EP3006884B1 - Röhre für einen Wärmetauscher - Google Patents

Röhre für einen Wärmetauscher Download PDF

Info

Publication number
EP3006884B1
EP3006884B1 EP14382382.1A EP14382382A EP3006884B1 EP 3006884 B1 EP3006884 B1 EP 3006884B1 EP 14382382 A EP14382382 A EP 14382382A EP 3006884 B1 EP3006884 B1 EP 3006884B1
Authority
EP
European Patent Office
Prior art keywords
dimple
point
flow channel
tube
dimples
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.)
Not-in-force
Application number
EP14382382.1A
Other languages
English (en)
French (fr)
Other versions
EP3006884A1 (de
Inventor
Rafael Juliana
Manuel Lorenzo
Salvador GARCÍA GONZÁLEZ
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.)
BorgWarner Emissions Systems Spain SL
Original Assignee
BorgWarner Emissions Systems Spain SL
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 BorgWarner Emissions Systems Spain SL filed Critical BorgWarner Emissions Systems Spain SL
Priority to EP14382382.1A priority Critical patent/EP3006884B1/de
Priority to KR1020150140791A priority patent/KR20160042182A/ko
Priority to BR102015025607A priority patent/BR102015025607A2/pt
Priority to CN201510796004.XA priority patent/CN105486141A/zh
Priority to US14/981,555 priority patent/US20160109188A1/en
Publication of EP3006884A1 publication Critical patent/EP3006884A1/de
Application granted granted Critical
Publication of EP3006884B1 publication Critical patent/EP3006884B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • 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
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/04—Tubular elements of cross-section which is non-circular polygonal, e.g. rectangular
    • 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
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F28D7/163—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
    • 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
    • F28F1/025—Tubular elements of cross-section which is non-circular with variable shape, e.g. with modified tube ends, with different geometrical features
    • 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
    • F28F2001/027—Tubular elements of cross-section which is non-circular with dimples
    • 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
    • F28F2250/10—Particular pattern of flow of the heat exchange media
    • 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
    • F28F3/042—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 local deformations of the element
    • 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
    • F28F3/042—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 local deformations of the element
    • F28F3/044—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 local deformations of the element the deformations being pontual, e.g. dimples

Definitions

  • the present invention relates to a tube for a heat exchanger comprising a region with dimples according to a specific pattern such that it increases the degree of heat exchange with low pressure drop.
  • a tube according to the preamble of claim 1 is known from US 2014/0158328 A1 .
  • the use of a tube for a heat exchanger according to the invention in heat exchangers for EGR (Exhaust Gas Recirculation) systems is of particular interest.
  • the present invention is also considered of interest for the environment as it increases the efficiency of the heat exchangers for which it is designed.
  • Heat exchangers are devices promoting heat transfer between two fluids through an exchange surface which prevents the mixing of both fluids.
  • the amount of transferred heat is proportional to the exchange surface and also proportional to the exchange rate per unit area.
  • the heat exchange rate per unit area depends primarily on flow conditions around the exchange surface and on fluid properties. Given that convective heat transfer mechanisms are much more efficient than diffusive heat transfer mechanisms, solutions used in the state of the art seek to enhance convection in the vicinity of the exchange surface.
  • fins One of the means for increasing convection in the vicinity of the exchange surface is the use of fins.
  • the most widely used fins are projections in the form of plates emerging from the surface. Fins have a dual effect on the flow flowing in the vicinity of the exchange surface, the first effect being an increase in the effective surface in contact with the fluid since the exchange surface remains the same except for the area where the fin starts, plus the area on both sides of the fin; and the second effect being an increase in turbulence in the vicinity of the exchange surface.
  • a high pressure drop involves the need for higher propulsion energy.
  • the pressure drop allows establishing, together with heat exchange rate, the overall degree of efficiency of the heat exchanger.
  • An efficient heat exchanger therefore requires not only a high heat exchange rate but also low pressure drop.
  • a high heat exchange rate allows reducing the volume necessary for housing the exchange surface for specific heat requirements, for example.
  • Hybrid tubes are tubes formed by means of sheet metal the shape of which is of a planar configuration, i.e., according to the section thereof, it has two parallel planar segments laterally closed by means of respective curved segments.
  • This tube having a planar configuration has a second part formed by a sheet with several bends forming fins where this sheet is trapped between the two planar surfaces.
  • Such tube is very efficient as regards exchange rate but has specific problems due to the thermal expansion effect of the inner sheet, for example, which can cause fatigue in areas where this expansion generates stresses. This is the case of the tube embedment area, for example, where expansion of the inner part is limited by the embedment.
  • An alternative to such tubes is a tube also having a planar configuration containing dimples on at least one of its faces.
  • Dimples are not as efficient as fins since they cannot be compacted as much nor can they increase the exchange area to the same extent, but they have the advantage of not having the expansion problems indicated above and of increasing tube rigidity.
  • the conventional way of manufacturing such tubes is based on a drawn metal sheet that is subsequently bent according to a longitudinal direction until the tube is closed.
  • the tube is closed by means of a longitudinally extending weld bead joining the edges facing one another, for example.
  • Patterns that are modified downstream to take into account flow variations due to the influence of dimples located upstream are also known. Nevertheless, such patterns make manufacturing the tube difficult since the same mold cannot be used in stamping along the entire length of the tube or actuators modifying the depth of the dimples as the sheet stamping operation for obtaining the tube progresses are required in machines.
  • the present invention relates to a tube incorporating dimples for increasing the heat transfer rate which allows overcoming the drawbacks identified above using a dimple pattern combining a high heat exchange rate and a low pressure drop.
  • the tube for a heat exchanger is a tube having a flattened configuration comprising a first essentially planar face and a second essentially planar face parallel to and spaced from the first face.
  • the flattened configuration of the tube must therefore be interpreted by the presence of the first planar face and the second planar face arranged parallel to one another and both faces being connected by side walls.
  • the side walls can have any configuration, the most common embodiments use a configuration in a semicircular segment according to the section of the tube.
  • At least one face has a plurality of dimples configured according to a pattern that is repeated along the longitudinal direction X-X' of the tube.
  • the longitudinal direction of the tube is the direction along which the directrix of the tube extends.
  • the pattern is configured by means of a plurality of groups of dimple alignments covering the width of the planar face.
  • the dimples usually have a fillet radius in the root so that stamping does not generate excessive residual stresses or deformation does not weaken the sheet. This fillet radius causes a certain spacing between other dimples or the walls of the tube so the indication that the dimples cover the width of the planar face must be interpreted to mean that there can be a transition area or a passage channel between the dimples located on the sides of the planar face and the walls of the tube.
  • the plurality of groups of alignments complies with:
  • the pattern contains elongated dimples and point dimples.
  • the elongated dimples have a preferred direction. When a group of dimples is indicated as being aligned in a specific direction, it must be interpreted as the elongated dimples extending with the orientation of the alignment, and furthermore the axis along which they extend also passes through the locations of the point dimples except for possible minor deviations.
  • each group which is formed by the plurality of dimples has an oblique orientation Y-Y' towards one and the same side. This orientation leads to the existence of speed components that are also oblique but does not reorient the entire flow in this direction.
  • the strategic position of passage sites with continuity between consecutively arranged groups of dimples generates preferred passage channels oriented either in the longitudinal direction or even in the oblique direction but with an opposite inclination with respect to the oblique direction Y-Y' according to the symmetry defined by the longitudinal axis X-X'.
  • the special configuration according to the present invention maintains a large number of dimples having the effect of a high degree of turbulence, but it does not significantly reduce the effective section since the formation of channels as established according to the particular dimple pattern according to the invention maintains a flow with low pressure drop since the flow finds preferred passage channels.
  • preferred passage channels depends not only on the relative position of the space between dimples downstream of a specific channel but also on the influence of other surrounding dimples.
  • the final behavior of a specific dimple design cannot be predicted due to this strong link between neighboring dimples both laterally and in both the downstream and upstream flow direction, and much less so when the use of a pattern which is periodically reproducible along the length of the tube is of interest such as the case where there are changes from one pattern to the next in the downstream flow.
  • the pattern object of the present invention has been proven to efficiently solve the described drawbacks.
  • the combination of a distribution of groups of dimples in one direction combined with the channels formed between consecutively arranged sets has been proven to have an perturbing influence on the surrounding flow extending a smaller distance than those known in the state of the art according to the direction perpendicular to the plane on which the dimples are arranged.
  • This allows the symmetrical arrangement on both opposite faces of the tube to continue to maintain the increase in heat transfer by pattern shown by the use of a pattern on a single face; i.e., the flow modified by the pattern on one face does not negatively interfere with the flow modified by the dimple pattern of the opposite face, something that does occur with other patterns when they are located facing one another.
  • the configuration of the pattern proposed by the invention causes vortices to be generated downstream of the dimples which are then homogenized as a result of the fluid flow established through specific preferred channels that are generated with the spaces between dimples.
  • an S-shaped or similarly shaped path with vortices is formed, successfully increasing heat transfer such that it makes up for the pressure drop resulting from the dimples.
  • the present invention relates to a tube for a heat exchanger showing high convective heat transfer without significant pressure drop.
  • the configuration of the tube is planar, i.e., formed by two laterally connected parallel planar surfaces where there is a plurality of dimples according to a specific pattern located on one or both planar faces.
  • Figure 1 shows a tube according to an embodiment having a flattened configuration.
  • the pattern shows a plurality of dimples (A, B, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10) configured according to a pattern that is repeated along the longitudinal direction X-X' of the tube.
  • Direction X-X' is the longitudinal direction of the tube.
  • the group of dimples can be repeated along the length of the tube as many times as necessary.
  • the pattern is configured by means of a plurality of groups of dimple alignments covering the width of the planar face, with the understanding that there is a fillet radius between the side dimples and the edge.
  • the plurality of groups of alignments are aligned according to one and the same direction Y-Y' arranged obliquely between 40° and 50° degrees with respect to the longitudinal direction X-X'. In this embodiment shown in Figure 1 , the angle of the oblique axis Y-Y' is 45 degrees.
  • the pattern is formed by at least four groups.
  • the first group is formed by two dimples (A, 1), a first elongated dimple (A) extending according to the oblique direction Y-Y' aligned with a first point dimple (1) such that a first flow channel (C1) is established between the elongated dimple (A) and the point dimple (1).
  • the flow channel is a gap between the dimples, i.e., the first elongated dimple (A) and the first point dimple (1).
  • a flow channel will be understood hereinafter as such gaps between dimples.
  • the flow can go through the position of a dimple since said dimple does not reach the opposite wall of the tube. Nevertheless, it imposes oblique speed components.
  • the passage channels are not subjected to this imposition that laterally diverts part of the flow and allows recovering either a longitudinal trajectory or even also an oblique trajectory but with an inclination opposite that of the Y-Y' axis with respect to the X-X' axis.
  • the second group is formed by four point dimples, a second point dimple (2), a third point dimple (3), a fourth point dimple (4) and a fifth point dimple (5), essentially aligned according to the oblique direction Y-Y', such that a second flow channel (C2) is established between the second point dimple (2) and the third point dimple (3), a third flow channel (C3) is established between the third point dimple (3) and the fourth point dimple (4), a fourth flow channel (C4) is established between the fourth point dimple (4) and the fifth point dimple (5).
  • a second flow channel (C2) is established between the second point dimple (2) and the third point dimple (3)
  • a third flow channel (C3) is established between the third point dimple (3) and the fourth point dimple (4)
  • a fourth flow channel (C4) is established between the fourth point dimple (4) and the fifth point dimple (5).
  • the second channel (C2), the third channel (C3) and the fourth channel (C4) do not have to be fed completely by the channels arranged upstream, but they can also receive flow from the main flow of the tube.
  • Such a complex response of the flow to a specific pattern hence arises.
  • the way to align the different flow channels formed between dimples determining different effects on the flow as will be identified below when describing all the elements forming the pattern is of special interest.
  • the third group is formed by two dimples (6, B), a sixth point dimple (6) aligned with a second elongated dimple (B), extending according to the oblique direction Y-Y', such that a fifth flow channel (C5) is established between the sixth point dimple (6) and the second elongated dimple (B).
  • the fourth group is formed by four point dimples, a seventh dimple (7), an eighth dimple (8), a ninth dimple (9) and a tenth dimple (10), essentially aligned according to the oblique direction Y-Y', such that a sixth flow channel (C6) is established between the seventh point dimple (7) and the eighth point dimple (8), a seventh flow channel (C7) is established between the eighth point dimple (8) and the ninth point dimple (9), an eighth flow channel (C8) is established between the ninth point dimple (9) and the tenth point dimple (10).
  • the alignment of all the groups follows the same inclination but the particular alignments of the channels existing between dimples according to the flow direction do not.
  • a channel is formed by the passage between two dimples, the channel is considered oriented where the orientation is the direction perpendicular to the line connecting the centroids of both point dimples.
  • the orientation of the channel will be the direction perpendicular to the line connecting both dimples where said connection is between the regions closest to one another.
  • the four groups have an oblique orientation and the channels formed between dimples establish speed components with transverse components giving rise to oblique flows but with an inclination opposite the Y-Y' direction.
  • the first pair of dimples formed by the second point dimple (2) and third point dimple (3) is aligned according to the oblique direction Y-Y'
  • the second pair of dimples formed by the fourth point dimple (4) and the fifth point dimple (5) is aligned according to the oblique direction Y-Y'
  • the alignment of the first pair and the alignment of the second pair are misaligned a specific distance despite being parallel.
  • This misalignment is shown in Figure 1 by means of two close parallel lines Y-Y'.
  • the technical effect is a change in orientation of the third channel (C3) causing a higher degree of inclination in the direction opposite the inclination of the axis Y-Y' so that a higher flow rate is directed towards the fifth channel (C5) which is located close to the side opposite the side which tends to divert the inclination of the axis Y-Y' imposed on all the groups of dimples.
  • This fifth channel (C5) mainly feeds the passage through the remaining channels located downstream resulting in greater flow uniformity through all the dimples such that the largest possible exchange area is used.
  • the fourth group of point dimples which are essentially aligned according to the oblique direction Y-Y'.
  • the first pair of dimples formed by the seventh dimple (7) and the eighth dimple (8) is aligned according to the oblique direction Y-Y'
  • the second pair of dimples formed by the ninth dimple (9) and the tenth dimple (10) is aligned according to the oblique direction Y-Y'
  • the alignment of the first pair and the alignment of the second pair are misaligned despite being parallel.
  • This configuration makes homogenizing the flow easier when the pattern is periodically repeated downstream.
  • Generating preferred paths according to an oblique direction with an inclination opposite that established by the axis Y-Y' is enhanced by the condition that the first flow channel (C1), the third flow channel (C3) and the fifth flow channel (C5) are essentially aligned.
  • This preferred path provides a flow reaching even the side opposite the side on which the inclination of the axis Y-Y' offers the bias thereof.
  • the described pattern can also be configured as shown in Figures 1 and 3 , such that there is an alignment between the first channel (C1), the fourth channel (C4) and the eighth channel (C8).
  • These three channels form a preferred path for longitudinal guiding of the flow so that it does not tend to keep excessively towards the outside of the pattern, the side wall of the tube.
  • the elongated dimple (B) of the third group is interposed between the fourth channel (C4) and the eighth channel (C8). Nevertheless, this interposition does not prevent the effect of the alignment since, as indicated above, the flow reaching a channel is fed not only by the flow from channels arranged upstream but also by the main flow of the tube.
  • this path is undulated and enhances vorticity generation, having as an immediate consequence an increase in the degree of heat transfer with the surface of the tube.
  • the pattern according to this same embodiment greatly enhances the creation of preferred paths on the side opposite the side on which the inclination of the axis Y-Y' offers the bias thereof, establishing the alignment of the second channel (C2), the fifth channel (C5) and the sixth channel (C6).
  • the second point dimple (2), the fifth point dimple (5), the seventh point dimple (7) and the tenth point dimple (10) are widened in the direction transverse to the oblique direction Y-Y'.
  • the technical effect of this widening is the prolongation of the dimples towards the sides of the tube so that the main flow does not seek preferred paths for passage through these sides and is concentrated on the segment with dimples for increasing heat exchange.
  • the pattern shown in Figure 1 is repeated on the opposite face. It has been proven by means of numerical simulation that pressure drop due to the inclusion of a dimple pattern on one face, when comparing said pressure drop with that obtained in an embodiment in which only one face of the tube has a dimple pattern, is not greater than two-fold even when the projection according to a plane transverse to the tube shows that the dimples have a depth reducing the section on both faces to one third. In other words, the heat transfer:pressure drop ratio is more favorable if there is a dimple pattern on both faces of the tube than if there is a pattern on only one face.
  • Figure 2 depicts the Nusselt number value on the surface of the tube, a high Nusselt number value being observed homogenously for all the dimples. This indicates that, for the position corresponding to a dimple, there is a large increase in heat transfer on the surface in comparison with the heat transfer that occurs only by conduction, and all this with reduced pressure drop.
  • the figure therefore shows the distribution of Nusselt number values as a function of the heat transfer that occurs with the passage of a hot gas flow through the tube, the direction of which is also shown in the figure.
  • a dimple pattern of these characteristics results in a highly efficient tube when it is part of a heat exchanger, according to the transferred thermal power values as demonstrated by the Nusselt number values represented.
  • Figure 3 shows a tube where both flattened faces have a pattern such as that of the example shown in Figure 1 which is repeated along the length of the tube.
  • This figure shows the two patterns being superimposed on one another, the pattern of the visible face is shown by means of continuous lines and the pattern of the opposite non-visible face is shown by means of dotted lines.
  • the reference numbers of the visible face are located on each dimple whereas the numbers of the dimples located on the non-visible face are located outside the area occupied by the depiction of the tube.
  • the pattern of the first face and the pattern of the second face are distributed longitudinally such that they extend the same length. In this case, it is not only because the dimples have the same size, but because the distribution shown on both faces takes up the same length.
  • the pattern of the first face and the pattern of the second face are positioned such that the end of the first elongated dimple (A) located closest to the central axis of the tube of the first face and the end of the second elongated dimple (B) located closest to the central axis of the tube of the second face overlap one another according to a projection on a plane parallel to both faces.
  • flow perturbations due to the presence of dimples on one face has been shown to not significantly affect the flow modified by the presence of dimples on the opposite face.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)

Claims (10)

  1. Röhre für einen Wärmetauscher mit abgeflachtem Aufbau mit einer ersten, im Wesentlichen ebenen Fläche und einer zweiten im Wesentlichen ebenen Fläche parallel zu und beabstandet von der ersten Fläche; wobei beide Flächen durch Seitenwände verbunden sind, und mindestens eine Fläche mehrere Vertiefungen (A, B, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10) aufweist, die entsprechend einem Muster angeordnet sind, das sich entlang der Längsrichtung X-X' der Röhre wiederholt, wobei dieses Muster aus mehreren Gruppen aus Vertiefungsanordnungen aufgebaut ist, die die Breite der ebenen Fläche ausfüllen, die in ein und derselben Richtung Y-Y' ausgerichtet sind, die schräg zwischen 40° und 50° in Bezug auf die Längsrichtung X-X' angeordnet ist, dadurch gekennzeichnet, dass die Röhre zumindest aufweist:
    - eine erste Gruppe, die aus zwei Vertiefungen (A, 1) gebildet ist, wobei eine erste gestreckte Vertiefung (A), die sich entsprechend der schrägen Richtung Y-Y' erstreckt, zu einer ersten Punktvertiefung (1) derart ausgerichtet ist, dass ein erster Strömungskanal (C1) zwischen der gestreckten Vertiefung (A) und der Punktvertiefung (1) eingerichtet ist,
    - eine zweite Gruppe, die durch vier Punktvertiefungen gebildet ist mit einer zweiten Punktvertiefung (2), einer dritten Punktvertiefung (3), einer vierten Punktvertiefung (4) und einer fünften Punktvertiefung (5), die im Wesentlichen entsprechend der schrägen Richtung Y-Y' derart ausgerichtet sind, dass ein zweiter Strömungskanal (C2) zwischen der zweiten Punktvertiefung (2) und der dritten Punktvertiefung (3) eingerichtet ist, ein dritter Strömungskanal (C3) zwischen der dritten Punktvertiefung (3) und der vierten Punktvertiefung (4) eingerichtet ist, und ein vierter Strömungskanal (C4) zwischen der vierten Punktvertiefung (4) und der fünften Punktvertiefung (5) eingerichtet ist,
    - eine dritte Gruppe, die durch zwei Vertiefungen (6, B) gebildet ist, wobei eine sechste Punktvertiefung (6) zu einer zweiten gestreckten Vertiefung (B) ausgerichtet ist, die sich entsprechend der schrägen Richtung Y-Y' erstreckt derart, dass ein fünfter Strömungskanal (C5) zwischen der sechsten Punktvertiefung (6) und der zweiten gestreckten Vertiefung (B) eingerichtet ist,
    - eine vierte Gruppe, die aus vier Punktvertiefungen gebildet ist mit einer siebten Vertiefung (7), einer achten Vertiefung (8), einer neunten Vertiefung (9) und einer zehnten Vertiefung (10), die im Wesentlichen entsprechend der schrägen Richtung Y-Y' derart ausgerichtet sind, dass ein sechster Strömungskanal (C6) zwischen der siebten Punktvertiefung (7) und der achten Punktvertiefung (8) eingerichtet ist, ein siebter Strömungskanal (C7) zwischen der achten Punktvertiefung (8) und der neunten Punktvertiefung (9) eingerichtet ist, und ein achter Strömungskanal (C8) zwischen der neunten Punktvertiefung (9) und der zehnten Punktvertiefung (10) eingerichtet ist,
    wobei die Lage des ersten Strömungskanals (C1) derart ist, dass ein Transport durch die im Betriebszustand durch ihn hindurch fließende Strömung hauptsächlich in Richtung zu dem dritten Strömungskanal (C3) und dem vierten Strömungskanal (C4) erfolgt.
  2. Röhre nach Anspruch 1, wobei in der zweiten Gruppe, die durch vier Punktvertiefungen gebildet ist, die im Wesentlichen gemäß der schrägen Richtung Y-Y' ausgerichtet sind, das erste Paar aus Vertiefungen, das durch die zweite Punktvertiefung (2) und die dritte Punktvertiefung (3) gebildet ist, gemäß der schrägen Richtung Y-Y' ausgerichtet ist, das zweite Paar aus Vertiefungen, das durch die vierte Punktvertiefung (4) und die fünfte Punktvertiefung (5) gebildet ist, gemäß der schrägen Richtung Y-Y' ausgerichtet ist; und die Ausrichtung des ersten Paares und die Ausrichtung des zweiten Paares trotz Parallelität zueinander um einen speziellen Abstand verschoben sind.
  3. Röhre nach Anspruch 1 oder 2, wobei in der vierten Gruppe, die durch vier Punktvertiefungen gebildet ist, die im Wesentlichen gemäß der schrägen Richtung Y-Y' ausgerichtet sind, das erste Paar aus Vertiefungen, das durch die siebte Vertiefung (7) und die achte Vertiefung (8) gebildet ist, gemäß der schrägen Richtung Y-Y' ausgerichtet ist, das zweite Paar aus Vertiefungen, das durch die neunte Vertiefung (9) und die zehnte Vertiefung (10) gebildet ist, gemäß der schrägen Richtung Y-Y' ausgerichtet ist; und die Ausrichtung des ersten Paares und die Ausrichtung des zweiten Paares trotz Parallelität zueinander verschoben sind.
  4. Röhre nach einem der vorherigen Ansprüche, wobei der erste Strömungskanal (C1), der dritte Strömungskanal (C3) und der fünfte Strömungskanal (C5) im Wesentlichen zueinander ausgerichtet sind.
  5. Röhre nach einem der vorherigen Ansprüche, wobei der erste Strömungskanal (C1), der vierte Strömungskanal (C4) und der achte Strömungskanal (C8) im Wesentlichen zueinander ausgerichtet sind.
  6. Röhre nach einem der vorherigen Ansprüche, wobei der zweite Strömungskanal (C2), der fünfte Strömungskanal (C5) und der sechste Strömungskanal (C6) im Wesentlichen zueinander ausgerichtet sind.
  7. Röhre nach einem der vorherigen Ansprüche, wobei die zweite Punktvertiefung (2), die fünfte Punktvertiefung (5), die siebte Punktvertiefung (7) und die zehnte Punktvertiefung (10) in der Richtung quer zu der schrägen Richtung Y-Y' aufgeweitet sind.
  8. Röhre nach einem der vorherigen Ansprüche, wobei die Röhre auf der ersten und der zweiten Fläche ein und dasselbe Muster hat.
  9. Röhre nach einem der vorherigen Ansprüche, wobei sie auf einer ersten abgeflachten Fläche ein oder mehrere Muster, die entlang der Länge der Röhre verteilt sind, aufweist und auf einer zweiten abgeflachten Fläche, die der gegenüberliegenden Fläche entspricht, ein oder mehrere Muster aufweist, die entlang der Länge der Röhre verteilt sind, und wobei
    - das Muster der ersten Fläche und das Muster der zweiten Fläche in Längsrichtung derart verteilt sind, dass sie sich mit gleicher Länge erstrecken,
    - das Muster der ersten Fläche und das Muster der zweiten Fläche derart positioniert sind, dass das Ende der ersten gestreckten Vertiefung (A), das am nächsten zu der Mittelachse der Röhre der ersten Fläche liegt, und das Ende der zweiten gestreckten Vertiefung (B), das am nächsten zu der Mittelachse der Röhre der zweiten Fläche liegt, entsprechend einer Projektion auf eine Ebene, die parallel zu beiden Flächen liegt, einander überlappen.
  10. Wärmetauscher, der eine oder mehrere Röhren gemäß einem der vorhergehenden Ansprüche aufweist.
EP14382382.1A 2014-10-07 2014-10-07 Röhre für einen Wärmetauscher Not-in-force EP3006884B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP14382382.1A EP3006884B1 (de) 2014-10-07 2014-10-07 Röhre für einen Wärmetauscher
KR1020150140791A KR20160042182A (ko) 2014-10-07 2015-10-07 열교환기용 튜브
BR102015025607A BR102015025607A2 (pt) 2014-10-07 2015-10-07 tubo para um trocador de calor tendo uma configuração achatada e trocador de calor
CN201510796004.XA CN105486141A (zh) 2014-10-07 2015-10-08 用于热交换器的管
US14/981,555 US20160109188A1 (en) 2014-10-07 2015-12-28 Tube for a heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14382382.1A EP3006884B1 (de) 2014-10-07 2014-10-07 Röhre für einen Wärmetauscher

Publications (2)

Publication Number Publication Date
EP3006884A1 EP3006884A1 (de) 2016-04-13
EP3006884B1 true EP3006884B1 (de) 2017-11-22

Family

ID=52354735

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14382382.1A Not-in-force EP3006884B1 (de) 2014-10-07 2014-10-07 Röhre für einen Wärmetauscher

Country Status (5)

Country Link
US (1) US20160109188A1 (de)
EP (1) EP3006884B1 (de)
KR (1) KR20160042182A (de)
CN (1) CN105486141A (de)
BR (1) BR102015025607A2 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10428834B2 (en) * 2016-05-18 2019-10-01 Unison Industries, Llc Turbine engine cooler assembly
JP6742504B2 (ja) * 2017-03-07 2020-08-19 株式会社Ihi 航空機用放熱器
US20180372413A1 (en) 2017-06-22 2018-12-27 Rheem Manufacturing Company Heat Exchanger Tubes And Tube Assembly Configurations
US11498162B2 (en) 2018-09-21 2022-11-15 Johnson Controls Tyco IP Holdings LLP Heat exchanger tube with flattened draining dimple
CN110081763B (zh) * 2019-06-10 2024-02-06 中化节能技术(北京)有限公司 内微肋丁胞复合强化换热管及其制造方法
CN112683098B (zh) * 2020-12-31 2023-07-04 南宁市安和机械设备有限公司 一种错位打点的油冷器管
CN112845938B (zh) * 2020-12-31 2023-06-23 南宁市安和机械设备有限公司 一种制作错位打点油冷器管的设备
CN112728963B (zh) * 2020-12-31 2024-04-26 南宁市安和机械设备有限公司 一种采用错位打点管制成的水散热器
CN112828546B (zh) * 2020-12-31 2023-04-25 南宁市安和机械设备有限公司 一种错位打点油冷器管的制备工艺
FR3129716B1 (fr) * 2021-11-30 2023-12-22 Valeo Systemes Thermiques Eléments de perturbation avancés pour l’amélioration de la performance des tubes

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3415733A1 (de) * 1984-04-27 1985-10-31 Fischbach GmbH & Co KG Verwaltungsgesellschaft, 5908 Neunkirchen Verfahren zur herstellung der platten eines plattenwaermetauschers und aus den platten hergestellter waermetauscher
FR2839776B1 (fr) * 2002-05-15 2006-12-15 Valeo Climatisation Procede et installation pour la conformation d'un tube plie d'echangeur de chaleur
US20060231241A1 (en) * 2005-04-18 2006-10-19 Papapanu Steven J Evaporator with aerodynamic first dimples to suppress whistling noise
US7267162B2 (en) * 2005-06-10 2007-09-11 Delphi Technologies, Inc. Laminated evaporator with optimally configured plates to align incident flow
FR2944591B1 (fr) * 2009-04-17 2012-08-31 Valeo Systemes Thermiques Tube de circulation de fluide refrigerant, faisceau d'echange de chaleur et echangeur de chaleur comportant de tels tubes
US20140158328A1 (en) * 2012-07-05 2014-06-12 Airec Ab Plate for heat exchanger, heat exchanger and air cooler comprising a heat exchanger

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
BR102015025607A2 (pt) 2016-08-02
KR20160042182A (ko) 2016-04-18
EP3006884A1 (de) 2016-04-13
US20160109188A1 (en) 2016-04-21
CN105486141A (zh) 2016-04-13

Similar Documents

Publication Publication Date Title
EP3006884B1 (de) Röhre für einen Wärmetauscher
US10126073B2 (en) Corrugated fin and method for producing it
KR100938802B1 (ko) 마이크로채널 열교환기
US10215497B2 (en) Heat exchanger and production method for heat exchanger
US20180017024A1 (en) Heat exchanger for an egr system
KR102391896B1 (ko) 열교환기용 코루게이티드 핀
EP3650799B1 (de) Rippenkörper für ein wärmetauscherrohr
KR102354854B1 (ko) 난류 형성구 및 이것을 이용한 열교환기 및 급탕장치
US10386132B2 (en) Heat exchanger
EP3040670A1 (de) Wärmeübertrager, insbesondere ein kondensator oder ein gaskühler
KR102217703B1 (ko) 판형 열 교환기를 위한 열 교환 판 및 상기 열 교환 판을 구비한 판형 열 교환기
US20170051982A1 (en) Offset fin and heat exchanger having same
EP3318832B1 (de) Innenrippe für wärmetauscher
US11112185B2 (en) Profiled joint for heat exchanger
JP6550177B1 (ja) 熱交換器
CN106662406A (zh) 热交换器
CN111512109B (zh) 无集管板型热交换器
WO2014102227A1 (en) Conduit for a heat exchanger of an internal combustion engine egr system
EP3575728B1 (de) Kern eines wärmetauschers mit gewellten rippen
EP3023727A1 (de) Fluidleiterplatte und zugehöriger Plattenwärmetauscher
JPWO2019163973A1 (ja) 熱交換器のタンク構造
JP2006266528A (ja) 熱交換器用偏平チューブ
CN111565861A (zh) 用于具有扰动装置的热交换器的管
JP6330646B2 (ja) 熱交換器
JP2010230213A (ja) 熱交換器

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20161010

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

RIC1 Information provided on ipc code assigned before grant

Ipc: F28F 1/02 20060101AFI20170324BHEP

Ipc: F28F 1/40 20060101ALI20170324BHEP

Ipc: F28F 13/12 20060101ALI20170324BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20170616

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 948813

Country of ref document: AT

Kind code of ref document: T

Effective date: 20171215

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602014017507

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20171122

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 948813

Country of ref document: AT

Kind code of ref document: T

Effective date: 20171122

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180222

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180222

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180223

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602014017507

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20180823

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20180917

Year of fee payment: 5

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20181007

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20181031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181007

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181031

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181031

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181031

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181007

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181007

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181007

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602014017507

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171122

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20141007

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171122

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200501

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180322