DE3722248C1 - System for temporarily increasing the power output of supercharged internal combustion engines cooled by intercoolers - Google Patents

System for temporarily increasing the power output of supercharged internal combustion engines cooled by intercoolers

Info

Publication number
DE3722248C1
DE3722248C1 DE3722248A DE3722248A DE3722248C1 DE 3722248 C1 DE3722248 C1 DE 3722248C1 DE 3722248 A DE3722248 A DE 3722248A DE 3722248 A DE3722248 A DE 3722248A DE 3722248 C1 DE3722248 C1 DE 3722248C1
Authority
DE
Germany
Prior art keywords
charge air
cooling
internal combustion
power output
coolant
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
Application number
DE3722248A
Other languages
German (de)
Inventor
Bernhard Dipl-Ing Snitil
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Adam Opel GmbH
Original Assignee
Adam Opel GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Adam Opel GmbH filed Critical Adam Opel GmbH
Priority to DE3722248A priority Critical patent/DE3722248C1/en
Application granted granted Critical
Publication of DE3722248C1 publication Critical patent/DE3722248C1/en
Expired legal-status Critical Current

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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
    • F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
    • F02B29/0456—Air cooled heat exchangers
    • 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
    • F02B29/0425—Air cooled heat exchangers
    • F02B29/0431—Details or means to guide the ambient air to the heat exchanger, e.g. having a fan, flaps, a bypass or a special location in the engine compartment
    • 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
    • F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
    • F02B29/0468—Water separation or drainage means
    • 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

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  • 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)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

The invention relates to a system for temporarily increasing the power output of supercharged internal combustion engines cooled by intercoolers, the system having a means of precooling the charge air by means of cooling air in at least one charge air cooler, and also having a separate cooling means. In order to achieve a temporary improvement in charge air cooling and thereby increase the power output of the internal combustion engine, it is proposed according to the invention that the charge air cooler (1) be at least partly enclosed by a case (8) which has butterfly valves (9) and into which a separate coolant (coolant inlet 11) can be introduced. <IMAGE>

Description

Die Erfindung betrifft ein System zur kurzzeitigen Lei­ stungssteigerung von zwischengekühlten, aufgeladenen Ver­ brennungsmotoren, mit einer Vorkühlung der Ladeluft mittels Kühlluft in mindestens einem Ladeluftkühler sowie einer Sonderkühlung.The invention relates to a system for short-term lei Increase in performance of intercooled, charged Ver internal combustion engines, with pre-cooling of the charge air Cooling air in at least one charge air cooler and one Special cooling.

Aus der GB-PS 10 63 722 ist es bekannt, die Ladeluft zu­ nächst einem ersten Wärmetauscher zuzuführen, der von einem kalten Fluid, beispielsweise der Flüssigkeit des Kühlkreis­ laufes des Verbrennungsmotores durchflossen wird, anschlie­ ßend erfolgt die weitere Abkühlung der Ladeluft in einem zweiten Wärmetauscher, der als von Kühlmittel durchflos­ senes Kühlaggregat ausgebildet ist. Auf entsprechende Art und Weise funktioniert das aus der US-PS 31 41 293 bekannte System, dort ist eine Kompressionskältemaschine vorgesehen mit Fluorkohlenstoff als Kühlmittel.From GB-PS 10 63 722 it is known to charge air next to a first heat exchanger supplied by a cold fluid, for example the liquid of the cooling circuit flow of the internal combustion engine, then The further cooling of the charge air takes place in one second heat exchanger, which as coolant flows through sen cooling unit is formed. In a corresponding way way works that known from US-PS 31 41 293 System, there is a compression refrigerator with fluorocarbon as a coolant.

Aus der Praxis ist ein System zur kurzzeitigen Leistungs­ steigerung zwischengekühlter, aufgeladener Verbrennungs­ motoren bekannt, dort strömt Kühlluft zwischen den Rippen eines Ladeluftkühlers. Um kurzzeitig die Leistung des Motors zu erhöhen, wird der Ladeluftkühler mit Wasser be­ rieselt. Der Ladeluftkühler als solcher weist keine Ver­ kleidung auf, da diese den Durchtritt der für die Wasser­ verdunstung in jedem Falle erforderlichen Kühlluft behin­ dern bzw. verhindern würde. Durch die freie Zugänglichkeit des Ladeluftkühlers läßt es sich nicht vermeiden, daß Kühl­ luft auch Wasser mitreißt, was damit für die Verdunstung nicht mehr zur Verfügung steht, es ist hierdurch der Wir­ kungsgrad des Systems erheblich eingeschränkt.A system for short-term performance is in practice increase in intercooled, charged combustion known motors, there flows cooling air between the ribs an intercooler. To temporarily the performance of the To increase the engine, the intercooler is filled with water trickles. The charge air cooler as such has no ver clothes on as this is the passage of water Evaporation in any case required cooling air would prevent. Because of the free accessibility of the charge air cooler, it cannot be avoided that cooling air also entrains water, what with it for evaporation is no longer available, it is therefore the we efficiency of the system is considerably restricted.

Aus der EP-OS 02 06 299 ist schon eine Jalousie für einen Kühler einer Brennkraftmaschine bekannt, die somit Regel­ klappen parallel zur Kühlerstirnfläche aufweist, die derart verstellbar sind, daß entsprechend der benötigten Kühlflä­ che die Regelklappen zusammengefaltet oder auseinander­ bewegt werden können. Indes ist nach diesem Stand der Technik eine zusätzliche Sonderkühlung nicht vorgesehen.From EP-OS 02 06 299 there is already a blind for one Radiator of an internal combustion engine known, the rule fold parallel to the radiator face, which has are adjustable that according to the cooling surface required che the control flaps folded or apart  can be moved. However, according to this status Technology an additional special cooling is not provided.

Es ist Aufgabe vorliegender Erfindung, die Kühlung der Ladeluft zu verbessern, so daß die Leistung des Verbren­ nungsmotors weiter gesteigert werden kann.It is an object of the present invention to cool the Improve charge air so that the performance of burning motor can be further increased.

Gelöst wird die Aufgabe bei einem System der genannten Art dadurch, daß der Ladeluftkühler von einem Regelklappen-Ka­ sten wenigstens teilweise umschlossen ist, in den ein Son­ derkühlmittel eingeleitet werden kann.The task is solved with a system of the type mentioned in that the charge air cooler from a control valve Ka is at least partially enclosed in which a son the coolant can be introduced.

Bei dem erfindungsgemäßen System sind üblicherweise die Re­ gelklappen des den Ladeluftkühler wenigstens teilweise um­ schließenden Kastens geöffnet, so daß die Kühlluft zwischen den Klappen hindurch in den Ladeluftkühler gelangt. Zur kurzzeitigen Leistungssteigerung werden die Regelklappen des Kastens geschlossen. Das in den Kasten eingeleitete Sonderkühlmittel bewirkt dann durch seine Eigenkälte inner­ halb des Kastens die gewünschte, besonders starke Kühlung der Ladeluft in dem Ladeluftkühler. Der Kasten ist zweck­ mäßig unten offen, so daß das erwärmte und infolgedessen expandierte Sonderkühlmittel relativ leicht austreten kann. Wird die Sonderkühlung nicht mehr benötigt, dann werden die Regelklappen des Kastens wieder geöffnet, so daß die Kühl­ luft in der beschriebenen Art und Weise den Ladeluftkühler wieder durchströmen und kühlen kann.In the system according to the invention, the Re gellappen of the intercooler at least partially closing box opened so that the cooling air between through the flaps into the intercooler. To short-term increase in performance are the control valves of the box closed. The one introduced in the box Special coolant then causes internal cold the desired, particularly strong cooling half of the box the charge air in the charge air cooler. The box is purpose moderately open at the bottom, so that the heated and as a result expanded special coolant can escape relatively easily. If the special cooling is no longer required, then the Control flaps of the box opened again, so that the cooling air the charge air cooler in the manner described can flow through and cool again.

Gemäß einer besonderen Ausführungsform der Erfindung ist vorgesehen, daß zwei hintereinander geschaltete Ladeluft­ kühler vorgesehen sind, wobei der ladeluftstromseitig nach­ geschaltete Ladeluftkühler vollständig von dem Regelklappen- Kasten umschlossen ist. Der ladeluftstromseitig vorgeschal­ tete Ladeluftkühler kann dabei in an sich bekannter Weise nur von der Kühlluft durchströmt sein. According to a particular embodiment of the invention provided that two charge air connected in series coolers are provided, with the charge air flow downstream switched intercooler completely from the control flap Box is enclosed. The formwork on the charge air flow side Tete intercooler can in a conventional manner only be flowed through by the cooling air.  

Als Sonderkühlmittel für das erfindungsgemäße System kommt Kohlendioxid oder Stickstoff, insbesondere gänzlich ver­ flüssigter Stickstoff oder vorkomprimierte Umgebungsluft in Frage.Comes as a special coolant for the system according to the invention Carbon dioxide or nitrogen, especially completely ver liquid nitrogen or pre-compressed ambient air in question.

Eine Ausführungsform der Erfindung ist anhand der Zeichnung näher erläutert, ohne auf diese beschränkt zu sein. Es zeigt in schematischer DarstellungAn embodiment of the invention is based on the Drawing explained in more detail without being limited to this to be. It shows in a schematic representation

Fig. 1 das erfindungsgemäße System zur kurzzeitigen Leistungssteigerung der genannten Verbren­ nungsmotore, Fig. 1, the inventive system voltage motore for short-term increase in performance of said Burn,

Fig. 2 den Regelklappen-Kasten in geöffneter Stel­ lung der Regelklappen und Fig. 2 the control flap box in the open position of the control flaps and

Fig. 3 eine Darstellung gemäß Fig. 2 bei geschlos­ sener Stellung der Regelklappen. Fig. 3 is an illustration of FIG. 2 with closed position of the control flaps.

Der Ladeluftkühler 1 weist eine Vielzahl parallel zueinander angeordneter Rippen 2 auf. Durch die zwischen benachbarten Rippen 2 gebildete Öffnung 3 strömt in Richtung der Pfeile A Kühlluft durch den Ladeluftkühler 1. Im unteren Bereich ist der Ladeluftkühler 1 mit einem Lufteintritt 4 für die Ladeluft versehen, die Ladeluft gelangt durch ein Verteil­ rohr 5 und die Rippen 2 zu einem oberen Sammelrohr 6, das einen Luftaustritt 7 für die gekühlte Ladeluft besitzt.The charge air cooler 1 has a plurality of ribs 2 arranged parallel to one another. Cooling air flows through the charge air cooler 1 through the opening 3 formed between adjacent ribs 2 in the direction of the arrows A. In the lower area, the charge air cooler 1 is provided with an air inlet 4 for the charge air, the charge air passes through a distribution pipe 5 and the fins 2 to an upper header pipe 6 , which has an air outlet 7 for the cooled charge air.

Etwa das obere Drittel des Ladeluftkühlers 1 ist von einem Kasten 8 umschlossen, dessen dem Kühlluftstrom zugewandte bzw. abgewandte Seiten Regelklappen 9 oder eine Jalousie aufweisen. Im Standardbetrieb, der in Fig. 2 gezeigt ist, befinden sich die Regelklappen 9 in ihrer geöffneten Stel­ lung, so daß die komplette dem Kühlluftstrom zugewandte Fläche des Ladeluftkühlers 1 von der Kühlluft angeströmt wird. Um den Verbrennungsmotor durch eine intensivere Küh­ lung der Ladeluft in seiner Leistung zu steigern, werden die Regelklappen 9 in ihre geschlossene Stellung überführt und Kühlmittel durch einen im Kastendeckel 18 angeordneten Kühlmitteleintritt 11 in den Kasten 8 geleitet. Dieser ist unten offen, womit das erwärmte und infolgedessen expan­ dierte Kühlmittel relativ leicht aus dem Kasten austreten kann. Wird die gesonderte Kühlung nicht mehr benötigt, wer­ den die Regelklappen 9 wieder in ihre geöffnete Stellung überführt, so daß die Kühlluft den Ladeluftkühler 1 über die ganze, dem Kühlluftstrom zugewandte Fläche durchströmt. Es versteht sich, daß der Regelklappen-Kasten nach einer an­ deren Ausführungsform auch entsprechend der EP-OS 02 06 299 ausgeführt sein kann.Approximately the upper third of the charge air cooler 1 is enclosed by a box 8 , the sides of which face the cooling air flow or have control flaps 9 or a blind. In standard operation, which is shown in Fig. 2, the control flaps 9 are in their open position, so that the entire surface of the charge air cooler 1 facing the cooling air flow is flown by the cooling air. In order to increase the performance of the internal combustion engine through more intensive cooling of the charge air, the control flaps 9 are transferred into their closed position and coolant is passed through a coolant inlet 11 arranged in the box cover 18 into the box 8 . This is open at the bottom, so that the heated and consequently expanded coolant can escape from the box relatively easily. If the separate cooling is no longer required, whoever transfers the control flaps 9 back into their open position, so that the cooling air flows through the charge air cooler 1 over the entire surface facing the cooling air flow. It goes without saying that the control flap box can also be designed in accordance with another embodiment in accordance with EP-OS 02 06 299.

Als Kühlmittel kommt insbesondere verdichteter Stickstoff oder Kohlendioxid in Frage, eventuell auch gänzlich ver­ flüssigter Stickstoff. Als Kühlmittel kann auch vorkompri­ mierte Umgebungsluft eingesetzt werden. Diese wird während der Fahrt von einem in dem Kraftfahrzeug befindlichen Kom­ pressor verdichtet, abgekühlt und in einem in dem Kraft­ fahrzeug sowieso erforderlichen Hochdrucktank für das Kühl­ mittel zwischengespeichert. Der Kompressor wird z. B. vom Motor immer nur automatisch während des Schubbetriebes an­ getrieben, so daß im Ergebnis kein Leistungsverlust am Motor eintritt. Sobald die zusätzliche Kühlung benötigt wird, läßt man die komprimierte und abgekühlte Umgebungs­ luft in den geschlossenen Kasten einströmen, wobei sie sich zwangsläufig stark abkühlt und dadurch zur stärkeren Ab­ kühlung der Ladeluft beiträgt.Compressed nitrogen in particular is used as the coolant or carbon dioxide in question, possibly also ver liquid nitrogen. As a coolant, vorkompri ambient air can be used. This will be during the journey from a Kom located in the motor vehicle pressor compressed, cooled and in one in the force vehicle anyway required high pressure tank for the cooling medium cached. The compressor is e.g. B. from Engine always only starts automatically during coasting driven so that as a result no loss of performance on Engine enters. As soon as the additional cooling is needed is allowed to leave the compressed and cooled environment air flow into the closed box, whereby it inevitably cools down strongly and thereby to a stronger ab cooling of the charge air contributes.

Zur Steuerung des Systems sind diverse regeltechnische Varianten denkbar. So kann z. B. das ganze System manuell oder über "Kick-Down" aktiviert werden. Der Kühlmittel­ strom kann elektronisch geregelt werden, wobei Daten wie Motordrehzahl, Fahrpedalstellung, Ladedruck, Temperatur usw. verarbeitet werden. Zweckmäßig entweicht das Kühl­ mittel über eine Drossel, die eventuell variabel gestaltet und in die elektronische Regelung integriert werden kann. To control the system there are various control engineering Variants conceivable. So z. B. the whole system manually or activated via "Kick-Down". The coolant Electricity can be controlled electronically, with data such as Engine speed, accelerator pedal position, boost pressure, temperature etc. are processed. The cooling expediently escapes medium via a throttle, which may be variable and can be integrated into the electronic control.  

  • Bezugszeichenliste  1 Ladeluftkühler
     2 Rippe
     3 Öffnung
     4 Lufteintritt
     5 Verteilerrohr
     6 Sammelrohr
     7 Luftaustritt
     8 Kasten
     9 Regelklappen
    10 Kastendeckel
    11 Kühlmitteleintritt    List of reference symbols 1 intercooler
    2 rib
    3 opening
    4 air intake
    5 manifold
    6 manifold
    7 air outlet
    8 boxes
    9 control flaps
    10 box covers
    11 Coolant inlet

Claims (4)

1. System zur kurzzeitigen Leistungssteigerung von zwi­ schengekühlten, aufgeladenen Verbrennungsmotoren, mit einer Vorkühlung der Ladeluft mittels Kühlung in min­ destens einem Ladeluftkühler sowie einer Sonderkühlung, dadurch gekennzeichnet, daß der Ladeluftkühler (1) von einem Regelklappen- Kasten (9, 8) wenigstens teilweise umschlossen ist, in den ein Sonderkühlmittel eingeleitet werden kann.1. System for short-term performance increase between intercooled, charged internal combustion engines, with a pre-cooling of the charge air by means of cooling in at least one charge air cooler and a special cooling, characterized in that the charge air cooler ( 1 ) from a control valve box ( 9, 8 ) at least partially is enclosed, into which a special coolant can be introduced. 2. System zur Leistungssteigerung nach Anspruch 1, dadurch gekennzeichnet, daß zwei hintereinander geschaltete Ladeluftkühler vorgesehen sind, wobei der ladeluftstromseitig nachge­ schaltete Ladeluftkühler vollständig von dem Regel­ klappen-Kasten umschlossen ist.2. System for increasing performance according to claim 1, characterized, that two intercoolers connected in series are provided, the charge air flow side nachge switched intercooler completely from the rule flap box is enclosed. 3. System zur Leistungssteigerung nach Anspruch 1 oder 2, gekennzeichnet durch Kohlendioxid oder Stickstoff, insbesondere verflüs­ sigter Stickstoff oder vorkomprimierte Umgebungsluft als Sonderkühlmittel. 3. System for increasing performance according to claim 1 or 2, marked by Carbon dioxide or nitrogen, especially liquefied increased nitrogen or pre-compressed ambient air as a special coolant.   4. System zur Leistungssteigerung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Regelklappen-Kasten nach unten offen ist.4. System to increase performance according to one of the Claims 1 to 3, characterized, that the control valve box is open at the bottom.
DE3722248A 1987-07-06 1987-07-06 System for temporarily increasing the power output of supercharged internal combustion engines cooled by intercoolers Expired DE3722248C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE3722248A DE3722248C1 (en) 1987-07-06 1987-07-06 System for temporarily increasing the power output of supercharged internal combustion engines cooled by intercoolers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3722248A DE3722248C1 (en) 1987-07-06 1987-07-06 System for temporarily increasing the power output of supercharged internal combustion engines cooled by intercoolers

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DE3722248C1 true DE3722248C1 (en) 1988-09-01

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10106687A1 (en) * 2001-02-14 2002-08-29 Karl-Otto Noelle Increasing power of internal combustion engines with charging systems, involves matching production controler engine performance graphs to new requirements, replacing turbocharger
DE102006032205A1 (en) * 2006-07-12 2008-01-17 Modine Manufacturing Co., Racine Heat exchanger with coupling connection and coupling connection

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1063722A (en) * 1964-03-16 1967-03-30 Materiels Hispanosuiza Soc D E Improvements in supercharged internal combustion engines

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1063722A (en) * 1964-03-16 1967-03-30 Materiels Hispanosuiza Soc D E Improvements in supercharged internal combustion engines

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP 55-60 618 A Patents Abstr. of Japan, Sect. M., Vol. 4, (1980), Nr. 102, (M-22) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10106687A1 (en) * 2001-02-14 2002-08-29 Karl-Otto Noelle Increasing power of internal combustion engines with charging systems, involves matching production controler engine performance graphs to new requirements, replacing turbocharger
DE102006032205A1 (en) * 2006-07-12 2008-01-17 Modine Manufacturing Co., Racine Heat exchanger with coupling connection and coupling connection
WO2008006431A1 (en) * 2006-07-12 2008-01-17 Modine Manufacturing Company Heat exchanger with coupling connection, for example charge air cooler, and coupling connection for heat exchanger
US8528629B2 (en) 2006-07-12 2013-09-10 Modine Manufacturing Company Heat exchanger with a flow connector

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