EP0590945A1 - Vehicle radiator - Google Patents
Vehicle radiator Download PDFInfo
- Publication number
- EP0590945A1 EP0590945A1 EP93307701A EP93307701A EP0590945A1 EP 0590945 A1 EP0590945 A1 EP 0590945A1 EP 93307701 A EP93307701 A EP 93307701A EP 93307701 A EP93307701 A EP 93307701A EP 0590945 A1 EP0590945 A1 EP 0590945A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tubes
- heat exchanger
- exchanger assembly
- row
- liquid
- 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
Images
Classifications
-
- 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
- F28F1/025—Tubular elements of cross-section which is non-circular with variable shape, e.g. with modified tube ends, with different geometrical features
-
- 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
- F28D1/05383—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits
Abstract
Description
- The present invention relates to a vehicle radiator consisting of a heat exchanger assembly comprising at least two rows of flat liquid-conducting tubes and fin units which are arranged between each pair of tubes in the respective row and adapted to guide air flowing through the heat exchanger assembly in the transverse direction of the rows of tubes; an inlet tank connected to a first end of the heat exchanger assembly for receiving heated liquid from the engine block of the vehicle and for distributing this liquid to the tubes; and an outlet tank connected to a second end of the heat exchanger assembly for receiving cooled liquid from the tubes and discharging it into the engine block, said inlet and outlet tanks each having a connecting plate with a number of connecting holes for the tubes.
- Current trends in the design of vehicles, especially automobiles and trucks, are resulting in reduced space in the engine compartment. The room available for the various components is reduced. Some components can be made smaller for adaptation to the reduced space. Other components cannot be reduced in size by down-scaling, since the capacity of the component is then decreased. A component of this type is the vehicle radiator.
- A known type of vehicle radiator is illustrated diagrammatically in Figure 1 of the accompanying drawings. The radiator consists of a
heat exchanger assembly 21, aninlet tank 22 and an outlet tank (not shown). The inlet tank in Figure 1 is represented by its connectingplate 24. The heat exchanger assembly consists of two rows offlat tubes 25 and, alternating with the tubes, interposedfin units 26. The construction of the fin units and the function of the radiator are well known to the person skilled in the art and will not be described in detail below. The tube ends are inserted into and soldered around the edges of holes punched out of the connecting plates. - This known radiator has a number of disadvantages. First, the tube ends inserted in the inlet tank and outlet tank, respectively, create turbulence and slow the flow of heated water from the cooling channels in the engine block to the tubes in the heat exchanger assembly. Second, the connection between tube and connecting plate is weak. Third, the necessary distance between the rows of holes in the connecting plates creates a
gap 27 through the heat exchanger assembly. No heat transfer takes place in this gap. For practical reasons, however, the fin units are allowed to extend across the gap too, which creates an unnecessary pressure drop for the air flowing through. - The principal object of the invention is to eliminate the abovementioned disadvantages of known radiator constructions.
- A further object is to provide a radiator which is more efficient than the known radiator construction and which at the same time takes up less space in the engine compartment.
- These objects are achieved with a vehicle radiator of the kind set out in the introduction, in which the connecting plates are provided at each hole with a connecting piece projecting from the tank; the ends of the tubes have a widened portion for receiving the corresponding connecting pieces of the connecting plates; and the tubes of the first row are disposed close to the corresponding tubes of the second row along the tube portion located between the widened portions of the tube.
- One advantage of the radiator according to the invention is that the connection between the heat exchanger assembly and the connecting plates can be made stronger by virtue of the insertion of the connecting pieces into the tube ends. The strength of the construction can be increased further if the tubes of the first row are connected to the corresponding tubes of the second row in those tube portions, in each row, which bear against each other.
- Another advantage of the radiator according to the invention is that the end of one tube is at all times in the same plane as the corresponding ends of the other tubes. This gives a radiator construction with a well-defined distance between the connecting plates, even if the flat tubes have different lengths prior to the widening of the ends of the tubes. The reason for this is that the widening of the tube ends shortens the tube from, for example, 500 mm to 498 mm. Any differences in the original tube length are eliminated during the widening of the tube ends. The widened portions "take up" these differences in tube length and guarantee that the finished tubes have the same length.
- The invention will now be described in detail below with the aid of an embodiment given by way of example only and with reference to the attached drawings, in which
- Fig. 1 shows diagrammatically a known vehicle radiator.
- Fig. 2 shows in an exploded view, and diagrammatically, a vehicle radiator according to the invention.
- Fig. 2 shows a heat exchanger assembly 1 of a vehicle radiator constructed according to the invention. The heat exchanger assembly comprises, like the heat exchanger assembly in conventional vehicle radiators described above, two
connecting plates 2, 3, of which the one connecting plate 2 constitutes one of the delimiting surfaces of an inlet tank (not shown), while the second connectingplate 3 constitutes one of the delimiting surfaces of an outlet tank (not shown). Inserted between the connectingplates 2, 3 are two essentially parallel rows offlat tubes 9, designed to cool and convey the flowing water from the one tank to the other. The connecting plates are provided with two essentially parallel rows ofholes 5 which run in the longitudinal direction of the connecting plate, and which are situated at a distance from each other in the transverse and the longitudinal direction. Associated with the holes are connecting pieces 6 directed outwardly from the connecting plate in the direction toward the tubes situated between the plates. The flat tubes arranged between the plates are widened at theirrespective end portions 7 to produce a larger inlet and outlet area to and from the heat exchanger assembly 1, and to produce a more gradual transition between the inlet and outlet tanks, respectively, and the tubes. - However, the tube ends have a smaller dimension that the rest of the flattened tube, as seen in the main plane of the tube. The tube ends are widened so much and are given a shape adapted to the connecting pieces such that the tube ends can be pushed onto the connecting pieces and soldered onto these in order to form a tight and stable connection between the connecting plate and the tubes. The tubes of the one row bear against the tubes of the second row along essentially the whole flat portion of the tubes. The tubes are preferably soldered together at this bearing
portion 10 in order to create a further improvement in the stability and strength of the construction. - Alternating with the
tubes 9 in each row arefin units 8, which are of a conventional type, for guiding the air flow which is used for cooling the liquid situated in the tubes. - The embodiment described above in accordance with the present invention has a number of advantages compared to previously known vehicle radiators.
- The contact between the tubes, arranged adjacent to one another in the transverse direction, along essentially the whole of their length, gives the vehicle radiator a smaller thickness, which, according to calculations, gives a total weight reduced by approximately 12% as a result of a reduced amount of material in tank, connecting plate and fin unit. In addition, the pressure drop in the air flow is reduced by approximately 18% as a result of the reduced thickness.
- The design of connecting plates with connecting pieces leads to a reduced pressure drop in the water flowing through the radiator, since the tubes do not project into the tank. The connection between the tube ends and the connecting pieces is also strengthened by virtue of the fact that soldering can be carried out over a larger surface.
Claims (2)
- A vehicle radiator consisting of a heat exchanger assembly comprising at least two rows of flat liquid-conducting tubes and fin units which are arranged between each pair of tubes in the respective row and are adapted to guide air flowing through the heat exchanger assembly in the transverse direction of the rows of tubes; an inlet tank connected to a first end of the heat exchanger assembly for receiving heated liquid from the engine block of the vehicle and for distributing this liquid to the tubes; and an outlet tank connected to a second end of the heat exchanger assembly for receiving cooled liquid from the tubes and discharging it into the engine block, said inlet and outlet tanks each having a connecting plate formed with a corresponding number of connecting holes for the tubes, characterised in that said connecting plates (2, 3) are provided at the location of each hole (5) with a connecting piece (6) projecting from the tank; the ends of the tubes (9) have a widened portion (7) for receiving the corresponding connecting pieces of the connecting plates; and in that the tubes of the first row are disposed close to the corresponding tubes of the second row along the tube portions located between the widened tube end portions.
- A vehicle radiator as claimed in Claim 1, characterised in that the tubes of the first row bear against the corresponding tubes of the second row and are secured together at their points of contact.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9202819A SE469912C (en) | 1992-09-30 | 1992-09-30 | Vehicle cooler with flat pipes in rows where the pipes have widened end portions and the adjacent row of touching portions |
SE9202819 | 1992-09-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0590945A1 true EP0590945A1 (en) | 1994-04-06 |
EP0590945B1 EP0590945B1 (en) | 1998-02-25 |
Family
ID=20387309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93307701A Expired - Lifetime EP0590945B1 (en) | 1992-09-30 | 1993-09-29 | Vehicle radiator |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0590945B1 (en) |
JP (1) | JPH06194085A (en) |
BR (1) | BR9303979A (en) |
DE (1) | DE69317086T2 (en) |
ES (1) | ES2113493T3 (en) |
MX (1) | MX9306088A (en) |
SE (1) | SE469912C (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0798531A1 (en) * | 1996-03-29 | 1997-10-01 | Valeo Engine Cooling Aktiebolag | Heat exchanger and method of producing the same |
EP0908691A1 (en) * | 1997-10-10 | 1999-04-14 | Societe D'etudes Et De Constructions Aero-Navales | Cross-flow heat exchanger |
EP1061319A1 (en) | 1999-06-18 | 2000-12-20 | Valeo Engine Cooling AB | Fluid conveying tube and vehicle cooler provided therewith |
US6510870B1 (en) | 1999-06-18 | 2003-01-28 | Valeo Engine Cooling Ab | Fluid conveying tube as well as method and device for manufacturing the same |
DE102012008843A1 (en) | 2012-04-28 | 2012-10-04 | Daimler Ag | Heat exchanger e.g. radiator, for vehicle to transfer thermal energy of internal combustion engine to e.g. vehicle environment, has intermediate elements filled in dead water zones in form-, force- and material-fit manner |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008021544B4 (en) * | 2007-07-10 | 2012-03-08 | Modine Manufacturing Co. | Production process for heat exchangers and heat exchangers |
KR100971026B1 (en) * | 2007-12-21 | 2010-07-20 | 주식회사 한국번디 | Heat exchanger |
CN103334828B (en) * | 2013-06-13 | 2015-09-23 | 浙江银轮机械股份有限公司 | The mainboard at cooling tube two end part is connected in intercooler |
CN105605942A (en) * | 2015-12-29 | 2016-05-25 | 江西鑫田车业有限公司 | Heat dissipater |
DE102020124548A1 (en) | 2020-09-21 | 2022-03-24 | Audi Aktiengesellschaft | Radiator assembly for a motor vehicle |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1701752A (en) * | 1929-02-12 | Radiatok unit | ||
CH369777A (en) * | 1959-07-29 | 1963-06-15 | Sulzer Ag | Heat exchanger with a bundle of parallel tubes and at least one tube sheet |
US3438432A (en) * | 1967-06-26 | 1969-04-15 | North American Rockwell | Plastic heat exchanger with anti-buoyancy means |
FR2261493A1 (en) * | 1974-02-18 | 1975-09-12 | Autobrzdy Jablonec Np | |
EP0000189A1 (en) * | 1977-06-27 | 1979-01-10 | Ford-Werke Aktiengesellschaft | Heat exchanger with water headers made of plastics and with metal water tubes, and a method for its manufacture |
DE2847525A1 (en) * | 1978-11-02 | 1980-05-08 | Ford Werke Ag | AIR CONDITIONER EVAPORATOR |
US4360060A (en) * | 1980-06-05 | 1982-11-23 | Valeo | Hollowed plate for a heat exchanger with fluid flow tubes |
DE3327335A1 (en) * | 1983-07-29 | 1985-02-14 | Thermal-Werke, Wärme-, Kälte-, Klimatechnik GmbH, 6909 Walldorf | Heat exchanger and method for producing it |
US4524823A (en) * | 1983-03-30 | 1985-06-25 | Suddeutsch Kuhlerfabrik Julius Fr. Behr GmbH & Co. KG | Heat exchanger having a helical distributor located within the connecting tank |
EP0164327A1 (en) * | 1984-03-09 | 1985-12-11 | Karl Netousek | Arrangement for fixing conduits to connecting sockets, and application to a supply tube for a heat exchanger |
WO1986007628A1 (en) * | 1985-06-18 | 1986-12-31 | Blackstone Sweden Ab | Heat exchanger and method of making it |
WO1990014571A1 (en) * | 1989-05-19 | 1990-11-29 | Deutsche Carbone Aktiengesellschaft | Head piece of a heat-exchanger |
EP0505243A1 (en) * | 1991-03-20 | 1992-09-23 | Valeo Thermique Moteur | Heat exchanger with several rows of tubes, more particularly for motor vehicle |
EP0505244A1 (en) * | 1991-03-20 | 1992-09-23 | Valeo Thermique Moteur | Heat exchanger with tube bundle, more particularly for motor vehicle |
-
1992
- 1992-09-30 SE SE9202819A patent/SE469912C/en not_active IP Right Cessation
-
1993
- 1993-09-29 ES ES93307701T patent/ES2113493T3/en not_active Expired - Lifetime
- 1993-09-29 DE DE1993617086 patent/DE69317086T2/en not_active Expired - Lifetime
- 1993-09-29 EP EP93307701A patent/EP0590945B1/en not_active Expired - Lifetime
- 1993-09-30 MX MX9306088A patent/MX9306088A/en unknown
- 1993-09-30 BR BR9303979A patent/BR9303979A/en not_active IP Right Cessation
- 1993-09-30 JP JP24496593A patent/JPH06194085A/en active Pending
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1701752A (en) * | 1929-02-12 | Radiatok unit | ||
CH369777A (en) * | 1959-07-29 | 1963-06-15 | Sulzer Ag | Heat exchanger with a bundle of parallel tubes and at least one tube sheet |
US3438432A (en) * | 1967-06-26 | 1969-04-15 | North American Rockwell | Plastic heat exchanger with anti-buoyancy means |
FR2261493A1 (en) * | 1974-02-18 | 1975-09-12 | Autobrzdy Jablonec Np | |
EP0000189A1 (en) * | 1977-06-27 | 1979-01-10 | Ford-Werke Aktiengesellschaft | Heat exchanger with water headers made of plastics and with metal water tubes, and a method for its manufacture |
DE2847525A1 (en) * | 1978-11-02 | 1980-05-08 | Ford Werke Ag | AIR CONDITIONER EVAPORATOR |
US4360060A (en) * | 1980-06-05 | 1982-11-23 | Valeo | Hollowed plate for a heat exchanger with fluid flow tubes |
US4524823A (en) * | 1983-03-30 | 1985-06-25 | Suddeutsch Kuhlerfabrik Julius Fr. Behr GmbH & Co. KG | Heat exchanger having a helical distributor located within the connecting tank |
DE3327335A1 (en) * | 1983-07-29 | 1985-02-14 | Thermal-Werke, Wärme-, Kälte-, Klimatechnik GmbH, 6909 Walldorf | Heat exchanger and method for producing it |
EP0164327A1 (en) * | 1984-03-09 | 1985-12-11 | Karl Netousek | Arrangement for fixing conduits to connecting sockets, and application to a supply tube for a heat exchanger |
WO1986007628A1 (en) * | 1985-06-18 | 1986-12-31 | Blackstone Sweden Ab | Heat exchanger and method of making it |
WO1990014571A1 (en) * | 1989-05-19 | 1990-11-29 | Deutsche Carbone Aktiengesellschaft | Head piece of a heat-exchanger |
EP0505243A1 (en) * | 1991-03-20 | 1992-09-23 | Valeo Thermique Moteur | Heat exchanger with several rows of tubes, more particularly for motor vehicle |
EP0505244A1 (en) * | 1991-03-20 | 1992-09-23 | Valeo Thermique Moteur | Heat exchanger with tube bundle, more particularly for motor vehicle |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0798531A1 (en) * | 1996-03-29 | 1997-10-01 | Valeo Engine Cooling Aktiebolag | Heat exchanger and method of producing the same |
US6263570B1 (en) | 1996-03-29 | 2001-07-24 | Valeo Engine Cooling Aktiebolag | Heat exchanger and method of producing the same |
EP0908691A1 (en) * | 1997-10-10 | 1999-04-14 | Societe D'etudes Et De Constructions Aero-Navales | Cross-flow heat exchanger |
FR2769697A1 (en) * | 1997-10-10 | 1999-04-16 | Soc Et Et De Const Aero Navale | HEAT EXCHANGER OF THE ORTHOGONAL CROSSING TYPE OF TWO FLUIDS |
EP1061319A1 (en) | 1999-06-18 | 2000-12-20 | Valeo Engine Cooling AB | Fluid conveying tube and vehicle cooler provided therewith |
US6510870B1 (en) | 1999-06-18 | 2003-01-28 | Valeo Engine Cooling Ab | Fluid conveying tube as well as method and device for manufacturing the same |
US6935418B1 (en) | 1999-06-18 | 2005-08-30 | Valeo Engine Cooling Ab | Fluid conveying tube and vehicle cooler provided therewith |
US6957487B1 (en) | 1999-06-18 | 2005-10-25 | Valeo Engine Cooling, Ab | Fluid conveying tube as well as method and device for manufacturing the same |
DE102012008843A1 (en) | 2012-04-28 | 2012-10-04 | Daimler Ag | Heat exchanger e.g. radiator, for vehicle to transfer thermal energy of internal combustion engine to e.g. vehicle environment, has intermediate elements filled in dead water zones in form-, force- and material-fit manner |
Also Published As
Publication number | Publication date |
---|---|
ES2113493T3 (en) | 1998-05-01 |
SE469912C (en) | 1996-03-28 |
MX9306088A (en) | 1994-06-30 |
EP0590945B1 (en) | 1998-02-25 |
DE69317086T2 (en) | 1998-06-18 |
SE9202819L (en) | 1993-10-04 |
BR9303979A (en) | 1994-04-12 |
DE69317086D1 (en) | 1998-04-02 |
JPH06194085A (en) | 1994-07-15 |
SE469912B (en) | 1993-10-04 |
SE9202819D0 (en) | 1992-09-30 |
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