US20180187985A1 - Heat exchanger and associated method for producing same - Google Patents
Heat exchanger and associated method for producing same Download PDFInfo
- Publication number
- US20180187985A1 US20180187985A1 US15/737,548 US201615737548A US2018187985A1 US 20180187985 A1 US20180187985 A1 US 20180187985A1 US 201615737548 A US201615737548 A US 201615737548A US 2018187985 A1 US2018187985 A1 US 2018187985A1
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- United States
- Prior art keywords
- tubes
- flanges
- collector plate
- holes
- heat exchanger
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- 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.)
- Abandoned
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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
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/04—Arrangements for sealing elements into header boxes or end plates
- F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
- F28F9/165—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by using additional preformed parts, e.g. sleeves, gaskets
-
- 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
- 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
- F28F9/02—Header boxes; End plates
- F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
- F28F9/0224—Header boxes formed by sealing end plates into covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/04—Fastening; Joining by brazing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/12—Fastening; Joining by methods involving deformation of the elements
- F28F2275/125—Fastening; Joining by methods involving deformation of the elements by bringing elements together and expanding
Definitions
- the invention concerns a heat exchanger, in particular for a motor vehicle, and the method for producing same.
- the tubes are generally tubes with an oval or oblong cross section, defined by a major axis and a minor axis, and having ends inserted into holes of a collector plate.
- the tubes, the spacers and the collector plate are generally made from a metal material and attached together during a single brazing step.
- the link between the tubes and the collector plate is rigid and cannot compensate for expansion and retraction phenomena resulting from temperature variations. Over time, these links weaken, and breakages or leaks can occur.
- One of the aims of the present invention is therefore to at least partially overcome the problems of the prior art and propose an improved heat exchanger and the method for producing same.
- the present invention therefore concerns a heat exchanger comprising:
- the tube bundle being brazed and the collector plate comprising at least one compressible seal forming second flanges, the second flanges being compressed between the first flanges and the ends of the tubes in order to provide a tight seal between said ends of the tubes and the corresponding first flanges.
- a compressible seal or a plurality of compressible seals to create the link between the bundle and the collector plate provides a certain flexibility that can absorb the expansions and retractions resulting from temperature variations.
- the link between the bundle and the collector plate is therefore more resistant to these temperature variations.
- the heat exchanger offers optimum thermal performances, due to the brazed bundle, and improved resistance to temperature variations, due to the link between the bundle and the collector plate plate.
- said collector plate can be thinner and there is less of a need to reinforce the collector.
- each tube has an oblong cross section.
- the ends of the tubes comprise a first flaring and a bearing area compressing the compressible seal.
- the ends of the tubes comprise, in addition to or as an alternative to the first flaring, at least one second flaring extending above the compressible seal. It is therefore understood that the ends of the tubes can comprise the first flaring or the second flaring, separately, or indeed the first and the second flaring.
- the second flaring is produced over a limited portion of the ends of the tubes.
- the rate of compression of said second flanges is between 10% and 50% and preferably between 25% and 35%.
- the invention also concerns a method for producing a heat exchanger as previously described and comprising the following steps:
- the step d) of inserting the ends of the tubes into the holes of the collector plate so as to compress the second flanges comprises a first sub-step of inserting the ends of the tubes into the holes of the collector plate and a second sub-step of producing a first flaring and a bearing area at the ends of the tubes.
- the step d) of inserting the ends of the tubes into the holes of the collector plate so as to compress the second flanges is a step of press-fitting the ends of the tubes into the holes of the collector plate, at least said ends being larger in size than the openings of the second flanges.
- the method comprises an additional step of producing at least one second flaring at the ends of the tubes extending above the compressible seal.
- the second flaring is produced over a limited portion of the ends of the tubes.
- FIG. 1 shows a schematic perspective view of a heat exchanger
- FIG. 2 shows a schematic cross-sectional perspective view of a heat exchanger
- FIG. 3 shows a schematic exploded cross-sectional view of a collector plate
- FIG. 3 ′ shows a schematic cross-sectional view of the collector plate of FIG. 3 .
- FIG. 4 shows a schematic view of the collector plate of FIG. 3 along the cutting plane XX
- FIG. 5 shows a schematic cross-sectional view of a heat exchanger according to a first embodiment
- FIGS. 6 to 8 show a schematic cross-sectional view of a heat exchanger according to a second embodiment during different steps of production.
- certain elements or parameters may be numbered, for example as a first element or a second element, as a first parameter and a second parameter, or indeed a first criterion and a second criterion, etc.
- the purpose of this numbering is simply to differentiate between and designate elements, parameters or criteria that are similar but not identical. This numbering does not imply priority of one element, parameter or criterion over another, and such designations can easily be interchanged without departing from the context of the present description. Nor does this numbering imply an order in time, for example in teams of appraising such or such criteria.
- the heat exchanger 1 shown in FIGS. 1 and 2 comprises a bundle 2 formed from a plurality of tubes 20 inside which a first heat-transfer fluid can flow.
- the tubes 20 are arranged parallel to each other and stacked. Between the tubes 20 , spacers 21 are arranged, acting as interference devices and increasing the surface area for the exchange of heat with a second heat-transfer fluid passing between said tubes 20 .
- the tubes 20 and spacers 21 are produced from a metal material and are brazed together in order to form the bundle 2 . Having a brazed bundle 2 helps improve the thermal performances, i.e. the heat exchanges between the two heat-transfer fluids, compared to a mechanically assembled bundle.
- the tubes 20 preferably have an oblong and relatively flat shape.
- the tubes 20 can have an internal spacer 26 between the inner walls of same. This spacer 26 helps provide said tubes 20 with a good level of rigidity.
- the heat exchanger 1 also comprises two water collectors or tanks arranged at each end 22 of the tubes 20 . These collectors comprise a collector plate 4 and a cover (not shown) that covers said collector plate 4 and closes the collector. These collectors are used to collect and/or distribute the first heat-transfer fluid in order for it to flow in the tubes 20 .
- the collector plate 4 provides the sealed link between the collector and the brazed bundle 2 .
- Said collector plate 4 comprises a core 40 , that can be generally rectangular, delimiting a plurality of holes 43 that have a cross section that matches the shape of the cross section of the tubes 20 and that are capable of receiving the ends 22 of the tubes.
- Each hole 43 is bordered by a first flange 44 turned towards the inside of the bundle 2 .
- the holes 43 are similar in size to the openings of the first flanges 44 .
- the first flanges 44 can advantageously be formed as an integral part of the collector plate 4 and can be formed, for example, at the same time as the holes 43 , by drawing.
- the length L 1 corresponds to the longer length and can correspond to the width of the hole 43 , as shown in FIGS. 3, 3 ′ and 5 to 8 .
- the length 11 corresponds meanwhile to the shorter length and can correspond to the thickness of the hole 43 , as shown in FIG. 4 .
- the lengths L 1 and l 1 of the hole 43 are larger than those of the ends 22 of the tubes 20 .
- Reference made here to the width and thickness of the holes 43 reflects that made to the width and thickness of the tubes 20 that are intended to be inserted into said holes 43 .
- the core 40 is extended by a peripheral groove 42 that ends with a peripheral rim 46 forming foldable tabs.
- the peripheral groove 42 is intended to receive the rims of the cover, and the peripheral rim 46 can be folded to attach said cover onto the collector plate 4 .
- the collector plate 4 receives at least one compressible seal 41 , in particular to ensure tight sealing at the holes 43 .
- the collector plate 4 can be provided with only a single compressible seal 41 .
- This compressible seal 41 comprises a core that is applied against the core 40 of the collector plate 4 .
- This core of the compressible seal 41 is linked to a plurality of second flanges 45 , each of which is inserted into a hole 43 .
- the second flanges 45 are compressed between the first flanges 43 and the ends 22 in order to ensure tight sealing between said ends 22 of the tubes 20 and the corresponding first flanges 43 .
- the rate of compression of the flanges 45 is 30%.
- the rate is between 10% and 50% and preferably between 25% and 35%.
- the core of the compressible seal 41 can form, at its periphery, a bead 47 arranged in the peripheral groove 42 and capable of providing a tight seal with the cover when the peripheral rim 46 is folded.
- the collector plate 4 can comprise a plurality of compressible seals 41 that form flanges 45 that are each inserted into a hole 43 in order to ensure tight sealing between the end 22 of a tube 20 and the corresponding first flange 43 .
- tight sealing with the cover can be ensured by a separate compressible seal positioned in the peripheral groove 42 .
- a compressible seal 41 or a plurality of compressible seals 41 for producing the link between the bundle 2 and the collector plate 4 provides a certain flexibility that can absorb the expansions and retractions resulting from temperature variations.
- the link between the bundle 2 and the collector plate 4 is therefore more resistant to these temperature variations.
- the heat exchanger 1 offers optimum thermal performances, due to the brazed bundle 2 , and improved resistance to temperature variations, due to the link between the bundle 2 and the collector plate 4 .
- said collector plate 4 can be thinner and there is less of a need to reinforce the collector.
- the shape of the second flanges 45 also matches that of the cross section of the tubes 20 , or at least the ends 22 of same. It is therefore possible to characterize said second flanges 45 according to two axes of different lengths.
- the length L 2 corresponds to the width of the opening of the second flange 45 when the compressible seal 41 is not compressed, as shown in FIGS. 3, 3 ′, 4 and 6 .
- the length 12 corresponds to the thickness of the opening of the second flange 45 when the compressible seal 41 is not compressed, as shown in FIG. 4 . When compressed, the opening of the second flange 45 at at least one of these lengths (width and/or thickness) increases, for example as shown in FIGS.
- the width of the opening of the compressible seal 45 is larger and corresponds to a length L 2 ′.
- reference made here to the width and thickness of the openings of the second flanges 45 reflects that made to the width and thickness of the tubes 20 that are intended to be inserted into said openings of the second flanges 45 .
- the ends 22 of the tubes 20 are larger in size than the openings of the second flanges 45 but smaller in size than the holes 43 in order to compress the compressible seal 41 at the second flanges 45 .
- Larger or smaller in size should be taken to mean that there is a difference at least in width and/or thickness between the tubes 20 and the holes 43 or the openings of the second flanges 45 .
- the body of a tube 20 and its end 22 can be identical in width and thickness, i.e. the size (width and thickness) of the tube 20 is constant within the bundle 2 .
- the compressible seal 41 is compressed because the width and the thickness of the tube 20 as a whole is larger than that of the openings of the second flanges 45 and smaller than that of the holes 43 .
- the body of a tube 20 and its end 22 can have a different width and/or thickness.
- the end 22 can have a seal flaring 23 referred to hereinafter as the first flaring 23 on the inside of the bundle 2 and that increases the width and/or the thickness of said end 22 .
- the end 22 also comprises a bearing area 24 that is wider and/or thicker than the rest of the body of the tube 20 as a result of the first flaring 23 and that compresses the compressible seal 41 .
- the ends 22 of the tubes 20 can also comprise, as an alternative or in addition to the first flaring 23 , at least one second flaring 25 —a retaining flaring allowing mechanical locking—on the outside of the bundle 2 and that extends over the compressible seal 41 as shown in FIGS. 1, 2 and 8 .
- This second flaring 25 can be produced, in particular, over a limited portion of the ends 22 of the tubes 20 .
- This second flaring 25 allows, in particular, the collector plate 4 to be immobilized and held in position on the bundle 2 .
- the ends 22 of the tubes 20 each comprise two second flarings 25 produced over a limited portion.
- the first 23 and second 25 flarings of the ends 22 are situated to either side of the collector plate 4 .
- the present invention also concerns a method for producing a heat exchanger 1 as previously described and comprising the following steps:
- this last step d) can comprise a first sub-step of inserting the ends 22 of the tubes 20 into the holes 43 of the collector plate 4 and a second sub-step of producing the first flaring 23 and the bearing area 24 at the ends 22 of the tubes 20 .
- This first sub-step is shown in FIG. 6 , and the insertion is therefore easy to carry out because the end 22 of the tube 20 is smaller than or equal in size to the opening of the second flange 45 , and the compressible seal 41 is compressed by forming the first flaring 23 and the bearing area 24 , as shown in FIGS. 7 and 8 .
- This first flaring 23 and the bearing area 24 can be produced, for example, by using a punch with a shape corresponding to that of the ends 22 of the tubes 20 .
- the step d) of inserting the ends 22 of the tubes 20 into the holes 43 of the collector plate 4 so as to compress the second flanges 45 of the compressible seal 41 can be a step of press-fitting the ends 22 of the tubes 20 into the holes 43 of the collector plate 4 .
- the compressible seal 41 In order for the compressible seal 41 to be compressed, at least the ends 22 of the tubes 20 are larger in size than the openings of the second flanges 45 , either because the tube 20 as a whole is generally larger in size, as shown in FIG. 6 , or because a first flaring 23 and a bearing area 24 , as shown in FIGS. 7 and 8 , have been produced in advance on the ends 22 of the tubes 20 .
- the production method can also comprise an additional step of producing at least one second flaring 25 extending above the compressible seal 41 as shown in FIGS. 1, 2 and 8 .
- This second flaring 25 can be produced over a limited portion of the ends 22 of the tubes 20 .
- the heat exchanger 1 according to the invention offers optimum thermal performances, due to the brazed bundle 2 , and improved resistance to temperature variations, due to the mechanical link between the bundle 2 and the collector plate 4 .
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- Mechanical Engineering (AREA)
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
Abstract
-
- a tube bundle (2) comprising a plurality of tubes (20) arranged parallel to each other and spacers (21) arranged between said tubes (20),
- a collector plate (4) comprising holes (43) respectively bordered by first flanges (44) into which ends (22) of the tubes (20) are inserted,
- the tube bundle (2) being brazed and the collector plate (4) comprising at least one compressible seal (41) forming second flanges (45), the second flanges (45) being compressed between the first flanges (43) and the ends (22) of the tubes (20) in order to provide a tight seal between said ends (22) of the tubes (20) and the corresponding first flanges (43).
Description
- The invention concerns a heat exchanger, in particular for a motor vehicle, and the method for producing same.
- More particularly, it concerns a heat exchanger comprising a plurality of tubes between which spacers are inserted. The tubes are generally tubes with an oval or oblong cross section, defined by a major axis and a minor axis, and having ends inserted into holes of a collector plate. In order to ensure tight sealing and facilitate production, the tubes, the spacers and the collector plate are generally made from a metal material and attached together during a single brazing step.
- However, during the use of the heat exchanger, the link between the tubes and the collector plate is rigid and cannot compensate for expansion and retraction phenomena resulting from temperature variations. Over time, these links weaken, and breakages or leaks can occur.
- One of the aims of the present invention is therefore to at least partially overcome the problems of the prior art and propose an improved heat exchanger and the method for producing same.
- The present invention therefore concerns a heat exchanger comprising:
-
- a tube bundle comprising a plurality of tubes arranged parallel to each other and spacers arranged between said tubes,
- a collector plate comprising holes respectively bordered by first flanges into which ends of the tubes are inserted,
- the tube bundle being brazed and the collector plate comprising at least one compressible seal forming second flanges, the second flanges being compressed between the first flanges and the ends of the tubes in order to provide a tight seal between said ends of the tubes and the corresponding first flanges.
- Using a compressible seal or a plurality of compressible seals to create the link between the bundle and the collector plate provides a certain flexibility that can absorb the expansions and retractions resulting from temperature variations. The link between the bundle and the collector plate is therefore more resistant to these temperature variations. There is a synergistic effect between the flexibility of the link, between the bundle and the collector plate plate, and the fact that the bundle is brazed. As a result of this, the heat exchanger offers optimum thermal performances, due to the brazed bundle, and improved resistance to temperature variations, due to the link between the bundle and the collector plate plate. Moreover, because the collector plate is not brazed, said collector plate can be thinner and there is less of a need to reinforce the collector.
- According to one aspect of the invention, at least the end of each tube has an oblong cross section.
- According to another aspect of the invention, the ends of the tubes comprise a first flaring and a bearing area compressing the compressible seal.
- According to another aspect of the invention, the ends of the tubes comprise, in addition to or as an alternative to the first flaring, at least one second flaring extending above the compressible seal. It is therefore understood that the ends of the tubes can comprise the first flaring or the second flaring, separately, or indeed the first and the second flaring.
- According to another aspect of the invention, the second flaring is produced over a limited portion of the ends of the tubes.
- According to another aspect of the invention, the rate of compression of said second flanges is between 10% and 50% and preferably between 25% and 35%.
- The invention also concerns a method for producing a heat exchanger as previously described and comprising the following steps:
-
- a) assembling a tube bundle comprising a plurality of tubes arranged parallel to each other and spacers arranged between said tubes,
- b) brazing the tubes to the spacers,
- c) assembling a collector plate provided with holes bordered by first flanges with a cross section corresponding to the ends of the tubes and equipped with a compressible seal forming second flanges suitable for being engaged respectively through the holes,
- d) inserting the ends of the tubes into the holes of the collector plate so as to compress the second flanges of the compressible seal.
- According to one aspect of the method according to the invention, the step d) of inserting the ends of the tubes into the holes of the collector plate so as to compress the second flanges comprises a first sub-step of inserting the ends of the tubes into the holes of the collector plate and a second sub-step of producing a first flaring and a bearing area at the ends of the tubes.
- According to another aspect of the method according to the invention, the step d) of inserting the ends of the tubes into the holes of the collector plate so as to compress the second flanges is a step of press-fitting the ends of the tubes into the holes of the collector plate, at least said ends being larger in size than the openings of the second flanges.
- According to another aspect of the method according to the invention, the method comprises an additional step of producing at least one second flaring at the ends of the tubes extending above the compressible seal.
- According to another aspect of the method according to the invention, the second flaring is produced over a limited portion of the ends of the tubes.
- Other features and advantages of the invention will become clearer on reading the description that follows, provided as an illustrative and non-limiting example, and viewing the appended drawings in which:
-
FIG. 1 shows a schematic perspective view of a heat exchanger, -
FIG. 2 shows a schematic cross-sectional perspective view of a heat exchanger, -
FIG. 3 shows a schematic exploded cross-sectional view of a collector plate, -
FIG. 3 ′ shows a schematic cross-sectional view of the collector plate ofFIG. 3 , -
FIG. 4 shows a schematic view of the collector plate ofFIG. 3 along the cutting plane XX, -
FIG. 5 shows a schematic cross-sectional view of a heat exchanger according to a first embodiment, -
FIGS. 6 to 8 show a schematic cross-sectional view of a heat exchanger according to a second embodiment during different steps of production. - The elements that are identical in the different figures have been given the same reference numbers.
- The following embodiments are examples. Although the description refers to one or more embodiments, this does not necessarily mean that each reference concerns the same embodiment, or that the features apply only to a single embodiment. Single features of different embodiments may also be combined to provide other embodiments.
- In the present description, certain elements or parameters may be numbered, for example as a first element or a second element, as a first parameter and a second parameter, or indeed a first criterion and a second criterion, etc. The purpose of this numbering is simply to differentiate between and designate elements, parameters or criteria that are similar but not identical. This numbering does not imply priority of one element, parameter or criterion over another, and such designations can easily be interchanged without departing from the context of the present description. Nor does this numbering imply an order in time, for example in teams of appraising such or such criteria.
- The heat exchanger 1 shown in
FIGS. 1 and 2 comprises abundle 2 formed from a plurality oftubes 20 inside which a first heat-transfer fluid can flow. Thetubes 20 are arranged parallel to each other and stacked. Between thetubes 20,spacers 21 are arranged, acting as interference devices and increasing the surface area for the exchange of heat with a second heat-transfer fluid passing between saidtubes 20. Thetubes 20 andspacers 21 are produced from a metal material and are brazed together in order to form thebundle 2. Having a brazedbundle 2 helps improve the thermal performances, i.e. the heat exchanges between the two heat-transfer fluids, compared to a mechanically assembled bundle. As shown inFIGS. 1 and 2 , thetubes 20 preferably have an oblong and relatively flat shape. Moreover, thetubes 20 can have aninternal spacer 26 between the inner walls of same. Thisspacer 26 helps provide saidtubes 20 with a good level of rigidity. - The heat exchanger 1 also comprises two water collectors or tanks arranged at each
end 22 of thetubes 20. These collectors comprise acollector plate 4 and a cover (not shown) that covers saidcollector plate 4 and closes the collector. These collectors are used to collect and/or distribute the first heat-transfer fluid in order for it to flow in thetubes 20. - As shown in greater detail in
FIG. 3 ′, thecollector plate 4 provides the sealed link between the collector and the brazedbundle 2. Saidcollector plate 4 comprises acore 40, that can be generally rectangular, delimiting a plurality ofholes 43 that have a cross section that matches the shape of the cross section of thetubes 20 and that are capable of receiving theends 22 of the tubes. Eachhole 43 is bordered by afirst flange 44 turned towards the inside of thebundle 2. Theholes 43 are similar in size to the openings of thefirst flanges 44. Thefirst flanges 44 can advantageously be formed as an integral part of thecollector plate 4 and can be formed, for example, at the same time as theholes 43, by drawing. - Since the shape of the
holes 43 and thefirst flanges 44 matches that of the cross section of thetubes 20, or at least theends 22 of same, and this shape is generally oblong, it is possible to characterizesaid holes 43 andfirst flanges 44 according to two axes of different lengths. The length L1 corresponds to the longer length and can correspond to the width of thehole 43, as shown inFIGS. 3, 3 ′ and 5 to 8. Thelength 11 corresponds meanwhile to the shorter length and can correspond to the thickness of thehole 43, as shown inFIG. 4 . In order to allow theends 22 of thetubes 20 to be inserted into thefirst flanges 44, the lengths L1 and l1 of thehole 43 are larger than those of theends 22 of thetubes 20. Reference made here to the width and thickness of theholes 43 reflects that made to the width and thickness of thetubes 20 that are intended to be inserted into said holes 43. - The
core 40 is extended by aperipheral groove 42 that ends with aperipheral rim 46 forming foldable tabs. Theperipheral groove 42 is intended to receive the rims of the cover, and theperipheral rim 46 can be folded to attach said cover onto thecollector plate 4. - The
collector plate 4 receives at least onecompressible seal 41, in particular to ensure tight sealing at theholes 43. - According to a first embodiment, shown in
FIGS. 1 and 2 , thecollector plate 4 can be provided with only a singlecompressible seal 41. Thiscompressible seal 41 comprises a core that is applied against thecore 40 of thecollector plate 4. This core of thecompressible seal 41 is linked to a plurality ofsecond flanges 45, each of which is inserted into ahole 43. When thebundle 2 is assembled with thecollector plate 4, thesecond flanges 45 are compressed between thefirst flanges 43 and theends 22 in order to ensure tight sealing between said ends 22 of thetubes 20 and the correspondingfirst flanges 43. The rate of compression of theflanges 45 is 30%. According to variants of the invention, the rate is between 10% and 50% and preferably between 25% and 35%. Moreover, the core of thecompressible seal 41 can form, at its periphery, abead 47 arranged in theperipheral groove 42 and capable of providing a tight seal with the cover when theperipheral rim 46 is folded. - According to a second embodiment not shown here, the
collector plate 4 can comprise a plurality ofcompressible seals 41 that formflanges 45 that are each inserted into ahole 43 in order to ensure tight sealing between theend 22 of atube 20 and the correspondingfirst flange 43. In this embodiment, tight sealing with the cover can be ensured by a separate compressible seal positioned in theperipheral groove 42. - Using a
compressible seal 41 or a plurality ofcompressible seals 41 for producing the link between thebundle 2 and thecollector plate 4, provides a certain flexibility that can absorb the expansions and retractions resulting from temperature variations. The link between thebundle 2 and thecollector plate 4 is therefore more resistant to these temperature variations. There is a synergistic effect between the flexibility of the link between thebundle 2 and thecollector plate 4, and the fact that thebundle 2 is brazed. As a result of this, the heat exchanger 1 offers optimum thermal performances, due to the brazedbundle 2, and improved resistance to temperature variations, due to the link between thebundle 2 and thecollector plate 4. Moreover, because thecollector plate 4 is not brazed, saidcollector plate 4 can be thinner and there is less of a need to reinforce the collector. - The shape of the
second flanges 45 also matches that of the cross section of thetubes 20, or at least theends 22 of same. It is therefore possible to characterize saidsecond flanges 45 according to two axes of different lengths. The length L2 corresponds to the width of the opening of thesecond flange 45 when thecompressible seal 41 is not compressed, as shown inFIGS. 3, 3 ′, 4 and 6. Thelength 12 corresponds to the thickness of the opening of thesecond flange 45 when thecompressible seal 41 is not compressed, as shown inFIG. 4 . When compressed, the opening of thesecond flange 45 at at least one of these lengths (width and/or thickness) increases, for example as shown inFIGS. 5, 7 and 8 , in which the width of the opening of thecompressible seal 45 is larger and corresponds to a length L2′. As before, reference made here to the width and thickness of the openings of thesecond flanges 45 reflects that made to the width and thickness of thetubes 20 that are intended to be inserted into said openings of thesecond flanges 45. - The ends 22 of the
tubes 20 are larger in size than the openings of thesecond flanges 45 but smaller in size than theholes 43 in order to compress thecompressible seal 41 at thesecond flanges 45. Larger or smaller in size should be taken to mean that there is a difference at least in width and/or thickness between thetubes 20 and theholes 43 or the openings of thesecond flanges 45. - As shown in
FIG. 5 , the body of atube 20 and itsend 22 can be identical in width and thickness, i.e. the size (width and thickness) of thetube 20 is constant within thebundle 2. Thecompressible seal 41 is compressed because the width and the thickness of thetube 20 as a whole is larger than that of the openings of thesecond flanges 45 and smaller than that of theholes 43. - On the contrary, and as shown in
FIGS. 7 and 8 , the body of atube 20 and itsend 22 can have a different width and/or thickness. Theend 22 can have a seal flaring 23 referred to hereinafter as thefirst flaring 23 on the inside of thebundle 2 and that increases the width and/or the thickness of saidend 22. Theend 22 also comprises abearing area 24 that is wider and/or thicker than the rest of the body of thetube 20 as a result of thefirst flaring 23 and that compresses thecompressible seal 41. - The ends 22 of the
tubes 20 can also comprise, as an alternative or in addition to thefirst flaring 23, at least onesecond flaring 25—a retaining flaring allowing mechanical locking—on the outside of thebundle 2 and that extends over thecompressible seal 41 as shown inFIGS. 1, 2 and 8 . Thissecond flaring 25 can be produced, in particular, over a limited portion of theends 22 of thetubes 20. Thissecond flaring 25 allows, in particular, thecollector plate 4 to be immobilized and held in position on thebundle 2. In the example shown inFIGS. 1 and 2 , the ends 22 of thetubes 20 each comprise twosecond flarings 25 produced over a limited portion. The first 23 and second 25 flarings of theends 22 are situated to either side of thecollector plate 4. - The present invention also concerns a method for producing a heat exchanger 1 as previously described and comprising the following steps:
-
- a) assembling a
tube bundle 2 comprising a plurality oftubes 20 arranged parallel to each other andspacers 21 arranged between saidtubes 20, - b) brazing the
tubes 20 to thespacers 21, - c) assembling a
collector plate 4 provided withholes 43 bordered byfirst flanges 44 with a cross section corresponding to theends 22 of thetubes 20 and equipped with acompressible seal 41 formingsecond flanges 45 suitable for being engaged respectively through theholes 43, - d) inserting the
ends 22 of thetubes 20 into theholes 43 of thecollector plate 4 so as to compress thesecond flanges 45 of thecompressible seal 41.
- a) assembling a
- According to one embodiment, and in particular when the size of the
end 22 of thetubes 20 is smaller than or equal to the size of the opening of thesecond flanges 45, this last step d) can comprise a first sub-step of inserting theends 22 of thetubes 20 into theholes 43 of thecollector plate 4 and a second sub-step of producing thefirst flaring 23 and the bearingarea 24 at theends 22 of thetubes 20. This first sub-step is shown inFIG. 6 , and the insertion is therefore easy to carry out because theend 22 of thetube 20 is smaller than or equal in size to the opening of thesecond flange 45, and thecompressible seal 41 is compressed by forming thefirst flaring 23 and the bearingarea 24, as shown inFIGS. 7 and 8 . Thisfirst flaring 23 and the bearingarea 24 can be produced, for example, by using a punch with a shape corresponding to that of theends 22 of thetubes 20. - According to another embodiment, the step d) of inserting the
ends 22 of thetubes 20 into theholes 43 of thecollector plate 4 so as to compress thesecond flanges 45 of thecompressible seal 41 can be a step of press-fitting the ends 22 of thetubes 20 into theholes 43 of thecollector plate 4. In order for thecompressible seal 41 to be compressed, at least theends 22 of thetubes 20 are larger in size than the openings of thesecond flanges 45, either because thetube 20 as a whole is generally larger in size, as shown inFIG. 6 , or because afirst flaring 23 and abearing area 24, as shown inFIGS. 7 and 8 , have been produced in advance on theends 22 of thetubes 20. - The production method can also comprise an additional step of producing at least one
second flaring 25 extending above thecompressible seal 41 as shown inFIGS. 1, 2 and 8 . Thissecond flaring 25 can be produced over a limited portion of theends 22 of thetubes 20. - It is therefore clear that the heat exchanger 1 according to the invention offers optimum thermal performances, due to the brazed
bundle 2, and improved resistance to temperature variations, due to the mechanical link between thebundle 2 and thecollector plate 4.
Claims (11)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1555677 | 2015-06-22 | ||
FR1555677A FR3037643B1 (en) | 2015-06-22 | 2015-06-22 | HEAT EXCHANGER AND METHOD FOR MANUFACTURING THE SAME |
PCT/EP2016/064340 WO2016207177A1 (en) | 2015-06-22 | 2016-06-22 | Heat exchanger and associated method for producing same |
Publications (1)
Publication Number | Publication Date |
---|---|
US20180187985A1 true US20180187985A1 (en) | 2018-07-05 |
Family
ID=54329674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/737,548 Abandoned US20180187985A1 (en) | 2015-06-22 | 2016-06-22 | Heat exchanger and associated method for producing same |
Country Status (8)
Country | Link |
---|---|
US (1) | US20180187985A1 (en) |
EP (1) | EP3311095B1 (en) |
JP (1) | JP2018518649A (en) |
KR (1) | KR20180020236A (en) |
CN (1) | CN107810378A (en) |
FR (1) | FR3037643B1 (en) |
PL (1) | PL3311095T3 (en) |
WO (1) | WO2016207177A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11098963B2 (en) | 2019-05-29 | 2021-08-24 | Ovh | Heat exchanger assembly and method of assembly thereof |
US11105565B2 (en) | 2019-05-29 | 2021-08-31 | Ovh | Heat exchanger assembly |
US11255619B2 (en) * | 2017-06-22 | 2022-02-22 | Hanon Systems | Heat exchanger |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3067102B1 (en) * | 2017-05-31 | 2019-06-14 | Valeo Systemes Thermiques | PROCESS FOR PRODUCING A HEAT EXCHANGER |
DE102018111585A1 (en) * | 2017-06-22 | 2018-12-27 | Hanon Systems | Heat transfer device and method of manufacturing the device |
DE102018208473B4 (en) * | 2018-05-29 | 2022-09-15 | Hanon Systems | Heat exchanger and method for producing a heat exchanger |
FR3084738B1 (en) * | 2018-07-31 | 2020-11-27 | Valeo Systemes Thermiques | HEAT EXCHANGER WITH GASKET WITH AT LEAST ONE RECESS ZONE |
DE102019123415B4 (en) * | 2019-09-02 | 2022-11-03 | Hanon Systems | Coolant-air heat exchanger |
Citations (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4369837A (en) * | 1980-02-08 | 1983-01-25 | Societe Anonyme Des Usines Chausson | Tube for tube-plate heat exchangers |
US4401157A (en) * | 1979-10-12 | 1983-08-30 | Valeo | Device for tightly assembling a collector and a water box in heat exchanger |
US4467511A (en) * | 1979-07-26 | 1984-08-28 | Collgon Pierre C | Method for the conformation of a metallic tube, particularly for a heat exchanger, and a heat exchanger provided with tubes thus conformed |
US5058266A (en) * | 1987-09-08 | 1991-10-22 | Norsk Hydro A.S. | Method of making internally finned hollow heat exchanger |
US5318113A (en) * | 1992-07-09 | 1994-06-07 | Valeo Thermique Moteur | Heat exchanger with a bundle of parallel tubes, in particular for a motor vehicle |
US5348082A (en) * | 1992-04-24 | 1994-09-20 | Valeo Thermique Moteur | Heat exchanger with tubes of oblong cross section, in particular for motor vehicles |
US5431218A (en) * | 1992-10-02 | 1995-07-11 | Valeo Thermique Moteur | Heat exchanger with tubes having expanded mouths |
US5456311A (en) * | 1992-04-16 | 1995-10-10 | Langerer & Reich Gmbh & Co. | Heat exchanger |
US5511613A (en) * | 1994-12-12 | 1996-04-30 | Hudson Products Corporation | Elongated heat exchanger tubes having internal stiffening structure |
US5535821A (en) * | 1993-05-11 | 1996-07-16 | Valeo Thermique Moteur | Heat exchanger especially for a motor vehicle |
US5765634A (en) * | 1996-06-05 | 1998-06-16 | Valeo Thermique Moteur | Flat heat exchanger tube with a central partition |
US6044554A (en) * | 1995-11-02 | 2000-04-04 | Valeo Thermique Moteur | Method of assembly of a heat exchanger with oval or oblong tubes |
US6082446A (en) * | 1998-04-20 | 2000-07-04 | Ahaus Tool And Engineering, Inc. | Sealing method and apparatus for a heat exchanger |
US6263570B1 (en) * | 1996-03-29 | 2001-07-24 | Valeo Engine Cooling Aktiebolag | Heat exchanger and method of producing the same |
US6296051B1 (en) * | 1998-09-25 | 2001-10-02 | Valeo Termique Moteur | Heat exchanger with reduced space requirement, in particular for motor vehicle |
US6572153B2 (en) * | 1999-02-23 | 2003-06-03 | Calsonic Kansei Corporation | Structure for mounting tubes to header member of a heat exchanger |
US20030217838A1 (en) * | 2002-05-23 | 2003-11-27 | Valeo Engine Cooling, Inc. | Heat exchanger header assembly |
US20060254761A1 (en) * | 2005-05-11 | 2006-11-16 | Denso Corporation | Brazed structure and method of manufacturing the same |
US7234511B1 (en) * | 1995-06-13 | 2007-06-26 | Philip George Lesage | Modular heat exchanger having a brazed core and method for forming |
US20070169926A1 (en) * | 2006-01-24 | 2007-07-26 | Denso Corporation | Heat exchanger |
US20130160973A1 (en) * | 2010-03-31 | 2013-06-27 | Valeo Systemes Thermiques | Heat exchanger having enhanced performance |
US20140262187A1 (en) * | 2011-10-28 | 2014-09-18 | Behr Gmbh & Co. Kg | Heat exchanger |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54159455U (en) * | 1978-04-28 | 1979-11-07 | ||
JPS54159455A (en) * | 1978-06-06 | 1979-12-17 | Sumitomo Chem Co Ltd | Dyeable polyolefin composition |
DE3050857C2 (en) * | 1979-07-26 | 1994-11-10 | Valeo | Heat exchanger |
JPS5929994A (en) * | 1982-08-11 | 1984-02-17 | Ntn Toyo Bearing Co Ltd | Heat exchanger |
FR2693545B1 (en) * | 1992-07-08 | 1994-09-30 | Valeo Thermique Moteur Sa | Heat exchanger with several rows of tubes, in particular for motor vehicles. |
CN1095022A (en) * | 1994-05-10 | 1994-11-16 | 瓦莱奥热舱公司 | The heat exchanger that is used for automobile |
US6247232B1 (en) * | 1999-03-10 | 2001-06-19 | Transpro, Inc. | Method of manufacturing a welded heat exchanger with grommet construction |
-
2015
- 2015-06-22 FR FR1555677A patent/FR3037643B1/en not_active Expired - Fee Related
-
2016
- 2016-06-22 KR KR1020187001819A patent/KR20180020236A/en not_active Application Discontinuation
- 2016-06-22 CN CN201680036778.5A patent/CN107810378A/en active Pending
- 2016-06-22 JP JP2017566329A patent/JP2018518649A/en active Pending
- 2016-06-22 US US15/737,548 patent/US20180187985A1/en not_active Abandoned
- 2016-06-22 WO PCT/EP2016/064340 patent/WO2016207177A1/en unknown
- 2016-06-22 EP EP16730427.8A patent/EP3311095B1/en active Active
- 2016-06-22 PL PL16730427T patent/PL3311095T3/en unknown
Patent Citations (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4467511A (en) * | 1979-07-26 | 1984-08-28 | Collgon Pierre C | Method for the conformation of a metallic tube, particularly for a heat exchanger, and a heat exchanger provided with tubes thus conformed |
US4401157A (en) * | 1979-10-12 | 1983-08-30 | Valeo | Device for tightly assembling a collector and a water box in heat exchanger |
US4369837A (en) * | 1980-02-08 | 1983-01-25 | Societe Anonyme Des Usines Chausson | Tube for tube-plate heat exchangers |
US5058266A (en) * | 1987-09-08 | 1991-10-22 | Norsk Hydro A.S. | Method of making internally finned hollow heat exchanger |
US5456311A (en) * | 1992-04-16 | 1995-10-10 | Langerer & Reich Gmbh & Co. | Heat exchanger |
US5348082A (en) * | 1992-04-24 | 1994-09-20 | Valeo Thermique Moteur | Heat exchanger with tubes of oblong cross section, in particular for motor vehicles |
US5318113A (en) * | 1992-07-09 | 1994-06-07 | Valeo Thermique Moteur | Heat exchanger with a bundle of parallel tubes, in particular for a motor vehicle |
US5431218A (en) * | 1992-10-02 | 1995-07-11 | Valeo Thermique Moteur | Heat exchanger with tubes having expanded mouths |
US5535821A (en) * | 1993-05-11 | 1996-07-16 | Valeo Thermique Moteur | Heat exchanger especially for a motor vehicle |
US5511613A (en) * | 1994-12-12 | 1996-04-30 | Hudson Products Corporation | Elongated heat exchanger tubes having internal stiffening structure |
US7234511B1 (en) * | 1995-06-13 | 2007-06-26 | Philip George Lesage | Modular heat exchanger having a brazed core and method for forming |
US6044554A (en) * | 1995-11-02 | 2000-04-04 | Valeo Thermique Moteur | Method of assembly of a heat exchanger with oval or oblong tubes |
US6263570B1 (en) * | 1996-03-29 | 2001-07-24 | Valeo Engine Cooling Aktiebolag | Heat exchanger and method of producing the same |
US5765634A (en) * | 1996-06-05 | 1998-06-16 | Valeo Thermique Moteur | Flat heat exchanger tube with a central partition |
US6082446A (en) * | 1998-04-20 | 2000-07-04 | Ahaus Tool And Engineering, Inc. | Sealing method and apparatus for a heat exchanger |
US6296051B1 (en) * | 1998-09-25 | 2001-10-02 | Valeo Termique Moteur | Heat exchanger with reduced space requirement, in particular for motor vehicle |
US6572153B2 (en) * | 1999-02-23 | 2003-06-03 | Calsonic Kansei Corporation | Structure for mounting tubes to header member of a heat exchanger |
US20030217838A1 (en) * | 2002-05-23 | 2003-11-27 | Valeo Engine Cooling, Inc. | Heat exchanger header assembly |
US20060254761A1 (en) * | 2005-05-11 | 2006-11-16 | Denso Corporation | Brazed structure and method of manufacturing the same |
US20070169926A1 (en) * | 2006-01-24 | 2007-07-26 | Denso Corporation | Heat exchanger |
US20130160973A1 (en) * | 2010-03-31 | 2013-06-27 | Valeo Systemes Thermiques | Heat exchanger having enhanced performance |
US20140262187A1 (en) * | 2011-10-28 | 2014-09-18 | Behr Gmbh & Co. Kg | Heat exchanger |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11255619B2 (en) * | 2017-06-22 | 2022-02-22 | Hanon Systems | Heat exchanger |
US11098963B2 (en) | 2019-05-29 | 2021-08-24 | Ovh | Heat exchanger assembly and method of assembly thereof |
US11105565B2 (en) | 2019-05-29 | 2021-08-31 | Ovh | Heat exchanger assembly |
Also Published As
Publication number | Publication date |
---|---|
EP3311095B1 (en) | 2019-04-17 |
FR3037643B1 (en) | 2019-07-12 |
CN107810378A (en) | 2018-03-16 |
JP2018518649A (en) | 2018-07-12 |
KR20180020236A (en) | 2018-02-27 |
EP3311095A1 (en) | 2018-04-25 |
WO2016207177A1 (en) | 2016-12-29 |
FR3037643A1 (en) | 2016-12-23 |
PL3311095T3 (en) | 2019-10-31 |
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