EP2345861A2 - Heat exchanger with extruded multi-chamber manifold with machined bypass - Google Patents
Heat exchanger with extruded multi-chamber manifold with machined bypass Download PDFInfo
- Publication number
- EP2345861A2 EP2345861A2 EP11250048A EP11250048A EP2345861A2 EP 2345861 A2 EP2345861 A2 EP 2345861A2 EP 11250048 A EP11250048 A EP 11250048A EP 11250048 A EP11250048 A EP 11250048A EP 2345861 A2 EP2345861 A2 EP 2345861A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- manifold
- chambers
- chamber
- wall
- bypass
- 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
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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
- F28D1/053—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
- F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
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- 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
- F28F9/0214—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only longitudinal 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
- F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
- F28F2250/04—Communication passages between channels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
Definitions
- the present invention relates generally to heat exchangers, and more particularly, to an extruded multi-chamber manifold with a machined bypass.
- Heat exchanger manifolds must be strong enough to withstand elevated pressures exerted by fluids flowing through the manifold during operation. Many heat exchangers require multiple panels to be put together to allow increased fluid flow. These panels are aligned adjacent to each other and connect to separate chambers. Therefore, there are situations where it is necessary for adjacent chambers of a manifold to be in fluid communication with one another.
- a heat exchanger with a D-shaped manifold which has a single chamber manifold typical of that used in automotive and commercial air conditioning applications.
- the heat exchanger consists of a single row of tubes and fins stacked together to form a panel.
- the panel is capped with the D-shaped manifold on either end.
- Multi-chamber manifolds can pose a problem when extruded as the manifolds made by the extrusion process do not allow fluid bypass.
- fluid communication between chambers typically requires an external bypass between two or more of the above mentioned D-shaped manifolds. This results in increasing the distance the fluid must travel as well as increasing the pressure to unacceptable levels at the external bypass.
- An example heat exchanger with extruded multi-chamber manifolds includes at least two panels, with each panel having a row of at least one channel which communicates fluid.
- the heat exchanger includes a first manifold and a second manifold, the first manifold and the second manifold each having at least two manifold chambers.
- Each panel is attached to a manifold chamber of the first manifold and a manifold chamber of the second manifold, with each chamber having an inner wall and outer wall.
- the outer wall has a surface exposed outside the manifold chambers. There is also an opening through the outer wall including a bypass slot. The bypass slot allows fluid communication between the chambers.
- An example extruded multi-chamber manifold with machined bypass includes at least two manifold chambers. Each of the at least two manifold chambers has a panel attached to it.
- the manifold chamber further includes an inner wall and outer wall.
- the manifold also has at least one bypass slot. There is an opening in the outer wall of the manifold which reaches the bypass slot and is filled with a plug.
- An example method of forming an extruded multi-chamber manifold with internal bypass includes extruding a manifold with at least two manifold chambers. An opening with a seat and a bypass slot is machined in an outer wall and an inner wall of the manifold chamber. A plug is inserted into the seat to seal the manifold chamber.
- a heat exchanger system 26 includes panels 22, a first extruded multi-chamber manifold 16, a second extruded multi-chamber manifold 18, an inlet chamber 12, an outlet chamber 14, and a fluid source 10.
- the fluid source 10 provides fluid to the inlet chamber 12.
- the fluid can be, but is not limited to, water, coolant or refrigerant.
- the panels 22 connect to both the first extruded multi-chamber manifold 16 and the second extruded multi-chamber manifold 18, communicating fluid between them. Fluid can be communicated through the panels in one direction, or single pass, or in multiple directions, or multiple pass.
- an extruded multi-chamber manifold 16 (18 will be similar) is shown having an inner wall 40 and an exposed, outer wall 42. At least two chambers 20 are present in the manifold 16, with an inner wall 40 separating the chambers 20.
- the inner wall 40 is formed through extrusion such that there is no fluid communication between chambers 20 without further machining. Openings 62 are machined into the outer surface 56 of the outer wall 42 and include seats 52 and bypass slots 54. The openings 62 can be spaced a predetermined distance apart from each other down the length of the manifold 16.
- the bypass slot 54 sits inward of the seat 52 in the manifold 16.
- the bypass slot 54 is machined out of the inner wall 40 and extends to the seat 52 in the outer wall 42.
- the bypass slot 54 allows for fluid communication between chambers 20 of the manifold 16.
- the bypass slot 54 can be a different size than the seat 52 to allow for various configurations of chambers 20 and necessary levels of fluid communication.
- a plug 44 is inserted into each seat 52.
- the plug 44 can be welded, or otherwise secured using brazing, epoxy adhesives, or other known means, in place to seal the opening 62. Once in the seat 52, the plug 44 seals the chamber 20.
- the plug 44 can be larger than the bypass slot.
- the plug 44 may create an even surface with the outer wall 42. Alternatively, the plug 44 may sit above or below the outer wall 42, creating an uneven surface.
- Figures 3-5 show one configuration of the seats 52, bypass slots 54, and plugs 44. Other configurations are also possible.
- Figure 6A shows a single pass configuration, where fluid flows within the panels 22 in one direction, from the second extruded multi-chamber manifold 18 to the first extruded multi-chamber manifold 16. Fluid can be communicated between the chambers 20 of each manifold through the bypass slots 54.
- Figure 6B shows a multi-pass configuration where fluid flows within the panels 22 in multiple directions and is able to communicate between chambers 20 through bypass slots 54.
- FIG. 7A a method of creating an extruded multi-chamber manifold 16 with internal bypass is shown.
- An extruded multi-chamber manifold 16 with chambers 20 is created with a solid, inner wall 40.
- an opening 62 including a bypass slot 54 and seat 52 is cut out of the inner wall 40 by machining through the outer wall 42 and into the inner wall 40 using a cutting tool 80.
- the seat 52 can be machined again to be a different size than the bypass slot 54.
- a plug 44 is then inserted into the opening 62 to seal the manifold chambers 20.
- the plug 44 can be welded, or attached by other means, after insertion.
- FIG. 8A the method of creating an extruded multi-chamber manifold 16,18 with internal bypass is shown.
- An extruded multi-chamber manifold 16,18 with chambers 20 is created with a solid, inner wall 40.
- An opening 62 including is machined into outer wall 42 using a cutting tool 80.
- the machined opening 62 first includes a seat 52.
- a bypass slot 54 is cut out of the inner wall 40 by machining into the inner wall 40 inside each seat 52 using a cutting tool 80.
- the bypass slot 54 extends to the seat 52.
- the bypass slot 54 can be a different size than the seat 52.
- a plug 44 is then inserted into the seat 52 to seal the manifold chambers 20.
- the plug 44 can be welded into place after insertion.
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- 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)
Abstract
Description
- The present invention relates generally to heat exchangers, and more particularly, to an extruded multi-chamber manifold with a machined bypass.
- Heat exchanger manifolds must be strong enough to withstand elevated pressures exerted by fluids flowing through the manifold during operation. Many heat exchangers require multiple panels to be put together to allow increased fluid flow. These panels are aligned adjacent to each other and connect to separate chambers. Therefore, there are situations where it is necessary for adjacent chambers of a manifold to be in fluid communication with one another.
- A heat exchanger with a D-shaped manifold has been proposed which has a single chamber manifold typical of that used in automotive and commercial air conditioning applications. The heat exchanger consists of a single row of tubes and fins stacked together to form a panel. The panel is capped with the D-shaped manifold on either end.
- Multi-chamber manifolds can pose a problem when extruded as the manifolds made by the extrusion process do not allow fluid bypass. Where multi-chamber manifolds are necessary, fluid communication between chambers typically requires an external bypass between two or more of the above mentioned D-shaped manifolds. This results in increasing the distance the fluid must travel as well as increasing the pressure to unacceptable levels at the external bypass.
- When heat exchangers have multiple panels, individual headers will not suffice. It is necessary to have a manifold which can accommodate each panel individually, thus requiring multiple manifolds or a multi-chamber manifold.
- An example heat exchanger with extruded multi-chamber manifolds includes at least two panels, with each panel having a row of at least one channel which communicates fluid. The heat exchanger includes a first manifold and a second manifold, the first manifold and the second manifold each having at least two manifold chambers. Each panel is attached to a manifold chamber of the first manifold and a manifold chamber of the second manifold, with each chamber having an inner wall and outer wall. The outer wall has a surface exposed outside the manifold chambers. There is also an opening through the outer wall including a bypass slot. The bypass slot allows fluid communication between the chambers.
- An example extruded multi-chamber manifold with machined bypass includes at least two manifold chambers. Each of the at least two manifold chambers has a panel attached to it. The manifold chamber further includes an inner wall and outer wall. The manifold also has at least one bypass slot. There is an opening in the outer wall of the manifold which reaches the bypass slot and is filled with a plug.
- An example method of forming an extruded multi-chamber manifold with internal bypass includes extruding a manifold with at least two manifold chambers. An opening with a seat and a bypass slot is machined in an outer wall and an inner wall of the manifold chamber. A plug is inserted into the seat to seal the manifold chamber.
- These and other features of the present invention can be best understood from the following specification and drawings, the following of which is a brief description.
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Figure 1 is a perspective view of a heat exchanger with extruded multi-chamber manifold. -
Figure 2 is a cross-section of the extruded multi-chamber manifold. -
Figure 3 is a top view of the extruded multi-chamber manifold with both plugged and unplugged openings. -
Figure 4 is a sectional, top view of the extruded multi-chamber manifold showing the machined seat and bypass slot. -
Figure 5 is a sectional, top view of the extruded multi-chamber manifold showing the bypass slot and a plug filling the seat. -
Figure 6A is a front view of the heat exchanger showing a second example of fluid movement between a first extruded manifold and a second extruded manifold. -
Figure 6B is a front view of the heat exchanger showing a first example of fluid movement between a first extruded manifold and a second extruded manifold. -
Figure 7A is a step in a first example method for forming an extruded multi-chamber manifold with machined bypass. -
Figure 7B is another step in the first example method for forming an extruded multi-chamber manifold with machined bypass. -
Figure 7C is another step in the first example method for forming an extruded multi-chamber manifold with machined bypass. -
Figure 8A is a step in a second example method for forming an extruded multi-chamber manifold with machined bypass. -
Figure 8B is another step in the second example method for forming an extruded multi-chamber manifold with machined bypass. -
Figure 8C is another step in the second example method for forming an extruded multi-chamber manifold with machined bypass. - Referring to
Figure 1 , aheat exchanger system 26 includespanels 22, a first extrudedmulti-chamber manifold 16, a second extrudedmulti-chamber manifold 18, aninlet chamber 12, anoutlet chamber 14, and afluid source 10. Thefluid source 10 provides fluid to theinlet chamber 12. The fluid can be, but is not limited to, water, coolant or refrigerant. Thepanels 22 connect to both the first extrudedmulti-chamber manifold 16 and the second extrudedmulti-chamber manifold 18, communicating fluid between them. Fluid can be communicated through the panels in one direction, or single pass, or in multiple directions, or multiple pass. - Referring to
Figures 2-5 , with continuing reference toFigure 1 , an extruded multi-chamber manifold 16 (18 will be similar) is shown having aninner wall 40 and an exposed,outer wall 42. At least twochambers 20 are present in themanifold 16, with aninner wall 40 separating thechambers 20. Theinner wall 40 is formed through extrusion such that there is no fluid communication betweenchambers 20 without further machining.Openings 62 are machined into theouter surface 56 of theouter wall 42 and includeseats 52 andbypass slots 54. Theopenings 62 can be spaced a predetermined distance apart from each other down the length of themanifold 16. Thebypass slot 54 sits inward of theseat 52 in themanifold 16. Thebypass slot 54 is machined out of theinner wall 40 and extends to theseat 52 in theouter wall 42. Thebypass slot 54 allows for fluid communication betweenchambers 20 of themanifold 16. Thebypass slot 54 can be a different size than theseat 52 to allow for various configurations ofchambers 20 and necessary levels of fluid communication. After thebypass slot 54 is created, aplug 44 is inserted into eachseat 52. Theplug 44 can be welded, or otherwise secured using brazing, epoxy adhesives, or other known means, in place to seal theopening 62. Once in theseat 52, theplug 44 seals thechamber 20. Theplug 44 can be larger than the bypass slot. Theplug 44 may create an even surface with theouter wall 42. Alternatively, theplug 44 may sit above or below theouter wall 42, creating an uneven surface.Figures 3-5 show one configuration of theseats 52,bypass slots 54, and plugs 44. Other configurations are also possible. - Referring to
Figures 6A and 6B , fluid flow between the extrudedmulti-chamber manifolds Figure 6A shows a single pass configuration, where fluid flows within thepanels 22 in one direction, from the second extrudedmulti-chamber manifold 18 to the first extrudedmulti-chamber manifold 16. Fluid can be communicated between thechambers 20 of each manifold through thebypass slots 54.Figure 6B shows a multi-pass configuration where fluid flows within thepanels 22 in multiple directions and is able to communicate betweenchambers 20 throughbypass slots 54. These embodiments showmanifolds 16 having threechambers 20 with slots found as above. - Referring to
Figure 7A , a method of creating an extrudedmulti-chamber manifold 16 with internal bypass is shown. An extrudedmulti-chamber manifold 16 withchambers 20 is created with a solid,inner wall 40. Referring toFigure 7B , anopening 62 including abypass slot 54 andseat 52 is cut out of theinner wall 40 by machining through theouter wall 42 and into theinner wall 40 using acutting tool 80. Theseat 52 can be machined again to be a different size than thebypass slot 54. Referring toFigure 7C , aplug 44 is then inserted into theopening 62 to seal themanifold chambers 20. Theplug 44 can be welded, or attached by other means, after insertion. - Alternatively, referring to
Figure 8A , the method of creating an extrudedmulti-chamber manifold multi-chamber manifold chambers 20 is created with a solid,inner wall 40. Anopening 62 including is machined intoouter wall 42 using acutting tool 80. The machinedopening 62 first includes aseat 52. Referring toFigure 8B , abypass slot 54 is cut out of theinner wall 40 by machining into theinner wall 40 inside eachseat 52 using acutting tool 80. Thebypass slot 54 extends to theseat 52. Thebypass slot 54 can be a different size than theseat 52. Referring toFigure 8C , aplug 44 is then inserted into theseat 52 to seal themanifold chambers 20. Theplug 44 can be welded into place after insertion. - Although a preferred embodiment of this invention has been disclosed, a worker of ordinary skill in this art would recognize that certain modifications would come within the scope of this invention. For that reason, the following claims should be studied to determine the true scope and content of this invention.
Claims (11)
- A method of forming an extruded multi-chamber manifold with internal bypass comprising:creating an extruded manifold with at least two manifold chambers;machining at least one opening in an outer wall and an inner wall of the manifold chambers, the opening including a bypass slot and a seat; andinserting a plug into the bypass slot to seal the at least two manifold chambers, the plug being located in the seat.
- The method of claim 1, wherein the method further comprises welding the plug.
- The method of claim 1 or 2, wherein an additional step is included comprising machining the seat to be wider than the bypass slot.
- The method of claim 1, 2 or 3, wherein the bypass slot and the seat are machined separately.
- An extruded multi-chamber manifold comprising:a manifold having at least two manifold chambers, each of the at least two manifold chambers including an inner wall between the two chambers, and an outer wall; andan opening in the outer wall which extends to a bypass slot formed in the inner wall, the opening being filled with a plug.
- The extruded multi-chamber manifold of claim 5, wherein the bypass slot allows fluid communication between at least two manifold chambers.
- The extruded multi-chamber manifold of claim 6, wherein the manifold includes at least three manifold chambers, with at least one manifold chamber lacking a bypass slot.
- A heat exchanger comprising:at least two panels, each panel comprising at least one channel;a first manifold and a second manifold as claimed in claims 5, 6 or 7, each panel being attached to a manifold chamber of the first manifold and of the second manifold; andthe bypass slot allowing fluid communication between two manifold chambers and two panels.
- The heat exchanger of claim 8, wherein panels connected to the first manifold and the second manifold allow fluid flow in only one direction.
- The heat exchanger of claim 8 or 9, wherein the bypass plug is sealed to the manifold by welding.
- A heat exchanger comprising:at least two panels, each panel comprising at least one channel;a first manifold and a second manifold, the first manifold and second manifold each having at least two manifold chambers, each panel attached to a manifold chamber of the first manifold and of the second manifold, the first manifold chambers and second manifold chambers including an inner wall and outer wall, the outer wall having a surface exposed outside the manifold chambers; andan opening in the outer wall, the opening including a bypass slot, the bypass slot allowing fluid communication between two manifold chambers.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/688,297 US20110174472A1 (en) | 2010-01-15 | 2010-01-15 | Heat exchanger with extruded multi-chamber manifold with machined bypass |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2345861A2 true EP2345861A2 (en) | 2011-07-20 |
EP2345861A3 EP2345861A3 (en) | 2013-12-25 |
EP2345861B1 EP2345861B1 (en) | 2018-09-19 |
Family
ID=43875290
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11250048.3A Not-in-force EP2345861B1 (en) | 2010-01-15 | 2011-01-17 | Heat exchanger with extruded multi-chamber manifold with machined bypass |
Country Status (4)
Country | Link |
---|---|
US (1) | US20110174472A1 (en) |
EP (1) | EP2345861B1 (en) |
CN (1) | CN102128557B (en) |
RU (1) | RU2470244C2 (en) |
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JP5136050B2 (en) * | 2007-12-27 | 2013-02-06 | 株式会社デンソー | Heat exchanger |
JP4569677B2 (en) * | 2008-07-08 | 2010-10-27 | トヨタ自動車株式会社 | Hybrid car |
JP2012107808A (en) * | 2010-11-17 | 2012-06-07 | Denso Corp | Heat exchanger |
-
2010
- 2010-01-15 US US12/688,297 patent/US20110174472A1/en not_active Abandoned
-
2011
- 2011-01-14 CN CN2011100074393A patent/CN102128557B/en not_active Expired - Fee Related
- 2011-01-17 EP EP11250048.3A patent/EP2345861B1/en not_active Not-in-force
- 2011-01-17 RU RU2011102325/06A patent/RU2470244C2/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
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None |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11460256B2 (en) | 2016-06-23 | 2022-10-04 | Modine Manufacturing Company | Heat exchanger header |
FR3059411A1 (en) * | 2016-11-30 | 2018-06-01 | Valeo Systemes Thermiques | THERMAL EXCHANGER COLLECTOR BOX FOR INTAKE MODULE OF AN INTERNAL COMBUSTION ENGINE |
WO2018100312A1 (en) * | 2016-11-30 | 2018-06-07 | Valeo Systemes Thermiques | Heat exchanger header box for internal combustion engine intake module |
EP3418667A1 (en) * | 2017-06-21 | 2018-12-26 | Modine Manufacturing Company | Heat exchanger and header for the same |
Also Published As
Publication number | Publication date |
---|---|
CN102128557B (en) | 2013-12-04 |
RU2470244C2 (en) | 2012-12-20 |
EP2345861A3 (en) | 2013-12-25 |
EP2345861B1 (en) | 2018-09-19 |
CN102128557A (en) | 2011-07-20 |
US20110174472A1 (en) | 2011-07-21 |
RU2011102325A (en) | 2012-07-27 |
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