EP3246646A1 - Refroidisseur, en particulier de gaz pour un système de refroidissement - Google Patents

Refroidisseur, en particulier de gaz pour un système de refroidissement Download PDF

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Publication number
EP3246646A1
EP3246646A1 EP16170580.1A EP16170580A EP3246646A1 EP 3246646 A1 EP3246646 A1 EP 3246646A1 EP 16170580 A EP16170580 A EP 16170580A EP 3246646 A1 EP3246646 A1 EP 3246646A1
Authority
EP
European Patent Office
Prior art keywords
cover
inner housing
inlet
outlet
manifold
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16170580.1A
Other languages
German (de)
English (en)
Other versions
EP3246646B1 (fr
Inventor
Dominik Sporna
Boleslaw Kurowski
Dariusz BUREK
Wojciech MATYSZKOWICZ
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.)
Valeo Systemes Thermiques SAS
Original Assignee
Valeo Systemes Thermiques SAS
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.)
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Publication date
Application filed by Valeo Systemes Thermiques SAS filed Critical Valeo Systemes Thermiques SAS
Priority to EP16170580.1A priority Critical patent/EP3246646B1/fr
Publication of EP3246646A1 publication Critical patent/EP3246646A1/fr
Application granted granted Critical
Publication of EP3246646B1 publication Critical patent/EP3246646B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05375—Assemblies of conduits connected to common headers, e.g. core type radiators with particular pattern of flow, e.g. change of flow direction
    • 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
    • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
    • F28F9/0209—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2270/00—Thermal insulation; Thermal decoupling
    • F28F2270/02—Thermal insulation; Thermal decoupling by using blind conduits

Definitions

  • the present invention relates to a cooler, in particular gas cooler to a cooling system.
  • a gas cooler for a cooling system comprising an inlet and outlet zone of a cooling medium, each of which contains a set of flat tubes of a cooling assembly arranged parallel to each other and an inlet/outlet manifold and an inner manifold.
  • the flat tubes of inlet and outlet zones are connected at opposite ends to the inlet/outlet and inner manifolds for supplying a cooling medium from the inlet zone, guiding it to the outlet zone and discharging it from the outlet zone.
  • the manifold consists of two elements in the form of the inner housing and the cover which is applied on and bent over the inner housing.
  • the inner housing which is an uniform element having a closed profile is provided with at least one longitudinal channel defined therein and plurality slots on one of the surfaces of the housing.
  • the slots are in fluid communication with at least one longitudinal channel.
  • the slots formed in the cover are in a position corresponding to positions of slots of the housing and are adapted for inserting flat tubes of the cooling assembly into them.
  • the object of the present invention is to provide a cooler, in particular a gas cooler to a cooling system to be able to achieve optimum performance and drop of internal pressure in the cooler.
  • the object of the invention is to improve the level of a cooler efficiency.
  • a cooler that uses a separation of an inlet and outlet zones of the cooling medium through the insulating tube, which is not included into the cooling circuit ensured achieving optimal performance of the cooler and the internal pressure drop.
  • the heat conduction between the inlet and outlet zones has been limited.
  • the insulating tube having the same length as all the other tubes through which the cooling medium flows was used. Due to the fact that one end of the insulating tube will be fixed only on the inlet/outlet manifold side, while the opposite end of the insulating tube will be not inserted into the inner housing of the inner manifold, the additional length of the tube is equalized in the outlet zone of the inlet/outlet manifold.
  • the inner housing of the inlet/outlet manifold was divided into two separate segments ended with plugs (baffles). All these elements were attached on one cover of the inlet/outlet manifold.
  • a central slot is formed by cutting (not stamping) in the opposite direction than the other stamped slots of the cover. This is very important because of the integration of the cover to the inner housing so as to form the inner manifold. In this case, an additional slot collar cannot be used because of the possibility of collision with the inner housing. Both of these elements have to be good fitted together. Cutting the slot profile in the same direction is not acceptable because there is a risk of burrs on the edges of the slot (at the slot exit).
  • Figs. 1 and 2 show the gas cooler 1 for a cooling system comprising the inlet zone I and the outlet zone II of a cooling medium, each of which contains a set of flat tubes 6 arranged parallel to each other.
  • the flat tubes 6 of the inlet and outlet zones I, II are connected at opposite ends to the inlet/outlet manifolds 1a and the inner manifold 1b for supplying a cooling medium from the inlet zone I, guiding it to the outlet zone II and discharging it from the outlet zone II.
  • the manifolds 1a and 1b used herein comprise the cover 2, 2' and the inner housing 4, 4'.
  • the cover 2, 2' is manufactured from the plate of the thickness in range 0,8 to 2 mm, preferably of aluminium and/or its alloys by means of the stamping process and is bent in such manner that it substantially replicates the external shape of the inner housing 4, 4'.
  • the cover 2, 2' can be plated on one or both sides.
  • the cover 2, 2' shown in fig. 3 and 4 and fig. 5 has many slots 7 arranged in a single row, through which, during the application of the manifold 1a and 1b, the flat tubes 6 of the gas cooler 1 are inserted.
  • the cover 2,2' slots 7 are precisely made slots, so that the flat tubes 6 having inner passages are tightly received in these slots 7.
  • the inner housing 4, 4' is of known from the prior art hollow profile and is made by an extrusion process. It has a thick and solid walls which make it capable of withstanding high pressure, and it includes in its interior separate longitudinal channels (not shown) for the flow of a cooling medium.
  • the inner housing 4, 4' is also provided in its interior with stopping elements (not shown), against which the inserted flat tubes 6 abut.
  • the inner housing 4, 4' has also a plurality of slots (not shown) at positions corresponding to the positions of slots 7 in the cover 2.
  • the slots (not shown) of the inner housing 4, 4' need not be made with such accurate dimensions as the slots 7 of the cover 2, 2', that is, their dimensions did not have to be exactly matched to the dimensions of the flat tubes 6;it is sufficient that the slots of the inner housing 4, 4' will have a size larger, or at least the same, as the size of flat tubes 6, and hence also the slots 7 of the cover 2, 2'.
  • the slots of the inner housing 4,4' can be made by a process using a saw milling, which process does not have to be precise.
  • the slots(not shown) of the inner housing 4, 4' are further in fluid communication with the channels (not shown) of the inner housing 4, 4'.
  • the inner housing 4, 4' is also preferably made of aluminium and/or its alloys. The cover 2, 2' is so applied on the inner housing 4,4' that one surface of the inner housing 4,4' is exposed as it is known from the prior art.
  • the insulating tube 5 was inserted which is located longitudinally in relation to said flat tubes 6 of these zones for their separation and isolation.
  • the insulating tube 5 has two opposite ends. One end of the insulating tube 5 is disposed in the inlet/outlet manifold 1a while the other end, opposite end is disposed in the inner manifold 1b.
  • the inner housing 4' of the inner manifold 1b is a uniform element ( see right sides of figs.2-4 ).
  • the inner housing 4 In order to attach the insulating tube 5 in the inlet/outlet manifold 1a, the inner housing 4 according to the invention was divided in two segments 4a, 4b (see left sides of the figs.2-4 ). The segments have two inner ends facing each other. The inner ends are closed by means of baffles 3 and are arrange at a distance to each other as is best seen in fig. 2 , fig. 3 and fig. 5 (see left side).
  • the cover 2 which attached on the inner housing 4 of the inlet/outlet manifold 1a is formed in one piece.
  • the cover 2 is provided with the central slot 8 formed and positioned at the location of the insulating tube 5 for receiving one end of said insulating tube 5 and placing it between the segments 4a and 4b of the inner housing 4 of the inlet/outlet manifold 1a.
  • said central slot 8 of the cover 2 is the slot cut from its inner side, which is intended to come into contact with the housing 4.
  • an opposite other end of the insulating tube 5 is located in the inner manifold 1b in front of the outer surface of the cover 2' and in front of the central slot 8 of the cover 2'( see fig.4 ).
  • the cover 2' of the inner manifold 1b in the location area of the insulating tube 5 has a continuous surface free of the slot 8.
  • the insulating tube 5 has the same length as the flat tubes 6 through which the cooling medium flows. Due to the fact that one end of the insulating tube 5 will be attached only to the inlet/outlet manifold 1a side, while the opposite end of the insulating tube 5 is not inserted into the inner housing 4' of the inner manifold 1b, the additional length of the tube 5 was equalized in the outlet zone of the inlet/outlet manifold 1a.
  • the central slot 8 cannot be a slot stamped in a conventional manner due to the observed collision with the inner housing 4' of the inner manifold 1b (see fig. 6 ) .
  • the level of porosity is higher because of the small distance of the area to be soldered without degassing, i.e. the distance between the last slot 7 for the inlet zone I and the first slot 7 of the outlet zone II is 2.5 times larger than between the standard slots.
  • the central slot 8 is formed by cutting (not stamping) in the opposite direction than the other stamped slots 7 of the cover 2,2' .
  • This is very important because of the integration of the cover 2' to the inner housing 4' so as to form the inner manifold 1b. In this case, an additional slot collar cannot be used because of the possibility of collision with the inner housing 4'. Both of these elements have to be good fitted together. Cutting the central slot 8 of the cover 2,2' in the same direction is not acceptable because there is a risk of burrs on the edges of the central slot 8.
  • the said central slot 8 has a width from 0.5 to 3.0 mm.
  • the size of slots (not shown) in the inner housing 4 is at least equal to or greater than the size of slots 7 in the cover 2 and 2'.

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)
EP16170580.1A 2016-05-20 2016-05-20 Refroidisseur, en particulier de gaz pour un système de refroidissement Active EP3246646B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16170580.1A EP3246646B1 (fr) 2016-05-20 2016-05-20 Refroidisseur, en particulier de gaz pour un système de refroidissement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16170580.1A EP3246646B1 (fr) 2016-05-20 2016-05-20 Refroidisseur, en particulier de gaz pour un système de refroidissement

Publications (2)

Publication Number Publication Date
EP3246646A1 true EP3246646A1 (fr) 2017-11-22
EP3246646B1 EP3246646B1 (fr) 2023-01-04

Family

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Family Applications (1)

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EP16170580.1A Active EP3246646B1 (fr) 2016-05-20 2016-05-20 Refroidisseur, en particulier de gaz pour un système de refroidissement

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EP (1) EP3246646B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3916332A1 (fr) * 2020-05-27 2021-12-01 Valeo Autosystemy SP. Z.O.O. Échangeur de chaleur comprenant un restricteur

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1895260A2 (fr) * 2006-08-22 2008-03-05 Delphi Technologies, Inc. Échangeur thermique de combinaison ayant une boîte collectrice améliorée
US20090078399A1 (en) * 2007-09-21 2009-03-26 Denso Corporation Combined heat exchanger
WO2011005986A2 (fr) * 2009-07-10 2011-01-13 Johnson Controls Technology Company Echangeur thermique multicanaux doté d’un espacement d’ailette différent
US20130075069A1 (en) * 2011-09-26 2013-03-28 Trane International Inc. Brazed microchannel heat exchanger with thermal expansion compensation
EP2960609A1 (fr) * 2014-06-26 2015-12-30 Valeo Autosystemy SP. Z.O.O. Collecteur, en particulier pour une utilisation dans un système de refroidissement d'un refroidisseur

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1895260A2 (fr) * 2006-08-22 2008-03-05 Delphi Technologies, Inc. Échangeur thermique de combinaison ayant une boîte collectrice améliorée
US20090078399A1 (en) * 2007-09-21 2009-03-26 Denso Corporation Combined heat exchanger
WO2011005986A2 (fr) * 2009-07-10 2011-01-13 Johnson Controls Technology Company Echangeur thermique multicanaux doté d’un espacement d’ailette différent
US20130075069A1 (en) * 2011-09-26 2013-03-28 Trane International Inc. Brazed microchannel heat exchanger with thermal expansion compensation
EP2960609A1 (fr) * 2014-06-26 2015-12-30 Valeo Autosystemy SP. Z.O.O. Collecteur, en particulier pour une utilisation dans un système de refroidissement d'un refroidisseur

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3916332A1 (fr) * 2020-05-27 2021-12-01 Valeo Autosystemy SP. Z.O.O. Échangeur de chaleur comprenant un restricteur
WO2021239329A1 (fr) * 2020-05-27 2021-12-02 Valeo Autosystemy Sp. Z O.O. Échangeur de chaleur doté d'un restricteur

Also Published As

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EP3246646B1 (fr) 2023-01-04

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