EP1496329A2 - Wärmetauscher und Verfahren zu dessen Herstellung - Google Patents

Wärmetauscher und Verfahren zu dessen Herstellung Download PDF

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Publication number
EP1496329A2
EP1496329A2 EP04015096A EP04015096A EP1496329A2 EP 1496329 A2 EP1496329 A2 EP 1496329A2 EP 04015096 A EP04015096 A EP 04015096A EP 04015096 A EP04015096 A EP 04015096A EP 1496329 A2 EP1496329 A2 EP 1496329A2
Authority
EP
European Patent Office
Prior art keywords
orifice
heat exchanger
fitting block
brazing
bracket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04015096A
Other languages
English (en)
French (fr)
Other versions
EP1496329A3 (de
Inventor
Maciej Kozikowski
Krzysztof Wawrocki
Pawel Borowczyk
Robert Racz
Marek Filipiak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Delphi Technologies Inc filed Critical Delphi Technologies Inc
Publication of EP1496329A2 publication Critical patent/EP1496329A2/de
Publication of EP1496329A3 publication Critical patent/EP1496329A3/de
Withdrawn legal-status Critical Current

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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
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • 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
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F28F9/0251—Massive connectors, e.g. blocks; Plate-like connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/048—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels

Definitions

  • the present invention relates to a heat exchanger comprising a cooling core consisting of plurality of parallel tubes and cooling fins, two manifolds fluidly connected with opposite ends of each tube, and an inlet and outlet ports for a heat exchanging medium.
  • the present invention also relates to the method of manufacturing of such a heat exchanger.
  • the U.S. Pat. application 60/084,311 discloses a fitting block that can be attached to the manifold of a heat exchanger by means of brazing.
  • the longitudinal axis of said block is parallel to the manifold axis and the block comprises a longitudinal surface substantially parallel to the manifold axis, a second surface having a port hole for a jumper tube to which the manifold block is configured for attachment.
  • At least one of the surfaces comprises fins that facilitate heat transfer to the manifold so as to increase the overall heating rate of the manifold during brazing of the block to the jumper tube and the manifold.
  • the port hole is surrounded by a counterbore being sized to serve as a reservoir for the molten braze metal and to prevent molten braze metal from flowing away from the jumper tube, toward the fins during brazing of the jumper tube to the port hole.
  • the object of the present invention is to provide a heat exchanger, which enables preliminary assembling, hence making possible to perform one-shot furnace brazing of all heat exchanger components with no need to use auxiliary supporting elements.
  • a heat exchanger comprising a cooling core consisting of plurality of parallel tubes and cooling fins, two manifolds fluidly connected with opposite ends of each tube, and an inlet and outlet ports for a heat exchanging medium, characterised in that it comprises at least one bracket having a mounting plate and fastened to the manifold; at least one fitting block with a slot for the mounting plate of the bracket and a flow duct ended with an orifice; at least one joint pipe, fluidly connected between the manifold and the orifice in the fitting block; wherein the orifice in the fitting block is surrounded by an annular groove for brazing agent, bordered at its outer side by securing ring, and between the joint pipe and the wall of the orifice an annular capillary gap is provided for the brazing agent.
  • a fitting block allows preliminary assembling of heat exchanger components, which enables its further one-shot furnace brazing.
  • the fitting block shall serve substantially for either inflow or outflow of the heat-exchanging medium, however it is obvious that application of only one fitting block, connected by means of appropriate piping both to inlet and outlet of the heat exchanger is also possible. It is also possible, depending on the selected design of the heat exchanger, to attach fitting blocks to the same manifold divided by a partitioning plate as well as to connect the fitting blocks to both manifolds. Thanks to the capillary gap, the connection of the joint pipe with the fitting block is extremely durable and relative vibrations of the fitting block and the heat exchanger are not transferred to the connection of the joint pipe with the manifold.
  • fitting block is gaffered in order to equalize the thermal balance of the fitting block, the joint pipe and the bracket during the brazing process.
  • Goffering accelerates heating up of the fitting block, which has a bigger thermal capacity than the components it is attached to. Hence, the brazing time is shorter and technological conditions for brazing the individual components of the heat exchanger are improved.
  • the flow duct in the fitting block is ended, at side opposite to the orifice for the joint pipe, with a second orifice for a jumper tube, wherein the shape of the second orifice is the same as the shape of the orifice for the joint pipe.
  • the aforementioned heat exchanger comprising a cooling core consisting of plurality of parallel tubes and cooling fins, two manifolds fluidly connected with opposite ends of each tube and an inlet and outlet ports for a heat exchanging medium. Said method comprises the steps of
  • brackets having a clamping ring that tightly embraces the manifold or self-locking brackets preferably in the form of single-unit shaped profiles.
  • the applied bracket has a suitable mounting plate for a slot in the fitting block.
  • the brazing agent piece has a form of a ring.
  • the flow duct of the fitting block is ended, at side opposite to the orifice for the joint pipe, by second orifice for a jumper tube, wherein the shape of the second orifice is the same as the shape of the orifice for the joint pipe and the jumper tube is placed in the orifice before one shot brazing of the heat exchanger components.
  • Using an additional jumper tube can be recommendable in certain constructions of heat exchangers.
  • Coating the mounting plate and/or the gap of the fitting block by brazing agent before one shot brazing process of the heat exchanger components is also favourable. Such a coating shall melt during brazing of the heat exchanger.
  • the heat exchanger 1, of the type of an automotive vehicle radiator, as shown in the drawing Fig. 5, has a cooling core 2 comprising plurality of parallel tubes and cooling fins disposed between the tubes, fluidly connected with two manifolds 3 capable to be connected to the overall cooling system.
  • FIG. 1 and Fig. 2 show a fragment of the heat exchanger 1 before brazing.
  • the manifold 3, fluidly connected with the cooling core 2, has a bracket 4 attached.
  • the bracket is a self-locking unit made as a shaped aluminium profile.
  • the bracket 4 comprises a mounting plate 5 coated by a brazing agent 6.
  • the fitting block 7 made of aluminium is a separate component of the heat exchanger 1.
  • the fitting block 7 has a slot 8, which enables to slide the block onto the mounting plate 5 of the bracket 4.
  • a flow duct 9 (cf. drawing Fig. 3), which ends at its one side with an orifice 10 for a joint pipe 11 and at the other side with an orifice 12 for a jumper tube 13 serving as either inlet or outlet channel for cooling liquid.
  • the orifice 10 for the joint pipe 11 is surrounded by an annular groove 16 for the brazing agent 17 and bordered from its outer side by the securing ring 18.
  • the orifice 10 has such dimensions that between the joint pipe 11 and the wall of the orifice 10 there is the capillary gap 19 for the brazing agent 17 that shall be inducted into the gap during brazing of the heat exchanger 1. Shaping the brazing agent 17 in the form of a ring is favourable.
  • the joint pipe 11 is inserted, from its one side, into the orifice 14 of the manifold 3 and from its other side into the orifice 10 of the fitting block.
  • the joint pipe 11 is covered by a layer of brazing agent 15.
  • a layer of brazing agent a ring of the same can be applied, similarly as in the case of the orifice 10.
  • the shape and the construction of the second orifice 12 for the jumper tube 13 is substantially identical as the shape and construction of the orifice 10 for the joint pipe 11.
  • the joint pipe 11 is slipped into the orifice 10.
  • the brazing agent 17 is placed inside the annular groove 16 and edges of the securing ring 18 are bent and squeezed inwards either along the whole circle or at several points to preserve the brazing agent 17 from slipping out.
  • the drawing Fig. 2 shows the assembled heat exchanger before brazing operation.
  • both the top and bottom surfaces of the fitting block 7 are goffered. As a result a grid of parallel recess hollows and fins 20 is formed, which accelerate the heating up the fitting block 7.
  • the drawing Fig. 4 presents another embodiment of the fitting block 7'.
  • the shape of the block as well as layout of the slots differ from the previous solution, basic features, including the method of attaching the joint pipe 11' as well as the gap 8', which enables to slide the fitting block onto the mounting plate 5' of the bracket 4' attached to the manifold 3 are still the same.
  • the drawing Fig. 5 shows the heat exchanger with the brackets 4 and 4' as well the fitting blocks 7 and 7' as they are shown in the drawings Fig. 1, Fig. 2 and Fig. 4.
  • the fitting blocks are attached to the same manifold, which is divided by the partitioning plate 21. It is obvious that connecting the heat exchanger to both manifolds is possible with no need to use the partitioning plate 21. Fitting blocks and brackets of the same type, e.g. 4 and 7 can also be applied.
  • the fitting blocks 7 and 7' make possible to attach the heat exchanger 1 to other components of the cooling system, for which suitable orifices 22 and 22' are provided.
  • the jumper tubes 13 and 13' can be eliminated.
  • the fitting blocks 7 and 7' can be provided with appropriate connecting means, e.g. threaded orifices.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
EP04015096A 2003-07-03 2004-06-28 Wärmetauscher und Verfahren zu dessen Herstellung Withdrawn EP1496329A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL03361065A PL361065A1 (en) 2003-07-03 2003-07-03 Heat exchanger and method for manufacturing heat exchangers
PL36106503 2003-07-03

Publications (2)

Publication Number Publication Date
EP1496329A2 true EP1496329A2 (de) 2005-01-12
EP1496329A3 EP1496329A3 (de) 2010-08-04

Family

ID=33448594

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04015096A Withdrawn EP1496329A3 (de) 2003-07-03 2004-06-28 Wärmetauscher und Verfahren zu dessen Herstellung

Country Status (2)

Country Link
EP (1) EP1496329A3 (de)
PL (1) PL361065A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1956333A1 (de) * 2007-02-06 2008-08-13 Behr France Hambach S.A.R.L. Wärmeübertrager insbesondere Kondensator für Klimaanlagen von Kraftfahrzeugen
WO2011120972A1 (fr) * 2010-03-31 2011-10-06 Valeo Systemes Thermiques Echangeur de chaleur muni d'une bride de raccordement
FR2958386A1 (fr) * 2010-03-31 2011-10-07 Valeo Systemes Thermiques Bride de raccordement pour echangeur de chaleur, notamment pour vehicules automobiles
EP3848665A1 (de) * 2020-01-08 2021-07-14 Valeo Autosystemy SP. Z.O.O. Wärmetauscherverbindungsblock, wärmetauscheranordnung mit dem verbindungsblock und verfahren zur herstellung der wärmetauscheranordnung
LU102301B1 (en) * 2020-12-14 2022-06-14 Estra Automotive Systems Luxembourg S A R L Heat exchanger for a vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8431198B2 (en) 2007-10-02 2013-04-30 Dow Global Technologies Inc. Multilayer coextruded shrink labels of oriented polystyrene film containing small rubber particles and low rubber particle gel content and block copolymers

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1508229A (fr) * 1966-11-21 1968-01-05 Chausson Usines Sa Procédé pour la liaison par brassage d'une tubulure sur un réservoir en aluminiumet produit en résultant
JPS6396496A (ja) * 1986-10-14 1988-04-27 Nippon Denso Co Ltd 熱交換器
US5163716A (en) * 1991-10-25 1992-11-17 General Motors Corporation Condenser connector assembly for connecting refrigerant line
BR9910224A (pt) * 1998-05-05 2001-01-09 Norsk Hidro Asa Bloco coletor de trocador de calor, e, processo de solda-brasagem de um bloco coletor de trocador de calor com um coletor de trocador de calor e um tubo conector ponte
US6557373B1 (en) * 2002-03-12 2003-05-06 Newfield Technology Corporation Apparatus for coupling a manifold block to a condenser manifold

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8431198B2 (en) 2007-10-02 2013-04-30 Dow Global Technologies Inc. Multilayer coextruded shrink labels of oriented polystyrene film containing small rubber particles and low rubber particle gel content and block copolymers

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1956333A1 (de) * 2007-02-06 2008-08-13 Behr France Hambach S.A.R.L. Wärmeübertrager insbesondere Kondensator für Klimaanlagen von Kraftfahrzeugen
WO2011120972A1 (fr) * 2010-03-31 2011-10-06 Valeo Systemes Thermiques Echangeur de chaleur muni d'une bride de raccordement
FR2958387A1 (fr) * 2010-03-31 2011-10-07 Valeo Systemes Thermiques Echangeur de chaleur muni d'une bride de raccordement
FR2958386A1 (fr) * 2010-03-31 2011-10-07 Valeo Systemes Thermiques Bride de raccordement pour echangeur de chaleur, notamment pour vehicules automobiles
EP3848665A1 (de) * 2020-01-08 2021-07-14 Valeo Autosystemy SP. Z.O.O. Wärmetauscherverbindungsblock, wärmetauscheranordnung mit dem verbindungsblock und verfahren zur herstellung der wärmetauscheranordnung
LU102301B1 (en) * 2020-12-14 2022-06-14 Estra Automotive Systems Luxembourg S A R L Heat exchanger for a vehicle

Also Published As

Publication number Publication date
EP1496329A3 (de) 2010-08-04
PL361065A1 (en) 2005-01-10

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