EP1988353A2 - Radiator for a motor vehicle - Google Patents
Radiator for a motor vehicle Download PDFInfo
- Publication number
- EP1988353A2 EP1988353A2 EP08005080A EP08005080A EP1988353A2 EP 1988353 A2 EP1988353 A2 EP 1988353A2 EP 08005080 A EP08005080 A EP 08005080A EP 08005080 A EP08005080 A EP 08005080A EP 1988353 A2 EP1988353 A2 EP 1988353A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- tubes
- radiator
- depth
- block
- support
- 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.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2210/00—Heat exchange conduits
- F28F2210/08—Assemblies of conduits having different features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2225/00—Reinforcing means
- F28F2225/04—Reinforcing means for conduits
Definitions
- the invention relates to a radiator for a motor vehicle having the features of the preamble of claim 1.
- a radiator for a motor vehicle which comprises a plurality of parallel individual tubes extending between end plates.
- the end plates have elongated recesses which receive the individual pipe ends.
- coolant box parts are fixed, which cover the pipe ends and serve to divert the flowing through the individual pipes cooling water.
- the block depth of the cooler is defined by the width of the individual tubes used in the tubesheet with the cooling fins running between them (cooling fins). The block depth in one area of the radiator can be smaller with the aid of different deep tubes than in another area, so that the radiator can be adapted to the body conditions.
- the block depth in one area of the radiator is smaller than in another area, so that the radiator can be adapted to the specifications of the body.
- the present invention has for its object to provide an improved embodiment for a cooler, which can be formed in particular with a large tube sheet and a smaller block depth so that the mentioned fatigue strength problems are avoided.
- the radiator according to the invention comprises a block which consists of a plurality of parallel tubes, whereby a coolant flows, wherein two or more spaced tubes have a depth which is greater than the depth of the intervening tubes and are formed as support tubes. Through the pipes with greater depth results in a stiffening of the tube sheets, which improves the fatigue strength of the radiator.
- the first and the last tube to a depth which is greater than the depth of the intermediate tubes, and are formed as support tubes. This design provides the radiator with improved stability when using fewer tubes.
- the cooler is provided at the ends and in the central region of the cooling block with support tubes having a depth show that is greater than the depth of the remaining tubes. This design is used when greater stability is required.
- FIG. 1 a radiator 1 for a motor vehicle according to the prior art is shown schematically.
- the radiator 1 serves the temperature of the incoming Lowering coolant.
- a coolant pump (not shown) pumps the heated coolant through an inlet port 2 and through a plurality of parallel tubes 3 in the radiator. Between the tubes 3 are cooling fins or cooling fins. By heat conduction, the heat is transported to the outer surfaces of the tubes 3 and discharged there via the cooling fins to the air flowing through the radiator 1.
- the tubes 3 with the intervening cooling fins together form a block 4 of the radiator 1.
- End plates (or tubesheets) 5, 6 have elongated passages 7 (cf. Fig. 2a ), which receive the individual pipe ends.
- coolant box parts 8, 9 are fixed, which cover the pipe ends and serve to redirect or distribute the coolant flowing through the individual pipes 3.
- FIG. 2 shows a schematic cross section through a radiator 1, which from that of FIG. 1 illustrated cooler 1 is similar. Shown is only one of the tube sheets 5.
- the depth 10 of the tubes 3 is shown in alignment with an arrow.
- FIG. 2a it can be seen that the depth 10 of the tubes 3 substantially corresponds to the depth of the tube bottom 5.
- the depth 10 corresponds to the flow direction of the air through the radiator. 1
- the radiators 1 are built with a specific block depth for different vehicles. It may happen that in a large tube sheet 5 only short blocks 4 are used, which is made FIG. 2b is apparent. From the FIGS. 2a and 2b it can be seen that the passages 7 for the individual tubes 3 when using a large block ( Fig. 2a ) larger than when using a small block ( Fig. 2b ) are. The size of the tube bottom 5 is always the same. This inevitably causes fatigue problems, since the uneven supporting effect of the block in Fig. 2b due to the heating partly leads to distortion. It does not matter whether the tubes 3 are arranged centrally in the tube plate 5 or arranged displaced on one side (as in FIG. 2b ) are.
- support tubes 15 when using small block dimensions ( Fig. 2b ) used two or more tubes from a larger block to use as a support at the critical points. These tubes are referred to below as support tubes 15.
- Figure 2c shows a preferred embodiment of the cooler 1 according to the invention
- a small block size is used with a large tube sheet 5.
- Three tubes 3 are still exchanged for three larger support tubes 15.
- These support tubes 15 are arranged at the ends and in the central region of the block 4, but a different design is possible.
- the support tubes 15 allow to improve the fatigue strength of the radiator 1, because height loads can be avoided.
- FIG. 2d demonstrates a further embodiment of the cooler according to the invention 1.
- a small block size is used with a large tube sheet 5.
- Five tubes 3 are exchanged for five deeper support tubes 15.
- This design is particularly suitable for radiator 1 with longer bottom parts 5, 6, wherein a larger number of support tubes 15 is advantageous.
- the support tubes 15 are preferably evenly distributed over the cooling block 4. It is understood that more or fewer support tubes 15 can be used as long as the support function is ensured.
- the number of support tubes 15 depends on the size of the cooling block 4. Longer cooling blocks 4 require a plurality of support tubes 15 than short cooling blocks 4.
- the number of support tubes 15 also depends on the ratio between the depth 17 of the tube bottom (or the depth of the support tubes 15) and the depth 16 of the smaller block size. If the depth 16 of the smaller block size is very small compared to the depth 17 of the tube sheet 5, this leads to increased fatigue problems. When using very small block sizes, the use of multiple support tubes 15 is desirable.
- support tubes 15 are placed side by side.
- the first two tubes and the last two tubes can be formed in the block as support tubes 15, which provides increased fatigue strength.
- connection geometries are designed for the largest block size, there are also no difficulties with the package situation of the attachments.
- the use of the larger tubes 15 also has the advantage that the water-side pressure loss in the radiator 1 is lower because more cross section is available.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
Die Erfindung betrifft einen Kühler für ein Kraftfahrzeug mit den Merkmalen des Oberbegriffs des Anspruchs 1.The invention relates to a radiator for a motor vehicle having the features of the preamble of claim 1.
Aus der
In der Druckschrift
Beide, oben genannten Druckschriften beschreiben Kühler, die unterschiedliche Blocktiefen aufweisen, um diesen an die Bedingungen der Karosserie anzugleichen. Dennoch werden segmentweise nur einheitliche Blocktiefen eingesetzt.Both, the above publications describe radiators having different block depths to match the conditions of the body. Nevertheless, only uniform block depths are used in segments.
In Fahrzeugen mit unterschiedlicher Motorisierung ist es heute üblich innerhalb einer Fahrzeugplattform die Kühlleistung durch Abwandlung der Kühler, genauer der Blocktiefe, an den jeweiligen Kühlbedarf anzupassen. Ausgangsbasis bildet dabei immer der größte Kühler also die größte erforderliche Blocktiefe. An diesen Kühler liegen dann lufteintrittsseitig wie -austrittsseitig die Anschlusselemente an, die dann meist für alle Varianten identisch sind (z.B. Kältemittelkondensator oder Lüfterzarge).In vehicles with different motorization, it is customary today within a vehicle platform to adjust the cooling capacity by modifying the radiator, more precisely the block depth, to the respective cooling requirement. The starting point is always the largest cooler so the largest required block depth. At this cooler are then on the air inlet side as-outlet on the connection elements, which are then usually identical for all variants (eg refrigerant condenser or fan cowl).
Da die Kühlerhersteller in Rastern arbeiten, gibt es bestimmte Blocktiefenmaße und es kann vorkommen, dass in großen Rohrböden nur halb so tiefe Blöcke, wie für die Größe möglich wäre, gestellt werden. Hierbei gibt es teilweise erhebliche Dauerfestigkeitsprobleme, da die ungleiche Stützwirkung des Blocks bei Erwärmung zu Verzügen führt. Dabei ist es egal, ob die Rohre im Rohrboden mittig angeordnet oder einseitig verschoben angeordnet sind.As the cooler manufacturers work in grids, there are certain block depth dimensions and it may happen that only half as deep blocks as would be possible for the size in large tube sheets. There are sometimes considerable fatigue problems, since the uneven support effect of the block leads to distortion when heated. It does not matter whether the tubes are arranged centrally in the tubesheet or arranged displaced on one side.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, für einen Kühler eine verbesserte Ausführungsform anzugeben, die insbesondere mit einem großen Rohrboden und einer kleineren Blocktiefe so ausgebildet werden kann, dass die genannten Dauerfestigkeitsprobleme vermieden werden.The present invention has for its object to provide an improved embodiment for a cooler, which can be formed in particular with a large tube sheet and a smaller block depth so that the mentioned fatigue strength problems are avoided.
Erfindungsgemäß wird dieses Problem durch einen Kühler mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen des erfindungsgemäßen Kühlers ergeben sich aus den abhängigen Ansprüchen.According to the invention this problem is solved by a cooler with the features of claim 1. Advantageous developments of the cooler according to the invention will become apparent from the dependent claims.
Der erfindungsgemäße Kühler umfasst einen Block, der aus mehreren parallelen Rohren besteht, wodurch ein Kühlmittel fließt, wobei zwei oder mehr beabstandete Rohre eine Tiefe aufweisen, die größer als die Tiefe der dazwischen liegenden Rohre ist und als Stützrohre ausgebildet sind. Durch die Rohre mit größerer Tiefe ergibt sich eine Aussteifung der Rohrböden, was die Dauerfestigkeit des Kühlers verbessert.The radiator according to the invention comprises a block which consists of a plurality of parallel tubes, whereby a coolant flows, wherein two or more spaced tubes have a depth which is greater than the depth of the intervening tubes and are formed as support tubes. Through the pipes with greater depth results in a stiffening of the tube sheets, which improves the fatigue strength of the radiator.
In vorteilhafter Ausgestaltung der Erfindung weisen das erste und das letzte Rohr eine Tiefe auf, die größer als die Tiefe der dazwischen liegenden Rohre ist, und als Stützrohre ausgebildet sind. Diese Gestaltung liefert dem Kühler verbesserte Stabilität beim Einsatz weniger Rohre.In an advantageous embodiment of the invention, the first and the last tube to a depth which is greater than the depth of the intermediate tubes, and are formed as support tubes. This design provides the radiator with improved stability when using fewer tubes.
In einer weiteren vorteilhaften Ausgestaltung der Erfindung ist der Kühler an den Enden und im mittleren Bereich des Kühlblocks mit Stützrohre versehen, die eine Tiefe aufzeigen, die größer als die Tiefe der restlichen Rohre ist. Diese Gestaltung wird benutzt, wenn eine höhere Stabilität erforderlich ist.In a further advantageous embodiment of the invention, the cooler is provided at the ends and in the central region of the cooling block with support tubes having a depth show that is greater than the depth of the remaining tubes. This design is used when greater stability is required.
Weitere Vorteile und Ausgestaltungen der Erfindung ergeben sich aus der nachfolgenden Beschreibung und den beiliegenden Zeichnungen.Further advantages and embodiments of the invention will become apparent from the following description and the accompanying drawings.
Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It is understood that the features mentioned above and those yet to be explained below can be used not only in the particular combination given, but also in other combinations or in isolation, without departing from the scope of the present invention.
Die Erfindung ist anhand mehrerer Ausführungsbeispiele in den Zeichnungen schematisch dargestellt und wird im Folgenden unter Bezugnahme auf die Zeichnungen ausführlich beschrieben.
-
Figur 1 zeigt in schematischer Darstellung einen Kühler gemäß dem Stand der Technik, -
Figur 2a zeigt einen Schnitt durch einen Kühler gemäß dem Stand der Technik, -
Figur 2b zeigt einen Schnitt durch einen anderen Kühler gemäß dem Stand der Technik, -
Figur 2c zeigt in schematischer Darstellung einen Querschnitt durch einen Kühler gemäß einer Ausführungsform der Erfindung, -
Figur 2c zeigt in schematischer Darstellung einen Querschnitt durch einen Kühler gemäß einer weiteren Ausführungsform der Erfindung.
-
FIG. 1 shows a schematic representation of a cooler according to the prior art, -
FIG. 2a shows a section through a cooler according to the prior art, -
FIG. 2b shows a section through another cooler according to the prior art, -
Figure 2c shows a schematic representation of a cross section through a cooler according to an embodiment of the invention, -
Figure 2c shows a schematic representation of a cross section through a radiator according to another embodiment of the invention.
In
Aus
Da die Kühlerhersteller in Rastern arbeiten, werden die Kühler 1 mit einer bestimmten Blocktiefe für unterschiedliche Fahrzeuge gebaut. Es kann dabei vorkommen, dass in einem großen Rohrboden 5 nur kurze Blöcke 4 eingesetzt werden, was aus
Erfindungsgemäß werden deshalb beim Einsatz von kleinen Blockmaßen (
Es ist auch vorstellbar, dass mehrere Stützrohre 15 nebeneinander aufgestellt sind. So können die erste zwei Rohre und die letzte zwei Rohre im Block als Stützrohre 15 ausgebildet werden, was erhöhte Dauerfestigkeit liefert.It is also conceivable that a plurality of
Da die Anschlussgeometrien auf das größte Blockmaß ausgelegt sind, gibt es auch keine Schwierigkeiten mit der Package-Situation der Anbauteile.Since the connection geometries are designed for the largest block size, there are also no difficulties with the package situation of the attachments.
Die Verwendung der größeren Rohre 15 weist zudem den Vorteil auf, dass der wasserseitige Druckverlust im Kühler 1 geringer ausfällt, da mehr Querschnitt zur Verfügung steht.The use of the
Die vorhergehende Beschreibung der Ausführungsbeispiele gemäß der vorliegenden Erfindung dient nur zu illustrativen Zwecken und nicht zum Zwecke der Beschränkung der Erfindung. Insbesondere im Hinblick auf einige bevorzugte Ausführungsbeispiele entnimmt ihr der Fachmann, dass verschiedene Änderungen und Modifikationen in Gestalt und Einzelheiten gemacht werden können, ohne von dem Gedanken und Umfang der Erfindung abzuweichen. Dementsprechend soll die Offenbarung der vorliegenden Erfindung nicht einschränkend sein. Stattdessen soll die Offenbarung der vorliegenden Erfindung den Umfang der Erfindung veranschaulichen, der in den nachfolgenden Ansprüchen dargelegt ist.The foregoing description of the embodiments according to the present invention is for illustrative purposes only, and not for the purpose of limiting the invention. With particular reference to some preferred embodiments, those skilled in the art will appreciate that various changes and modifications in form and detail may be made without departing from the spirit and scope of the invention. Accordingly, the disclosure of the present invention is not intended to be limiting. Instead, the disclosure of the present invention is intended to illustrate the scope of the invention, which is set forth in the following claims.
Claims (9)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007020948A DE102007020948B3 (en) | 2007-05-04 | 2007-05-04 | Radiator for a motor vehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1988353A2 true EP1988353A2 (en) | 2008-11-05 |
EP1988353A3 EP1988353A3 (en) | 2014-01-15 |
Family
ID=39673242
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08005080.0A Withdrawn EP1988353A3 (en) | 2007-05-04 | 2008-03-19 | Radiator for a motor vehicle |
Country Status (3)
Country | Link |
---|---|
US (1) | US20080271879A1 (en) |
EP (1) | EP1988353A3 (en) |
DE (1) | DE102007020948B3 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009043153A1 (en) | 2009-09-26 | 2011-04-07 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Motor vehicle radiator, has set of pipes running with smooth flow surface and contoured flow surface between inlet and outlet, and cooling lamellas or cooling fins positioned between pipes, where coolant flow through pipes |
WO2015040746A1 (en) * | 2013-09-20 | 2015-03-26 | 三菱電機株式会社 | Heat exchanger, air conditioner device using said heat exchanger, and method for producing said heat exchanger |
SE1450473A1 (en) * | 2014-04-22 | 2015-10-23 | Titanx Engine Cooling Holding Ab | Heat exchanger comprising a core of pipes |
US20160069595A1 (en) * | 2014-09-05 | 2016-03-10 | Samsung Electronics Co., Ltd. | Refrigerator |
CN106123666A (en) * | 2016-08-11 | 2016-11-16 | 上海贝洱热系统有限公司 | Compact reinforced main leaf for automobile radiators |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5236336A (en) | 1990-12-05 | 1993-08-17 | Sanden Corporation | Heat exchanger |
FR2771481A1 (en) | 1997-11-24 | 1999-05-28 | Valeo Thermique Moteur Sa | Profiled heat exchanger for motor vehicle engine |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2070223A (en) * | 1937-02-09 | Heater | ||
US2055549A (en) * | 1934-05-18 | 1936-09-29 | Modine Mfg Co | Heat exchange device |
US2264820A (en) * | 1939-05-17 | 1941-12-02 | Fred M Young | Combination oil and water cooler |
DE2549784C2 (en) * | 1975-11-06 | 1984-12-20 | Bergwerksverband Gmbh, 4300 Essen | Fluidized bed gas generator with heat supply, in particular nuclear reactor heat, from the outside |
JPS5958631U (en) * | 1982-10-13 | 1984-04-17 | 本田技研工業株式会社 | motorcycle heat exchanger |
FR2546287B1 (en) * | 1983-05-18 | 1988-02-05 | Sueddeutsche Kuehler Behr | HEAT EXCHANGER, PARTICULARLY FOR HEATING THE INTERIOR OF PASSENGER CARS |
DE3616307A1 (en) * | 1986-05-14 | 1987-11-19 | Man Nutzfahrzeuge Gmbh | COOLER, ESPECIALLY FOR INTERNAL COMBUSTION ENGINES |
US5555930A (en) * | 1994-06-24 | 1996-09-17 | Behr Heat Transfer, Inc. | Heat exchanger assembly with structural side passageways |
JPH08338670A (en) * | 1995-06-12 | 1996-12-24 | Mitsubishi Heavy Ind Ltd | Heat transfer tube for heat exchanger |
FR2746493B1 (en) * | 1996-03-22 | 1998-05-15 | Valeo Thermique Moteur Sa | MANIFOLD FOR A HEAT EXCHANGER, ESPECIALLY A MOTOR VEHICLE |
JPH116693A (en) * | 1997-04-23 | 1999-01-12 | Denso Corp | Heat-exchanger for air-conditioner in vehicle |
US6793012B2 (en) * | 2002-05-07 | 2004-09-21 | Valeo, Inc | Heat exchanger |
US7337832B2 (en) * | 2003-04-30 | 2008-03-04 | Valeo, Inc. | Heat exchanger |
-
2007
- 2007-05-04 DE DE102007020948A patent/DE102007020948B3/en not_active Expired - Fee Related
-
2008
- 2008-03-19 EP EP08005080.0A patent/EP1988353A3/en not_active Withdrawn
- 2008-05-01 US US12/113,246 patent/US20080271879A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5236336A (en) | 1990-12-05 | 1993-08-17 | Sanden Corporation | Heat exchanger |
FR2771481A1 (en) | 1997-11-24 | 1999-05-28 | Valeo Thermique Moteur Sa | Profiled heat exchanger for motor vehicle engine |
Also Published As
Publication number | Publication date |
---|---|
US20080271879A1 (en) | 2008-11-06 |
DE102007020948B3 (en) | 2008-11-13 |
EP1988353A3 (en) | 2014-01-15 |
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