EP1541935B1 - Heat exchanger for a heater - Google Patents

Heat exchanger for a heater Download PDF

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Publication number
EP1541935B1
EP1541935B1 EP04029395A EP04029395A EP1541935B1 EP 1541935 B1 EP1541935 B1 EP 1541935B1 EP 04029395 A EP04029395 A EP 04029395A EP 04029395 A EP04029395 A EP 04029395A EP 1541935 B1 EP1541935 B1 EP 1541935B1
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EP
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Prior art keywords
heat exchanger
heat
exchanger housing
housing
magnesium
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EP04029395A
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German (de)
French (fr)
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EP1541935A3 (en
EP1541935A2 (en
EP1541935B2 (en
Inventor
Andreas Alber
Andreas Collmer
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Eberspaecher Climate Control Systems GmbH and Co KG
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J Eberspaecher GmbH and Co KG
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Application filed by J Eberspaecher GmbH and Co KG filed Critical J Eberspaecher GmbH and Co KG
Priority to PL04029395T priority Critical patent/PL1541935T3/en
Publication of EP1541935A2 publication Critical patent/EP1541935A2/en
Publication of EP1541935A3 publication Critical patent/EP1541935A3/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/24Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
    • F24H1/26Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body
    • F24H1/263Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body with a dry-wall combustion chamber

Definitions

  • the present invention relates to a heat exchanger assembly for a heater, in particular vehicle heater, comprising an inner heat exchanger housing, which together with an outer heat exchanger housing, called jacket, a flow space for medium to be heated, as it is known from DE-A-10 207 953 is known.
  • used heat exchanger assemblies generally takes the inner heat exchanger housing from the combustion gases flowing therein heat and transported them toward the medium to be heated, for example, a liquid medium, such as. B. water.
  • the heat transfer from the hot combustion exhaust gases to the medium to be heated should be as possible without heat transfer losses, d. H. through the inner heat exchanger housing as low as possible heat transfer resistance to be provided. Since the two heat exchanger housings are generally made of the same material, there is the problem that the medium to be heated, which receives heat via the inner heat exchanger housing, then transfers this heat to the outer heat exchanger housing and from there the heat to the environment is emitted as radiant heat.
  • the outer heat exchanger housing is formed of magnesium or magnesium containing material.
  • magnesium or a magnesium-containing material such as a magnesium alloy
  • a magnesium-containing material such as a magnesium alloy
  • the outer heat exchanger housing made of magnesium or a magnesium-containing material, it is advantageous for efficient heat transfer from the combustion exhaust gases to the medium to be heated, when the inner heat exchanger housing is made of aluminum or an aluminum-containing material.
  • a heat exchanger assembly according to the invention is generally designated 10.
  • This heat exchanger assembly 10 is shown here in combination with a heater 12, of which the essential system areas are recognizable.
  • the heater comprises a pot-like combustion chamber housing 14, which encloses a combustion chamber 16.
  • the fuel to be combusted and the combustion air required for this purpose are fed, and the combustion exhaust gases generated in the combustion chamber 16 combustion flow from the open towards the longitudinal axis L combustion chamber housing 14 through a flame cover 18 in a subsequent to the combustion chamber housing 14 Flame tube 20 a.
  • the hot combustion exhaust gases exit in the direction of the arrows, are deflected by the heat exchanger arrangement 10 and flow back on the outside of the flame tube 20. During this backflow and when impinging on the heat exchanger assembly 10, the combustion exhaust gases transfer heat to the heat exchanger assembly 10 and thus a medium to be heated flowing therein.
  • the heat exchanger assembly 10 comprises a cup-like inner heat exchanger housing 24 and an outer heat exchanger housing 26 surrounding it and substantially likewise pot-shaped. These two pot-shaped heat exchanger housings 24, 26 are fixedly connected to each other in an edge region 28 to produce a substantially tight seal, for example by gluing. In this way, a flow space 30 is formed between the two heat exchanger housings 24, 26, which is the medium to be heated, that is, for example, a liquid such as Water or the like, can flow through. For this purpose, not shown inlet and outlet openings are available, which allow a flow through the heat exchanger assembly 10.
  • combustion exhaust gases impinge on a bottom portion 32 of the inner heat exchanger housing 24 and are deflected by this radially outward.
  • the combustion exhaust gases then flow back in the direction of the combustion chamber housing 14 and then leave the arrangement in the region of an outlet opening.
  • the combustion exhaust gases transfer heat to the inner heat exchanger housing 24, which in turn emits the heat to the medium flowing in the flow space 30.
  • the inner heat exchanger housing 24 may be provided on its outer side with a helical projection configuration 38 which on the one hand increases the interaction surface and on the other hand ensures that the medium flowing in the flow space 30 takes a helical path and thus a comparatively has long interaction path for heat absorption. Also in the bottom region 32, projections 40 may be formed for improved heat transfer.
  • the inner heat exchanger housing 24 should be constructed of a material which on the one hand can be exposed to the high temperatures of the combustion exhaust gases, but on the other hand has a comparatively low thermal resistance.
  • a material is provided for constructing the same, which ensures that the heat absorbed in the medium to be heated is essentially also contained therein.
  • this outer heat exchanger housing 26 made of magnesium or a magnesium-containing material, such as. B. a Magesiumleg réelle constructed.
  • This material has a significantly lower coefficient of thermal conductivity compared to aluminum with approx. 50 W / mK. Because of this, therefore, a significantly greater resistance is opposed to the heat flow in the outer heat exchanger housing 26, with the result that the heat absorbed in the medium to be heated essentially also remains therein and is removed from the region of the heat exchanger arrangement.
  • magnesium also has a significant weight reduction compared to, for example, constructed of aluminum housings result. Also, using this material this outer heat exchanger housing can be made with thinner material thickness, which on the one hand a compact design is made possible and on the other hand, due to the lower material volume and the higher price of magnesium can be compensated compared to aluminum. Furthermore, magnesium or a magnesium alloy material is characterized by a very high corrosion resistance and a better castability compared to aluminum, which in turn results in longer tool life. In the production of such housing components made of magnesium or a magnesium alloy very low manufacturing tolerances can be achieved. In addition, this material is characterized by a good workability. Finally, magnesium can also be prepared by bonding methods, such. B. bonding, very stable with other materials, such. As aluminum, connect, so that a fluid-tight termination of the flow space 30 can be ensured.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Details Of Fluid Heaters (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)

Abstract

Together with an outer heat-exchanger housing (26) of magnesium-type material, an inner heat-exchanger housing (24) of aluminum-type material marks the boundary of a flow area (30) for a substance to be heated up, e.g. water. Both heat-exchanger housings have a pot-type shape and are glued together in an edge area (28).

Description

Die vorliegende Erfindung betrifft eine Wärmetauscheranordnung für ein Heizgerät, insbesondere Fahrzeugheizgerät, umfassend ein inneres Wärmetauschergehäuse, das zusammen mit einem äußeren Wärmetauschergehäuse, Mantel genannt, einen Strömungsraum für zu erwärmendes Medium begrenzt, wie sie aus der DE-A-10 207 953 bekannt ist.The present invention relates to a heat exchanger assembly for a heater, in particular vehicle heater, comprising an inner heat exchanger housing, which together with an outer heat exchanger housing, called jacket, a flow space for medium to be heated, as it is known from DE-A-10 207 953 is known.

Bei derartigen beispielsweise in Fahrzeugheizgeräten, die als Zuheizer oder Standheizung betrieben werden können, eingesetzten Wärmetauscheranordnungen nimmt im Allgemeinen das innere Wärmetauschergehäuse von den darin strömenden Verbrennungsabgasen Wärme auf und transportiert diese in Richtung zu dem zu erwärmenden Medium, also beispielsweise einem flüssigen Medium, wie z. B. Wasser. Dabei soll der Wärmeübertrag von den heißen Verbrennungsabgasen zu dem zu erwärmendem Medium möglichst ohne Wärmeübertragungsverluste erfolgen, d. h. durch das innere Wärmetauschergehäuse soll ein möglichst geringer Wärmeübertragungswiderstand bereitgestellt werden. Da im Allgemeinen die beiden Wärmetauschergehäuse aus dem gleichen Material gebildet sind, besteht das Problem, dass das zu erwärmende Medium, das über das innere Wärmetauschergehäuse Wärme zugeführt bekommt, diese Wärme dann auch auf das äußere Wärmetauschergehäuse überträgt und von diesem die Wärme dann zur Umgebung hin als Strahlungswärme abgegeben wird.In such, for example, in vehicle heaters, which can be operated as a heater or auxiliary heating, used heat exchanger assemblies generally takes the inner heat exchanger housing from the combustion gases flowing therein heat and transported them toward the medium to be heated, for example, a liquid medium, such as. B. water. In this case, the heat transfer from the hot combustion exhaust gases to the medium to be heated should be as possible without heat transfer losses, d. H. through the inner heat exchanger housing as low as possible heat transfer resistance to be provided. Since the two heat exchanger housings are generally made of the same material, there is the problem that the medium to be heated, which receives heat via the inner heat exchanger housing, then transfers this heat to the outer heat exchanger housing and from there the heat to the environment is emitted as radiant heat.

Es ist die Aufgabe der vorliegenden Erfindung, eine Wärmetauscheranordnung bereitzustellen, welche eine effizientere Übertragung der Wärme auf das zu erwärmende Medium ermöglicht.It is the object of the present invention to provide a heat exchanger assembly which allows a more efficient transfer of the heat to the medium to be heated.

Erfindungsgemäß wird diese Aufgabe gelöst durch die Massgabe, dass das äußere Wärmetauschergehäuse aus Magnesium oder Magnesium enthaltendem Material gebildet ist.According to the invention, this object is achieved by the proviso that the outer heat exchanger housing is formed of magnesium or magnesium containing material.

Der Einsatz von Magnesium oder einem Magnesium haltigen Material, also beispielsweise einer Magnesiumlegierung, führt zu dem elementaren Vorteil, dass aufgrund der Tatsache, dass Magnesium einen deutlich geringeren Wärmeleitkoeffizienten aufweist, als beispielsweise Aluminium, der Wärmeübertrag von dem zu erwärmenden Medium auf das äußere Wärmetauschergehäuse und von diesem dann zur Umgebung hin deutlich gemindert werden kann. Das heißt, die einmal über das innere Wärmetauschergehäuse auf das zu erwärmende Medium übertragene Wärme wird zu einem deutlich geringeren Anteil auf das äußere Wärmetauschergehäuse übertragen und kann somit effizienter in dem zu erwärmenden Medium abtransportiert werden.The use of magnesium or a magnesium-containing material, such as a magnesium alloy, leads to the elementary advantage that due to the fact that magnesium has a significantly lower thermal conductivity than, for example, aluminum, the heat transfer from the medium to be heated to the outer heat exchanger housing and From this then the environment can be significantly reduced. That is, the once transferred via the inner heat exchanger housing to the medium to be heated heat is transferred to a much lower proportion of the outer heat exchanger housing and thus can be transported away more efficiently in the medium to be heated.

Bei einer aus baulichen Gründen besonders bevorzugten Ausgestaltungsform kann vorgesehen sein, dass das innere Wärmetauschergehäuse und das äußere Wärmetauschergehäuse im Wesentlichen topfartig ausgebildet sind.In an embodiment which is particularly preferred for constructional reasons, provision can be made for the inner heat exchanger housing and the outer heat exchanger housing to be substantially pot-shaped.

Um insbesondere auch dann, wenn für die beiden Wärmetauschergehäuse unterschiedliche Materialien verwendet werden, eine stabile Verbindung und somit auch einen dichten Abschluss des das zu erwärmende Medium führenden Strömungsraums zu erlangen, wird vorgeschlagen, dass das innere Wärmetauschergehäuse und das äußere Wärmetauschergehäuse in einem Randbereich durch Verkleben miteinander verbunden sind.In particular, even if different materials are used for the two heat exchanger housings to obtain a stable connection and thus also a tight seal of the medium to be heated leading flow space, it is proposed that the inner heat exchanger housing and the outer heat exchanger housing in an edge region by gluing connected to each other.

Auch bei Aufbau des äußeren Wärmetauschergehäuses aus Magnesium oder einem Magnesium enthaltenden Material ist es zur effizienten Wärmeübertragung von den Verbrennungsabgasen auf das zu erwärmende Medium vorteilhaft, wenn das innere Wärmetauschergehäuse aus Aluminium oder einem Aluminium enthaltenden Material gebildet ist.Also, in the structure of the outer heat exchanger housing made of magnesium or a magnesium-containing material, it is advantageous for efficient heat transfer from the combustion exhaust gases to the medium to be heated, when the inner heat exchanger housing is made of aluminum or an aluminum-containing material.

Die vorliegende Erfindung wird nachfolgend mit Bezug auf die beiliegende Zeichnung detailliert beschrieben, welche eine Längsschnittansicht eines mit einer erfindungsgemäßen Wärmetauscheranordnung ausgestatteten Heizgeräts zeigt.The present invention will be described in detail below with reference to the accompanying drawing, which shows a longitudinal sectional view of a heater equipped with a heat exchanger assembly according to the invention.

In der Figur ist eine erfindungsgemäße Wärmetauscheranordnung allgemein mit 10 bezeichnet. Diese Wärmetauscheranordnung 10 ist hier in Kombination mit einem Heizgerät 12 gezeigt, von welchem die wesentlichen Systembereiche erkennbar sind. So umfasst das Heizgerät ein topfartiges Brennkammergehäuse 14, das eine Brennkammer 16 umschließt. In diese Brennkammer 16 werden der zu verbrennende Brennstoff und die dazu erforderliche Verbrennungsluft eingespeist, und die bei der in der Brennkammer 16 ablaufenden Verbrennung erzeugten Verbrennungsabgase strömen aus dem in Richtung der Längsache L offenen Brennkammergehäuse 14 durch eine Flammblende 18 in ein an das Brennkammergehäuse 14 anschließendes Flammrohr 20 ein. Am axial offenen Endbereich 22 des Flammrohrs 20 treten die heißen Verbrennungsabgase in Richtung der Pfeile aus diesem aus, werden durch die Wärmetauscheranordnung 10 umgelenkt und strömen an der Außenseite des Flammrohrs 20 zurück. Bei dieser Zurückströmung und beim Auftreffen auf die Wärmetauscheranordnung 10 übertragen die Verbrennungsabgase Wärme auf die Wärmetauscheranordnung 10 und somit ein darin strömendes zu erwärmendes Medium.In the figure, a heat exchanger assembly according to the invention is generally designated 10. This heat exchanger assembly 10 is shown here in combination with a heater 12, of which the essential system areas are recognizable. Thus, the heater comprises a pot-like combustion chamber housing 14, which encloses a combustion chamber 16. In this combustion chamber 16, the fuel to be combusted and the combustion air required for this purpose are fed, and the combustion exhaust gases generated in the combustion chamber 16 combustion flow from the open towards the longitudinal axis L combustion chamber housing 14 through a flame cover 18 in a subsequent to the combustion chamber housing 14 Flame tube 20 a. At the axially open end region 22 of the flame tube 20, the hot combustion exhaust gases exit in the direction of the arrows, are deflected by the heat exchanger arrangement 10 and flow back on the outside of the flame tube 20. During this backflow and when impinging on the heat exchanger assembly 10, the combustion exhaust gases transfer heat to the heat exchanger assembly 10 and thus a medium to be heated flowing therein.

Man erkennt in der Figur, dass die Wärmetauscheranordnung 10 ein topfartiges inneres Wärmetauschergehäuse 24 und ein dieses umgebendes und im Wesentlichen ebenfalls topfartig ausgestaltetes äußeres Wärmetauschergehäuse 26 umfasst. Diese beiden topfartigen Wärmetauschergehäuse 24, 26 sind in einem Randbereich 28 unter Erzeugung eines im Wesentlichen dichten Abschlusses beispielsweise durch Verklebung miteinander fest verbunden. Auf diese Art und Weise wird zwischen den beiden Wärmetauschergehäusen 24, 26 ein Strömungsraum 30 gebildet, welchen das zu erwärmende Medium, also beispielsweise eine Flüssigkeit wie Wasser oder dergleichen, durchströmen kann. Hierzu sind nicht weiter dargestellte Eintritts- und Austrittsöffnungen vorhanden, die eine Durchströmung der Wärmetauscheranordnung 10 ermöglichen.It can be seen in the figure that the heat exchanger assembly 10 comprises a cup-like inner heat exchanger housing 24 and an outer heat exchanger housing 26 surrounding it and substantially likewise pot-shaped. These two pot-shaped heat exchanger housings 24, 26 are fixedly connected to each other in an edge region 28 to produce a substantially tight seal, for example by gluing. In this way, a flow space 30 is formed between the two heat exchanger housings 24, 26, which is the medium to be heated, that is, for example, a liquid such as Water or the like, can flow through. For this purpose, not shown inlet and outlet openings are available, which allow a flow through the heat exchanger assembly 10.

Die aus dem Flammrohr 20 austretenden Verbrennungsabgase treffen auf einen Bodenbereich 32 des inneren Wärmetauschergehäuses 24 auf und werden durch diesen nach radial außen umgelenkt. Durch einen zwischen dem Flammrohr 20 und dem Umfangswandungsbereich 34 des inneren Wärmetauschergehäuses 24 gebildeten Zwischenraum 36 strömen die Verbrennungsabgase dann in Richtung Brennkammergehäuse 14 zurück und verlassen die Anordnung dann im Bereich einer Austrittsöffnung. Beim Strömen entlang des Bodenbereichs 32 und Umfangswandungsbereichs 34 übertragen die Verbrennungsabgase Wärme auf das innere Wärmetauschergehäuse 24, welches wiederum die Wärme an das im Strömungsraum 30 strömende Medium abgeben. Um hier eine effiziente Wechselwirkung zu erlangen, kann das innere Wärmetauschergehäuse 24 an seiner Außenseite mit einer schraubenartigen Vorsprungskonfiguration 38 versehen sein, die einerseits die Wechselwirkungsoberfläche vergrößert und die andererseits dafür sorgt, dass das im Strömungsraum 30 strömende Medium einen wendelartigen Weg nimmt und somit eine vergleichsweise lange Wechselwirkungsstrecke zur Wärmeaufnahme hat. Auch im Bodenbereich 32 können Vorsprünge 40 zur verbesserten Wärmeübertragung ausgebildet sein.The exiting from the flame tube 20 combustion exhaust gases impinge on a bottom portion 32 of the inner heat exchanger housing 24 and are deflected by this radially outward. By a space 36 formed between the flame tube 20 and the peripheral wall portion 34 of the inner heat exchanger housing 24, the combustion exhaust gases then flow back in the direction of the combustion chamber housing 14 and then leave the arrangement in the region of an outlet opening. When flowing along the bottom portion 32 and peripheral wall portion 34, the combustion exhaust gases transfer heat to the inner heat exchanger housing 24, which in turn emits the heat to the medium flowing in the flow space 30. In order to achieve an efficient interaction here, the inner heat exchanger housing 24 may be provided on its outer side with a helical projection configuration 38 which on the one hand increases the interaction surface and on the other hand ensures that the medium flowing in the flow space 30 takes a helical path and thus a comparatively has long interaction path for heat absorption. Also in the bottom region 32, projections 40 may be formed for improved heat transfer.

Um die Wärmetauscheranordnung 10 zur Erwärmung des darin strömenden Mediums möglichst effizient betreiben zu können, sollte das innere Wärmetauschergehäuse 24 aus einem Material aufgebaut sein, das einerseits den hohen Temperaturen der Verbrennungsabgase ausgesetzt werden kann, das andererseits jedoch einen vergleichsweise geringen Wärmeleitwiderstand aufweist. Hier kommen beispielsweise Aluminium oder eine Aluminiumlegierung als geeignete Materialien in Betracht. Bei dem äußeren Wärmetauschergehäuse oder Mantelgehäuse 26 ist gemäß den Prinzipien der vorliegenden Erfindung ein Material zum Aufbau desselben vorgesehen, das dafür sorgt, dass die im zu erwärmenden Medium aufgenommene Wärme im Wesentlichen auch darin enthalten bleibt. Erfindungsgemäß wird dieses äußere Wärmetauschergehäuse 26 aus Magnesium oder einem Magnesium enthaltenden Material, wie z. B. einer Magesiumlegierung, aufgebaut. Dieses Material weist im Vergleich zu Aluminium mit ca. 50 W/mK einen deutlich geringeren Wärmeleitungskoeffizienten auf. Aufgrund dessen wird also im äußeren Wärmetauschergehäuse 26 dem Wärmestrom ein deutlich größerer Widerstand entgegengesetzt, was zur Folge hat, dass die im zu erwärmenden Medium aufgenommene Wärme im Wesentlichen auch darin enthalten bleibt und aus dem Bereich der Wärmetauscheranordnung abgeführt wird.In order to operate the heat exchanger assembly 10 as efficiently as possible for heating the medium flowing therein, the inner heat exchanger housing 24 should be constructed of a material which on the one hand can be exposed to the high temperatures of the combustion exhaust gases, but on the other hand has a comparatively low thermal resistance. Here, for example, aluminum or an aluminum alloy as suitable materials into consideration. In the outer heat exchanger housing or jacket 26, according to the principles of the present invention, a material is provided for constructing the same, which ensures that the heat absorbed in the medium to be heated is essentially also contained therein. According to the invention, this outer heat exchanger housing 26 made of magnesium or a magnesium-containing material, such as. B. a Magesiumlegierung constructed. This material has a significantly lower coefficient of thermal conductivity compared to aluminum with approx. 50 W / mK. Because of this, therefore, a significantly greater resistance is opposed to the heat flow in the outer heat exchanger housing 26, with the result that the heat absorbed in the medium to be heated essentially also remains therein and is removed from the region of the heat exchanger arrangement.

Neben dem Vorteil der geringeren Strahlungsverluste am äußeren Wärmetauschergehäuse 26 durch die angesprochene geringere Wärmeleitfähigkeit hat der Einsatz des Materials Magnesium auch eine deutliche Gewichtsreduzierung im Vergleich zu beispielsweise aus Aluminium aufgebauten Gehäusen zur Folge. Auch kann unter Einsatz dieses Materials dieses äußere Wärmetauschergehäuse mit dünnerer Materialstärke hergestellt werden, wodurch einerseits eine kompakte Bauweise ermöglicht wird und andererseits aufgrund des geringeren Materialvolumens auch der im Vergleich zu Aluminium höhere Preis von Magnesium kompensiert werden kann. Weiterhin zeichnet sich Magnesium oder ein Magnesiumlegierungsmaterial durch eine sehr hohe Korrosionsbeständigkeit und eine im Vergleich zu Aluminium bessere Gießbarkeit aus, was wiederum längere Werkzeugstandzeiten zur Folge hat. Bei der Fertigung von derartigen Gehäusebauteilen aus Magnesium oder einer Magnesiumlegierung können sehr geringe Fertigungstoleranzen erzielt werden. Außerdem zeichnet sich dieses Material durch eine gute Bearbeitbarkeit aus. Schließlich lässt sich auch Magnesium durch Verbindungsverfahren, wie z. B. Verkleben, sehr stabil mit anderen Materialien, wie z. B. Aluminium, verbinden, so dass ein fluiddichter Abschluss des Strömungsraums 30 sichergestellt werden kann.In addition to the advantage of lower radiation losses at the outer heat exchanger housing 26 by the mentioned lower thermal conductivity of the use of the material magnesium also has a significant weight reduction compared to, for example, constructed of aluminum housings result. Also, using this material this outer heat exchanger housing can be made with thinner material thickness, which on the one hand a compact design is made possible and on the other hand, due to the lower material volume and the higher price of magnesium can be compensated compared to aluminum. Furthermore, magnesium or a magnesium alloy material is characterized by a very high corrosion resistance and a better castability compared to aluminum, which in turn results in longer tool life. In the production of such housing components made of magnesium or a magnesium alloy very low manufacturing tolerances can be achieved. In addition, this material is characterized by a good workability. Finally, magnesium can also be prepared by bonding methods, such. B. bonding, very stable with other materials, such. As aluminum, connect, so that a fluid-tight termination of the flow space 30 can be ensured.

Es sei abschließend darauf hingewiesen, dass selbstverständlich die in der Figur dargestellte Ausgestaltung der Wärmetauscheranordnung 10 hinsichtlich des konstruktiven Aufbaus des äußeren Wärmetauschergehäuses 26 und des inneren Wärmetauschergehäuses 24 nur beispielhaft ist. So können selbstverständlich andere Vorsprungsformationen vorgesehen sein, ebenso kann die Formgebung des äußeren Wärmetauschergehäuses an seinem Außenumfangsbereich anders gewählt sein, beispielsweise angepasst an spezielle Bauraumvorgaben eines diese Wärmetauscheranordnung aufnehmenden Fahrzeugs.It should finally be noted that, of course, in the Figure illustrated embodiment of the heat exchanger assembly 10 with respect to the structural design of the outer heat exchanger housing 26 and the inner heat exchanger housing 24 is only exemplary. Thus, of course, other projection formations may be provided, as well as the shape of the outer heat exchanger housing may be selected differently at its outer peripheral region, for example, adapted to specific space requirements of this heat exchanger assembly receiving vehicle.

Claims (4)

  1. A heat-exchanger assembly for a heating appliance, in particular a vehicle heating appliance, comprising an inner heat-exchanger housing (24) which, together with an outer heat-exchanger housing (26), delimits a flow chamber (30) for medium to be heated, characterised in that the outer heat-exchanger housing (26) is formed from magnesium or a material containing magnesium.
  2. A heat-exchanger assembly according to Claim 1, characterised in that the inner heat-exchanger housing (24) and the outer heat-exchanger housing (26) are substantially cup-shaped.
  3. A heat-exchanger assembly according to Claim 2, characterised in that the inner heat-exchanger housing (24) and the outer heat-exchanger housing (26) are joined together by bonding in a peripheral zone (28).
  4. A heat-exchanger assembly according to any one of Claims 1 to 3, characterised in that the inner heat-exchanger housing (26) [sic] is formed from aluminium or a material containing aluminium.
EP04029395.3A 2003-12-11 2004-12-10 Heat exchanger for a heater. Active EP1541935B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04029395T PL1541935T3 (en) 2003-12-11 2004-12-10 Heat exchanger for a heater

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10358016A DE10358016B3 (en) 2003-12-11 2003-12-11 Heat-exchanger system for a motor vehicle's heater has magnesium outer and aluminum inner heat-exchanger housings
DE10358016 2003-12-11

Publications (4)

Publication Number Publication Date
EP1541935A2 EP1541935A2 (en) 2005-06-15
EP1541935A3 EP1541935A3 (en) 2005-11-30
EP1541935B1 true EP1541935B1 (en) 2008-09-10
EP1541935B2 EP1541935B2 (en) 2016-03-02

Family

ID=33547246

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04029395.3A Active EP1541935B2 (en) 2003-12-11 2004-12-10 Heat exchanger for a heater.

Country Status (5)

Country Link
EP (1) EP1541935B2 (en)
JP (1) JP2005170374A (en)
AT (1) ATE408102T1 (en)
DE (2) DE10358016B3 (en)
PL (1) PL1541935T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005054196A1 (en) * 2005-11-14 2007-05-16 Eberspaecher J Gmbh & Co Device for conditioning air to be introduced into a vehicle interior
CN100412461C (en) * 2006-09-28 2008-08-20 山东大学 Heat exchanger for fuel oil heater with heat exchange pipe
DE102011004159A1 (en) 2011-02-15 2012-08-16 J. Eberspächer GmbH & Co. KG Heat exchanger arrangement, in particular for a fuel-powered vehicle heater
RU2483264C2 (en) * 2011-06-17 2013-05-27 Геннадий Александрович Глебов Heat exchanger of liquid heating system
JP6640491B2 (en) * 2015-08-26 2020-02-05 中部電力株式会社 High temperature fluid generator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1737732A (en) * 1928-01-13 1929-12-03 Herbert J Sauvage Heater
US4072542A (en) 1975-07-02 1978-02-07 Kobe Steel, Ltd. Alloy sheet metal for fins of heat exchanger and process for preparation thereof
DE2622045C3 (en) 1976-05-15 1979-10-04 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Heat exchanger
FR2617579B1 (en) * 1987-07-03 1989-12-08 Airelec Ind CENTRAL HEATING BOILER FOR A BLOWER, COMPRISING A DRY FIREPLACE AND A HEATING RESISTANCE
DE3807189A1 (en) * 1988-03-04 1989-09-14 Webasto Ag Fahrzeugtechnik HEATER, ESPECIALLY VEHICLE ADDITIONAL HEATER
DE10207953B4 (en) * 2002-02-25 2005-05-25 J. Eberspächer GmbH & Co. KG Heater, in particular for a vehicle

Also Published As

Publication number Publication date
EP1541935A3 (en) 2005-11-30
DE502004008016D1 (en) 2008-10-23
PL1541935T3 (en) 2009-02-27
JP2005170374A (en) 2005-06-30
ATE408102T1 (en) 2008-09-15
EP1541935A2 (en) 2005-06-15
DE10358016B3 (en) 2005-01-27
EP1541935B2 (en) 2016-03-02

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