JPH05214935A - Cooling device for internal combustion engine with turbo-charger - Google Patents
Cooling device for internal combustion engine with turbo-chargerInfo
- Publication number
- JPH05214935A JPH05214935A JP4220892A JP4220892A JPH05214935A JP H05214935 A JPH05214935 A JP H05214935A JP 4220892 A JP4220892 A JP 4220892A JP 4220892 A JP4220892 A JP 4220892A JP H05214935 A JPH05214935 A JP H05214935A
- Authority
- JP
- Japan
- Prior art keywords
- internal combustion
- combustion engine
- cooling water
- turbocharger
- cooling
- 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
Landscapes
- Supercharger (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ミッドシップ型の自動
車等に用いられるターボチャージャ付内燃機関の冷却装
置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling device for an internal combustion engine with a turbocharger which is used in a midship type automobile or the like.
【０００２】[0002]
【従来の技術】従来、ターボチャージャ付内燃機関の冷
却装置の一例として図３に示すものがある。図におい
て、内燃機関１はターボチャージャ２を備えたタイプの
ものであり、この内燃機関１とラジエタ３との間には、
内燃機関冷却水循環回路４が形成されている。内燃機関
冷却水循環回路４は、ラジエタ３の冷却水出口部3aと内
燃機関１の冷却水入口部1aとを連通する第１の主配管５
と、内燃機関１の冷却水出口部1bとラジエタ３の冷却水
入口部3bとを連通する第２の主配管６とからなり、ラジ
エタ３から内燃機関１に送られた冷却水が内燃機関１を
冷却した後ラジエタ３に戻されるようになっている。こ
の場合、第１の主配管５の前記内燃機関１の冷却水出口
部1b近傍は上方向に向けて突出した屈曲部７を成してい
る。2. Description of the Related Art Conventionally, an example of a cooling device for an internal combustion engine with a turbocharger is shown in FIG. In the figure, an internal combustion engine 1 is of a type including a turbocharger 2, and between the internal combustion engine 1 and a radiator 3,
An internal combustion engine cooling water circulation circuit 4 is formed. The internal combustion engine cooling water circulation circuit 4 includes a first main pipe 5 that connects the cooling water outlet 3a of the radiator 3 and the cooling water inlet 1a of the internal combustion engine 1.
And a second main pipe 6 that connects the cooling water outlet portion 1b of the internal combustion engine 1 and the cooling water inlet portion 3b of the radiator 3 with each other. The cooling water sent from the radiator 3 to the internal combustion engine 1 is After being cooled, it is returned to the radiator 3. In this case, the vicinity of the cooling water outlet portion 1b of the internal combustion engine 1 of the first main pipe 5 forms a bent portion 7 protruding upward.
【０００３】屈曲部７と内燃機関１の冷却水出口部1bと
の間にはターボチャージャ冷却水循環回路８が形成され
ている。ターボチャージャ冷却水循環回路８は、屈曲部
７とターボチャージャ２の冷却水出口部2aとを連通する
ターボチャージャ出口側配管９と、内燃機関１の冷却水
出口部1bとターボチャージャ２の冷却水入口部2bとを連
通するターボチャージャ入口側配管10とからなり、内燃
機関１の冷却水出口部1bから冷却水がターボチャージャ
２に送られてターボチャージャ２を冷却し、その冷却水
を屈曲部７を介して内燃機関冷却水循環回路４に戻すよ
うにしている。A turbocharger cooling water circulation circuit 8 is formed between the bent portion 7 and the cooling water outlet portion 1b of the internal combustion engine 1. The turbocharger cooling water circulation circuit 8 includes a turbocharger outlet side pipe 9 that connects the bent portion 7 and the cooling water outlet portion 2a of the turbocharger 2, a cooling water outlet portion 1b of the internal combustion engine 1, and a cooling water inlet of the turbocharger 2. It is composed of a turbocharger inlet side pipe 10 communicating with the portion 2b, and cooling water is sent from the cooling water outlet portion 1b of the internal combustion engine 1 to the turbocharger 2 to cool the turbocharger 2 and the cooling water is bent to the bending portion 7 It returns to the internal combustion engine cooling water circulation circuit 4 via.
【０００４】内燃機関１の冷却水出口部1bの最上部には
排出管11の一端部が接続されており、この排出管11の他
端部にはリザーバタンク12が設けられている。内燃機関
１の冷却水出口部1bの最上部と排出管11との接続部分に
は安全弁13が介装されていて、安全弁13の作動により適
宜余剰の冷却水等をリザーバタンク12に排出し得るよう
になっている。One end of a discharge pipe 11 is connected to the uppermost part of the cooling water outlet 1b of the internal combustion engine 1, and a reservoir tank 12 is provided at the other end of the discharge pipe 11. A safety valve 13 is provided at a connecting portion between the uppermost portion of the cooling water outlet 1b of the internal combustion engine 1 and the discharge pipe 11, and an excessive amount of cooling water or the like can be appropriately discharged to the reservoir tank 12 by operating the safety valve 13. It is like this.
【０００５】なお、図３の冷却装置は内燃機関１とラジ
エタ３との間が長く、これに伴って第１、第２の主配管
５，６も長いものになっているが、このようなタイプの
内燃機関１の他の例として実開昭47-6238 号公報に示す
ものがある。In the cooling device of FIG. 3, the distance between the internal combustion engine 1 and the radiator 3 is long, and the first and second main pipes 5 and 6 are also long accordingly. Another example of the internal combustion engine 1 of the type is shown in Japanese Utility Model Publication No. 47-6238.
【０００６】[0006]
【発明が解決しようとする課題】ところで、図３に示す
ターボチャージャ付内燃機関の冷却装置では、ターボチ
ャージャ２の冷却部で、蒸気を発生しやすい。そして、
ターボチャージャ２の冷却水出口部2aと内燃機関１の冷
却水出口部1b（内燃機関１の最上部）との間に介装され
る冷却水配管は上下にうねるように屈曲しており、前述
したように蒸気が発生すると、この蒸気がうねり部（前
記屈曲部７はこのうねり部の一部を成す。）に溜まって
冷却水を押し、ついには安全弁13を介してリザーバタン
ク12に押し出してしまう。このような冷却水の押し出し
は蒸気が安全弁13に達するまで行なわれるので、場合に
よってはリザーバタンク12のオーバーフローまで招きか
ねなかった。By the way, in the cooling device for an internal combustion engine with a turbocharger shown in FIG. 3, steam is easily generated in the cooling portion of the turbocharger 2. And
The cooling water pipe interposed between the cooling water outlet portion 2a of the turbocharger 2 and the cooling water outlet portion 1b of the internal combustion engine 1 (the uppermost portion of the internal combustion engine 1) is bent so as to swell up and down. When the steam is generated as described above, the steam is accumulated in the undulation portion (the bent portion 7 forms a part of the undulation portion), presses the cooling water, and finally is pushed out to the reservoir tank 12 via the safety valve 13. I will end up. Since such cooling water is pushed out until the steam reaches the safety valve 13, it may lead to overflow of the reservoir tank 12 in some cases.
【０００７】また、回路内に、上述したようにうねり部
があって蒸気溜りができることにより、冷却水の循環が
抑制されてターボチャージャ２や内燃機関１がオーバヒ
ートしてしまう虞があった。さらには、オイル炭化を招
き、カーボンブリッジ等の問題さえ起こすことさえあっ
た。Further, as described above, since the undulation portion is formed in the circuit and vapor can be accumulated, the circulation of the cooling water may be suppressed and the turbocharger 2 and the internal combustion engine 1 may be overheated. Further, it may cause oil carbonization and even cause problems such as carbon bridges.
【０００８】本発明は上記事情に鑑みてなされたもの
で、ターボチャージャの冷却部で発生した蒸気を適正に
排出してリザーバタンクの冷却水のオーバーフローを防
止できるターボチャージャ付内燃機関の冷却装置を提供
することを目的とする。The present invention has been made in view of the above circumstances, and provides a cooling device for an internal combustion engine with a turbocharger, which can appropriately discharge steam generated in a cooling portion of a turbocharger and prevent overflow of cooling water in a reservoir tank. The purpose is to provide.
【０００９】[0009]
【課題を解決するための手段】本発明は、上記目的を達
成するために、内燃機関とラジエタとの間に内燃機関冷
却水循環回路を形成し、内燃機関冷却水循環回路の内燃
機関入口部を出口とするターボチャージャ冷却水循環回
路を前記内燃機関冷却水循環回路に接続して設けたター
ボチャージャ付内燃機関の冷却装置において、前記内燃
機関冷却水循環回路の内燃機関入口部に気体抜き用弁機
構を設けたことを特徴とする。In order to achieve the above object, the present invention forms an internal combustion engine cooling water circulation circuit between an internal combustion engine and a radiator, and outputs the internal combustion engine inlet portion of the internal combustion engine cooling water circulation circuit as an outlet. In a cooling device for an internal combustion engine with a turbocharger, which is provided by connecting a turbocharger cooling water circulation circuit to the internal combustion engine cooling water circulation circuit, a gas vent valve mechanism is provided at an internal combustion engine inlet of the internal combustion engine cooling water circulation circuit. It is characterized by
【００１０】[0010]
【作用】このような構成とすれば、ターボチャージャの
冷却部で蒸気が発生すると、この蒸気はターボチャージ
ャ冷却水循環回路の出口に至り、気体抜き用弁機構の作
動により外部に排出される。With this structure, when steam is generated in the cooling portion of the turbocharger, the steam reaches the outlet of the turbocharger cooling water circulation circuit and is discharged to the outside by the operation of the gas vent valve mechanism.
【００１１】[0011]
【実施例】以下、本発明の一実施例のターボチャージャ
付内燃機関の冷却装置を図１及び図２に基づいて説明す
る。本実施例は、図３に示すターボチャージャ付内燃機
関の冷却装置に比して、図３の安全弁13を省略し、かつ
屈曲部７の最上部に気体抜き用弁機構としての安全弁14
を設けたことが異なっている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A cooling device for an internal combustion engine with a turbocharger according to an embodiment of the present invention will be described below with reference to FIGS. In this embodiment, as compared with the cooling device for an internal combustion engine with a turbocharger shown in FIG. 3, the safety valve 13 in FIG. 3 is omitted, and a safety valve 14 as a gas venting valve mechanism is provided at the top of the bent portion 7.
Is different.
【００１２】このターボチャージャ付内燃機関の冷却装
置では、ターボチャージャ２の冷却により蒸気が発生す
ると、この蒸気はターボチャージャ出口側配管９を通っ
て屈曲部７に至り、安全弁14の作動によりリザーバタン
ク12に排出される。そして、屈曲部７と内燃機関１の冷
却水出口部1b（内燃機関１の最上部）との間に存在する
うねり部に蒸気が溜まるようなことが避けられる。この
ため、図３で示す装置で発生する、蒸気による冷却水の
リザーバタンク12への押し出しやリザーバタンク12のオ
ーバフロー等の問題を招くことがなくなる。また、屈曲
部７の下流側のうねり部に蒸気が溜ることがないので、
冷却水は適正に循環することとなってターボチャージャ
２や内燃機関１のオーバヒートを招くことがないし、オ
イル炭化を防止できることによりカーボンブリッジ等の
問題を惹起することがない。In this cooling device for an internal combustion engine with a turbocharger, when steam is generated by cooling the turbocharger 2, the steam passes through the turbocharger outlet side pipe 9 to reach the bent portion 7, and the safety valve 14 operates to cause a reservoir tank. Emitted to 12. Then, it is possible to avoid vapor from being accumulated in the undulation portion existing between the bent portion 7 and the cooling water outlet portion 1b of the internal combustion engine 1 (the uppermost portion of the internal combustion engine 1). Therefore, problems such as the pushing of cooling water into the reservoir tank 12 and the overflow of the reservoir tank 12 which occur in the device shown in FIG. 3 are not caused. Moreover, since steam does not accumulate in the swell portion on the downstream side of the bent portion 7,
Since the cooling water circulates properly, the turbocharger 2 and the internal combustion engine 1 are not overheated, and since the carbonization of oil can be prevented, problems such as carbon bridge are not caused.
【００１３】[0013]
【発明の効果】本発明は、ターボチャージャの冷却部で
発生した蒸気はターボチャージャ冷却水循環回路の出口
に至り、気体抜き用弁機構の作動により外部に排出され
るので、内燃機関入口部と内燃機関の出口部との間に蒸
気が滞留することを抑えることとなり、蒸気による冷却
水の押し出しを防止してリザーバタンクのオーバフロー
等の問題を招くことがなくなる。According to the present invention, the steam generated in the cooling portion of the turbocharger reaches the outlet of the turbocharger cooling water circulation circuit and is discharged to the outside by the operation of the degassing valve mechanism. It is possible to prevent steam from staying between the outlet of the engine and the cooling water to be prevented from being pushed out by the steam, thereby avoiding problems such as overflow of the reservoir tank.
【図１】本発明の一実施例のターボチャージャ付内燃機
関の冷却装置を模式的に示す配管系統図である。FIG. 1 is a piping system diagram schematically showing a cooling device for an internal combustion engine with a turbocharger according to an embodiment of the present invention.
【図２】ターボチャージャ付内燃機関の冷却装置の屈曲
部を示す部分断面図である。FIG. 2 is a partial cross-sectional view showing a bent portion of a cooling device for an internal combustion engine with a turbocharger.
【図３】従来例を模式的に示す配管系統図である。FIG. 3 is a piping system diagram schematically showing a conventional example.
１ 内燃機関 1a 内燃機関の冷却水入口部 ２ ターボチャージャ 2a ターボチャージャの冷却水出口部 ３ ラジエタ ４ 内燃機関冷却水循環回路 ７ 屈曲部 ８ ターボチャージャ冷却水循環回路 14 安全弁 1 Internal Combustion Engine 1a Cooling Water Inlet for Internal Combustion Engine 2 Turbocharger 2a Cooling Water Outlet for Turbocharger 3 Radiator 4 Internal Combustion Engine Cooling Water Circulation Circuit 7 Bend 8 Turbocharger Cooling Water Circulation Circuit 14 Safety Valve
Claims (1)
却水循環回路を形成し、該内燃機関冷却水循環回路の内
燃機関入口部を出口とするターボチャージャ冷却水循環
回路を前記内燃機関冷却水循環回路に接続して設けたタ
ーボチャージャ付内燃機関の冷却装置において、前記内
燃機関冷却水循環回路の内燃機関入口部に気体抜き用弁
機構を設けたことを特徴とするターボチャージャ付内燃
機関の冷却装置。1. A turbocharger cooling water circulation circuit having an internal combustion engine cooling water circulation circuit formed between an internal combustion engine and a radiator and having an internal combustion engine inlet portion of the internal combustion engine cooling water circulation circuit as an outlet in the internal combustion engine cooling water circulation circuit. A cooling device for an internal combustion engine with a turbocharger, wherein the cooling device for an internal combustion engine with a turbocharger is provided with a valve mechanism for venting gas at an internal combustion engine inlet of the internal combustion engine cooling water circulation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04220892A JP3407307B2 (en) | 1992-01-31 | 1992-01-31 | Cooling system for internal combustion engine with turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04220892A JP3407307B2 (en) | 1992-01-31 | 1992-01-31 | Cooling system for internal combustion engine with turbocharger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05214935A true JPH05214935A (en) | 1993-08-24 |
| JP3407307B2 JP3407307B2 (en) | 2003-05-19 |
Family
ID=12629604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04220892A Expired - Fee Related JP3407307B2 (en) | 1992-01-31 | 1992-01-31 | Cooling system for internal combustion engine with turbocharger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3407307B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014005738A (en) * | 2012-06-21 | 2014-01-16 | Hitachi Constr Mach Co Ltd | Reductant supply device |
-
1992
- 1992-01-31 JP JP04220892A patent/JP3407307B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014005738A (en) * | 2012-06-21 | 2014-01-16 | Hitachi Constr Mach Co Ltd | Reductant supply device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3407307B2 (en) | 2003-05-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7216609B2 (en) | Motor vehicle cooling system | |
| US20040050374A1 (en) | Exhaust-gas recirculation system of an internal combustion engine | |
| JPH05214935A (en) | Cooling device for internal combustion engine with turbo-charger | |
| JPH11200956A (en) | Exhaust gas recirculation device | |
| JPH08291773A (en) | Exhaust gas recirculation device for engine | |
| JP2017075555A (en) | Condensed water discharge device for internal combustion engine | |
| JP2006169984A (en) | Exhaust system | |
| JPS58118217U (en) | Automotive internal combustion engine cooling system | |
| JP2591278Y2 (en) | Marine engine | |
| CN219587668U (en) | Engine with overhead EGR cooling system | |
| CN217518737U (en) | Engine cooling system, engine and vehicle | |
| JP2581278Y2 (en) | Internal combustion engine cooling system | |
| KR19990036709A (en) | Cooling structure of EV valve | |
| KR19980034829U (en) | Car Intercooler | |
| JPS6347751Y2 (en) | ||
| JPH034751Y2 (en) | ||
| JPS645047Y2 (en) | ||
| EP0122557A2 (en) | Improved arrangement of boiling liquid cooling system of internal combustion engine | |
| JP2017075554A (en) | Condensed water discharge device for internal combustion engine | |
| JPH0540292Y2 (en) | ||
| JPS6123613Y2 (en) | ||
| JPS58222966A (en) | Fuel oil feeder for internal-combustion engine | |
| JPH0610160Y2 (en) | Engine cooling system | |
| SU1386725A1 (en) | Cooling system for internal combustion engine | |
| KR960007885Y1 (en) | Recycling apparatus for exhaust gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313532 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100314 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110314 Year of fee payment: 8 |
|
| LAPS | Cancellation because of no payment of annual fees |