JPS6088821A - Suction air cooling device for supercharged engine - Google Patents
Suction air cooling device for supercharged engineInfo
- Publication number
- JPS6088821A JPS6088821A JP58198145A JP19814583A JPS6088821A JP S6088821 A JPS6088821 A JP S6088821A JP 58198145 A JP58198145 A JP 58198145A JP 19814583 A JP19814583 A JP 19814583A JP S6088821 A JPS6088821 A JP S6088821A
- Authority
- JP
- Japan
- Prior art keywords
- primary
- passage
- cooler
- throttle valve
- intake
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
- F02B29/0412—Multiple heat exchangers arranged in parallel or in series
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は吸気通路に一次絞り弁と二次絞り弁とを有する
過給機付エンジンの吸気冷却装置に関するも゛のである
。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an intake air cooling device for a supercharged engine having a primary throttle valve and a secondary throttle valve in an intake passage.
（従来技術）
従来から、負荷に応じた吸気調整のためエンジンの全運
転域で作動する一次絞り弁を有する一次側通路と中・高
負荷域で作動する二次絞り弁を有する二次側通路とを吸
気通路に設け、また出方向上のため過給機を吸気通路に
装備したエンジンは一般に知られている。また過給機を
装置ａ′ｇ′る場合に、過給による吸気圧ノコの上昇、
およびターボ過給機にあってはタービンからブロアに伝
わる排気熱により、本来的に吸気温度が上昇し易いので
、吸気温度の上昇による充填効率の低下やノッキングを
防止するため、過給機の下流に冷却器を配備して吸気を
冷却づることも従来から知られている。(Prior art) Conventionally, the primary side passage has a primary throttle valve that operates in the entire operating range of the engine to adjust the intake air according to the load, and the secondary side passage has a secondary throttle valve that operates in medium and high load ranges. Engines are generally known in which a supercharger is installed in the intake passage and a supercharger is installed in the intake passage because it is located on the exit direction. Also, when installing a turbocharger in a device a'g', the increase in the intake pressure saw due to supercharging,
In a turbocharger, the intake air temperature naturally tends to rise due to the exhaust heat transferred from the turbine to the blower. It has also been known to provide a cooler to cool the intake air.
さらに冷却器を配備する場合に、過給圧が比較的低くて
吸気温度があまり高くならない低負荷時に吸気が冷却さ
れすぎると、燃料の霧化が悪くなるため、実開昭５５−
１４４８１６号公報に示されるように、前記二次側通路
にのみ冷却器を設けることによって低負荷時の過冷却を
防止するようにした装置が提案されている。ただしこの
装置では、常に前記−次側通路を流れる吸気は冷Ｎ１さ
れず、−次側と二次側の両通路から燃焼室に吸気が供給
される中・高負荷時にも、二次側通路を通る吸気だけが
冷却されるようになっていた。Furthermore, if a cooler is installed, if the intake air is cooled too much at low loads when the boost pressure is relatively low and the intake air temperature does not rise very high, fuel atomization will deteriorate.
As shown in Japanese Patent No. 144816, a device has been proposed in which a cooler is provided only in the secondary passage to prevent overcooling at low loads. However, with this device, the intake air that always flows through the above-mentioned upstream side passage is not cooled, and even during medium/high loads when intake air is supplied to the combustion chamber from both the upstream side and secondary side passages, the upstream side passage Only the intake air passing through was cooled.
（発明の目的）
本発明はこれらの事情に鑑み、吸気通路に一次絞り弁と
二次絞り弁とを有する過給機付エンジンにおいて、−次
絞り弁のみが作動される低負荷域での過冷却を防止する
とともに、−次絞り弁と二次絞り弁の双方が作動される
中・高負荷域での冷却効果を向上することのできる吸気
冷却装置を捉供乃−るものである。(Object of the Invention) In view of these circumstances, the present invention has been developed to solve the problem of supercharged engines having a primary throttle valve and a secondary throttle valve in the intake passage in a low load range where only the secondary throttle valve is operated. The present invention provides an intake air cooling device that can prevent cooling and improve the cooling effect in medium and high load ranges where both the secondary throttle valve and the secondary throttle valve are operated.
（発明の構成）
本発明は、吸気通路に一次絞り弁を有する一次側通路と
二次絞り弁を有する二次側通路を設けるとともに、これ
らより上流の吸気通路に過給機を配置した過給機付エン
ジンにおいて、上記両絞り弁より上流で過給機より下流
の吸気通路に冷却器を設け、この冷却器は、上記−次側
通路に連通するー°次側冷却部と上記二次側通路に連通
ずる二次側冷却部とを仕切壁により仕切ってなるもので
ある。つまり、上記二次絞り弁が閉じているときは冷却
器の一次側冷却部のみで吸気が冷却され、上記両絞り弁
が開いているときは冷却器全体で吸気が冷却されるよう
にしたものである。(Structure of the Invention) The present invention provides a supercharging system in which an intake passage is provided with a primary passage having a primary throttle valve and a secondary passage having a secondary throttle valve, and a supercharger is disposed in the intake passage upstream of these passages. In the equipped engine, a cooler is provided in the intake passage upstream of both the throttle valves and downstream of the supercharger, and this cooler communicates with the downstream passage and the downstream side cooling section and the secondary side. A secondary side cooling section communicating with the passage is separated by a partition wall. In other words, when the secondary throttle valve is closed, the intake air is cooled only by the primary cooling section of the cooler, and when both throttle valves are open, the intake air is cooled by the entire cooler. It is.
（実施例）
図において、１はエンジン本体、２はエンジン本体１の
各シリンダ、３は吸気通路、４は排気通路である。上記
吸気通路３には、エンジンの全運転域で作動する一次絞
り弁５を備えた一次側通路６と、中・高負荷域でのみ作
動する二次絞り弁７を備えた二次側通路８とが設【プら
れている。この両道路６．８は、上流端側がエアクリー
ナ９に接続された集合通路部１０から互いに分岐し、各
シリンダ２の燃焼室に間口する一次側および二次側の各
吸気ボート１１．１２に連通しており、この両道路６，
８の絞り弁５，７より下流にはそれぞれ燃料噴射弁１３
．１４が配設されている。また、１５は過給機であって
、図ではターボ過給機が用いられており、排気通路４に
設けられたタービン１６によって吸気通路３の集合通路
部１０に設けられたブロア１７が駆動されるようになっ
ている。(Example) In the figure, 1 is an engine body, 2 is each cylinder of the engine body 1, 3 is an intake passage, and 4 is an exhaust passage. The intake passage 3 includes a primary passage 6 equipped with a primary throttle valve 5 that operates in all operating ranges of the engine, and a secondary passage 8 equipped with a secondary throttle valve 7 that operates only in medium and high load ranges. is set up. Both roads 6.8 branch from a collective passage section 10 whose upstream end side is connected to the air cleaner 9, and communicate with each intake boat 11.12 on the primary side and secondary side that opens into the combustion chamber of each cylinder 2. Both roads 6,
8, fuel injection valves 13 are located downstream of the throttle valves 5 and 7, respectively.
．． 14 are arranged. Further, 15 is a supercharger, and in the figure, a turbo supercharger is used, and a blower 17 provided in the collective passage section 10 of the intake passage 3 is driven by a turbine 16 provided in the exhaust passage 4. It has become so.
１８は燃料噴射弁１３’、１４からの燃料噴射量を吸入
空気量に応じて制御するようにするため吸気通路３に設
けられたエア７０−メータ、１９は各シリンダ２の燃焼
室に開口する排気ボートである。18 is an air meter provided in the intake passage 3 in order to control the amount of fuel injected from the fuel injection valves 13' and 14 according to the amount of intake air; 19 is an air meter that opens into the combustion chamber of each cylinder 2; It is an exhaust boat.
なお、吸、排気、ボート１１．１２．１９には吸。In addition, intake, exhaust, and boat 11.12.19 have intake.
排気弁（図示せず）が装備されている。Equipped with an exhaust valve (not shown).
上記両絞り弁５，７より上流で過給′ａ１５より下流の
吸気通路３には、過給別１５から送られる吸気を冷却す
るための冷却器２０が設けられている。この冷却器２０
は、例えばその内部に多数の流路２１からなる熱交換部
を備えていて、この熱交換部を吸気が流通する間に外部
の空気等で冷却されるようにしている。この冷却器２０
における熱交換部およびその下流側は、仕切壁２２によ
って一次側冷却部２３と二次側冷却部２４とに仕切られ
、−次側冷却部２３の下流端は一次側通路６に接続され
、二次側冷却部２４の下流端は二次側通路゛８に接続さ
れている。この冷却部２３．２４は熱交換部の上流にお
いて集合し、前記集合通路部１０に接続されている。こ
の冷却器２０は空冷式でも水冷式でもにいが、空冷式の
方が構造が簡単になる。A cooler 20 for cooling the intake air sent from the supercharger 15 is provided in the intake passage 3 upstream of the throttle valves 5 and 7 and downstream of the supercharger 15. This cooler 20
For example, the heat exchanger is provided with a heat exchange section consisting of a large number of flow channels 21 inside, and is cooled by external air or the like while the intake air flows through this heat exchange section. This cooler 20
The heat exchange section and its downstream side are partitioned into a primary cooling section 23 and a secondary cooling section 24 by a partition wall 22, and the downstream end of the secondary cooling section 23 is connected to the primary passage 6, The downstream end of the downstream side cooling section 24 is connected to the secondary side passageway '8. The cooling sections 23 and 24 are collected upstream of the heat exchange section and connected to the collection passage section 10. This cooler 20 can be air-cooled or water-cooled, but the air-cooled type has a simpler structure.
この吸気冷却装置においては、前記二次絞り弁７が閉じ
られているとき、前記冷却器２０に導入される吸気は、
その−次側冷却部２３のみを通過し、−次絞り弁５を経
てシリンダ２の各燃焼室に送られる。これによって冷却
作用は適度に抑制される。つまり、二次絞り弁７が閉じ
られている低負荷域では過給圧も少なくて高過給時はど
には吸気湿度が上昇しない。この場合に、冷却器２０の
うちの一次側冷却部２３のみにより吸気が冷却されるた
め、冷却器２０全体で吸気が冷却される場合と比べて冷
却作用が抑制され、過冷却が生じない程度の適度の冷却
作用が得られる。In this intake air cooling device, when the secondary throttle valve 7 is closed, the intake air introduced into the cooler 20 is
It passes only through the downstream side cooling section 23 and is sent to each combustion chamber of the cylinder 2 via the downstream throttle valve 5. This moderately suppresses the cooling effect. That is, in a low load range where the secondary throttle valve 7 is closed, the supercharging pressure is low, and the intake air humidity does not rise as much during high supercharging. In this case, since the intake air is cooled only by the primary side cooling section 23 of the cooler 20, the cooling effect is suppressed compared to the case where the intake air is cooled by the entire cooler 20, and to the extent that supercooling does not occur. A moderate cooling effect can be obtained.
一方、前記二次絞り弁７が聞かれたときは、吸気が冷却
器２０の一次側と二次側の両冷却部２３゜２４をそれぞ
れ通過し、−次および二次の各絞り弁５，７を経てシリ
ンダ２の燃焼室に送られる。On the other hand, when the secondary throttle valve 7 is turned on, the intake air passes through both the primary and secondary cooling parts 23 and 24 of the cooler 20, respectively, and the secondary and secondary throttle valves 5, 7 and is sent to the combustion chamber of cylinder 2.
従って吸気渇疫が上昇する高過給時には、冷却器２０全
体が働き、−次側と二次側の各通路６．８に送られる吸
気がそれぞれ効率よく冷却され、冷却効果が高められる
こととなる。Therefore, during high supercharging when intake air thirst increases, the entire cooler 20 works to efficiently cool the intake air sent to each passage 6.8 on the negative side and the secondary side, thereby increasing the cooling effect. Become.
なお、上記実施例では一次側通路６と二次側通路８とを
別個の吸気ボート１１．１２に連通させているが、この
両通路６．８を絞り弁５，７より下流で合流させて共通
の吸気ボートに連通させてもよい。In the above embodiment, the primary side passage 6 and the secondary side passage 8 are communicated with a separate intake boat 11.12, but these two passages 6.8 are made to join downstream of the throttle valves 5 and 7. It may also be connected to a common intake boat.
（発明の効果）
以上のように本発明は、−次および二次の各絞り弁より
上流で過給機より下流の吸気通路に設けた冷却器を、−
次側通路に連通ずる一次側冷却部と二次側通路に連通づ
る二次側冷却部とに仕切っているため、二次絞り弁が閉
じている低負荷域では冷却作用を抑制して過冷却を防止
し、両絞り弁が開かれる高負荷時には冷却効率を高める
ことができる。しかも上記両冷却部が一体構造となって
いるので、簡単なｍ造によりながら、低負荷時と高角゛
荷時とに応じた適切な冷却効果を持たせることができる
ものである。(Effects of the Invention) As described above, the present invention provides a cooler installed in the intake passage upstream of the -secondary and secondary throttle valves and downstream of the supercharger.
It is divided into a primary side cooling section that communicates with the next side passage and a secondary side cooling section that communicates with the secondary side passage, so in the low load range when the secondary throttle valve is closed, the cooling effect is suppressed and supercooling is achieved. It is possible to prevent this and increase cooling efficiency during high loads when both throttle valves are open. Moreover, since both of the cooling parts are of an integrated structure, it is possible to provide an appropriate cooling effect in accordance with low load and high angle load with a simple construction.
図は本発明の実施例を示す概略図である。
３・・・吸気通路、５・・・−次絞り弁、６・・・−次
側通路、７・・・二次絞り弁、８・・・二次側通路、２
０・・・冷却器、２２・・・仕切壁、２３・・・−次側
冷却部、２４・・・−次側冷却部。The figure is a schematic diagram showing an embodiment of the invention. 3...Intake passage, 5...-Secondary throttle valve, 6...-Next side passage, 7...Secondary throttle valve, 8...Secondary side passage, 2
0...Cooler, 22...Partition wall, 23...-Next side cooling section, 24...-Next side cooling section.
Claims (1)
り弁を有する二次側通路を設けるとともに、これらより
上流の吸気通路に過給機を配置した過給機付エンジンに
おいて、上記両絞り弁より上流で過給機より下流の吸気
通路に冷却器を設け、この冷却器は、上記−次側通路に
連通ずる一次側冷却部と上記二次側通路に連通ずる二次
側冷却部とを仕切壁により仕切ってなることを特徴とす
る過給機付エンジンの吸気冷却装置。1. In a supercharged engine in which the intake passage has a primary passage with a primary throttle valve and a secondary passage with a secondary throttle valve, and a supercharger is disposed in the intake passage upstream of these, both of the above A cooler is provided in the intake passage upstream of the throttle valve and downstream of the supercharger, and this cooler includes a primary side cooling section that communicates with the above-mentioned downstream side passage and a secondary side cooling section that communicates with the above-mentioned secondary side passage. An intake air cooling device for a supercharged engine, characterized in that it is separated by a partition wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58198145A JPS6088821A (en) | 1983-10-21 | 1983-10-21 | Suction air cooling device for supercharged engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58198145A JPS6088821A (en) | 1983-10-21 | 1983-10-21 | Suction air cooling device for supercharged engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6088821A true JPS6088821A (en) | 1985-05-18 |
| JPH0213132B2 JPH0213132B2 (en) | 1990-04-03 |
Family
ID=16386205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58198145A Granted JPS6088821A (en) | 1983-10-21 | 1983-10-21 | Suction air cooling device for supercharged engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6088821A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5152144A (en) * | 1990-09-19 | 1992-10-06 | Cummins Engine Company, Inc. | Air to air heat exchanger internal bypass |
| WO2006045986A2 (en) * | 2004-10-28 | 2006-05-04 | Renault S.A.S | Motor comprising an air admission circuit for optimising the volumetric efficiency |
| US8640456B2 (en) * | 2011-11-30 | 2014-02-04 | Cummins Intellectual Property, Inc. | Charge air cooler assembly |
| DE102014202971A1 (en) * | 2014-02-18 | 2015-08-20 | Röchling Automotive SE & Co. KG | Intake manifold with integrated intercooler with two circuits |
| DE102014006838A1 (en) * | 2014-05-13 | 2015-11-19 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Inlet collector with integrated intercooler and shut-off device |
| DE102016226216B4 (en) | 2016-01-04 | 2020-06-18 | Gm Global Technology Operations, Llc | INTERNAL COMBUSTION ENGINE WITH A CHAMBER PARTITION INTERCOOLER |
| DE102010036592B4 (en) | 2010-07-23 | 2022-06-09 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Charge air cooling device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6548694B2 (en) * | 2017-05-23 | 2019-07-24 | 株式会社大一商会 | Gaming machine |
-
1983
- 1983-10-21 JP JP58198145A patent/JPS6088821A/en active Granted
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5152144A (en) * | 1990-09-19 | 1992-10-06 | Cummins Engine Company, Inc. | Air to air heat exchanger internal bypass |
| WO2006045986A2 (en) * | 2004-10-28 | 2006-05-04 | Renault S.A.S | Motor comprising an air admission circuit for optimising the volumetric efficiency |
| WO2006045986A3 (en) * | 2004-10-28 | 2006-06-22 | Renault Sa | Motor comprising an air admission circuit for optimising the volumetric efficiency |
| DE102010036592B4 (en) | 2010-07-23 | 2022-06-09 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Charge air cooling device |
| US8640456B2 (en) * | 2011-11-30 | 2014-02-04 | Cummins Intellectual Property, Inc. | Charge air cooler assembly |
| DE102012022416B4 (en) * | 2011-11-30 | 2015-06-11 | Cummins Intellectual Property, Inc. | Intercooler arrangement |
| US9562467B2 (en) | 2011-11-30 | 2017-02-07 | Cummins Intellectual Property, Inc. | Charge air cooler assembly |
| DE102014202971A1 (en) * | 2014-02-18 | 2015-08-20 | Röchling Automotive SE & Co. KG | Intake manifold with integrated intercooler with two circuits |
| US9863327B2 (en) | 2014-02-18 | 2018-01-09 | Röchling Automotive SE & Co. KG | Intake manifold with integrated charge air cooler with two circuits |
| DE102014202971B4 (en) | 2014-02-18 | 2023-01-26 | Röchling Automotive SE & Co. KG | Intake manifold with integrated intercooler with two circuits |
| DE102014006838A1 (en) * | 2014-05-13 | 2015-11-19 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Inlet collector with integrated intercooler and shut-off device |
| DE102014006838B4 (en) | 2014-05-13 | 2019-06-06 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Inlet collector with integrated intercooler and shut-off device |
| DE102016226216B4 (en) | 2016-01-04 | 2020-06-18 | Gm Global Technology Operations, Llc | INTERNAL COMBUSTION ENGINE WITH A CHAMBER PARTITION INTERCOOLER |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0213132B2 (en) | 1990-04-03 |
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