U (en) | ||
| JPS5844413U (en) | Blow-by gas reduction device in internal combustion engine | |
| JPH0234710U (en) | ||
| JPH0234713U (en) | ||
| JP2900270B2 (en) | Vehicle engine | |
| JPS587056Y2 (en) | Intake system in 2-stroke engine | |
| JPS63196412U (en) | ||
| JPS62184120U (en) | ||
| JPH0383312U (en) | ||
| JPH03112507U (en) | ||
| JPS63119812U (en) | ||
| JPS62110510U (en) | ||
| JPS61128318U (en) | ||
| JPS61116116U (en) | ||
| JPS62195616U (en) | ||
| JPS6328814U (en) | ||
| JPS5824409U (en) | Blow-by gas recirculation device for internal combustion engine | |
| JPH01108312U (en) | ||
| JPS6334317U (en) | ||
| JPS6328815U (en) | ||
| JPS5881313U (en) | Blow-by gas recirculation device for internal combustion engine | |
| JPS6317815U (en) | ||
| JPH0387808U (en) | ||
| JPS597211U (en) | Engine blow-by gas treatment device |