EP1515105B1 - An integrated heat exchanger and a method of assembling thereof - Google Patents
An integrated heat exchanger and a method of assembling thereof Download PDFInfo
- Publication number
- EP1515105B1 EP1515105B1 EP04460028A EP04460028A EP1515105B1 EP 1515105 B1 EP1515105 B1 EP 1515105B1 EP 04460028 A EP04460028 A EP 04460028A EP 04460028 A EP04460028 A EP 04460028A EP 1515105 B1 EP1515105 B1 EP 1515105B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- header tanks
- end caps
- projections
- openings
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 21
- 230000000284 resting effect Effects 0.000 claims abstract description 6
- 238000005219 brazing Methods 0.000 claims description 7
- 230000001154 acute effect Effects 0.000 claims description 4
- 238000004378 air conditioning Methods 0.000 claims description 4
- 239000012858 resilient material Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Images
Classifications
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- 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
- F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
- F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
- F28D1/0435—Combination of units extending one behind the other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
- F28F9/002—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core with fastening means for other structures
-
- 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
-
- 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
- F28F9/0202—Header boxes having their inner space divided by partitions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2220/00—Closure means, e.g. end caps on header boxes or plugs on 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
- F28F2275/00—Fastening; Joining
- F28F2275/14—Fastening; Joining by using form fitting connection, e.g. with tongue and groove
Definitions
- the present invention relates to an integrated heat exchanger comprising at least two heat exchangers, each having a cooling core comprised of fins and tubes, two header tanks fluidly connected with reciprocal ends of cooling core tubes, where said heat exchangers are coupled and parallel to each other.
- the invention further relates to a method of assembling such a heat exchanger. JP-2002 257 494 discloses such a heat exchanger.
- Integrated heat exchangers of this kind commonly form a vehicle CRFM (Condenser, Radiator, cooling Fan Module), where a condenser of the vehicle air conditioning system is connected in stacking direction to the engine cooling installation radiator.
- vehicle CRFM Condenser, Radiator, cooling Fan Module
- Examples of such modules are disclosed in U.S. Pat. No.:6,364,005 , GB Pat. 2 371 505 or U.S. Pat. App. No. 10/350,360 .
- radiator is coupled to condenser with end caps closing the header tank openings, by means of appropriate brackets or, as in GB Pat. 2 371 505 , with a clinched seam, and then the whole unit is brazed in a furnace.
- the above methods form CRFMs which are inseparable units, disallowing to detach previously coupled heat exchangers. If any of heat exchangers fails, e.g. gets leak, the whole CRFM needs to be dismounted and then repaired or replaced.
- an integrated heat exchanger where the top ends of the header tanks of the primary heat exchanger are provided with top end caps having projections with openings adapted to receive the top ends of the header tanks of at least one secondary heat exchanger; the bottom ends of the header tanks of the primary heat exchanger are provided with bottom end caps having projections with sockets adapted to receive the bottom ends of the header tanks of at least one secondary heat exchanger; where the bottom ends of the header tanks of at least one secondary heat exchanger are supported on a retaining rings resting in sockets of the projections of the bottom end caps; and the top ends of the header tanks of at least one secondary heat exchanger, are locked by retaining plugs pushed upwardly into the openings of the projections of the top end caps.
- the primary heat exchanger is a radiator of a vehicle cooling system and the secondary heat exchanger is a condenser of a vehicle air conditioning system.
- the retaining rings and the retaining plugs are made of resilient material, advantageously plastic.
- Such mounting system eliminates possible displacements of particular elements, compensates dimensional manufacturing tolerances of the condenser and the radiator, and provides an amortization effect during the engine operation.
- the system enables also thermal stresses compensation caused by coolant temperature differences in particular heat exchangers.
- bottom and top end caps may be mounted to the primary heat exchanger after brazing thereof.
- the procedure described above may be also performed for each third and any subsequent heat exchanger of the integrated heat exchanger.
- the method according to the present invention allows a reliable coupling a number of heat exchangers in uncomplicated way, at the same time avoiding additional operations of preassembling or positioning.
- Application of only two pairs of end caps, provided with retaining plugs and retaining rings, permits to keep the right position of heat exchangers with respect to each other, wherein at the same time it is possible to detach such a connection, which is advantageous in servicing the integrated module, e.g. by replacing condenser that has failed.
- the portion of the integrated heat exchanger 1 according to one embodiment of the present invention is presented in Fig. 1 , where the heat exchanger 1 forms an integrated vehicle CRFM module.
- the heat exchanger 1 comprises in fact of two heat exchangers: the radiator 2 of the vehicle cooling system and the condenser 3 of the vehicle air conditioning systems.
- the drawing presents only top and bottom ends of the heat exchangers 2 and 3.
- Radiator 2 comprises of two header tanks 21 (only one shown on the drawing) having a rectangular cross-section and fluidly connected with reciprocal ends of tubes 22, that along with cooling fins 23 located in regions between the tubes 22 form the radiator cooling core. Ends of tubes 22 are inserted in grooves 24.
- the construction of the condenser 3 is similar. It comprises of two circular header tanks 31 fluidly connected with tubes 32 inserted into appropriate grooves 34. The tubes 32 and the cooling fins 33 located in regions between the tubes 32 form the condenser cooling core shown in part in the drawing.
- Heat exchangers 2 and 3 are manufactured independently i.e. they are independently preassembled and brazed in a furnace.
- the open ends of the condenser 3 header tanks 31 are closed by the end caps 35 recessed inside the header tank 31 profile.
- top end cap 4 The open top end of the radiator 2 header tank 21 is closed by top end cap 4 and the bottom end by bottom end cap 5.
- the end caps 4 and 5 have been manufactured by a cup-ironing method and then brazed to the header tanks 21 in the course of brazing of the radiator 2. In the presented embodiment they additionally serve as separators closing the profiles of the header tanks 21.
- Top end caps 4 have projections 41 with openings 43, having a diameter greater than the diameter of the condenser 3 header tanks 31.
- bottom end caps 5 have the similar projections 51 with sockets (not shown in the drawing).
- the construction additionally comprise retaining plugs 42 shown in detached position and provided with a circumferential snap 45, and retaining rings 52 resting in sockets of the projections 51 of the bottom end caps 5.
- the plugs and the rings are made of plastic as single-unit elements.
- Fig. 2 presents the process of assembling the integrated heat exchanger 1.
- the first step is to place the retaining rings 52 in the sockets of the bottom end caps.
- the retaining rings 52 have an inner diameter tight-fitted to the outer diameter of the circular header tanks 31 of the condenser 3.
- Next step is to insert the top ends of the condenser header tanks 31 at an acute angle into openings 43 in projections 41 of the top end caps 4. Then one should turn the condenser 3 to obtain its parallel position with respect to the radiator 2 cooling core and displace it down, so as to place ends of its header tanks 31 into retaining rings 52.
- Fig. 3 The last step of assembly process is presented in Fig. 3 , showing the heat exchanger after its assembling, in partial cross-section with details of the retaining plug 42.
- the top ends of the header tanks 31 of the condenser 3 are locked with the retaining plugs 42 pushed upwardly into the openings 43 of the projections 41 of the top end cap 4, until the circumferential snaps 45 lock behind the edges of the openings 43.
- the diameter of the opening 43 in projection 41 of the top end cap 4 is greater than the diameter of the second header tank 31 so as to enable the insertion of the header tanks 31 into the top end cap at a certain acute angle to the radiator cooling core.
- the plug 42 tightly fills the space between the wall of the opening and the wall of the header tank.
- Fig. 4 shows another embodiment of the essential elements forming the integrated exchanger according to the present invention. Reference numerals denoting the same functional elements remain unchanged.
- the socket 53 in the projection 51 of the bottom end cap 5 is defined by rounded vertical wall along the periphery of projection 51, and by a vertical protrusion 54 cut out in the projection 51 horizontal surface and then bent upwardly at straight angle.
- the diameter of the socket 53 is tightly fitted to the external diameter of the retaining ring 52, having internal wall adapted to receive the bottom end of the condenser.
- the opening 43 in the projection 41 of the top end cap 4 is provided with internal thread 46 corresponding to the external thread 47 on the wall of the retaining plug 42.
- a screwdriver placed in the appropriate recess 48 provided in the retaining plug 42.
- the integrated heat exchanger does not need to form a vehicle radiator condenser CRFM module; that the method enables assembling more than two heat exchangers in parallel; that the header tanks profiles may have any appropriate cross-sections i.e. oval, rectangular, double plated with seam, folded, etc.; that the end caps may be attached to the primary heat exchanger after its finishing; and the retaining plug may be provided with other types of locking arrangements.
- Other modifications of the invention are also possible, without departing from the spirit of invention and its scope of protection as indicated in appended claims.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
- Air-Conditioning For Vehicles (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Making Paper Articles (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
Description
- The present invention relates to an integrated heat exchanger comprising at least two heat exchangers, each having a cooling core comprised of fins and tubes, two header tanks fluidly connected with reciprocal ends of cooling core tubes, where said heat exchangers are coupled and parallel to each other. The invention further relates to a method of assembling such a heat exchanger.
JP-2002 257 494 - Integrated heat exchangers of this kind commonly form a vehicle CRFM (Condenser, Radiator, cooling Fan Module), where a condenser of the vehicle air conditioning system is connected in stacking direction to the engine cooling installation radiator. Examples of such modules are disclosed in
U.S. Pat. No.:6,364,005 ,GB Pat. 2 371 505 U.S. Pat. App. No. 10/350,360 . - Typically radiator is coupled to condenser with end caps closing the header tank openings, by means of appropriate brackets or, as in
GB Pat. 2 371 505 - It is thus the object of the present invention to provide an integrated heat exchanger of the type mentioned above, having a simple construction, resistant to vibrations generated e.g. during the engine operation; which is separable and allows to detach particular heat exchangers forming the integrated module, even if the module is mounted to the vehicle chassis.
- According to the present invention there is provided an integrated heat exchanger, where the top ends of the header tanks of the primary heat exchanger are provided with top end caps having projections with openings adapted to receive the top ends of the header tanks of at least one secondary heat exchanger; the bottom ends of the header tanks of the primary heat exchanger are provided with bottom end caps having projections with sockets adapted to receive the bottom ends of the header tanks of at least one secondary heat exchanger; where the bottom ends of the header tanks of at least one secondary heat exchanger are supported on a retaining rings resting in sockets of the projections of the bottom end caps; and the top ends of the header tanks of at least one secondary heat exchanger, are locked by retaining plugs pushed upwardly into the openings of the projections of the top end caps.
- Preferably the primary heat exchanger is a radiator of a vehicle cooling system and the secondary heat exchanger is a condenser of a vehicle air conditioning system.
- Preferably the retaining rings and the retaining plugs are made of resilient material, advantageously plastic.
- Such mounting system eliminates possible displacements of particular elements, compensates dimensional manufacturing tolerances of the condenser and the radiator, and provides an amortization effect during the engine operation. The system enables also thermal stresses compensation caused by coolant temperature differences in particular heat exchangers.
- In another aspect of the present invention there is provided a method of assembling integrated heat exchanger comprising the steps of
- (i) preliminary assembling and brazing the primary heat exchanger providing the header tanks thereof with top end caps having projections with openings adapted to receive the top ends of the header tanks of at least one secondary heat exchanger, and with bottom end caps having projections with sockets adapted to receive the bottom ends of the header tanks of at least one secondary heat exchanger;
- (ii) preliminary assembling and brazing at least one secondary heat exchanger;
- (iii) placing the retaining rings into sockets of the bottom end caps;
- (iv) inserting the top ends of header tanks of the secondary heat exchanger at an acute angle into openings in projections of the top end caps;
- (v) rotating the secondary heat exchanger to the position substantially parallel to the primary heat exchanger;
- (vi) lowering the secondary heat exchanger so as to lock ends of its header tank into appropriate retaining rings resting in the sockets of the projections of the bottom end caps; and
- (vi) locking the top ends of the header tanks of the secondary heat exchanger with retaining plugs pushed upwardly into the openings of the projections of the top end caps.
- To detach the secondary heat exchanger one should simply perform the above steps in reverse order, i.e. unlock the retaining plugs, displace the secondary heat exchanger upward and turn its bottom side away of the primary heat exchanger, finally displace it downward.
- It is worth noting that bottom and top end caps may be mounted to the primary heat exchanger after brazing thereof.
- The procedure described above may be also performed for each third and any subsequent heat exchanger of the integrated heat exchanger.
- The method according to the present invention allows a reliable coupling a number of heat exchangers in uncomplicated way, at the same time avoiding additional operations of preassembling or positioning. Application of only two pairs of end caps, provided with retaining plugs and retaining rings, permits to keep the right position of heat exchangers with respect to each other, wherein at the same time it is possible to detach such a connection, which is advantageous in servicing the integrated module, e.g. by replacing condenser that has failed.
- The invention is presented below by way of exemplary embodiments in connection with the drawings on which:
-
Fig. 1 is a partially exploded axonometric view of a portion of an integrated vehicle CRFM module, made according to the present invention; -
Fig. 2 is a side view of an integrated vehicle CRFM module ofFig. 1 , illustrating the process of assembling thereof; -
Fig. 3 is a side view of an integrated vehicle CRFM module ofFig. 1 , after assembling thereof; and -
Fig. 4 is an exploded axonometric view of another embodiment of the invention. - The portion of the integrated heat exchanger 1 according to one embodiment of the present invention is presented in
Fig. 1 , where the heat exchanger 1 forms an integrated vehicle CRFM module. - As shown, the heat exchanger 1 comprises in fact of two heat exchangers: the
radiator 2 of the vehicle cooling system and thecondenser 3 of the vehicle air conditioning systems. For the purpose of clarity, the drawing presents only top and bottom ends of theheat exchangers -
Radiator 2 comprises of two header tanks 21 (only one shown on the drawing) having a rectangular cross-section and fluidly connected with reciprocal ends oftubes 22, that along withcooling fins 23 located in regions between thetubes 22 form the radiator cooling core. Ends oftubes 22 are inserted ingrooves 24. - The construction of the
condenser 3 is similar. It comprises of twocircular header tanks 31 fluidly connected withtubes 32 inserted intoappropriate grooves 34. Thetubes 32 and thecooling fins 33 located in regions between thetubes 32 form the condenser cooling core shown in part in the drawing. -
Heat exchangers condenser 3header tanks 31 are closed by theend caps 35 recessed inside theheader tank 31 profile. - The open top end of the
radiator 2header tank 21 is closed bytop end cap 4 and the bottom end bybottom end cap 5. Theend caps header tanks 21 in the course of brazing of theradiator 2. In the presented embodiment they additionally serve as separators closing the profiles of theheader tanks 21.Top end caps 4 haveprojections 41 withopenings 43, having a diameter greater than the diameter of thecondenser 3header tanks 31. On the other handbottom end caps 5 have thesimilar projections 51 with sockets (not shown in the drawing). - The construction additionally comprise retaining
plugs 42 shown in detached position and provided with acircumferential snap 45, and retainingrings 52 resting in sockets of theprojections 51 of thebottom end caps 5. The plugs and the rings are made of plastic as single-unit elements. -
Fig. 2 presents the process of assembling the integrated heat exchanger 1. The first step is to place theretaining rings 52 in the sockets of the bottom end caps. Theretaining rings 52 have an inner diameter tight-fitted to the outer diameter of thecircular header tanks 31 of thecondenser 3. Next step is to insert the top ends of thecondenser header tanks 31 at an acute angle intoopenings 43 inprojections 41 of thetop end caps 4. Then one should turn thecondenser 3 to obtain its parallel position with respect to theradiator 2 cooling core and displace it down, so as to place ends of itsheader tanks 31 into retainingrings 52. - The last step of assembly process is presented in
Fig. 3 , showing the heat exchanger after its assembling, in partial cross-section with details of theretaining plug 42. As shown the top ends of theheader tanks 31 of thecondenser 3 are locked with theretaining plugs 42 pushed upwardly into theopenings 43 of theprojections 41 of thetop end cap 4, until thecircumferential snaps 45 lock behind the edges of theopenings 43. The diameter of theopening 43 inprojection 41 of thetop end cap 4 is greater than the diameter of thesecond header tank 31 so as to enable the insertion of theheader tanks 31 into the top end cap at a certain acute angle to the radiator cooling core. Theplug 42 tightly fills the space between the wall of the opening and the wall of the header tank. - It is understood that to detach the condenser one should perform the above steps in reverse order, i.e. unlock the
plugs 42, displace the condenser upward and turn its bottom side away of the radiator, finally displace it downward. -
Fig. 4 shows another embodiment of the essential elements forming the integrated exchanger according to the present invention. Reference numerals denoting the same functional elements remain unchanged. - The
socket 53 in theprojection 51 of thebottom end cap 5 is defined by rounded vertical wall along the periphery ofprojection 51, and by avertical protrusion 54 cut out in theprojection 51 horizontal surface and then bent upwardly at straight angle. The diameter of thesocket 53 is tightly fitted to the external diameter of the retainingring 52, having internal wall adapted to receive the bottom end of the condenser. - The
opening 43 in theprojection 41 of thetop end cap 4 is provided withinternal thread 46 corresponding to theexternal thread 47 on the wall of the retainingplug 42. In order to lock the retainingplug 42 in theopening 43 one should merely screw it down with a screwdriver placed in theappropriate recess 48 provided in the retainingplug 42. - The above embodiments of the heat exchanger according to the present invention are merely exemplary. The figures are not necessarily to scale, and some features may be exaggerated or minimized to show details of particular elements. A person skilled in the art shall easily note, in particular, that the integrated heat exchanger does not need to form a vehicle radiator condenser CRFM module; that the method enables assembling more than two heat exchangers in parallel; that the header tanks profiles may have any appropriate cross-sections i.e. oval, rectangular, double plated with seam, folded, etc.; that the end caps may be attached to the primary heat exchanger after its finishing; and the retaining plug may be provided with other types of locking arrangements. Other modifications of the invention are also possible, without departing from the spirit of invention and its scope of protection as indicated in appended claims.
Claims (8)
- An integrated heat exchanger, in particular a vehicle Condenser, Radiator, cooling Fan Module, comprising at least two heat exchangers, each having a cooling core comprised of fins and tubes, two header tanks fluidly connected with reciprocal ends of cooling core tubes, where said heat exchangers are coupled and parallel to each other, characterised in that top ends of the header tanks (21) of the primary heat exchanger (2) are provided with top end caps (4) having projections (41) with openings (43) adapted to receive the top ends of the header tanks (31) of at least one secondary heat exchanger (3); bottom ends of the header tanks (21) of the primary heat exchanger (2) are provided with bottom end caps (5) having projections (51) with sockets (53) adapted to receive the bottom ends of the header tanks (31) of at least one secondary heat exchanger (3); where the bottom ends of the header tanks (31) of at least one secondary heat exchanger (3) are supported on retaining rings (52) resting in sockets (53) of the projections (51) of the bottom end caps (5); and the top ends of the header tanks (31) of at least one secondary heat exchanger (3), are locked by retaining plugs (42) pushed upwardly into the openings (43) of the projections (41) of the top end caps (4).
- An integrated heat exchanger as claimed in claim 1, characterised in that the primary heat exchanger (2) is a radiator of a vehicle cooling system and the secondary heat exchanger (3) is a condenser of a vehicle air conditioning system.
- An integrated heat exchanger as claimed in claim 1 or 2, characterised in that the retaining rings (52) and the retaining plugs (42) are made of resilient material, preferably plastic.
- An integrated heat exchanger as claimed in claim 1 or 2, characterised in that the retaining plugs (42) are provided with a circumferential snap (45) locking its positions in openings (43) of the projections (41) of the top end caps (4).
- An integrated heat exchanger as claimed in claim 1 or 2, characterised in that the retaining plugs (42) are provided with an external thread (47) corresponding to the internal thread (46) in the openings (43) of the projections (41) of the top end caps (4).
- A method of assembling an integrated heat exchanger as defined in claim 1 in particular a vehicle Condenser, Radiator, cooling Fan Module, comprising at least two heat exchangers, each having a cooling core comprised of fins and tubes, two header tanks fluidly connected with reciprocal ends of cooling core tubes, where said heat exchangers are coupled and parallel to each other, characterised in that it comprises the steps of(i) preliminary assembling and brazing the primary heat exchanger providing the header tanks thereof with top end caps having projections with openings adapted to receive the top ends of the header tanks of at least one secondary heat exchanger, and provided with bottom end caps having projections with sockets adapted to receive the bottom ends of the header tanks of at least one secondary heat exchanger;(ii) preliminary assembling and brazing at least one secondary heat exchanger;(iii) placing the retaining rings in the sockets of the bottom end caps;(iv) inserting the top ends of header tanks of the secondary heat exchanger at an acute angle into openings in projections of the top end caps;(v) rotating the secondary heat exchanger to the position substantially parallel to the primary heat exchanger;(vi) lowering the secondary heat exchanger so as to place ends of its header tanks into appropriate retaining rings resting in the sockets of the projections of the bottom end caps; and(vii) locking the top ends of the header tanks of the secondary heat exchanger with retaining plugs pushed upwardly into the openings of the projections of the top end caps.
- A method as claimed in claim 6, characterised in that bottom and top end caps are mounted to the primary heat exchanger after brazing thereof.
- A method as claimed in claim 6 or 7, characterised in that it the steps (ii) to (vi) are performed for each third and any subsequent heat exchanger of the integrated heat exchanger.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0321092.9A GB0321092D0 (en) | 2003-09-10 | 2003-09-10 | Radiator for a motor vehicle |
GB0321092 | 2003-09-10 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1515105A2 EP1515105A2 (en) | 2005-03-16 |
EP1515105A3 EP1515105A3 (en) | 2009-05-06 |
EP1515105B1 true EP1515105B1 (en) | 2010-10-20 |
Family
ID=29226753
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04460028A Expired - Lifetime EP1515105B1 (en) | 2003-09-10 | 2004-06-28 | An integrated heat exchanger and a method of assembling thereof |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1515105B1 (en) |
AT (2) | ATE479067T1 (en) |
DE (2) | DE602004028784D1 (en) |
GB (1) | GB0321092D0 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1757889B1 (en) * | 2005-08-24 | 2010-01-13 | Behr France Hambach S.A.R.L. | Header tank with an end cap particularly for a condenser in air conditioning unit. |
DE102009031696A1 (en) * | 2009-07-04 | 2011-01-05 | Modine Manufacturing Co., Racine | Heat exchanger assembly for use in motor vehicle, has large heat exchanger and small heat exchanger fastened to one another, where connecting piece of small heat exchanger is integrated in or on collection box of large heat exchanger |
ES1077100Y (en) * | 2012-04-04 | 2012-09-07 | Ind Royal Termic S L | RADIATOR EXTREME CLOSURE ELEMENT |
CN105333761B (en) * | 2014-08-13 | 2018-06-05 | 杨朝阳 | The integrated morphology of heat exchanger bobbin carriage |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6095239A (en) * | 1996-08-12 | 2000-08-01 | Calsonic Kansei Corporation | Integral-type heat exchanger |
JP4106194B2 (en) * | 2001-02-28 | 2008-06-25 | カルソニックカンセイ株式会社 | Tank structure of integrated heat exchanger |
-
2003
- 2003-09-10 GB GBGB0321092.9A patent/GB0321092D0/en not_active Ceased
-
2004
- 2004-05-31 DE DE602004028784T patent/DE602004028784D1/en not_active Expired - Lifetime
- 2004-05-31 AT AT04460017T patent/ATE479067T1/en not_active IP Right Cessation
- 2004-06-28 EP EP04460028A patent/EP1515105B1/en not_active Expired - Lifetime
- 2004-06-28 DE DE602004029637T patent/DE602004029637D1/en not_active Expired - Lifetime
- 2004-06-28 AT AT04460028T patent/ATE485486T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
GB0321092D0 (en) | 2003-10-08 |
ATE479067T1 (en) | 2010-09-15 |
ATE485486T1 (en) | 2010-11-15 |
DE602004029637D1 (en) | 2010-12-02 |
EP1515105A3 (en) | 2009-05-06 |
DE602004028784D1 (en) | 2010-10-07 |
EP1515105A2 (en) | 2005-03-16 |
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