JPH0387808U - - Google Patents
Info
- Publication number
- JPH0387808U JPH0387808U JP14682889U JP14682889U JPH0387808U JP H0387808 U JPH0387808 U JP H0387808U JP 14682889 U JP14682889 U JP 14682889U JP 14682889 U JP14682889 U JP 14682889U JP H0387808 U JPH0387808 U JP H0387808U
- Authority
- JP
- Japan
- Prior art keywords
- crankcase
- exhaust passage
- blowby gas
- cylinder head
- internal pressure
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Description
第１図は、本考案の実施例に係るブローバイガ
ス還流制御装置を備えたデイーゼルエンジンの概
略構造図である。第２図は、第１図のＡ印部分の
拡大図である。
１……デイーゼルエンジン、２……クランクケ
ース、３……シリンダヘツド、４……ブローバイ
通路、５……オイルリターン通路、６……オイル
セパレータ、７……吸気通路、８……バルブ、９
……ダイヤフラム、１０……ピストン、１１……
排気通路、１３……ブローバイガス排出通路。
FIG. 1 is a schematic structural diagram of a diesel engine equipped with a blow-by gas recirculation control device according to an embodiment of the present invention. FIG. 2 is an enlarged view of the portion marked A in FIG. 1. 1... Diesel engine, 2... Crank case, 3... Cylinder head, 4... Blow-by passage, 5... Oil return passage, 6... Oil separator, 7... Intake passage, 8... Valve, 9
...Diaphragm, 10...Piston, 11...
Exhaust passage, 13... blow-by gas exhaust passage.
Claims (1)
した吸気通路へのブローバイガスの還流を制御す
る装置において、クランクケースと排気通路とを
連通するブローバイガス排出通路と、クランクケ
ースの内圧とシリンダヘツドの内圧との差圧によ
つて作動するバルブであつて、クランクケースの
内圧とシリンダヘツドの内圧との差圧が所定値未
満の時は前記クランクケースと排気通路とを連通
するブローバイガス排出通路を閉鎖し、前記差圧
が前記所定値以上の時は前記クランクケースと排
気通路とを連通するブローバイガス排気通路を開
放するバルブとを備えて成ることを特徴とするデ
イーゼルエンジンのブローバイガス還流制御装置
。 In a device that controls the return of blowby gas to the intake passage through an oil separator provided in the cylinder head, the blowby gas discharge passage communicates the crankcase and the exhaust passage, and the internal pressure of the crankcase and the cylinder head are connected to each other. A valve operated by differential pressure, which closes a blow-by gas exhaust passage communicating between the crankcase and the exhaust passage when the differential pressure between the internal pressure of the crankcase and the internal pressure of the cylinder head is less than a predetermined value; A blowby gas recirculation control device for a diesel engine, comprising: a valve that opens a blowby gas exhaust passage that communicates the crankcase and the exhaust passage when the differential pressure is equal to or higher than the predetermined value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14682889U JPH0387808U (en) | 1989-12-20 | 1989-12-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14682889U JPH0387808U (en) | 1989-12-20 | 1989-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0387808U true JPH0387808U (en) | 1991-09-06 |
Family
ID=31693371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14682889U Pending JPH0387808U (en) | 1989-12-20 | 1989-12-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0387808U (en) |
-
1989
- 1989-12-20 JP JP14682889U patent/JPH0387808U/ja active Pending
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