EP1420223B1 - A radiator for motor vehicles with piping integrated on a manifold tank - Google Patents

A radiator for motor vehicles with piping integrated on a manifold tank Download PDF

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Publication number
EP1420223B1
EP1420223B1 EP02425704A EP02425704A EP1420223B1 EP 1420223 B1 EP1420223 B1 EP 1420223B1 EP 02425704 A EP02425704 A EP 02425704A EP 02425704 A EP02425704 A EP 02425704A EP 1420223 B1 EP1420223 B1 EP 1420223B1
Authority
EP
European Patent Office
Prior art keywords
tank
manifold
radiator
outlet channel
manifold tank
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
Application number
EP02425704A
Other languages
German (de)
French (fr)
Other versions
EP1420223A1 (en
Inventor
Eustachio Masciandara
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.)
Denso Thermal Systems SpA
Original Assignee
Denso Thermal Systems SpA
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
Priority to DE60202622T priority Critical patent/DE60202622T2/en
Application filed by Denso Thermal Systems SpA filed Critical Denso Thermal Systems SpA
Priority to PT02425704T priority patent/PT1420223E/en
Priority to ES02425704T priority patent/ES2235001T3/en
Priority to EP02425704A priority patent/EP1420223B1/en
Priority to AT02425704T priority patent/ATE287074T1/en
Priority to ARP030104147A priority patent/AR041944A1/en
Priority to PL363447A priority patent/PL199496B1/en
Priority to BRPI0305137-4A priority patent/BR0305137B1/en
Publication of EP1420223A1 publication Critical patent/EP1420223A1/en
Application granted granted Critical
Publication of EP1420223B1 publication Critical patent/EP1420223B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F28D1/05316—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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0231—Header boxes having an expansion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0091—Radiators
    • F28D2021/0094—Radiators for recooling the engine coolant

Definitions

  • the present invention relates to a radiator for vehicles, which has the characteristics defined in the preamble of the main claim.
  • radiators for vehicles provided with two manifold tanks, which are set parallel to one another, and a plurality of pipes, which extend between the manifold tanks and are set so that, when the radiator is mounted on a vehicle, the manifold tanks extend in a vertical direction.
  • Radiators of this type have an inlet connector for the heat-exchange liquid set at the top end of a first manifold tank and an outlet connector for the heat-exchange liquid set at the bottom end of the second manifold tank.
  • Vehicle manufacturers tend to design the new models of vehicles so as to simplify and reduce the costs of maintenance operations. In particular, it would be preferable to be able to remove and re-install the radiator with an upward movement, without having to set the vehicle on a hydraulic power lift or over a pit.
  • the purpose of the present invention is to provide a radiator for vehicles which will enable simplification of the operations of removal and installation performed from above.
  • number 10 designates a radiator for the cooling circuit of an internal-combustion engine of a motor vehicle.
  • the radiator 10 comprises a first manifold tank 12 and a second manifold tank 14, both preferably made of injection-moulded plastic material.
  • the manifold tanks 12, 14 are set parallel to one another and are set on opposite sides of a heat-exchange core 16.
  • the heat-exchange core 16 comprises a plurality of pipes 18 set parallel to one another, the ends of which are set in fluid communication. with the manifold tanks 12, 14. In a known way, the ends of the nest of pipes 18 are fixed to bottom plates 20, 22 connected in a fluid-tight way to the respective manifold tanks 12, 14.
  • Figure 1 illustrates the radiator 10 in the position in which it is mounted on a vehicle.
  • the manifold tanks 12, 14 extend in a vertical direction, and the pipes 18 in a horizontal direction.
  • the first manifold tank 12 is provided with an inlet connector 24 for the flow of coolant.
  • the inlet connector 24 is set at the top end of the manifold tank 12 and is preferably obtained integrally with the tank 12 during the moulding of the latter.
  • the radiator 10 has an outlet connector 26, which is set, like the inlet connector 24, in the vicinity of the top edge of the radiator.
  • the present invention envisages an outlet channel 28 for the coolant, which extends parallel to the second manifold tank 14.
  • the second manifold tank 14 is obtained integrally with the outlet channel 28 and with an expansion tank 30.
  • the outlet channel 28 is separated from the manifold tank 14 by a wall 32.
  • the manifold tank 14 communicates with the outlet channel 28 by means of an opening 34 located at the bottom end of the manifold tank 14.
  • the outlet channel 28 communicates with the outlet connector 26 located at the top end of the outlet channel 28 and at the top end of the manifold tank 14.
  • the outlet channel 28 further communicates with the expansion tank 30 by means of a passage 36 formed at the bottom end of the outlet channel 28.
  • the outlet connector 26 is formed in an integral way with a side wall 38, which constitutes a closing lid for closing the outlet channel 28.
  • the wall 38 cannot be obtained integrally with the channel 28, so that it is produced as a separate component, which is welded, for example via ultrasonic welding, along the perimeter 40 of the outlet channel 28.
  • the top part of the outlet channel 28 and the top part of the expansion tank 30 are open, and a closing element 42 is fixed, for example by means of ultrasonic welding, on the open top edge 44.
  • the closing element 42 may be provided with an opening 46 for pouring the coolant into the expansion tank 30.
  • the radiator according to the present invention further comprises an auxiliary channel 48, which sets in communication the top part of the manifold tank 14 with the expansion tank 30, in a point of the latter located below the normal level of the liquid.
  • the auxiliary channel 48 has the function of transferring the gas which collects at the top of the manifold tank 14 into the expansion tank 30.
  • the flow of coolant enters the radiator 10 through the inlet connector 24 and, after traversing the pipes 18, collects in the manifold tank 14.
  • the coolant passes into the outlet channel 28 through the opening 34 and comes out through the outlet connector 26.
  • the outlet channel 28 basically has the purpose of enabling positioning of the outlet connector 26 at the top edge of the radiator 10. In this way, both of the connectors 24, 26 are readily accessible from above for the operations of removal of the radiator. The positioning upwards of both of the connectors 24, 26 prevents the need for the operator who is carrying out removal of the radiator 10 to intervene in the bottom part of the vehicle, with the consequent need to set the vehicle on a hydraulic power lift or over a pit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Description

  • The present invention relates to a radiator for vehicles, which has the characteristics defined in the preamble of the main claim.
  • There are known radiators for vehicles provided with two manifold tanks, which are set parallel to one another, and a plurality of pipes, which extend between the manifold tanks and are set so that, when the radiator is mounted on a vehicle, the manifold tanks extend in a vertical direction. Radiators of this type have an inlet connector for the heat-exchange liquid set at the top end of a first manifold tank and an outlet connector for the heat-exchange liquid set at the bottom end of the second manifold tank.
  • Such a radiator as defined in the preamble of claim 1 is disclosed in US 2002/0056541 A.
  • Vehicle manufacturers tend to design the new models of vehicles so as to simplify and reduce the costs of maintenance operations. In particular, it would be preferable to be able to remove and re-install the radiator with an upward movement, without having to set the vehicle on a hydraulic power lift or over a pit.
  • The purpose of the present invention is to provide a radiator for vehicles which will enable simplification of the operations of removal and installation performed from above.
  • According to the present invention, said purpose is achieved by a radiator having the characteristics forming the subject of the annexed claims.
  • The present invention will now be described in detail with reference to the attached drawings, provided purely by way of non-limiting example, and in which:
    • Figure 1 is a perspective view of a radiator according to the present invention,
    • Figure 2 is a perspective view of the part indicated by the arrow II in Figure 1, and
    • Figures 3, 4 and 5 are cross sections according to the lines III-III, IV-IV and V-V of Figure 1.
  • With reference to Figure 1, number 10 designates a radiator for the cooling circuit of an internal-combustion engine of a motor vehicle. The radiator 10 comprises a first manifold tank 12 and a second manifold tank 14, both preferably made of injection-moulded plastic material. The manifold tanks 12, 14 are set parallel to one another and are set on opposite sides of a heat-exchange core 16. The heat-exchange core 16 comprises a plurality of pipes 18 set parallel to one another, the ends of which are set in fluid communication. with the manifold tanks 12, 14. In a known way, the ends of the nest of pipes 18 are fixed to bottom plates 20, 22 connected in a fluid-tight way to the respective manifold tanks 12, 14.
  • Figure 1 illustrates the radiator 10 in the position in which it is mounted on a vehicle. In said position of installation, the manifold tanks 12, 14 extend in a vertical direction, and the pipes 18 in a horizontal direction.
  • The first manifold tank 12 is provided with an inlet connector 24 for the flow of coolant. The inlet connector 24 is set at the top end of the manifold tank 12 and is preferably obtained integrally with the tank 12 during the moulding of the latter.
  • The radiator 10 according to the present invention has an outlet connector 26, which is set, like the inlet connector 24, in the vicinity of the top edge of the radiator. In order to obtain both of the connectors 24, 26 being set at the top edge of the radiator, the present invention envisages an outlet channel 28 for the coolant, which extends parallel to the second manifold tank 14. With reference to Figures 2 to 5, according to a preferred aspect of the present invention, the second manifold tank 14 is obtained integrally with the outlet channel 28 and with an expansion tank 30. The outlet channel 28 is separated from the manifold tank 14 by a wall 32. The manifold tank 14 communicates with the outlet channel 28 by means of an opening 34 located at the bottom end of the manifold tank 14. The outlet channel 28 communicates with the outlet connector 26 located at the top end of the outlet channel 28 and at the top end of the manifold tank 14. The outlet channel 28 further communicates with the expansion tank 30 by means of a passage 36 formed at the bottom end of the outlet channel 28. As is illustrated in Figure 2, the outlet connector 26 is formed in an integral way with a side wall 38, which constitutes a closing lid for closing the outlet channel 28. For reasons of conformation of the dies, the wall 38 cannot be obtained integrally with the channel 28, so that it is produced as a separate component, which is welded, for example via ultrasonic welding, along the perimeter 40 of the outlet channel 28. Once again with reference to Figure 2, the top part of the outlet channel 28 and the top part of the expansion tank 30 are open, and a closing element 42 is fixed, for example by means of ultrasonic welding, on the open top edge 44. The closing element 42 may be provided with an opening 46 for pouring the coolant into the expansion tank 30.
  • With reference, in particular, to Figures 3 and 4, the radiator according to the present invention further comprises an auxiliary channel 48, which sets in communication the top part of the manifold tank 14 with the expansion tank 30, in a point of the latter located below the normal level of the liquid. The auxiliary channel 48 has the function of transferring the gas which collects at the top of the manifold tank 14 into the expansion tank 30.
  • In operation, the flow of coolant enters the radiator 10 through the inlet connector 24 and, after traversing the pipes 18, collects in the manifold tank 14. The coolant passes into the outlet channel 28 through the opening 34 and comes out through the outlet connector 26. The outlet channel 28 basically has the purpose of enabling positioning of the outlet connector 26 at the top edge of the radiator 10. In this way, both of the connectors 24, 26 are readily accessible from above for the operations of removal of the radiator. The positioning upwards of both of the connectors 24, 26 prevents the need for the operator who is carrying out removal of the radiator 10 to intervene in the bottom part of the vehicle, with the consequent need to set the vehicle on a hydraulic power lift or over a pit.

Claims (6)

  1. A radiator for motor vehicles, comprising:
    a first manifold tank (12) and a second manifold tank (14), which are set parallel to one another and set vertically in the position in which the radiator (10) is mounted on a vehicle,
    a plurality of pipes (18) set parallel to one another, connected at their ends to the manifold tanks (12, 14), and
    an inlet connector (24) and an outlet connector (26) of the heat-exchange liquid, connected, respectively, to the first manifold tank (12) and the second manifold tank (14), in which the inlet connector (24) is set at the top end of the first manifold tank (12),
       characterized in that it comprises an outlet channel (28) for the heat-exchange liquid, which extends parallel to the second manifold tank (14), in which said outlet channel (28) communicates with the manifold tank (14) by means of an opening (34) located at the bottom end of the second manifold tank (14) and carries the aforesaid outlet connector (26) at its top end.
  2. The radiator according to Claim 1, characterized in that the aforesaid outlet channel (28) is obtained integrally with the second manifold tank (14).
  3. The radiator according to Claim 2, characterized in that it comprises an expansion tank (30) obtained integrally with the second manifold tank (14) and with the outlet channel (28).
  4. The radiator according to Claim 2, characterized in that the aforesaid outlet connector (26) is obtained integrally with a side wall (38) of the outlet channel (28) obtained as separate component and fixed along a perimeter (40) of the outlet channel (28).
  5. The radiator according to Claim 3, characterized in that it comprises a closing element (42) welded to the top end of the outlet channel (28) and of the expansion tank (30).
  6. The radiator according to Claim 3, characterized in that it comprises an auxiliary channel (48), which sets in communication the top end of the second manifold tank (14) with an area of the expansion tank (30) located below the normal level of the liquid contained in said expansion tank.
EP02425704A 2002-11-15 2002-11-15 A radiator for motor vehicles with piping integrated on a manifold tank Expired - Lifetime EP1420223B1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
PT02425704T PT1420223E (en) 2002-11-15 2002-11-15 RADIATOR FOR MOTORIZED VEHICLES WITH INTEGRATED TUBING IN A DEPOSIT WITH DISTRIBUTION CONDUITS
ES02425704T ES2235001T3 (en) 2002-11-15 2002-11-15 RADIATOR FOR MOTOR VEHICLES WITH INTEGRATED TUBES ON A COLLECTOR TANK.
EP02425704A EP1420223B1 (en) 2002-11-15 2002-11-15 A radiator for motor vehicles with piping integrated on a manifold tank
AT02425704T ATE287074T1 (en) 2002-11-15 2002-11-15 AN MOTOR VEHICLE RADIATOR HAVING PIPES INTEGRATED IN A LINE TANK
DE60202622T DE60202622T2 (en) 2002-11-15 2002-11-15 A radiator for motor vehicles with pipes integrated in a line tank
ARP030104147A AR041944A1 (en) 2002-11-15 2003-11-12 RADIATOR FOR MOTOR VEHICLES WITH PIPE INTEGRATED TO A COLLECTOR CONTAINER
PL363447A PL199496B1 (en) 2002-11-15 2003-11-13 Cooler for motor vehicles
BRPI0305137-4A BR0305137B1 (en) 2002-11-15 2003-11-14 radiator for motor vehicles with piping integrated in a distribution tank.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02425704A EP1420223B1 (en) 2002-11-15 2002-11-15 A radiator for motor vehicles with piping integrated on a manifold tank

Publications (2)

Publication Number Publication Date
EP1420223A1 EP1420223A1 (en) 2004-05-19
EP1420223B1 true EP1420223B1 (en) 2005-01-12

Family

ID=32116370

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02425704A Expired - Lifetime EP1420223B1 (en) 2002-11-15 2002-11-15 A radiator for motor vehicles with piping integrated on a manifold tank

Country Status (8)

Country Link
EP (1) EP1420223B1 (en)
AR (1) AR041944A1 (en)
AT (1) ATE287074T1 (en)
BR (1) BR0305137B1 (en)
DE (1) DE60202622T2 (en)
ES (1) ES2235001T3 (en)
PL (1) PL199496B1 (en)
PT (1) PT1420223E (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020244555A1 (en) * 2019-06-03 2020-12-10 杭州三花研究院有限公司 Heat exchanger

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR102015026378A2 (en) * 2014-10-21 2017-07-11 Modine Manufacturing Company COOLING MODULE WITH A TANK OF INTEGRATED COMPENSATION TO HIM
FR3062714A1 (en) * 2017-02-06 2018-08-10 Valeo Systemes Thermiques THERMAL MANAGEMENT CIRCUIT AND THERMAL EXCHANGER

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1303149B1 (en) * 1998-07-10 2000-10-30 Magneti Marelli Climat Srl THERMAL EXCHANGE MODULE FOR VEHICLES
JP2002081884A (en) * 2000-09-07 2002-03-22 Denso Corp Fixing structure of heat exchanger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020244555A1 (en) * 2019-06-03 2020-12-10 杭州三花研究院有限公司 Heat exchanger

Also Published As

Publication number Publication date
EP1420223A1 (en) 2004-05-19
PL199496B1 (en) 2008-09-30
DE60202622T2 (en) 2006-01-12
ATE287074T1 (en) 2005-01-15
AR041944A1 (en) 2005-06-01
ES2235001T3 (en) 2005-07-01
PL363447A1 (en) 2004-05-17
PT1420223E (en) 2005-05-31
BR0305137A (en) 2004-08-31
BR0305137B1 (en) 2012-06-26
DE60202622D1 (en) 2005-02-17

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