EP1182416B1 - Heat exchanger tube with inner offset fins with variable height - Google Patents
Heat exchanger tube with inner offset fins with variable height Download PDFInfo
- Publication number
- EP1182416B1 EP1182416B1 EP01119589A EP01119589A EP1182416B1 EP 1182416 B1 EP1182416 B1 EP 1182416B1 EP 01119589 A EP01119589 A EP 01119589A EP 01119589 A EP01119589 A EP 01119589A EP 1182416 B1 EP1182416 B1 EP 1182416B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rib
- ribs
- zones
- heat
- exchange pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/005—Rolls with a roughened or textured surface; Methods for making same
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/227—Surface roughening or texturing
-
- 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
- F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
- F28D2021/0071—Evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2215/00—Fins
- F28F2215/04—Assemblies of fins having different features, e.g. with different fin densities
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
Description
Die Erfindung betrifft ein Wärmeaustauschrohr mit einer inneren strukturierten Oberfläche nach dem Oberbegriff des Anspruchs 1 (vgl. etwa
Ein weltweiter Wettbewerb bei Wärmeaustauschern, z.B. Lamellenblock-Wärmeaustauschern (vgl. Fig. 1) für die Kälte- und Klimatechnik, erfordert hochleistende, mit wenig Material (geringes resultierendes Rohrgewicht) und kostengünstig in wenigen Arbeitsschritten produzierte Wärmeaustauschrohre. Die Wärmeaustauschrohre werden in oftmals zwischen Verdampfung und Kondensation umschaltbaren Lamellenblock-Wärmeaustauschern eingesetzt und sind dabei zumeist horizontal in die Lamellenblock-Wärmeaustauscher eingebaut.Global competition in heat exchangers, e.g. Laminated-block heat exchangers (see Fig. 1) for the refrigeration and air conditioning technology, requires high-performance, with little material (low resulting tube weight) and inexpensive in a few steps produced heat exchange tubes. The heat exchange tubes are used in often switchable between evaporation and condensation finned block heat exchangers and are usually installed horizontally in the finned block heat exchangers.
Zum Stand der Technik zählt ein Wärmeaustauschrohr nach
-
US-A-5.332.034 -
DE-A-196 12 470 -
DE-A-196 28 280 -
JP-A-4/158.193
-
US-A-5332034 -
DE-A-196 12 470 -
DE-A-196 28 280 -
JP-A-4/158193
Aufgabe der Erfindung ist es, ein Wärmeaustauschrohr mit einer inneren Oberflächenstruktur zu schaffen, welche die Vorteile einer im Vergleich zum Stand der Technik guten oder verbesserten Verdampfungsleistung und gleichzeitig eines gegenüber dem Stand der Technik reduzierten Rohrgewichtes und eines verminderten, nach Anzahl der Arbeits- und Walzschritte zählenden Produktionsaufwandes verbindet.The object of the invention is to provide a heat exchange tube with an internal surface structure, which has the advantages of a good or improved compared to the prior art evaporation performance and at the same time reduced compared to the prior art tube weight and a reduced number of working and rolling steps connecting production costs.
Die Aufgabe wird bei Wärmeaustauschrohren nach dem Oberbegriff der Ansprüche 1, 2 und 3 erfindungsgemäß dadurch gelöst, daß die Rippen in den einzelnen Zonen (Z1 bis Zm) in Rohrlängsrichtung in beliebiger periodischer Kombination und Abfolge mindestens zweier Rippenhöhen (H1 bis Hn, H1>H2>...>Hn) angeordnet sind, wobei benachbarte Zonen (Z1 bis Zm) so aneinander grenzen, dass am Übergang zweier Zonen die Rippenabfolge in Rohrlängsrichtung um mindestens eine Rippe gegeneinander versetzt ist.The object is achieved in heat exchange tubes according to the preamble of
Damit ergeben sich folgende Vorteile der Erfindung:
- Durch den alternierenden Wechsel hoher und niedriger Rippen in deren Längsrichtung bietet sich über die Rippen niedriger Höhe hinweg die Möglichkeit eines Queraustausches zwischen den Kanälen mit einer entsprechenden zusätzlichen Turbulenzerzeugung. Es wird allerdings durch die versetzte Anordnung der Rippen niedriger Höhe eine der fluchtenden Anordnung der Mulden aus
US-A-5.332.034 - Es liegt genau eine eindeutige Vorzugsrichtung der wandnahen Strömung vor, so daß durch die so erzwungene Drallströmung eine für eine gute und verbesserte Verdampfungsleistung erforderliche, vollständige Benetzung des gesamten Rohrumfangs und gerade der oben liegenden Abschnitte der inneren Rohroberfläche erzielt wird. Bei Strukturen ohne eine einheitliche Vorzugsrichtung, wie
DE-A-196 28 280 - Im Gegensatz zum nachträglichen Formen der Mulden in einem zweiten Walzgang kann diese Struktur in einem einzigen Walzgang erzeugt werden, so daß anstelle des Verdrängens von Material aus den Rippen heraus in die Kanäle hinein, tatsächlich eine Materialeinsparung und eine Gewichtsreduzierung erzielt und zudem eine Verminderung des nach Anzahl der Arbeits- und Walzschritte zählenden Produktionsaufwandes erreicht wird.
- Strukturen mit zonenweise variierendem Steigungswinkel der Rippen nach
Anspruch 2 bzw. 3, bieten vor allem aus umformtechnischer Sicht bedeutende Vorteile, da sich evtl. auftretende, durch die schräg zur Bandrichtung verlaufenden Nuten und Rippen bedingte Seitenkräfte im Walzprozeß zumindest teilweise kompensieren können und so die Bandführung erleichtert wird. Ihre wärmetechnische Leistung kann durch die erfindungsgemäß durch die verschiedenen Höhen, Fußbreiten und Querschnittsformen der Rippen unterschiedlicher Höhe zusätzlich in die Oberflächenstruktur eingebrachten Kanten, scharfkantige oder auch abgerundete Vor- und Rücksprünge noch gesteigert werden.
- Due to the alternating change of high and low ribs in the longitudinal direction offers over the ribs of low height, the possibility of a cross exchange between the channels with a corresponding additional turbulence generation. However, it is due to the staggered arrangement of the ribs low height one of the aligned arrangement of the wells
US-A-5332034 - There is exactly one unambiguous preferred direction of the near-wall flow, so that a required for a good and improved evaporation performance, complete wetting of the entire pipe circumference and just the overhead sections of the inner pipe surface is achieved by the forced swirl flow. For structures without a uniform preferred direction, such as
DE-A-196 28 280 - In contrast to the subsequent shaping of the troughs in a second rolling pass, this structure can be produced in a single pass, so that instead of displacing material out of the fins into the passages, material savings and weight reduction are achieved, and also a reduction in the after-pass Number of labor and rolling steps counting production costs is achieved.
- Structures with zonewise varying pitch angle of the ribs according to
2 or 3, offer significant advantages especially from Umformtechnischer perspective, since possibly occurring, caused by the obliquely to the belt direction grooves and ribs side forces in the rolling process can at least partially compensate and so the tape guide is relieved. Their thermal performance can be further increased by the present invention by the different heights, foot widths and cross-sectional shapes of the ribs of different heights additionally introduced into the surface structure edges, sharp-edged or rounded projections and recesses.claim
Die Ansprüche 4 bis 19 betreffen bevorzugte Ausführungsformen der erfindungsgemäßen Wärmeaustauschrohre.
Durch die verschiedenen Höhen, Fußbreiten und Querschnittsformen der Rippen unterschiedlicher Höhe werden zusätzlich Kanten, scharfkantige oder auch abgerundete Vor- und Rücksprünge in die Oberflächenstruktur und in die seitlichen Begrenzungen der wandnahen Kanäle eingebracht, die einer weiteren Turbulenzerzeugung und - insbesondere bei Gemischen - einem Stören und Aufreißen sich eventuell ausbildender Temperatur- und Konzentrationsgrenzschichten dienen und als zusätzliche Dampfblasenkeime zur Verfügung stehen. (Vorteil gegenüber
Die Herstellung des erfindungsgemäßen Wärmeaustauschrohres basiert beispielhaft auf dem im Folgenden näher beschriebenen Verfahren. Üblicherweise wird Kupfer oder eine Kupferlegierung als Material der Wärmeaustauschrohre verwendet, jedoch ist die vorliegende Erfindung nicht in dieser Weise beschränkt. Vielmehr kann jeder Metalltyp zur Anwendung kommen, z.B. Aluminium. Zunächst wird ein metallisches Flachband einem einstufigen Walzprägeschritt unterworfen, in dem es zwischen einer Strukturwalze mit einer zur erfindungsgemäßen Struktur komplementären Oberflächengestaltung und einer Stützwalze hindurchgeführt wird. Dabei wird eine Seite des Flachbandes mit der erfindungsgemäßen Struktur versehen, während die zweite Seite glatt bleibt oder auch eine hier nicht näher beschriebene Strukturierung aufweist. Lediglich die dem nachfolgenden Verschweißen dienenden Randbereiche der ersten Seite können eventuell andersartig strukturiert werden oder auch unstrukturiert bleiben. Nach dem Walzprägeschritt wird das strukturierte Flachband zu einem Schlitzrohr eingeformt, in einem Schweißprozess längsnahtgeschweißt und das Rohr gegebenenfalls noch in einem abschließenden Ziehprozeß auf den gewünschten Aussendurchmesser gebracht. Eine mögliche Beeinflussung des Wärmeübertragungsvermögens des erfindungsgemäßen Wärmeaustauschrohres durch den die Schweißnaht umgebenden, andersartig strukturierten oder auch unstrukturierten Bereich ist unbedeutend und kann vernachlässigt werden.The production of the heat exchange tube according to the invention is based, for example, on the method described in more detail below. Usually, copper or a copper alloy is used as the material of the heat exchange tubes, but the present invention is not limited in this way. Rather, any type of metal can be used, eg aluminum. First, a metallic flat strip is subjected to a single-stage roll embossing step in which it is passed between a textured roll having a surface configuration complementary to the structure according to the invention and a backing roll. In this case, one side of the flat strip is provided with the structure according to the invention, while the second side remains smooth or has a structuring not described here in detail. Only the marginal areas of the first page serving for the subsequent welding can possibly be structured differently or remain unstructured. After the roll embossing step, the structured flat strip is formed into a slot tube, longitudinally welded in a welding process, and the tube is optionally brought to the desired outside diameter in a final drawing process. A possible influence on the heat transfer capacity of the heat exchange tube according to the invention by the weld seam surrounding, differently structured or unstructured area is insignificant and can be neglected.
Der Anspruch 20 betrifft die bevorzugte Ausführungsform einer Strukturwalze zur Herstellung der erfindungsgemäßen Wärmeaustauschrohre. Der modulare Aufbau der Walze aus Scheiben bzw. Ringen, der ein schnelles Erstellen und Bewerten zahlreicher Strukturvarianten im Rahmen eines Versuchsplanes und eine zügige Anpassung der Oberflächenstrukturierung an neue Fluide und veränderte Betriebszustände durch Änderung der Zahl, Form und (Nuten-)Geometrie der Scheiben und Ringe bzw. durch Austausch einzelner Scheiben/Ringe nach dem Baukastenprinzip ermöglicht, zeigt sich als weiterer Vorteil der Erfindung.Claim 20 relates to the preferred embodiment of a structure roller for producing the heat exchange tubes according to the invention. The modular structure of the wheel of discs or rings, the rapid creation and evaluation of numerous structural variants in the context of a design plan and a rapid adaptation of surface structuring to new fluids and changed operating conditions by changing the number, shape and (slot) geometry of the discs and Rings or by replacing individual discs / rings made possible on the modular principle, shows itself as a further advantage of the invention.
Die Erfindung wird anhand der folgenden Ausführungsbeispiele näher erläutert.The invention will be explained in more detail with reference to the following embodiments.
Es zeigt:
- Fig. 1
- einen Lamellenblock-Wärmeaustauscher nach dem Stand der Technik,
- Fig.2
- perspektivisch einen Abschnitt eines innenberippten Wärmeaustauschrohres,
- Fig.3
- schematisch eine Draufsicht eines erfindungsgemäßen Wärmeaustauschrohres mit aufgeklappter, berippter Innenoberfläche,
- Fig.4
- im vergrößerten Maßstab einen Querschnitt senkrecht zu den Rippenmittellinien durch eine hohe und eine niedrige Rippe nach Fig.3,
- Fig.5
- schematisch eine Draufsicht eines erfindungsgemäßen Wärmeaustauschrohres analog zu Fig.3, bei dem hohe und niedrige Rippen jeweils durch einen Spalt voneinander getrennt sind,
- Fig.6
- schematisch den Aufbau einer Strukturwalze zur Herstellung der erfindungsgemäßen Wärmeaustauschrohre,
- Fig.7
- in Schwarzweiß-Darstellung eine Draufsicht eines erfindungsgemäßen Wärmeaustauschrohres mit aufgeklappter Innenoberfläche, die in vier Zonen aufgeteilt ist,
- Fig.8
- eine Innenoberfläche nach Fig.7, bei der hohe und niedrige Rippen jeweils durch einen Spalt getrennt sind,
- Fig. 9
- in Schwarzweiß-Darstellung eine Draufsicht eines weiteren erfindungsgemäßen Wärmeaustauschrohres mit aufgeklappter Innenoberfläche, die in sechs Zonen aufgeteilt ist, wobei die Rippen positive und negative Steigungswinkel aufweisen, und
- Fig. 10
- in Schwarzweiß-Darstellung eine Draufsicht eines weiteren erfindungsgemäßen Wärmeaustauschrohres mit aufgeklappter Innenoberfläche, die in sechs Zonen aufgeteilt ist, wobei die Rippen in den beiden mittleren Zonen einen anderen Steigungswinkel aufweisen als die Rippen in den beiden jeweiligen Randzonen.
- Fig. 1
- a prior art fin block heat exchanger,
- Fig.2
- in perspective, a portion of a innenberippten heat exchange tube,
- Figure 3
- FIG. 2 schematically a top view of a heat exchange tube according to the invention with unfolded, ribbed inner surface, FIG.
- Figure 4
- on an enlarged scale a cross-section perpendicular to the rib center lines through a high and a low rib according to Figure 3,
- Figure 5
- 3 is a schematic plan view of a heat exchange tube according to the invention analogous to FIG. 3, in which high and low ribs are separated from each other by a gap,
- Figure 6
- FIG. 2 schematically shows the structure of a structure roller for producing the heat exchange tubes according to the invention, FIG.
- Figure 7
- in black and white representation, a top view of a heat exchange tube according to the invention with unfolded inner surface, which is divided into four zones,
- Figure 8
- an inner surface according to Figure 7, in which high and low ribs are each separated by a gap,
- Fig. 9
- in black and white representation of a plan view of another heat exchange tube according to the invention with unfolded inner surface, which is divided into six zones, wherein the ribs have positive and negative pitch angles, and
- Fig. 10
- in black and white representation of a plan view of another heat exchange tube according to the invention with unfolded inner surface, which is divided into six zones, wherein the ribs in the two central zones have a different pitch angle than the ribs in the two respective edge zones.
Fig. 1 zeigt einen Lamellenblock-Wärmeaustauscher nach dem Stand der Technik mit horizontal angeordneten Wärmeaustauschrohren 1 und nicht näher bezifferten Lamellen.Fig. 1 shows a fin block heat exchanger according to the prior art with horizontally disposed
In Fig. 2 ist ein Längenabschnitt eines längsnahtgeschweißten Wärmeaustauschrohres 1 mit dem Außendurchmesser D dargestellt. Das Wärmeaustauschrohr 1 weist eine glatte äußere Oberfläche und eine strukturierte Innenoberfläche auf.In Fig. 2, a longitudinal section of a longitudinally welded
Fig. 3 zeigt schematisch eine Draufsicht auf die aufgeklappte Innenoberfläche eines solchen berippten Wärmeaustauschrohres 1. Die Innenoberfläche ist in Umfangsrichtung in vier Zonen (Z1 bis Z4) aufgeteilt. In jeder Zone (Z1 bis Z4) sind alternierend (in Rohrlängsrichtung) hohe Rippen 2 (Rippenhöhe H1) und niedrige Rippen 3 (Rippenhöhe H2) eingeformt, die durch Nuten 4 voneinander getrennt sind. Die Rippen 2, 3 - und die Nuten 4 - verlaufen schräg zur Rohrlängsrichtung, d.h. die Mittellinien 5 der Rippen 2, 3 bilden mit der Rohrlängsrichtung den Steigungswinkel α. Benachbarte Zonen (Z1 bis Z4) sind so gegeneinander versetzt, daß an den Grenzen der Zonen (Z1 bis Z4) jeweils eine hohe Rippe 2 und eine niedrige Rippe 3 zusammenstoßen. Die Rippenlänge innerhalb einer Zone, gemessen längs der Mittellinien 5 der Rippen 2, 3, ist mit L bezeichnet.Fig. 3 shows schematically a plan view of the unfolded inner surface of such a finned
Fig.4 zeigt im Detail die Rippenteilung t (Abstand von Rippenmitte zu Rippenmitte, gemessen senkrecht zu den Rippenmittellinien 5), die Flankenwinkel γ1 bzw. γ2, die Rippenhöhen H1 bzw. H2 und die Rippenfußbreiten F1 bzw. F2. Die Flankenwinkel γ1, γ2 und die Fußbreiten F1, F2 werden ebenfalls in einer Querschnittsebene senkrecht zu den Rippenmittellinien 5 gemessen.4 shows in detail the rib pitch t (distance from the center of the rib to the middle of the rib measured perpendicular to the rib center lines 5), the flank angles γ 1 and γ 2 , the rib heights H 1 and H 2 and the rib foot widths F 1 and F 2, respectively , The flank angles γ 1 , γ 2 and the foot widths F 1 , F 2 are also measured in a cross-sectional plane perpendicular to the
Fig. 5 zeigt schematisch und analog zu Fig.3 eine Draufsicht auf die aufgeklappte Innenoberfläche eines berippten Wärmeaustauschrohres 1, bei der hohe und niedrige Rippen am Übergang benachbarter Zonen jeweils durch einen Spalt 12 der Länge B (gemessen längs der verlängerten Mittellinien 5 der Rippen 2, 3) voneinander getrennt sind.5 shows, schematically and analogously to FIG. 3, a plan view of the unfolded inner surface of a finned
In Fig. 6 ist schematisch der Aufbau einer Strukturwalze 6 zur Herstellung der erfindungsgemäßen Wärmeaustauschrohre 1 dargestellt.In Fig. 6, the structure of a
Die Walze 6 ist aus mehreren Scheiben 7 aufgebaut, die in Umfangsrichtung gegeneinander versetzt sind. In die einzelnen Scheiben 7 sind alternierend tiefe und weniger tiefe Nuten 8, 9 eingebracht, die beim Abrollen der Walze 6 auf dem Blechband 10 in einem Walzprägevorgang die hohen Rippen 2 und die niedrigeren Rippen 3 in den einzelnen Zonen Z1 bis Z5 erzeugen. Nach der Strukturierung wird das Blechband 10 zu einem Schlitzrohr geformt und längsgeschweißt (Schweißnaht 11).The
Die Fig. 7 bis 10 zeigen in Schwarzweiß-Darstellung weitere Ausführungsformen der Erfindung, wobei die Rippenspitzen/-flanken weiß und der Grund der zwischen den Rippen 2, 3 verlaufenen Nuten 4 schwarz gehalten wird.7 to 10 show in black and white representation of further embodiments of the invention, wherein the rib tips / flanks white and the bottom of the running between the
Die Fig. 7 und 8 zeigen eine Ausführungsform mit jeweils vier Zonen (Z1 bis Z4), wobei sich die Fig.8 durch die zusätzliche Anordnung von Spalten 12 der Länge B zwischen hohen Rippen 2 und niedrigen Rippen 3 unterscheidet. Diese Verhältnisse sind anhand der Darstellung gemäß Fig. 5 verdeutlicht.FIGS. 7 and 8 show an embodiment with four zones each (Z 1 to Z 4 ), wherein FIG. 8 differs by the additional arrangement of
Die Innenoberfläche des Wärmeaustauschrohres 1 nach Fig. 9 ist in 6 Zonen (Z1 bis Z6) aufgeteilt. In der Gruppe G1 mit den drei Zonen (Z1 bis Z3) verlaufen die Rippen 2, 3 unter dem Steigungswinkel α, in der Gruppe 2 mit den drei Zonen (Z4 bis Z6) unter dem bzgl. der Grenzlinie zwischen benachbarten Gruppen spiegelsymmetrisch entgegen gesetzten (negativen) Winkel α' = -α.The inner surface of the
Die Innenoberfläche des Wärmeaustauschrohres 1 nach Fig. 10 ist ebenfalls in 6 Zonen (Z1 bis Z6) aufgeteilt. In den Gruppen G1 und G3 mit den Zonen Z1/Z2 und Z5/Z6 verlaufen die Rippen 2, 3 unter dem Steigungswinkel α, in der Gruppe 2 mit den Zonen Z3/Z4 unter einem betragsmäßig anderen Steigungswinkel |α'| ≠ |α|.The inner surface of the
Zur Herstellung eines Wärmeaustauschrohres 1 mit einem Aussendurchmesser von D = 7 mm wird die Strukturwalze 6 aufgebaut aus 19 Scheiben 7 des Durchmessers 33 mm und der Stärke 1,2 mm, so dass die resultierende Strukturierung der Innenoberfläche des Wärmeaustauschrohres 1 vor dem abschließenden Ziehprozeß entsprechend Fig. 2 aus 19 1,2 mm breiten Zonen besteht, in denen sich in Längsrichtung des Bandes 10 alternierend hohe und niedrigere Rippen 2, 3 abwechseln und unter einem Winkel von α = 14,3° gegenüber der Längsrichtung des Flachbandes 10 verlaufen. Je Zone sind in dieser Ausführung bei einem Schnitt in Umfangsrichtung genau eine hohe und eine niedrigere Rippe 2, 3 enthalten, so dass insgesamt in Umfangsrichtung 19 hohe Rippen 2 und 19 niedrigere Rippen 3 resultieren. Die Rippenhöhen betragen H1 = 0,14 mm bzw. H2 = 0,07 mm, die Flankenwinkel γ = 45°, die Längen der Rippen L = 4,86 mm und die Teilung (der Abstand hohe - niedrige Rippe gemessen senkrecht zur Rippe) beträgt t = 0,58 mm. Als Versatz der Zonen bzw. als Winkelversatz der Scheiben 7 der Strukturwalze 6 gegeneinander wird ein Winkel von 90° eingestellt.To produce a
Claims (20)
- Heat-exchange pipe (1) having a ribbed inner surface which is divided in a peripheral direction into at least two zones (Z1 to Zm), ribs (2, 3) of differing rib height which extend at an angle of pitch α relative to the longitudinal axis of the pipe alternating in adjacent zones (Z1 to Zm),
characterised in that
the ribs (2, 3) are arranged in the individual zones (Z1 to Zm) in the longitudinal direction of the pipe in any desired periodic combination and sequence of at least two rib heights (H1 to Hn, H1>H2>...>Hn), adjacent zones (Z1 to Zm) adjoining each other in such a manner that, at the transition of two zones, the rib sequence is mutually offset in the longitudinal direction of the pipe by at least one rib. - Heat-exchange pipe (1) having a ribbed inner surface which is divided in a peripheral direction into at least two groups (G1 to Gp) of zones (Z1 to Zm), each group comprising at least two zones and the angle of pitch (α, α') of the ribs (2, 3) in the zones of a group being uniform in each case, but varying between adjacent groups in such a manner that, when counting from a group G1 in groups with an uneven number, there is a differently valued angle of pitch α of the ribs (2, 3) from the angle of pitch α' in groups with an even number (|α'| ≠ |α|),
characterised in that
the ribs (2, 3) are arranged in the individual zones (Z1 to Zm) in the longitudinal direction of the pipe in any desired periodic combination and sequence of at least two rib heights (H1 to Hn, H1>H2>...>Hn), adjacent zones (Z1 to Zm) of a group adjoining each other in such a manner that, at the transition of two zones of a group, the rib sequence is mutually offset in the longitudinal direction of the pipe by at least one rib. - Heat-exchange pipe (1) having a ribbed inner surface which is divided in a peripheral direction into at least two groups (G1 to Gp) of zones (Z1 to Zm), each group comprising at least two zones and the angle of pitch (α, α') of the ribs (2, 3) in the zones of a group being uniform in each case, but varying between adjacent groups in such a manner that, when counting from a group G1 in groups with an uneven number, there is an angle of pitch α of the ribs (2, 3), and in groups having an even number, an angle of pitch α' = -α of the ribs (2, 3) that is opposite in a mirror-symmetrical manner relative to the borderline between adjacent groups,
characterised in that
the ribs (2, 3) are arranged in the individual zones (Z1 to Zm) in the longitudinal direction of the pipe in any desired periodic combination and sequence of at least two rib heights (H1 to Hn, H1>H2>...>Hn), adjacent zones (Z1 to Zm) of a group adjoining each other in such a manner that, at the transition of two zones of a group, the rib sequence is mutually offset in the longitudinal direction of the pipe by at least one rib. - Heat-exchange pipe according to any one of claims 1 to 3,
characterised in that
in each zone (Z1 to Zm), in periodic repetition, precisely one rib having the rib height Hi (i=1 to n) is followed by precisely one rib having the rib height Hj (j=1 to n, j ≠ i, Hj ≠ Hi) and optionally other ribs having the heights Hk (k=1 to n, k ≠ i,j, Hk ≠ Hi, Hj) in the longitudinal direction of the pipe. - Heat-exchange pipe according to any one of claims 1 to 3,
characterised in that
in each zone (Z1 to Zm), in periodic repetition, two or more ribs having the rib height Hi (i = 1 to n) are followed in each case by precisely one rib having the rib height Hj (j = 1 to n, j ≠ i, Hj ≠ Hi) and optionally other ribs having the heights Hk (k = 1 to n, k ≠ i, j , Hk ≠ Hi,Hj) in the longitudinal direction of the pipe. - Heat-exchange pipe according to any one of claims 1 to 3,
characterised in that
in each zone (Z1 to Zm), in periodic repetition, precisely one rib having the rib height Hi (i = 1 to n) is followed in each case by two or more ribs having the rib height Hj (j = 1 to n, j ≠ i, Hj ≠ Hi) and optionally other ribs having the heights Hk (k = 1 to n, k ≠ i, j , Hk ≠ Hi,Hj) in the longitudinal direction of the pipe. - Heat-exchange pipe according to any one of claims 1 to 3,
characterised in that
in each zone (Z1 to Zm), in periodic repetition, two or more ribs having the rib height Hi (i = 1 to n) are followed in each case by two or more ribs having the rib height Hj (j = 1 to n, j ≠ i, Hj ≠ Hi) and optionally other ribs having the heights Hk (k = 1 to n, k ≠ i, j , Hk ≠ Hi,Hj) in the longitudinal direction of the pipe. - Heat-exchange pipe according to one or more of claims 1 to 7, characterised in that
with an outer pipe diameter of D = 3 to 20 mm, the angle of pitch α is from 5 to 85°, the largest rib height H1 is from 0.05 to 0.5 mm and the rib length for each zone L is from 0.5 to 15 mm. - Heat-exchange pipe according to claim 8, characterised in that
with an outer pipe diameter of D = 6 to 12.7 mm, the angle of pitch α is from 10 to 40°, the largest rib height H1 is from 0.1 to 0.3 mm and the rib length for each zone L is from 0.5 to 10 mm. - Heat-exchange pipe according to one or more of claims 1 to 9, characterised in that
the rib heights Hj (j=2 to n), compared with the largest rib height H1, Hj/H1 are from 0.1 to 0.9, in particular 0.2 to 0.8. - Heat-exchange pipe according to one or more of claims 4 to 9, characterised in that
the rib height H2, compared with the largest rib height H1, H2/H1 is from 0.2 to 0.7, in particular 0.4 to 0.6. - Heat-exchange pipe according to one or more of claims 1 to 11, characterised in that
the rib distribution t is from 0.1 to 0.8 mm and the flank angle γ1 to γn is from 10 to 60°. - Heat-exchange pipe according to claim 12, characterised in that
the rib distribution t is 0.2 to 0.6 mm and the flank angle γ1 to γn is from 20 to 50°. - Heat-exchange pipe according to one or more of claims 1 to 13, characterised in that
the cross-sections of the ribs (2, 3) are geometrically similar. - Heat-exchange pipe according to one or more of claims 1 to 13, characterised in that
the cross-sections of the ribs (2, 3) are geometrically different. - Heat-exchange pipe according to one or more of claims 1 to 15, characterised in that
two ribs (2, 3) of adjacent zones (Z1 to Zm), one of which is located in the extension of the centre line (5) of the other, are separated from each other in each case by means of a gap (12). - Heat-exchange pipe according to claim 16, characterised in that
the gap length is B < 0.5 x rib length L. - Heat-exchange pipe according to claim 17, characterised in that
the gap length is B < 0.2 x rib length L. - Heat-exchange pipe according to one or more of claims 1 to 18, characterised in that
it has at least one weld seam (11), in particular in the longitudinal direction of the pipe. - Method for producing a heat-exchange pipe according to one or more of claims 1 to 19, having a structure roller,
characterised in that
the structure roller is constructed from discs or rings (7), the number and width of which corresponds to the number and width of the zones (Z1 to Zm) of the heat-exchange pipe (1), and which have grooves (8, 9) which extend in an inclined manner and which have different depths in an alternating manner and which are mutually offset in a peripheral direction.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10041919A DE10041919C1 (en) | 2000-08-25 | 2000-08-25 | Internally finned heat exchange tube has fins in individual zones arranged so that adjacent zones have fins offset at zone transition |
DE10041919 | 2000-08-25 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1182416A2 EP1182416A2 (en) | 2002-02-27 |
EP1182416A3 EP1182416A3 (en) | 2006-01-04 |
EP1182416B1 true EP1182416B1 (en) | 2007-10-03 |
Family
ID=7653844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01119589A Expired - Lifetime EP1182416B1 (en) | 2000-08-25 | 2001-08-16 | Heat exchanger tube with inner offset fins with variable height |
Country Status (6)
Country | Link |
---|---|
US (2) | US6631758B2 (en) |
EP (1) | EP1182416B1 (en) |
JP (1) | JP2002115987A (en) |
CN (1) | CN1243950C (en) |
AT (1) | ATE374916T1 (en) |
DE (2) | DE10041919C1 (en) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10156374C1 (en) * | 2001-11-16 | 2003-02-27 | Wieland Werke Ag | Heat exchange tube structured on both sides has inner fins crossed by secondary grooves at specified rise angle |
DE10210016B9 (en) * | 2002-03-07 | 2004-09-09 | Wieland-Werke Ag | Heat exchange tube with a ribbed inner surface |
DE10218912A1 (en) | 2002-04-27 | 2003-11-06 | Modine Mfg Co | Corrugated heat exchanger body |
US20040099409A1 (en) * | 2002-11-25 | 2004-05-27 | Bennett Donald L. | Polyhedral array heat transfer tube |
DE102008030423B4 (en) | 2007-12-05 | 2016-03-03 | GIB - Gesellschaft für Innovation im Bauwesen mbH | Pipe with a surface profile-modified outer surface by pimples |
DE102008001435A1 (en) | 2008-04-28 | 2009-10-29 | Basf Se | Process for transferring heat to a monomeric acrylic acid, acrylic acid-Michael oligomers and acrylic acid polymer dissolved liquid containing |
US20110079370A1 (en) * | 2009-07-17 | 2011-04-07 | Textron Inc. | Non-Uniform Height And Density Fin Design For Heat Sink |
JP2011144989A (en) * | 2010-01-13 | 2011-07-28 | Mitsubishi Electric Corp | Heat transfer tube for heat exchanger, heat exchanger, refrigerating cycle device and air conditioner |
CN103339460B (en) * | 2011-01-28 | 2017-01-18 | 开利公司 | Current-carrying tube for heat exchanger |
US9964364B2 (en) * | 2012-05-10 | 2018-05-08 | Arconic Inc. | Multi-layer aluminum alloy sheet product for tubes for heat exchangers |
US9599410B2 (en) * | 2012-07-27 | 2017-03-21 | General Electric Company | Plate-like air-cooled engine surface cooler with fluid channel and varying fin geometry |
CN103433323A (en) * | 2013-08-05 | 2013-12-11 | 江苏天潭科技材料有限公司 | Production method of internal thread aluminum pipe |
US20150219405A1 (en) * | 2014-02-05 | 2015-08-06 | Lennox Industries Inc. | Cladded brazed alloy tube for system components |
CN105627789B (en) * | 2015-12-30 | 2017-07-28 | 青岛金玉大商贸有限公司 | A kind of heat exchanger of intercommunicating pore number change |
CN105571165B (en) * | 2015-12-30 | 2017-11-17 | 佛山市顺德区北滘镇信威电器有限公司 | A kind of inner rib plate height Axial changes solar water heater |
CN105571347B (en) * | 2015-12-30 | 2017-09-08 | 青岛酒店管理职业技术学院 | A kind of different intercommunicating pore finned heat exchanger of row's spacing |
CN105571348B (en) * | 2015-12-30 | 2017-05-31 | 青岛酒店管理职业技术学院 | The heat exchanger that a kind of finned tube angle is gradually changed |
US10823067B2 (en) * | 2016-05-11 | 2020-11-03 | General Electric Company | System for a surface cooler with OGV oriented fin angles |
DE102017100652B4 (en) * | 2017-01-13 | 2022-09-29 | Schmidt & Bender Gmbh & Co. Kg | Reversing system for telescopic sights and telescopic sights with such |
CN107328272B (en) * | 2017-08-22 | 2023-08-22 | 无锡马山永红换热器有限公司 | High-efficiency plate-fin water cooler |
US20200126891A1 (en) * | 2018-10-19 | 2020-04-23 | Board Of Trustees Of The University Of Arkansas | Combined Integration Of Phase Change Materials Into Conduction-Convection-Latent Heat Optimized Thermal Management Through Novel Geometries Enabled In Additive Manufactured Heat Sinks |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6189497A (en) * | 1984-10-05 | 1986-05-07 | Hitachi Ltd | Heat transfer pipe |
JPH02161290A (en) * | 1988-12-15 | 1990-06-21 | Furukawa Electric Co Ltd:The | Inner face processed heat transfer tube |
JP3014432B2 (en) * | 1990-10-23 | 2000-02-28 | 古河電気工業株式会社 | Heat transfer tube manufacturing method |
JP2785851B2 (en) * | 1991-02-18 | 1998-08-13 | 日立電線株式会社 | Heat exchanger tubes for heat exchangers |
US5332034A (en) | 1992-12-16 | 1994-07-26 | Carrier Corporation | Heat exchanger tube |
JPH0875384A (en) * | 1994-07-01 | 1996-03-19 | Hitachi Ltd | Heat transfer tube for non-azeotrope refrigerant, heat exchanger using the same tube, assembling method and refrigerating air conditioner using the same exchanger |
US5791405A (en) * | 1995-07-14 | 1998-08-11 | Mitsubishi Shindoh Co., Ltd. | Heat transfer tube having grooved inner surface |
US5704424A (en) * | 1995-10-19 | 1998-01-06 | Mitsubishi Shindowh Co., Ltd. | Heat transfer tube having grooved inner surface and production method therefor |
JP3572497B2 (en) * | 1996-03-22 | 2004-10-06 | 東洋ラジエーター株式会社 | Welded pipe with internal groove for heat exchanger for air conditioning |
DE19612470A1 (en) * | 1996-03-28 | 1997-10-02 | Km Europa Metal Ag | Exchanger tube |
KR100245383B1 (en) * | 1996-09-13 | 2000-03-02 | 정훈보 | Pipe with crossing groove and manufacture thereof |
TW445299B (en) * | 1996-10-16 | 2001-07-11 | Shinetsu Chemical Co | Method of producing hydrogen absorbing alloy powder, and electrode using hydrogen absorbing alloy powder produced by said method |
JPH1183368A (en) * | 1997-09-17 | 1999-03-26 | Hitachi Cable Ltd | Heating tube having grooved inner surface |
JPH11108579A (en) * | 1997-10-02 | 1999-04-23 | Kobe Steel Ltd | Pipe with grooved inner face |
JP2000121272A (en) * | 1998-10-14 | 2000-04-28 | Mitsubishi Shindoh Co Ltd | Heat exchanger tube with internal groove and heat exchanger |
MY120261A (en) * | 1998-11-24 | 2005-09-30 | Furukawa Electric Co Ltd | Internal-grooved heat exchanger tube and metal strip machining roll for internal-grooved heat exchanger tube |
JP2000205781A (en) * | 1999-01-06 | 2000-07-28 | Mitsubishi Shindoh Co Ltd | Inner surface grooved heat transfer tube |
-
2000
- 2000-08-25 DE DE10041919A patent/DE10041919C1/en not_active Expired - Fee Related
-
2001
- 2001-08-02 JP JP2001234523A patent/JP2002115987A/en active Pending
- 2001-08-14 CN CNB011255536A patent/CN1243950C/en not_active Expired - Fee Related
- 2001-08-16 EP EP01119589A patent/EP1182416B1/en not_active Expired - Lifetime
- 2001-08-16 AT AT01119589T patent/ATE374916T1/en not_active IP Right Cessation
- 2001-08-16 DE DE50113077T patent/DE50113077D1/en not_active Expired - Lifetime
- 2001-08-17 US US09/932,412 patent/US6631758B2/en not_active Expired - Fee Related
-
2002
- 2002-09-06 US US10/236,692 patent/US6722420B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US6631758B2 (en) | 2003-10-14 |
ATE374916T1 (en) | 2007-10-15 |
US20030006031A1 (en) | 2003-01-09 |
CN1243950C (en) | 2006-03-01 |
US20030111215A1 (en) | 2003-06-19 |
EP1182416A3 (en) | 2006-01-04 |
JP2002115987A (en) | 2002-04-19 |
CN1340689A (en) | 2002-03-20 |
US6722420B2 (en) | 2004-04-20 |
DE10041919C1 (en) | 2001-10-31 |
DE50113077D1 (en) | 2007-11-15 |
EP1182416A2 (en) | 2002-02-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1182416B1 (en) | Heat exchanger tube with inner offset fins with variable height | |
DE19628280C2 (en) | Heat transfer tube with a grooved inner surface | |
DE4404357C1 (en) | Heat exchange core for condensing vapour (steam) | |
DE10038624C2 (en) | Heat transfer tube with twisted inner fins | |
DE10101589C1 (en) | Heat exchanger tube and process for its production | |
EP0733871B1 (en) | Heat transfer tube for a heat exchanger | |
DE60005602T2 (en) | Liquid-carrying pipe and its use in an automotive radiator | |
EP1113237B1 (en) | Heat exchange tube structured on both sides and process for making same | |
EP1518084B1 (en) | Stacked panel-shaped heat transmitter | |
DE2431162A1 (en) | FIBER TUBE | |
DE2657307A1 (en) | PIPE HEAD FOR A HEAT EXCHANGER | |
EP3572760B1 (en) | Package for heat and/or material transfer | |
EP0221095A1 (en) | Vortex packing and process for its manufacture. | |
DE10054158A1 (en) | Multi-chamber pipe with circular flow channels | |
DE2721321A1 (en) | HEAT TRANSFER WITH A WALL-LIKE SEPARATION FOR THE TWO MEDIA INVOLVED IN THE HEAT TRANSFER | |
DE2613747B2 (en) | Tubular heat exchanger | |
DE2735762C2 (en) | Finned tube and device for its manufacture | |
DE10210016B9 (en) | Heat exchange tube with a ribbed inner surface | |
EP1668303B1 (en) | Soldered heat exchanger network | |
DE19706544A1 (en) | Packing for rectification column of air separation plant | |
DE3635940A1 (en) | SLAT | |
EP0177904A2 (en) | Device for exchange of heat between two gases conducted in cross-flow to each other | |
DE19846347A1 (en) | Heat exchanger of aluminum or aluminum alloy is composed in layered structure of extruded profile tubes of rectangular configuration with several adjacent channels separated by longitudinal ribs | |
DE2547213A1 (en) | SCREW-SEAM PROFILE TUBE | |
DE2755521A1 (en) | HEAT TRANSFER PIPE AND METHOD FOR THE PRODUCTION THEREOF |
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 |
|
17P | Request for examination filed |
Effective date: 20010816 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
AKX | Designation fees paid |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
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): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
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 Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REF | Corresponds to: |
Ref document number: 50113077 Country of ref document: DE Date of ref document: 20071115 Kind code of ref document: P |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20080110 |
|
ET | Fr: translation filed | ||
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20080114 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: 20080103 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: 20071003 |
|
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: 20080303 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20071003 |
|
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: 20080704 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE 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: 20071003 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20080104 |
|
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 NON-PAYMENT OF DUE FEES Effective date: 20080831 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
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: 20080831 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080831 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: 20071003 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080816 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20090831 Year of fee payment: 9 Ref country code: GB Payment date: 20090812 Year of fee payment: 9 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20071003 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080816 |
|
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: 20071003 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20100824 Year of fee payment: 10 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080831 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20100816 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50113077 Country of ref document: DE Effective date: 20110301 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110301 |
|
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: 20100816 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20120430 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110831 |