DE102020105132A1 - Cooling arrangement for cooling the charge air of a supercharged internal combustion engine - Google Patents
Cooling arrangement for cooling the charge air of a supercharged internal combustion engine Download PDFInfo
- Publication number
- DE102020105132A1 DE102020105132A1 DE102020105132.8A DE102020105132A DE102020105132A1 DE 102020105132 A1 DE102020105132 A1 DE 102020105132A1 DE 102020105132 A DE102020105132 A DE 102020105132A DE 102020105132 A1 DE102020105132 A1 DE 102020105132A1
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- Germany
- Prior art keywords
- cooling
- charge air
- internal combustion
- arrangement
- combustion 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.)
- Pending
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Classifications
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- 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
- F02B29/0437—Liquid cooled heat exchangers
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- 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
- F02B29/0462—Liquid cooled heat exchangers
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- 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
- F02B29/0481—Intake air cooling by means others than heat exchangers, e.g. by rotating drum regenerators, cooling by expansion or by electrical means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
- F02M35/10268—Heating, cooling or thermal insulating means
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- 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)
- Supercharger (AREA)
Abstract
Kühlanordnung zur Kühlung von Ladeluft einer aufgeladenen Brennkraftmaschine (4), wobei in einer Ladeluftleitung (8), die zur Brennkraftmaschine (4) führt, eine Expansionsanordnung mit zumindest einer Turbinenstufe (20, 22) zur Senkung des Druckniveaus und damit zur Kühlung der Ladeluft vorgesehen ist, wobei dass die Expansionsanordnung (2) als axial durchströmte Expansionsanordnung (2) mit mindestens einer, der Turbinenstufe (20, 22) vorgeschalteten Verdichterstufe (18) ausgebildet ist, wobei zumindest zwischen der Verdichterstufe (18) und der Turbinenstufe (20, 22) eine Kühlvorrichtung (24, 26) angeordnet ist.Cooling arrangement for cooling charge air of a charged internal combustion engine (4), an expansion arrangement with at least one turbine stage (20, 22) for lowering the pressure level and thus for cooling the charge air being provided in a charge air line (8) leading to the internal combustion engine (4) is, wherein the expansion arrangement (2) is designed as an axial flow-through expansion arrangement (2) with at least one compressor stage (18) upstream of the turbine stage (20, 22), wherein at least between the compressor stage (18) and the turbine stage (20, 22 ) a cooling device (24, 26) is arranged.
Description
Die Erfindung betrifft eine Kühlanordnung zur Kühlung von Ladeluft einer aufgeladenen Brennkraftmaschine, wobei in einer Ladeluftleitung, die zur Brennkraftmaschine führt, eine Expansionsanordnung mit zumindest einer Turbinenstufe zur Senkung des Druckniveaus und damit zur Kühlung der Ladeluft vorgesehen ist.The invention relates to a cooling arrangement for cooling charge air of a charged internal combustion engine, an expansion arrangement with at least one turbine stage for lowering the pressure level and thus for cooling the charge air being provided in a charge air line leading to the internal combustion engine.
Durch Turbolader aufgeladene Brennkraftmaschinen, insbesondere Otto-Brennkraftmaschinen, benötigen eine Kühlung der vom Verdichter eines Turboladers in einer Ladeluftleitung zur Brennkraftmaschine geführten Ladeluft, damit die Verbrennungsluft nicht zu heiß ist, was die Klopfneigung der Brennkraftmaschine extrem negativ beeinflusst. Um dieses Problem zu lösen, ist es bekannt, sogenannte Ladeluftkühler einzusetzen, durch die die verdichtete Ladeluft geführt wird und abgekühlt wird. Ein Nachteil dieser Ladeluftkühler ist, dass sie für eine größere Kühlleistung eine relativ große Kühlfläche aufweisen müssen, für die in modernen Kraftfahrzeugen nicht der nötige Bauraum bereit steht. Auch ist es bekannt, die verdichtete Ladeluft durch Verwendung eines Klimakompressors abzukühlen. Diese Art der Kühlung weist jedoch den Nachteil auf, dass hierdurch wiederrum die Energiebilanz des Kraftfahrzeuges wesentlich negativ beeinflusst wird. Eine gattungsgemäße Kühlanordnung ist aus der deutschen Patentschrift
Aufgabe der Erfindung ist es daher, die oben genannten Nachteile auf einfache und kostengünstige Weise zu vermeiden.The object of the invention is therefore to avoid the above-mentioned disadvantages in a simple and inexpensive manner.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Expansionsanordnung als axialdurchströmte Expansionsanordnung mit mindestens einer, der Turbinenstufe vorgeschalteten Verdichterstufe ausgebildet ist, wobei zumindest zwischen der Verdichterstufe und der Turbinenstufe eine Kühlvorrichtung angeordnet ist. Durch diese Anordnung kann mit einer relativ geringen Kühlfläche die gewünschte Temperaturverringerung bei geringem Druckverlust und Entropieabnahme bewirkt werden.This object is achieved according to the invention in that the expansion arrangement is designed as an axial flow-through expansion arrangement with at least one compressor stage upstream of the turbine stage, a cooling device being arranged at least between the compressor stage and the turbine stage. With this arrangement, the desired temperature reduction can be brought about with a relatively small cooling surface with little pressure loss and entropy decrease.
In besonders vorteilhafter Weise sind zwei aufeinanderfolgende Turbinenstufen vorgesehen, wodurch mit einem relativ geringen Bauraum eine hohe Temperaturverringerung erzielt werden kann.In a particularly advantageous manner, two successive turbine stages are provided, as a result of which a high temperature reduction can be achieved with a relatively small installation space.
In besonders vorteilhafter Weise sind die Verdichter- und Turbinenstufe auf einer gemeinsamen Welle drehfest angeordnet. Hierdurch ist es möglich, die Verdichterstufe/-n durch die Turbinenstufe/-n antreiben zulassen.In a particularly advantageous manner, the compressor and turbine stages are arranged non-rotatably on a common shaft. This makes it possible to allow the compressor stage (s) to be driven by the turbine stage (s).
Um einen in jeder Betriebssituation sicheren Betrieb zu gewährleisten ist ein elektrischer Antrieb für die mindestens eine Verdichterstufe vorgesehen, die für den Fall, dass Verdichter- und Turbinenstufen auf einer gemeinsamen Welle drehfest angeordnet sind, lediglich zu Beginn des Kühlprozesses die Verdichterstufe/-n antreiben muss. Auch ist es denkbar, dass im Falle einer gemeinsamen Welle diese durch den anliegenden Druck angetrieben wird.In order to ensure safe operation in every operating situation, an electric drive is provided for the at least one compressor stage, which only needs to drive the compressor stage (s) at the beginning of the cooling process in the event that the compressor and turbine stages are arranged in a rotationally fixed manner on a common shaft . It is also conceivable that, in the case of a common shaft, this is driven by the applied pressure.
In einer besonders kompakten Bauweise ist die Kühlvorrichtung aus Leitschaufeln aufgebaut, die zudem eine optimale Anströmung der Verdichterstufe gewährleisten. Hierbei sind die Leitschaufeln in vorteilhafterweise als flüssigkeitsdurchströmte Schaufeln ausgebildet.In a particularly compact design, the cooling device is made up of guide vanes, which also ensure an optimal flow to the compressor stage. Here, the guide vanes are advantageously designed as vanes through which liquid flows.
In besonders vorteilhafter Weise ist die Expansionsanordnung in einem Gehäuse vorgesehen, dass eine Vormontage der einzelnen Bauteile erlaubt, um während der Endmontage im Kraftfahrzeug verbaut zu werden.In a particularly advantageous manner, the expansion arrangement is provided in a housing that allows pre-assembly of the individual components in order to be installed in the motor vehicle during final assembly.
Die Erfindung wird anhand einer Zeichnung näher erläutert, hierbei zeigt
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1 eine schematische Ansicht einer Kühlanordnung zur Kühlung der Ladeluft einer aufgeladenen Brennkraftmaschine, und -
2 ein beispielhaftes T-s-Diagramm mit den Zustandsgrößen der Ladeluft aus1 .
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1 a schematic view of a cooling arrangement for cooling the charge air of a supercharged internal combustion engine, and -
2 an exemplary Ts diagram with the state variables of the charge air1 .
Die Expansionsanordnung
Die Kühlung der Ladeluft bei geringem Druckverlust für das in
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDED IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturPatent literature cited
- DE 102016113307 B3 [0002]DE 102016113307 B3 [0002]
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102020105132.8A DE102020105132A1 (en) | 2020-02-27 | 2020-02-27 | Cooling arrangement for cooling the charge air of a supercharged internal combustion engine |
Applications Claiming Priority (1)
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DE102020105132.8A DE102020105132A1 (en) | 2020-02-27 | 2020-02-27 | Cooling arrangement for cooling the charge air of a supercharged internal combustion engine |
Publications (1)
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DE102020105132A1 true DE102020105132A1 (en) | 2021-09-02 |
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DE102020105132.8A Pending DE102020105132A1 (en) | 2020-02-27 | 2020-02-27 | Cooling arrangement for cooling the charge air of a supercharged internal combustion engine |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5279130A (en) | 1992-06-18 | 1994-01-18 | General Electric Company | Auxiliary refrigerated air system with anti-icing |
US20070101756A1 (en) | 2004-07-30 | 2007-05-10 | Mitsubishi Heavy Industries, Ltd. | Air-refrigerant cooling apparatus |
US20090217693A1 (en) | 2004-07-30 | 2009-09-03 | Mitsubishi Heavy Industries Ltd. | Air refrigerant type cooling apparatus and air refrigerant cooling/heating system using refrigerant type cooling apparatus |
US20130133348A1 (en) | 2011-11-28 | 2013-05-30 | Hamilton Sundstrand Corporation | Blended flow air cycle system for environmental control |
DE102016113307B3 (en) | 2016-07-19 | 2018-01-11 | Ge Jenbacher Gmbh & Co Og | Dual fuel engine |
US20190056152A1 (en) | 2015-10-28 | 2019-02-21 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Heat pump |
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2020
- 2020-02-27 DE DE102020105132.8A patent/DE102020105132A1/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5279130A (en) | 1992-06-18 | 1994-01-18 | General Electric Company | Auxiliary refrigerated air system with anti-icing |
US20070101756A1 (en) | 2004-07-30 | 2007-05-10 | Mitsubishi Heavy Industries, Ltd. | Air-refrigerant cooling apparatus |
US20090217693A1 (en) | 2004-07-30 | 2009-09-03 | Mitsubishi Heavy Industries Ltd. | Air refrigerant type cooling apparatus and air refrigerant cooling/heating system using refrigerant type cooling apparatus |
US20130133348A1 (en) | 2011-11-28 | 2013-05-30 | Hamilton Sundstrand Corporation | Blended flow air cycle system for environmental control |
US20190056152A1 (en) | 2015-10-28 | 2019-02-21 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Heat pump |
DE102016113307B3 (en) | 2016-07-19 | 2018-01-11 | Ge Jenbacher Gmbh & Co Og | Dual fuel engine |
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