JPS6025605B2 - Supercharged engine with intercooler - Google Patents
Supercharged engine with intercoolerInfo
- Publication number
- JPS6025605B2 JPS6025605B2 JP12607779A JP12607779A JPS6025605B2 JP S6025605 B2 JPS6025605 B2 JP S6025605B2 JP 12607779 A JP12607779 A JP 12607779A JP 12607779 A JP12607779 A JP 12607779A JP S6025605 B2 JPS6025605 B2 JP S6025605B2
- Authority
- JP
- Japan
- Prior art keywords
- intercooler
- cooling water
- air
- water circulation
- engine
- 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.)
- Expired
Links
Description
【発明の詳細な説明】
本発明はインタークーラー付過給機関に関し、特に、水
冷式インタークーラーを備えた過給機関に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a supercharged engine with an intercooler, and particularly to a supercharged engine equipped with a water-cooled intercooler.
インタークーラー付過給機関を定置用機関として使用す
る場合及び車鞠走行風を冷却空気として利用できない形
式の車輪にインタークーラー付過給機関を搭載する場合
等に於ては、インタークーラーを空冷式とするよりも水
冷式にする方が望ましい。When using a supercharged engine with an intercooler as a stationary engine, or when installing a supercharged engine with an intercooler on wheels of a type that cannot use the car running wind as cooling air, it is better to use an air-cooled intercooler. It is also preferable to use a water-cooled type.
また、水袷式インタークーラーは車輪走行風による冷却
効果を期待しなくてもよいので機関本体と週給機の近傍
に設置することができ、その結果、給気管路の長さを短
か〈することができるため管路損失を小さくできるとい
う利点も得られる。インタークーラーの冷却方式として
水冷式を採用する場合、インタークーラー用冷却水の循
環系統を設けるとともに該循環系統にはインタークーラ
ー用冷却水の循環ポンプを設ける必要がある。In addition, the water-belt type intercooler does not need to rely on the cooling effect of the wheel running wind, so it can be installed near the engine body and the weekly feeder, and as a result, the length of the air supply pipe can be shortened. This also provides the advantage of reducing pipe loss. When a water cooling type is adopted as a cooling method for the intercooler, it is necessary to provide a circulation system for cooling water for the intercooler and to provide a circulation pump for the cooling water for the intercooler.
従来、水冷式インタークーラー付の週給機関を計画する
場合、該循環ポンプは機関冷却水循環ポンプと同様に機
関から直結駆動されるように設計が行われてきたが、こ
のような従来設計によると、インタークーラー用冷却水
循環ポンプのための駆動損失が生ずるため機関の利用可
能出力が減少するという問題があった。従って、本発明
の目的は前記問題を解決し、利用可能出力の大きな、改
良されたインタークーラー付過給機関を供することであ
る。Conventionally, when planning a weekly engine with a water-cooled intercooler, the circulation pump was designed to be driven directly from the engine in the same way as the engine cooling water circulation pump. There was a problem in that the usable output of the engine was reduced due to drive loss for the cooling water circulation pump. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above problems and provide an improved supercharged engine with an intercooler that has a large usable output.
本発明は、タービン側にウェィストゲートを備えていな
い形式の排気ターボ過給機に於ては機関の高負荷時に週
給機吐出空気が過剰になることを注目し、該吐出空気の
一部を利用してインタークーラー用冷却水循環ポンプを
駆動することによって前記問題を解決したものである。The present invention focuses on the fact that in an exhaust turbo supercharger without a wastegate on the turbine side, the weekly charger discharge air becomes excessive when the engine is under high load, and a portion of the discharge air is The above problem is solved by utilizing the cooling water circulation pump for the intercooler.
以下に添附図面を参照して本発明の実施例について説明
する。図に於て１は内燃機関、２は内燃機関１の排気に
よって駆動される排気ターボ過給機である。Embodiments of the present invention will be described below with reference to the accompanying drawings. In the figure, 1 is an internal combustion engine, and 2 is an exhaust turbo supercharger driven by the exhaust gas of the internal combustion engine 1.
排気ターボ過給機２はタービン３とコンブレッサー４と
から成り、両者は同軸上に固定されている。タービン３
には排気管５によって内燃機関１の排気が供給され、タ
ービン３にエネルギーを与えた後の排ガスは排気管６を
通って大気中に放出される。コンブレッサー４には吸気
管７を通ってェアクリーナー等から新気が吸入され、コ
ンブレッサー４の吐出空気（すなわち給気）は給気管８
を通って水冷式インタークーラー９に導入されて冷却さ
れた後、給気管１０を通って内燃機関１に導入される。The exhaust turbo supercharger 2 consists of a turbine 3 and a compressor 4, both of which are coaxially fixed. turbine 3
The exhaust gas from the internal combustion engine 1 is supplied through an exhaust pipe 5, and the exhaust gas after giving energy to the turbine 3 is discharged into the atmosphere through an exhaust pipe 6. Fresh air is drawn into the compressor 4 from an air cleaner etc. through the intake pipe 7, and the discharge air (i.e. supply air) of the compressor 4 is passed through the intake pipe 8.
After being introduced into the water-cooled intercooler 9 and cooled, the air is introduced into the internal combustion engine 1 through the air supply pipe 10.
水袷式インタークーラー９への入口前に於て過剰吐出空
気を大気中へ放出するためのウェィストゲート１１が給
気管８から分岐しており、このウェィストゲートの通路
系内には空気タービン１２が設けられている。一方、水
冷式インタークーラー９には冷却水循環管路１３が接続
されており、この冷却水循環管略１３内には空気タービ
ン１２に機械的に連結された冷却水循環ポンプ１４が設
けられるとともに冷却水冷却器１５が設けられている。
前記の如き構成の過給機関に於て内燃機関１が低負荷、
低回転で運転されている時にはコンブレッサー４から吐
出される吐出空気の圧力は低く、従ってウェィストゲー
ト１１内の空気タービン１２は極めて低速で回転はする
がむしろ管路抵抗として働くためゥェイストゲート１１
から大気中に放出される吐出空気量は少く、コンブレッ
サー４の吐出空気の大部分は冷却水ィンタ−クーラー９
及び給気管１０を通って内燃機関１に吸入される。A wastegate 11 for discharging excess discharged air into the atmosphere is branched from the air supply pipe 8 before the inlet to the water belt type intercooler 9, and an air turbine 12 is installed in the passage system of this wastegate. is provided. On the other hand, a cooling water circulation pipe 13 is connected to the water-cooled intercooler 9, and a cooling water circulation pump 14 mechanically connected to the air turbine 12 is provided in the cooling water circulation pipe 13. 15 are provided.
In the supercharged engine configured as described above, the internal combustion engine 1 is under low load,
When operating at low rotation speed, the pressure of the discharged air discharged from the compressor 4 is low, and therefore the air turbine 12 in the wastegate 11 rotates at an extremely low speed, but rather acts as a pipe resistance, so the wastegate 11
The amount of air discharged into the atmosphere from the compressor 4 is small, and most of the air discharged from the compressor 4 is sent to the cooling water intercooler 9.
and is taken into the internal combustion engine 1 through the air supply pipe 10.
そして、この場合、空気タービン１２の回転が極めて低
いため、水冷式インタークーラー９内を流れる冷却水流
量は少く、水冷式インタークーラー９における冷却量は
小さい。内燃機関１が高負荷運転されると、排気ターボ
過給機２の回転速度は著しく増加し、その結果、給気管
８に吐出されるコンブレッサー吐出空気の圧力及び流量
も著しく上昇する。In this case, since the rotation of the air turbine 12 is extremely low, the flow rate of the cooling water flowing through the water-cooled intercooler 9 is small, and the amount of cooling in the water-cooled intercooler 9 is small. When the internal combustion engine 1 is operated under high load, the rotation speed of the exhaust turbo supercharger 2 increases significantly, and as a result, the pressure and flow rate of compressor discharge air discharged into the air supply pipe 8 also increase significantly.
このため、空気タービン１２の入口圧も著しく上昇して
空気タービン１２が高速で回転されるようになり、その
結果、冷却水循環ポンプ１４の回転速度も上昇し、水冷
式インタークーラー９内を流れる冷却水流量も急増して
水冷式インタークーラー９における冷却量も急増する。
それ故、内燃機関１の負荷の増加に応じて水冷式インタ
ークーラー９における給気冷却量が増大する。この場合
、給気管８から分岐するウェィストゲート１１の入口部
に、給気がェアタ−ビン側に分流するのを防止するため
、バルブ１７を設けても良い。前記の如き本発明の過給
機関ではインタークーラーの冷却水循環管路に設けた冷
却水循環ポンプを、過給機吐出空気により駆動される空
気タービンに機械的に連結したので、該冷却水循環ポン
プを内燃機関によって駆動する必要がなくなり、内燃機
関の有効出力を増加させることができる。Therefore, the inlet pressure of the air turbine 12 also increases significantly, causing the air turbine 12 to rotate at a high speed. As a result, the rotational speed of the cooling water circulation pump 14 also increases, and the cooling water flowing inside the water-cooled intercooler 9 increases. The flow rate also increases rapidly, and the amount of cooling in the water-cooled intercooler 9 also increases rapidly.
Therefore, as the load on the internal combustion engine 1 increases, the amount of air supply cooling in the water-cooled intercooler 9 increases. In this case, a valve 17 may be provided at the inlet of the waste gate 11 branching from the air supply pipe 8 in order to prevent the air supply from being diverted to the air turbine side. In the supercharged engine of the present invention as described above, the cooling water circulation pump provided in the cooling water circulation pipe of the intercooler is mechanically connected to the air turbine driven by the supercharger discharge air, so that the cooling water circulation pump is connected to the internal combustion engine. This eliminates the need to drive the internal combustion engine, increasing the effective output of the internal combustion engine.
添附図は本発明によるインタークーラー付過給機関の概
略図である。
１：内燃機関、２：排気ターボ過給機、３：タービン、
４：コンブレッサー、５：排気管、８，１０：給気管、
９：水冷式インタークーラー、１１：ウェイストゲート
、１２：空気タービン、１３：冷却水循環管路、１４：
冷却水循環ポンプ。The accompanying drawing is a schematic diagram of a supercharged engine with an intercooler according to the present invention. 1: Internal combustion engine, 2: Exhaust turbo supercharger, 3: Turbine,
4: Compressor, 5: Exhaust pipe, 8, 10: Air supply pipe,
9: Water-cooled intercooler, 11: Waste gate, 12: Air turbine, 13: Cooling water circulation pipe, 14:
Cooling water circulation pump.
Claims (1)
空気を冷却する水冷式インタークーラーと、前記水冷式
インタークーラーに冷却水を循環させるための冷却水循
環管路と、前記冷却水循環管路に設けられた冷却水冷却
器と、を有したインタークーラー付過給機関に於て、
前記排気ターボ過給機のコンプレツサー側に過剰吐出空
気を廃棄するためのウエイストゲートを設けるとともに
前記ウエイストゲートに前記過剰吐出空気によつて駆動
される空気タービンを設け、前記空気タービンによつて
駆動される冷却水循環ポンプを前記冷却水循環管路に設
けたことを特徴とする、インタークーラー付過給機関。1 An exhaust turbo supercharger, a water-cooled intercooler that cools the discharge air of the exhaust turbo supercharger, a cooling water circulation pipe for circulating cooling water to the water-cooled intercooler, and a cooling water circulation pipe provided in the cooling water circulation pipe. In a supercharged engine with an intercooler having a cooling water cooler,
A waste gate is provided on the compressor side of the exhaust turbo supercharger for disposing of excess discharge air, and an air turbine driven by the excess discharge air is provided in the waste gate, and the air turbine is driven by the air turbine. A supercharged engine with an intercooler, characterized in that a cooling water circulation pump is provided in the cooling water circulation pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12607779A JPS6025605B2 (en) | 1979-09-29 | 1979-09-29 | Supercharged engine with intercooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12607779A JPS6025605B2 (en) | 1979-09-29 | 1979-09-29 | Supercharged engine with intercooler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5650216A JPS5650216A (en) | 1981-05-07 |
| JPS6025605B2 true JPS6025605B2 (en) | 1985-06-19 |
Family
ID=14926036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12607779A Expired JPS6025605B2 (en) | 1979-09-29 | 1979-09-29 | Supercharged engine with intercooler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6025605B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5259196A (en) * | 1992-12-16 | 1993-11-09 | Northern Research & Engineering Corp. | Inlet air cooling system |
| US5353597A (en) * | 1992-12-16 | 1994-10-11 | Northern Research & Engineering Corporation | Inlet air cooling system |
| SE9801567D0 (en) * | 1998-05-04 | 1998-05-04 | Alfa Laval Ab | Methods and plant for the purification of gases from an internal combustion engine |
| US6158217A (en) * | 1998-12-23 | 2000-12-12 | The Research Foundation Of The State University Of New York | Low operating-temperature supercharged engines |
| CN103758658B (en) * | 2013-12-27 | 2015-06-24 | 天津大学 | Heat recovery system for gradient utilization of two-stage double-circuit internal-combustion engine waste heat |
-
1979
- 1979-09-29 JP JP12607779A patent/JPS6025605B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5650216A (en) | 1981-05-07 |
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