JPH02107713U - - Google Patents
Info
- Publication number
- JPH02107713U JPH02107713U JP1549789U JP1549789U JPH02107713U JP H02107713 U JPH02107713 U JP H02107713U JP 1549789 U JP1549789 U JP 1549789U JP 1549789 U JP1549789 U JP 1549789U JP H02107713 U JPH02107713 U JP H02107713U
- Authority
- JP
- Japan
- Prior art keywords
- passage
- exhaust
- recirculation
- control valve
- downstream
- 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
Links
- 238000004887 air purification Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Description
第１図及び第２図は本考案に係るエンジンのブ
ローバイガス還流装置の一例を、それが適用され
たデイーゼルエンジンと共に示す正面図及び側面
図、第３図は第１図及び第２図に示される通路切
換弁の動作説明に供される図、第４図は第１図及
び第２図に示される本考案に係るエンジンのブロ
ーバイガス還流装置の一例における動作説明に供
される特性図である。
図中、１０はエンジン本体、１７は燃焼室、１
８は吸気浄化エレメント、２０は吸気通路、２２
は共通通路部、２３は吸気分岐通路部、３０は排
気還流通路、３２は排気還流弁、３５はバキユー
ムポンプ、３６は三方電磁弁、４０はブローバイ
ガス導入通路、４２はアクチユエータ、４５は通
路切換弁、５０は連通路、６０はコントロールユ
ニツトである。
1 and 2 are a front view and a side view showing an example of the engine blow-by gas recirculation device according to the present invention, together with a diesel engine to which it is applied, and FIG. 3 is the same as shown in FIGS. FIG. 4 is a characteristic diagram used to explain the operation of an example of the engine blow-by gas recirculation device according to the present invention shown in FIGS. 1 and 2. . In the figure, 10 is the engine body, 17 is the combustion chamber, 1
8 is an intake air purification element, 20 is an intake passage, 22
23 is a common passage, 23 is an intake branch passage, 30 is an exhaust recirculation passage, 32 is an exhaust recirculation valve, 35 is a vacuum pump, 36 is a three-way solenoid valve, 40 is a blow-by gas introduction passage, 42 is an actuator, and 45 is a passage. The switching valve, 50 is a communication path, and 60 is a control unit.
Claims (1)
び上流側端部が上記共通通路部に接続され、下流
側端部がエンジン本体に設けられた複数のシリン
ダーに接続された複数の分岐通路部から成る吸気
通路、上記複数の分岐通路部の夫々に排気ガスを
導く排気還流通路、及び、該排気還流通路を開閉
する排気還流制御弁を有したエンジンに設けられ
、上記エンジン本体内で発生したブローバイガス
を上記共通通路部における上記吸気浄化エレメン
トより下流側部分に導くブローバイガス導入通路
と、 一端部が上記ブローバイガス導入通路に接続さ
れ、他端部が上記排気還流通路における上記排気
還流制御弁より下流側部分に接続された連通路と
、 上記排気還流制御弁により上記排気還流通路が
閉状態にされたとき、上記連通路を開状態にする
通路切換弁と、 を具備して構成されるエンジンのブローバイガ
ス還流装置。[Claims for Utility Model Registration] A common passage section in which the intake air purification element is disposed and an upstream end thereof are connected to the common passage section, and a downstream end thereof is connected to a plurality of cylinders provided in the engine body. an intake passage consisting of a plurality of branch passages, an exhaust gas recirculation passage that guides exhaust gas to each of the plurality of branch passages, and an exhaust recirculation control valve that opens and closes the exhaust recirculation passage; a blowby gas introduction passage that guides blowby gas generated within the engine body to a portion downstream of the intake air purification element in the common passage section; one end connected to the blowby gas introduction passage and the other end connected to the exhaust gas recirculation passage; a communication passage connected to a downstream portion of the exhaust recirculation control valve; a passage switching valve that opens the communication passage when the exhaust recirculation passage is closed by the exhaust recirculation control valve; An engine blow-by gas recirculation device comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989015497U JPH078805Y2 (en) | 1989-02-13 | 1989-02-13 | Blow-by gas recirculation system for engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989015497U JPH078805Y2 (en) | 1989-02-13 | 1989-02-13 | Blow-by gas recirculation system for engines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02107713U true JPH02107713U (en) | 1990-08-28 |
| JPH078805Y2 JPH078805Y2 (en) | 1995-03-06 |
Family
ID=31227603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989015497U Expired - Lifetime JPH078805Y2 (en) | 1989-02-13 | 1989-02-13 | Blow-by gas recirculation system for engines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH078805Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006144640A (en) * | 2004-11-18 | 2006-06-08 | Yanmar Co Ltd | Intake returning mechanism for engine |
-
1989
- 1989-02-13 JP JP1989015497U patent/JPH078805Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006144640A (en) * | 2004-11-18 | 2006-06-08 | Yanmar Co Ltd | Intake returning mechanism for engine |
| JP4521252B2 (en) * | 2004-11-18 | 2010-08-11 | ヤンマー株式会社 | Engine intake reduction mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH078805Y2 (en) | 1995-03-06 |
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