EP3399267A1 - Tube plat pour échangeur de chaleur et échangeur de chaleur - Google Patents
Tube plat pour échangeur de chaleur et échangeur de chaleur Download PDFInfo
- Publication number
- EP3399267A1 EP3399267A1 EP17169138.9A EP17169138A EP3399267A1 EP 3399267 A1 EP3399267 A1 EP 3399267A1 EP 17169138 A EP17169138 A EP 17169138A EP 3399267 A1 EP3399267 A1 EP 3399267A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wall
- tube
- double
- nose
- walled
- 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- Withdrawn
Links
Images
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
- F28D1/03—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 plate-like or laminated conduits
- F28D1/0391—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 plate-like or laminated conduits a single plate being bent to form one or more 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
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2225/00—Reinforcing means
- F28F2225/04—Reinforcing means for conduits
Definitions
- the object of the invention is a flat tube for a heat exchanger and a heat exchanger.
- tubes for heat exchangers for example condensers, which are used to guide a fluid and enable its cooling.
- Such heat exchangers can be implemented in vehicles, e.g. cars. These vehicles are directly exposed to debris such as stones or other objects, either when they are moving or when they are stationary. The stones can travel at significant speed and can impact the heat exchanger, which in most cases is situated in front of the car and is at least partly exposed or can be reached after passing through the radiator grill. Impact of such objects can cause damage to the elements of the heat exchanger, which may lead to leaks of the fluid flowing through them and/or to deterioration of their performance.
- the object of the invention is a flat tube for a heat exchanger, with two open ends defining its longitudinal direction, comprising a first wall and a second wall which are flat and parallel to each other, thereby delimiting the inner space of the tube, wherein one of the lateral sides of the first wall comprises a double-walled nose, the walls of said double-walled nose contacting each other along a contact section, and the lateral side of the second wall is bent to cover said double walled nose, wherein walls of the nose have equal lateral length.
- the contact section of the walls of the double-walled nose runs in parallel to planes of the first wall and the second wall.
- the lateral side of the second wall, bent over the double walled nose, is bent so that it contacts both walls of the double walled nose.
- the lateral side of the second wall, bent over the double walled nose, is also double walled.
- the lateral side of the second wall, bent over the double walled nose consists of one layer.
- the thickness of the reinforced tube nose in lateral direction is in the range [0.5 x tube height ; 1.5 x tube height] and preferentially in the range [0.5 x tube height; tube height].
- Another object of the invention is a heat exchanger comprising a described tube.
- Fig. 1 presents a general shape of a flat tube which is an object of the invention.
- the invention specifically regards tube nose, which is depicted in detail in the following figures.
- the tube is defined by reference to general directions: longitudinal and lateral. These are presented in Fig. 1 , as y axis and x axis, respectively.
- the reinforced tube nose can be located on the front area of the heat exchanger (e.g. condenser), e.g. facing the road.
- the heat exchanger e.g. condenser
- Fig. 2 shows first example of the tube.
- the tube comprises a first wall 1 and a second wall 2, which are flat and parallel to each other. Together they delimit the inner space of the tube.
- the tube has two opened ends, which define a longitudinal direction of the tube and a general path for the fluid flow.
- the tube can further comprise an inner fin 3.
- the presence of fin 3 is however optional.
- One of the lateral sides of the first wall 1 is folded to form a double-walled nose 4 along the longitudinal direction.
- the double-walled nose 4 comprises a contact section 5 facing the delimited space inside the flat tube. This contact section 5 is constituted by two substantially parallel walls of the double-walled nose 4.
- the double-walled nose 4 can be formed in the middle between the first wall 1 and the second wall 2, so that the contact section 5 will also be in the middle between the first wall 1 and the second wall 2. This facilitates a substantially identical resistance from both sides of the tube, i.e. the resistance will be improved substantially identically with respect to stones impacting from the side of the first wall 1 and from the side of the second wall 2, as illustrated in Fig. 3 .
- the double-walled nose 4 (and consequently the contact section 5) at another distance with respect to the first or second walls.
- the double-walled nose 4 located closer to the first wall 1 will contribute more to its resistance from the side of said first wall 1.
- the double-walled nose 4 located nearer the second wall 2 will contribute more to its resistance from the side of said second wall 2.
- the contact section 5 (plane of the contact section) of the double-walled nose 4 can be displaced towards the plane of the first or second wall 1, 2.
- plane it is meant a general plane of the flat portion.
- Such feature may be advantageous in case of an unorthodox arrangement of the tubes, e.g. oriented an angle with respect to driving direction or at angle corresponding to statistically more probable angle of stone impact.
- the contact section 5 is substantially parallel to the first and second walls.
- plane of the contact section 5 is parallel to planes of the first wall 1 and the second wall 2.
- the respective end of the second wall 2 is bent around the double-walled nose 4 so that it encompasses it.
- the lateral end of the second wall 2 forms a side wall 6, which covers the double-walled nose 4 of the first wall 1. This further strengthens the tube. At the same time it protects the double-walled nose 4 and enables the tube to have a unitary, unobtrusive shape.
- Fig. 4 shows the second example of the tube.
- the side wall 6 is also double walled. This double wall extends along the circumference of the double-walled nose 4. This provides a more resistant side wall 6, because it is layered and consequently harder to damage, bend etc.
- Fig. 5 shows the third example of the tube.
- the lateral side of the first wall 1 further comprises secondary folds 7, before and after (above and below) the double-walled nose 4 with contact section 5. These secondary folds 7 improve resistance of the tube at lateral side.
- Fig. 6 shows the fourth example of the tube.
- This example comprises a secondary fold 7, before (above) the double-walled nose 4 with contact section 5.
- This secondary fold 7 improves resistance of the tube at lateral side.
- the side wall 6 is also double walled. This double wall extends along the circumference of the double-walled nose 4. This provides a more resistant side wall 6, because it is layered and consequently harder to damage, bend etc.
- the examples present a contact section 5 of certain lateral length.
- the lateral length of contact section 5 of the double-walled nose 4 is dependent on the lateral length of the walls of the double-walled nose 4.
- the tube according to the invention may be a tube made of a single sheet of material. It can also be made of two sheets of material, constituting for example separately its first and second walls. Consequently, the disclosed nose of the tube can be present on one lateral side of the tube, or both lateral sides of the tube.
- the thickness of the reinforced tube nose can be in the range [0.5 x tube height ; 1.5 x tube height] and preferentially in the range [0.5 x tube height; tube height].
- the tube height here is defined along an axis perpendicular to longitudinal and lateral directions.
- These tubes can be produced by roll forming, similar to the process for currently known tubes with bends or folds.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17169138.9A EP3399267A1 (fr) | 2017-05-02 | 2017-05-02 | Tube plat pour échangeur de chaleur et échangeur de chaleur |
PCT/EP2018/061049 WO2018202630A1 (fr) | 2017-05-02 | 2018-04-30 | Tube plat destiné à un échangeur de chaleur et échangeur de chaleur |
CN201880029472.6A CN111094886B (zh) | 2017-05-02 | 2018-04-30 | 用于热交换器的扁平管和热交换器 |
US16/610,369 US11421944B2 (en) | 2017-05-02 | 2018-04-30 | Flat tube for a heat exchanger and a heat exchanger that is more resistant to debris |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17169138.9A EP3399267A1 (fr) | 2017-05-02 | 2017-05-02 | Tube plat pour échangeur de chaleur et échangeur de chaleur |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3399267A1 true EP3399267A1 (fr) | 2018-11-07 |
Family
ID=58664612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17169138.9A Withdrawn EP3399267A1 (fr) | 2017-05-02 | 2017-05-02 | Tube plat pour échangeur de chaleur et échangeur de chaleur |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP3399267A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU500125B1 (en) | 2021-05-05 | 2022-11-08 | Estra Automotive Systems Luxembourg S A R L | Exchanger tube for a heat exchanger |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19753724A1 (de) * | 1997-12-04 | 1999-06-10 | Behr Gmbh & Co | Wärmeübertrager |
WO2001049443A1 (fr) * | 2000-01-07 | 2001-07-12 | Zexel Valeo Climate Control Corporation | Echangeur thermique |
EP1702710A1 (fr) * | 2003-12-19 | 2006-09-20 | Valeo Thermal Systems Japan Corporation | Procede de production de tube, tube d'echange de chaleur produit par ce procede, et echangeur de chaleur utilisant ce tube |
DE102006016711A1 (de) * | 2006-04-08 | 2007-10-11 | Modine Manufacturing Co., Racine | Flachrohr für Wärmetauscher |
-
2017
- 2017-05-02 EP EP17169138.9A patent/EP3399267A1/fr not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19753724A1 (de) * | 1997-12-04 | 1999-06-10 | Behr Gmbh & Co | Wärmeübertrager |
WO2001049443A1 (fr) * | 2000-01-07 | 2001-07-12 | Zexel Valeo Climate Control Corporation | Echangeur thermique |
EP1702710A1 (fr) * | 2003-12-19 | 2006-09-20 | Valeo Thermal Systems Japan Corporation | Procede de production de tube, tube d'echange de chaleur produit par ce procede, et echangeur de chaleur utilisant ce tube |
DE102006016711A1 (de) * | 2006-04-08 | 2007-10-11 | Modine Manufacturing Co., Racine | Flachrohr für Wärmetauscher |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU500125B1 (en) | 2021-05-05 | 2022-11-08 | Estra Automotive Systems Luxembourg S A R L | Exchanger tube for a heat exchanger |
WO2022233971A1 (fr) | 2021-05-05 | 2022-11-10 | Estra Automotive Systems Luxembourg S.À R.L. | Tube d'échangeur pour un échangeur de chaleur |
DE212022000196U1 (de) | 2021-05-05 | 2024-02-20 | Estra Automotive Systems Luxembourg S.À R.L. | Tauscherrohr für einen Wärmetauscher und Wärmetauscher |
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18D | Application deemed to be withdrawn |
Effective date: 20190508 |