EP0974804B1 - Wärmetauscher, insbesondere Abgaswärmetauscher - Google Patents
Wärmetauscher, insbesondere Abgaswärmetauscher Download PDFInfo
- Publication number
- EP0974804B1 EP0974804B1 EP99113222A EP99113222A EP0974804B1 EP 0974804 B1 EP0974804 B1 EP 0974804B1 EP 99113222 A EP99113222 A EP 99113222A EP 99113222 A EP99113222 A EP 99113222A EP 0974804 B1 EP0974804 B1 EP 0974804B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- plates
- ducts
- flow ducts
- flow channels
- 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
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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
- 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
-
- 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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0037—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the conduits for the other heat-exchange medium also being formed by paired plates touching each other
-
- 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
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2240/00—Spacing means
-
- 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
- F28F2250/102—Particular pattern of flow of the heat exchange media with change of flow direction
Definitions
- the invention relates to a heat exchanger, in particular an exhaust gas heat exchanger, consisting of a stack of heat exchanger plates that separate flow form channels that run parallel to each other, with collecting spaces, inlet and outlet for the exhaust gas and for the preferably liquid coolant.
- EP 677 715 A1 represents the prior art, of which the preamble has been derived.
- the exhaust gas heat exchanger there is advantageous because that Exhaust gas without significant deflections that cause pressure losses Can flow through the heat exchanger.
- the stack of heat exchanger plates by an enclosure enclosed, which leads to the disadvantages already mentioned.
- the plate pack is executed according to the so-called rod-plate construction, which means many individual There are components that need to be assembled. That can be as be viewed elaborately.
- the object of the invention is a compact and efficient heat exchanger to propose that is inexpensive to manufacture and a better one Should have flexibility with regard to the installation space and the connection positions.
- the solution according to the invention results from the patent claims.
- the heat exchanger according to the invention has flow channels of different lengths. The range mentioned above corresponds approximately to the length of the shorter flow channels.
- the rectangular slats can be, or have a shape other than rectangular can. Rectangular slats ensure good heat transfer on the one hand, without on the other hand to offer the exhaust gas opportunities to deposit and in the course of Time to close the flow channels.
- the heat exchanger plates have knobs on the coolant side.
- the pimples one heat exchanger plate touch the knobs of the next heat exchanger plate, so that they can be connected to each other and to Compactness of the heat exchanger contribute.
- knobs instead of these knobs also fins or other turbulence-generating elements can be provided.
- Both flow channels are through Merging heat exchanger plates formed, all the same Have shape, which is very advantageous in terms of production technology and to reduce costs contributes.
- the different length of the flow channels is also through this a kind of heat exchanger plates have been realized.
- the heat exchanger plates have edges that extend across the entire length of the panels Formed side, for example downwards with respect to the plate level, (Back) and one over the length of the shorter flow channels Have edge characteristics that are opposite to the deformation, i.e. after is formed above the plate level (front).
- An advantageous embodiment has the ones already mentioned on the same side of the panel (front) Nubs.
- Two heat exchanger plates each with their over the Total length-reaching edges, so with the back, put together and form the one flow channel between them. The other flow channel is realized in that the next heat exchanger plate on the front Front is placed, which is followed by back to back, etc.
- the inventive idea with shorter and longer flow channels can of course also - realized differently than described above - thereby be that instead of the edge reshaping and edge stamping rods be inserted, which have the length of the shorter flow channels and the are connected to the plates.
- the plates are preferably on the opposite longitudinal edges only folded. Two such plates will be then folded together like a box and forming a flow channel within out.
- the adjacent flow channel is through the mentioned rods formed or limited on the long sides.
- the water-cooled exhaust gas heat exchanger 1 is in a first in FIGS. 1 to 6 Embodiment shown.
- the exhaust gas heat exchanger consists entirely of a suitable stainless steel. All connections between the parts are made by soldering.
- Fig. 1 the left collecting space 4 for the cooling water and the collecting space 7 drawn for the exhaust gas in section to show details.
- the exhaust gas flows through the inlet 14 into the collecting space 7 and through the flow channels 2 in a straight path through the heat exchanger 1 to pass this over the Leave outlet 15 again.
- the inlets and outlets 14, 15 have suitable ones Connections that have been shown here simply as connection flanges.
- the Cooling water flows at the inlet 8 into the collecting space 4 and is distributed over the Flow channels 3, which run parallel to the flow channels 2 and alternate with these.
- the collecting rooms 4 are from the tube sheets 5 and 6 been formed, the jacket 5 of the collecting spaces 4 by the erected Edge 12 of the tube sheet 5, the one with the edge of the tube sheet 6 Connection surface 13 forms, has been produced in this embodiment.
- the stack consisting of identical heat exchanger plates P1 and P2 has shorter flow channels 3 on and longer flow channels 2, what below is explained in more detail.
- the different lengths L and I of the flow channels 2 and 3 was drawn in Fig. 1.
- the longer flow channels 2 go through the collecting spaces 4 and are in the openings 17 of the second Pipe base 6 attached sealingly. (see also FIG. 4, in which three openings 17 for which three flow channels 2 are shown)
- FIG. 4 and also FIG. 3 further show that in the flow channels 2 Rectangular fins 25 have been inserted to improve the heat exchange.
- the fins 25 are with the heat exchanger plates P1 and P2 and with connected to the walls of the flow channels 2.
- the tube sheet 5 merely has an opening 16, as shown in FIG. 7.
- the opening 16 is a rectangle.
- Fig. 6 shows in an enlarged section the attachment of the Heat exchanger plates P1 and P2 in this opening 16.
- An end plate 11 has been drawn.
- An identical plate 11 is located at the bottom of the opening 16, not shown.
- the end plates 11 cover the heat exchanger plates P1; P2 completely (Fig. 2) and limit the upper and lower flow channel 3, that for cooling water is provided.
- identical heat exchanger plates were used P1 and P2 are used, which have been shown in FIGS. 10 to 12 are.
- the heat exchanger plates P1; P2 are rectangular here and have consequently two opposite longitudinal edges 21.
- the heat exchanger plates P1; P2 are connected to their edge features 23 and the flow channels 3 train. Into these flow channels 3 extend into This embodiment knobs 20.
- the knobs 20 have the same height like the margins 23 and are otherwise arranged so that they with the knobs 20 on the adjacent heat exchanger plate P1 or P2 Touch to be connected as well.
- Fig. 8 shows another embodiment in which the edge 21 of the heat exchanger plates P1 and P2 were simply folded over the entire length L. is, so that the heat exchanger plates P1 and P2 are nested one inside the other can be used to form the flow channels 2. Between these flow channels 2 is on both edges 21 each a rod 24, which is twice the height of Knobs 20 has. The length of the rods 24 corresponds to the length l, so that on in this way the flow channels 3 can be formed.
- FIG. 9 Another embodiment is shown in FIG. 9, which makes it clear that with regard to the flow through the heat exchanger realizes all possible variants are, whereby the proposed basic principle is not abandoned.
- the inlet 14 and the outlet 15 are arranged on this collecting space 7, so that the exhaust gas for example via two flow channels 3 in the one on the opposite Side arranged deflection plenum 18 flow and after the deflection return to outlet 15 via the other two flow channels 3 can.
- Another embodiment not shown, has the inlet and outlet for the coolant on one side of the heat exchanger and the inlet and outlet for the exhaust gas on the opposite side of the heat exchanger.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Description
- 1
- Abgaswärmetauscher
- 2
- längere Strömungskanäle
- 3
- kürzere Strömungskanäle
- 4
- Sammelraum, Kühlwasser
- 5
- erster Rohrboden
- 6
- zweiter Rohrboden
- 7
- Sammelraum, Abgas
- 8
- Einlaß, Kühlwasser
- 9
- Auslaß, Kühlwasser
- 10
- Mantel, Sammelraum 4
- 11
- Abschlußplatte
- 12
- Bord am Rohrboden 5
- 13
- Verbindungsfläche
- 14
- Einlaß, Abgas
- 15
- Auslaß, Abgas
- 16
- Öffnung, Rohrboden 5
- 17
- Öffnungen, Rohrboden 6
- 18
- Umlenkraum, Abgas
- 19
- Trennplatte
- 20
- Noppen
- 21
- Rand der Wärmetauscherplatten
- 22
- Umformung am Rand
- 23
- Randausprägung
- 24
- Stäbe
- 25
- Lamellen
- P1;P2
- Wärmetauscherplatten
- R;F
- Rückseite, Frontseite der Platten
- L
- Länge der langen Strömungskanäle
- I
- Länge der kurzen Strömungskanäle, = Bereich in dem beide Kanäle parallel laufen
Claims (12)
- Wärmetauscher, insbesondere Abgaswärmetauscher, bestehend aus einem Stapel von Wärmetauscherplatten (P1; P2), die getrennte Strömungskanäle (2, 3) ausbilden, die parallel zueinander verlaufen, mit Sammelräumen (7, 4) Einlaß und Auslaß (8, 9, 14, 15) für das Abgas sowie für das vorzugsweise flüssige Kühlmittel,
dadurch gekennzeichnet, daß
die aus Wärmetauscherplatten (P1; P2) gebildeten Strömungskanäle (2) für das eine Mittel länger (L) sind, als die Strömungskanäle (3) für das andere Mittel und wobei die längeren Strömungskanäle (2) durch den Ein-und/oder Auslässe (8; 9) aufweisenden wenigstens einen Sammelraum (4) für dieses andere Mittel hindurchgehen und daß in dem Bereich (l), in dem beide Strömungskanäle (2; 3) parallel zueinander verlaufen, der Wärmetauscher (1) ohne Gehäuse ausgeführt ist. - Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, daß der Sammelraum (4) von zwei gegenüberliegenden Rohrböden (5; 6) begrenzt und von einem für das andere Mittel Mantel (10) umgeben ist, an dem sich die Ein-und/oder Auslässe (8; 9) befinden.
- Wärmetauscher nach Anspruch 2, dadurch gekennzeichnet, daß der Mantel durch den Bord (12) des einen Rohrbodens (5) gebildet ist, der mit dem Bord des anderen Rohrbodens (6) eine Verbindungsfläche (13) ausbildet.
- Wärmetauscher nach Anspruch 2 oder Anspruch 3, dadurch gekennzeichnet, daß der erste Rohrboden (5) eine Öffnung (16) aufweist, in der der beide Strömungskanäle (2; 3) aufweisende Stapel von Wärmetauscherplatten (P1; P2) mündet und der zweite Rohrboden (6) Öffnungen (17) aufweist, in denen die längeren Strömungskanäle (2) münden.
- Wärmetauscher nach einem der vorstehenden Ansprüche , dadurch gekennzeichnet, daß der Einlaß (14) und der Auslaß (15) für das Abgas und/oder für das Kühlmittel an gegenüberliegenden Enden des Wärmetauschers (1) angeordnet sind.
- Wärmetauscher nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Einlaß (14) und der Auslaß (15) für das Abgas und/oder für das Kühlmittel an einer Seite des Wärmetauschers (1) angeordnet sind und am gegenüberliegenden Ende ein Umlenksammelraum (16) vorgesehen ist.
- Wärmetauscher nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Wärmetauscherplatten (P1; P2) vorzugsweise an den gegenüberliegenden Längsrändern (21) über die Gesamtlänge der Platten zu einer Plattenseite (Rückseite R) hin umgeformt (22) sind und über einen Teil (I) der Gesamtlänge (L) zur anderen Plattenseite (Frontseite F) hin eine Randausprägung (23) aufweisen.
- Wärmetauscher nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Wärmetauscherplatten (P1; P2) Rückseite (R) an Rückseite (R) liegend die längeren Strömungskanäle (2) ausbilden, an die sich mit Frontseite (F) an Frontseite (F) liegende Wärmetauscherplatten (P1; P2) anschließen, die die kürzeren Strömungskanäle (3) ausformen, auf die wieder Rückseite (R) an Rückseite (R) liegende Wärmetauscherplatten (P1; P2) folgen.
- Wärmetauscher nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die kürzeren Strömungskanäle (3) vorzugsweise Kühlwasserkanäle sind und die längeren Kanäle (2) für das Abgas gedacht sind.
- Wärmetauscher nach einem der Ansprüche 2-9, dadurch gekennzeichnet, daß die äußeren Kanäle (3) Kühlwasserkanäle sind, die durch je eine Abschlußplatte (11) begrenzt sind, wobei der eine Rohrboden (5) eine etwa rechteckförmige Öffnung (16) aufweist um den Stapel der Wärmetauscherplatten (P1; P2) mit beiden Strömungskanälen (2; 3) und die Enden der Abschlußplatten (11) aufzunehmen.
- Wärmetauscher nach einem der Ansprüche 2 bis 9, dadurch gekennzeichnet, daß die äußeren Kanäle (2) Abgaskanäle sind, wobei der eine Rohrboden (5) eine Öffnung besitzt, die in den Ecken Ausschnitte aufweist, für die Randausprägungen (23) der obersten und untersten Wärmetauscherplatte (P1; P2), um den gesamten Stapel der Wärmetauscherplatten (P1; P2) aufzunehmen.
- Wärmetauscher nach einem der Ansprüche 1 bis 6 und 9 bis 10, dadurch gekennzeichnet, daß die Wärmetauscherplatten (P1; P2) an den Rändern (21) eine über die Gesamtlänge (L) reichende Abkantung aufweisen und zur Bildung der Strömungskanäle (2) schachtelartig ineinandergelegt sind sowie zur Bildung der Strömungskanäle (3), Stäbe (24) zwischen den Plattenpaaren angeordnet sind, deren Länge etwa der Länge (l) der kürzeren Strömungskanäle (3) entspricht.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833338 | 1998-07-24 | ||
DE19833338A DE19833338A1 (de) | 1998-07-24 | 1998-07-24 | Wärmetauscher, insbesondere Abgaswärmetauscher |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0974804A2 EP0974804A2 (de) | 2000-01-26 |
EP0974804A3 EP0974804A3 (de) | 2000-06-07 |
EP0974804B1 true EP0974804B1 (de) | 2002-10-09 |
Family
ID=7875170
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99113222A Expired - Lifetime EP0974804B1 (de) | 1998-07-24 | 1999-07-08 | Wärmetauscher, insbesondere Abgaswärmetauscher |
Country Status (6)
Country | Link |
---|---|
US (1) | US6293337B1 (de) |
EP (1) | EP0974804B1 (de) |
JP (1) | JP2000097578A (de) |
AT (1) | ATE225926T1 (de) |
DE (2) | DE19833338A1 (de) |
ES (1) | ES2185276T3 (de) |
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JP7259287B2 (ja) * | 2018-11-26 | 2023-04-18 | 株式会社デンソー | 熱交換器 |
US11280559B2 (en) * | 2020-05-12 | 2022-03-22 | Hanon Systems | Dumbbell shaped plate fin |
CN113432475A (zh) * | 2021-08-27 | 2021-09-24 | 南通山剑石墨设备有限公司 | 一种基于高温焚烧烟气用的石墨换热装置 |
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DE8319866U1 (de) * | 1983-12-08 | WINDHOFF-Perfex GmbH, 4445 Neuenkirchen | Röhrenwärmetauscher | |
CA692015A (en) * | 1964-08-04 | R. Otto Howard | Plate type heat exchanger | |
BE460234A (de) * | ||||
FR610441A (fr) * | 1925-05-08 | 1926-09-06 | Dispositif d'étanchéité des échangeurs de chaleur lamellaires | |
GB293759A (en) * | 1927-07-11 | 1928-11-01 | Paul Leveque | Improvements in heat exchanging apparatus |
US2566310A (en) * | 1946-01-22 | 1951-09-04 | Hydrocarbon Research Inc | Tray type heat exchanger |
DE1105894B (de) * | 1958-06-14 | 1961-05-04 | Still Fa Carl | Waermeaustauscher mit eng aneinander-liegenden Leitungswegen fuer die beiden Waermeaustauschmittel in einem Block |
CH376944A (de) * | 1960-03-28 | 1964-04-30 | Luwa Ag | Wärmeaustauscher |
US3165152A (en) * | 1960-08-11 | 1965-01-12 | Int Harvester Co | Counter flow heat exchanger |
US3212572A (en) * | 1961-06-21 | 1965-10-19 | United Aircraft Prod | Plate type heat exchanger |
US3289757A (en) * | 1964-06-24 | 1966-12-06 | Stewart Warner Corp | Heat exchanger |
US3460611A (en) * | 1967-10-06 | 1969-08-12 | Gen Motors Corp | Heat exchanger of plate fin modules |
US3797565A (en) * | 1971-11-22 | 1974-03-19 | United Aircraft Prod | Refrigerated gas dryer |
US4029146A (en) * | 1974-04-01 | 1977-06-14 | John Zink Company | Corrugated sheet heat exchanger |
US4276927A (en) * | 1979-06-04 | 1981-07-07 | The Trane Company | Plate type heat exchanger |
DE3045326C2 (de) * | 1980-12-02 | 1982-10-21 | Autz & Hermann, 6900 Heidelberg | Zur staubfreien Kühlung eines Schaltschrankes dienender Wärmetauscher |
US4475589A (en) * | 1981-01-21 | 1984-10-09 | Tokyo Shibaura Denki Kabushiki Kaisha | Heat exchanger device |
DE3124918A1 (de) * | 1981-06-25 | 1983-02-10 | Lendzian, Helge, Dipl.-Ing., 4600 Dortmund | Vorrichtung zum waermetausch zwischen mindestens zwei medien |
JPS6186590A (ja) * | 1984-10-03 | 1986-05-02 | Hisaka Works Ltd | 熱交換器 |
FR2575279B1 (fr) * | 1984-12-21 | 1989-07-07 | Barriquand | Echangeur a plaques |
US4681155A (en) * | 1986-05-01 | 1987-07-21 | The Garrett Corporation | Lightweight, compact heat exchanger |
FR2617583B1 (fr) * | 1987-07-02 | 1989-12-01 | Barriquand | Echangeur de chaleur pour gaz a temperatures fortement differentes dont l'une est haute ou tres haute |
DE4117778C1 (de) * | 1991-03-13 | 1992-09-10 | Hans Dr. 3559 Battenberg De Viessmann | |
DE9406197U1 (de) | 1994-04-14 | 1994-06-16 | Behr Gmbh & Co | Wärmetauscher zum Kühlen von Abgas eines Kraftfahrzeugmotors |
DE29616354U1 (de) | 1996-09-19 | 1997-01-09 | Laengerer & Reich Gmbh & Co | Abgaswärmetauscher |
-
1998
- 1998-07-24 DE DE19833338A patent/DE19833338A1/de not_active Withdrawn
-
1999
- 1999-07-08 DE DE59902999T patent/DE59902999D1/de not_active Expired - Lifetime
- 1999-07-08 EP EP99113222A patent/EP0974804B1/de not_active Expired - Lifetime
- 1999-07-08 AT AT99113222T patent/ATE225926T1/de active
- 1999-07-08 ES ES99113222T patent/ES2185276T3/es not_active Expired - Lifetime
- 1999-07-23 US US09/360,216 patent/US6293337B1/en not_active Expired - Fee Related
- 1999-07-26 JP JP11210532A patent/JP2000097578A/ja active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10359806A1 (de) * | 2003-12-19 | 2005-07-14 | Modine Manufacturing Co., Racine | Wärmeübertrager mit flachen Rohren und flaches Wärmeübertragerrohr |
US9395121B2 (en) | 2007-01-23 | 2016-07-19 | Modine Manufacturing Company | Heat exchanger having convoluted fin end and method of assembling the same |
Also Published As
Publication number | Publication date |
---|---|
ATE225926T1 (de) | 2002-10-15 |
DE19833338A1 (de) | 2000-01-27 |
EP0974804A3 (de) | 2000-06-07 |
EP0974804A2 (de) | 2000-01-26 |
US6293337B1 (en) | 2001-09-25 |
JP2000097578A (ja) | 2000-04-04 |
DE59902999D1 (de) | 2002-11-14 |
ES2185276T3 (es) | 2003-04-16 |
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