EP2810009A1 - Radiateur de refroidissement pour vehicule, notamment automobile - Google Patents
Radiateur de refroidissement pour vehicule, notamment automobileInfo
- Publication number
- EP2810009A1 EP2810009A1 EP13705741.0A EP13705741A EP2810009A1 EP 2810009 A1 EP2810009 A1 EP 2810009A1 EP 13705741 A EP13705741 A EP 13705741A EP 2810009 A1 EP2810009 A1 EP 2810009A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tubes
- fluid
- corrugations
- tube
- vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- 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
- F28D1/05358—Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators
-
- 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
- F28D1/03—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 plate-like or laminated conduits
- F28D1/0391—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 plate-like or laminated conduits a single plate being bent to form one or more conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/06—Tubular elements of cross-section which is non-circular crimped or corrugated in cross-section
-
- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
- F28D2021/0091—Radiators
- F28D2021/0094—Radiators for recooling the engine coolant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F2001/027—Tubular elements of cross-section which is non-circular with dimples
Definitions
- the invention relates to a cooling radiator for a vehicle, in particular an automobile. It may in particular be radiators for cooling the engine of the vehicle.
- Cooling radiators are known comprising a bundle of parallel tubes and two collectors (or manifolds) in which the corresponding ends of the tubes are connected in a fixed and sealed manner.
- a cooling fluid can thus flow through the tubes and exchange heat with an external air flow passing between the tubes.
- the radiators are placed on the front of the vehicle and the air flow reaches the radiator passing through the calender.
- the invention proposes for this purpose a cooling radiator for a vehicle, in particular a motor vehicle, comprising a beam enabling the exchange of heat between a first and a second fluid, said beam comprising at least one row of parallel tubes for the flow of the first fluid, said tubes being provided flat and spaced apart from one another, said no tubes, in a first direction, said tubes being provided with corrugations configured to disturb the flow of said first fluid and said tube pitch being between 5 and 8 mm, particularly between 5.5 and 7.5 mm, even more particularly between 6 and 7 mm.
- flat tube is meant a tube comprising two large parallel flat faces connected by lateral sides or radii, the total height of the tube, that is to say, its dimension in the direction perpendicular to the large flat faces, being less than the total width of the tube, that is to say its dimension in the direction perpendicular to the total height of the tube and the longitudinal axis of the tube.
- a particularly advantageous embodiment of the invention is based on the link made by the applicant between the operating characteristics of the pumps used in the cooling loops and the characteristics of the radiator for optimizing their operation.
- FIG. 1 illustrates in this regard the overall efficiency "e” of a pump as a function of the flow "D” of fluid that it generates. It is observed that the efficiency begins to grow until a certain flow rate before decreasing. In other words, there is a flow rate value for which the efficiency of the pump is maximum, here about 4000 liters per hour.
- FIG. 2 illustrates the pressure "P" of the fluid leaving the pump as a function of the flow "D" that it generates. It is observed that the pressure decreases with the flow rate.
- the pressure drop due to the other circuit components such as the engine or the circulation channels between the engine and the cooling radiator being known or specified, it is possible to evaluate a corresponding pressure drop for the radiator.
- a parameter influencing in particular the pressure drop generated by a radiator as defined above is the profile of the tube and even more specifically the internal height h T of the tube.
- Internal height means the distance between the inner walls of the flat faces of the tube or the height of the fluid circulation blade in the tube, such a distance being measured at a portion of the walls not exhibiting corrugations.
- the curves 3 and 4 illustrate in this way the relationship between this parameter and, respectively, the outlet pressure of the pump and the overall efficiency of the latter.
- the invention thus proposes a radiator in which the tubes have an internal height of between 0.6 and 1.5 mm, more particularly between 0.8 and 1.2 mm. It can be seen in FIG. 4 that the pump operates optimally in this value range.
- a material thickness of the tubes is less than or equal to 270 ⁇ m, in particular 230 ⁇ m, more particularly 200 ⁇ m,
- the corrugations are configured to represent 10 to 50% of the section of the tubes
- the corrugations are configured to represent less than 10% of the internal volume of the tubes
- the tubes have a width of between 10 and 45 mm
- the corrugations come from material of a wall of the tubes
- the corrugations have a free end
- said tubes are formed by folding a sheet of material.
- Figure 1 already mentioned illustrates the overall efficiency of a pump as a function of the fluid flow generated by it.
- FIG. 2 already mentioned illustrates the pressure of the fluid at the outlet of the pump of FIG. 1 as a function of the flow of fluid generated by it.
- Figure 3 already mentioned takes Figure 2 by associating it with the internal height of a tube of a cooling radiator.
- FIG. 4 already mentioned, repeats FIG. 1, associating it with the same characteristic as that used in FIG.
- Figure 5 is an overall view of a cooling radiator according to the invention.
- FIG. 6 is a cross-sectional view of a tube of the exchanger of FIG. 5.
- the invention relates to a cooling radiator 1 for a vehicle, in particular an automobile, comprising a beam enabling the exchange of heat between a first and a second fluid.
- the first fluid consists, for example, of a cooling fluid such as a mixture of water and glycol.
- the second fluid consists, for example, of air.
- Said radiator may be configured to be placed on the front face of a motor vehicle so as to be swept by a flow of ambient air passing through a radiator grille of the vehicle.
- Said beam comprises a row of tubes 2, parallel to each other, for the flow of the first fluid.
- Said tubes 2 extend in a longitudinal direction marked A in the figure.
- Each tube 2 here has two longitudinal ends 2A fixedly and sealingly connected to manifolds 3, 4 of the radiator for the circulation of said first fluid through said radiator.
- Said manifolds 3, 4 comprise, for example, a header plate and a lid defining an interior volume of the box.
- fastening flanges not shown. They may also comprise, respectively, inlet and outlet pipes 5 and 6.
- the collector plates of said collector boxes 3, 4 are, for example metal, including aluminum or aluminum alloys.
- the covers are, for example, plastic and crimped on the collector plates.
- the collector plates and lids are both metal, especially aluminum or aluminum alloys.
- interlayers 7 increasing the heat exchange surface between the fluid flowing in the tubes 2 and the air flowing between said tubes 2.
- the tubes 2 and the spacers 7 are here stacked alternatively in the direction B, perpendicular to the axis A in the plane of the figure.
- the radiator may also include lateral cheeks 8 protecting the beam on either side of the stack of tubes 2 and tabs 7.
- said tubes 2 are flat.
- the tubes 2 comprise two large flat faces 10a, 10b, parallel, connected by lateral sides or radii 12.
- the height of the tubes 2 that is to say that is, their dimension in the direction perpendicular to the planar faces 10a, 10b, which corresponds to the stacking direction B of the tubes 2 and the spacers 7, is smaller than the width L T of said tubes 2, that is to say their dimension in the direction perpendicular to the direction B and the longitudinal axis A of the tubes 2, the latter being orthogonal to the plane of the figure.
- the tubes 2 are, for example, of the type comprising a strip 14, folded on itself so as to define a plurality of channels 16a, 16b for circulating the fluid.
- Said tubes 2 may in particular have a configuration in which said strip 14 has legs 18a, 18b joining a first 10a to the second 10b of said flat faces of the tube so as to define said channels 16a, 16b.
- said strip 14 has legs 18a, 18b joining a first 10a to the second 10b of said flat faces of the tube so as to define said channels 16a, 16b.
- said legs 18a, 18b have, for example, a base formed of a bent portion 20 of the strip 14 connecting them to the first planar face 10a. They are extended here against each other to finish against the second flat face 10b, especially via their edge. Here they define two channels 16a, 16b of substantially equal section. In other words, said legs 18a, 18b are located along a median plane of the tubes 2. The latter substantially have a substantially B-shaped profile in this way.
- Such tubes 2 are sealed, for example, by soldering, the brazing of the tubes 2 of the same exchanger taking place, in particular, simultaneously with the brazing of all the metal parts of the exchanger.
- said sheet of material 14 is, for example, aluminum or aluminum alloy.
- said tubes 2 are provided with corrugations 22 configured to disrupt the flow of said first fluid.
- Corrugations 22 means shapes having a protruding profile towards the channel or channels 16a, 16b defined by said tubes 2. In Figure 6, some of said corrugations 22 are in the plane of section while others are located behind.
- the corrugations 22 may be derived from material of a wall of the tube, that is to say, here the strip 14. They are formed, for example, by stamping said strip 14. They are located, in particular, at the planar faces 10a, 10b of the tubes. Said corrugations 22 have, for example, a free end (26). By this is meant that they are not in contact with the opposite planar face 10a, 10b or with any other of said corrugations 22.
- said corrugations 22 are configured, for example, to represent 10 to 50% of the section of the tube. In other words, either:
- the Sfd / Stl ratio is between 10 and 50%, preferably between 10 and 40%, and more preferably between 20 and 40%. Such a relationship is verified, for example, throughout the tube or at least for all sections of the tube cutting one or corrugations.
- said corrugations 22 may still be configured to represent less than 10% of the internal volume of the tube. In other words, either:
- the ratio Vtd / Vt1 is less than 0.1, preferably 0.05.
- said tubes 2 are further spaced apart in the direction B of a pitch Tp (visible in Figure 5), said no tubes, between 5 and 8 mm.
- Said tube pitch may more particularly be between 5.5 and 7.5 mm, and even more particularly between 6 and 7 mm.
- tubes 2 having an internal height h T of between 0.6 and 1.5 mm, more particularly between 0.8 and 1.2 mm.
- internal height is meant as already said the distance between the inner walls 24a, 24b of the flat faces 10a, 10b of the tubes 2 or the blade height of circulation of the first fluid in said tubes 2, such a distance being measured at the part of the walls showing no corrugations 22.
- Said tubes 2 may have a material thickness of less than 270 .mu.m, more particularly 230 .mu.m, more particularly 200 .mu.m.
- the tubes 2 thus have, for example, a width L T of between 10 and 40 mm, in particular between 14 and 34 mm. More particularly, the tubes 2 may have:
- corrugations 22 may have on the surface of the tube 2 any possible distributions or shapes. They may thus, for example, be arranged in rows or staggered on the same flat face 10a, 10b and / or a flat face 10a, 10b to another. They may also be circular or elongated sections, forming or not at the same angle or different angles relative to the longitudinal axis A of the tubes.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL13705741T PL2810009T3 (pl) | 2012-02-03 | 2013-02-01 | Chłodnica do pojazdu, w szczególności do pojazdu samochodowego |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1251015A FR2986472B1 (fr) | 2012-02-03 | 2012-02-03 | Radiateur de refroidissement pour vehicule, notamment automobile |
PCT/EP2013/052084 WO2013113900A1 (fr) | 2012-02-03 | 2013-02-01 | Radiateur de refroidissement pour vehicule, notamment automobile |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2810009A1 true EP2810009A1 (fr) | 2014-12-10 |
EP2810009B1 EP2810009B1 (fr) | 2018-08-22 |
Family
ID=47748584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13705741.0A Revoked EP2810009B1 (fr) | 2012-02-03 | 2013-02-01 | Radiateur de refroidissement pour vehicule, notamment automobile |
Country Status (7)
Country | Link |
---|---|
US (1) | US9671169B2 (fr) |
EP (1) | EP2810009B1 (fr) |
JP (2) | JP2015505605A (fr) |
CN (1) | CN104169669A (fr) |
FR (1) | FR2986472B1 (fr) |
PL (1) | PL2810009T3 (fr) |
WO (1) | WO2013113900A1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017179588A1 (fr) * | 2016-04-11 | 2017-10-19 | カルソニックカンセイ株式会社 | Échangeur de chaleur |
WO2019025719A1 (fr) * | 2017-07-31 | 2019-02-07 | Valeo Systemes Thermiques | Tube pour echangeur de chaleur avec dispositif de perturbation |
DE102017222742A1 (de) * | 2017-12-14 | 2019-06-19 | Hanon Systems | Rohr, insbesondere Flachrohr für einen Abgaskühler und Abgaskühler |
JP7181725B2 (ja) * | 2018-08-09 | 2022-12-01 | マレリ株式会社 | 熱交換チューブ及び熱交換器 |
DE102019000723A1 (de) * | 2019-01-31 | 2020-08-06 | Hydac Cooling Gmbh | Kühler |
DE102020202313A1 (de) * | 2020-02-24 | 2021-08-26 | Mahle International Gmbh | Wärmeübertrager |
FR3141481A1 (fr) | 2022-10-26 | 2024-05-03 | Ferco | Système de verrouillage pour une menuiserie coulissante |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4470452A (en) * | 1982-05-19 | 1984-09-11 | Ford Motor Company | Turbulator radiator tube and radiator construction derived therefrom |
KR940010978B1 (ko) * | 1988-08-12 | 1994-11-21 | 갈소니꾸 가부시끼가이샤 | 멀티플로우형의 열교환기 |
JP3355824B2 (ja) * | 1994-11-04 | 2002-12-09 | 株式会社デンソー | コルゲートフィン型熱交換器 |
US5730213A (en) * | 1995-11-13 | 1998-03-24 | Alliedsignal, Inc. | Cooling tube for heat exchanger |
JPH1194481A (ja) * | 1997-09-25 | 1999-04-09 | Gac Kk | 熱交換器用チューブおよび熱交換器 |
SE521816C2 (sv) * | 1999-06-18 | 2003-12-09 | Valeo Engine Cooling Ab | Fluidtransportrör samt fordonskylare med sådant |
JP2001174177A (ja) * | 1999-12-21 | 2001-06-29 | Denso Corp | 車両用ラジエータ |
JP4501286B2 (ja) * | 2000-02-25 | 2010-07-14 | 株式会社デンソー | 熱交換器 |
DE10127084B4 (de) | 2000-06-17 | 2019-05-29 | Mahle International Gmbh | Wärmeübertrager, insbesondere für Kraftfahrzeuge |
US20050045314A1 (en) * | 2004-08-26 | 2005-03-03 | Valeo, Inc. | Aluminum heat exchanger and method of making thereof |
US7073570B2 (en) * | 2003-09-22 | 2006-07-11 | Visteon Global Technologies, Inc. | Automotive heat exchanger |
EP1682842B1 (fr) | 2003-10-28 | 2014-06-04 | Behr GmbH & Co. KG | Canal d'ecoulement pour dispositif de transfert de chaleur et dispositif de transfert de chaleur comprenant de tels canaux d'ecoulement |
US7182128B2 (en) * | 2005-03-09 | 2007-02-27 | Visteon Global Technologies, Inc. | Heat exchanger tube having strengthening deformations |
JP2006266528A (ja) * | 2005-03-22 | 2006-10-05 | T Rad Co Ltd | 熱交換器用偏平チューブ |
JP2006317117A (ja) * | 2005-05-16 | 2006-11-24 | Denso Corp | 熱交換器 |
US20100243225A1 (en) * | 2006-01-19 | 2010-09-30 | Werner Zobel | Flat tube, flat tube heat exchanger, and method of manufacturing same |
JP2007333254A (ja) | 2006-06-13 | 2007-12-27 | Calsonic Kansei Corp | 熱交換器用チューブ |
KR101250771B1 (ko) * | 2006-09-21 | 2013-04-04 | 한라공조주식회사 | 열교환기 |
FR2924794B1 (fr) * | 2007-12-11 | 2015-12-11 | Valeo Systemes Thermiques | Tubes multicanaux pour un echangeur de chaleur brase |
US20100116481A1 (en) * | 2008-11-12 | 2010-05-13 | Evans Timothy V | Heat Exchanger |
DE102009007619A1 (de) * | 2009-02-05 | 2010-08-12 | Behr Gmbh & Co. Kg | Wärmeübertrager, insbesondere Heizkörper für Kraftfahrzeuge |
-
2012
- 2012-02-03 FR FR1251015A patent/FR2986472B1/fr not_active Expired - Fee Related
-
2013
- 2013-02-01 WO PCT/EP2013/052084 patent/WO2013113900A1/fr active Application Filing
- 2013-02-01 EP EP13705741.0A patent/EP2810009B1/fr not_active Revoked
- 2013-02-01 PL PL13705741T patent/PL2810009T3/pl unknown
- 2013-02-01 CN CN201380012171.XA patent/CN104169669A/zh active Pending
- 2013-02-01 JP JP2014555231A patent/JP2015505605A/ja active Pending
- 2013-02-01 US US14/375,846 patent/US9671169B2/en active Active
-
2018
- 2018-01-04 JP JP2018000299A patent/JP2018087684A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2986472B1 (fr) | 2014-08-29 |
US20150041106A1 (en) | 2015-02-12 |
FR2986472A1 (fr) | 2013-08-09 |
CN104169669A (zh) | 2014-11-26 |
US9671169B2 (en) | 2017-06-06 |
PL2810009T3 (pl) | 2019-03-29 |
WO2013113900A1 (fr) | 2013-08-08 |
JP2018087684A (ja) | 2018-06-07 |
JP2015505605A (ja) | 2015-02-23 |
EP2810009B1 (fr) | 2018-08-22 |
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