EP1322841B1 - Entlüftungsvorrichtung für ein kurbelgehäuse - Google Patents
Entlüftungsvorrichtung für ein kurbelgehäuse Download PDFInfo
- Publication number
- EP1322841B1 EP1322841B1 EP01969261A EP01969261A EP1322841B1 EP 1322841 B1 EP1322841 B1 EP 1322841B1 EP 01969261 A EP01969261 A EP 01969261A EP 01969261 A EP01969261 A EP 01969261A EP 1322841 B1 EP1322841 B1 EP 1322841B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plates
- rotor
- connection
- venting device
- plate
- 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.)
- Revoked
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B5/00—Other centrifuges
- B04B5/12—Centrifuges in which rotors other than bowls generate centrifugal effects in stationary containers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B5/00—Other centrifuges
- B04B5/12—Centrifuges in which rotors other than bowls generate centrifugal effects in stationary containers
- B04B2005/125—Centrifuges in which rotors other than bowls generate centrifugal effects in stationary containers the rotors comprising separating walls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0422—Separating oil and gas with a centrifuge device
Definitions
- the invention relates to a ventilation device for a Crankcase of an internal combustion engine with the features of The invention also relates to a method according to claim 13 and a use according to claim 15.
- a venting device is known from DE 198 03 872 A1, which has a centrifugal oil separator that one Mixture inlet for an oil-air mixture and an air outlet for clean air and an oil outlet for oil.
- This centrifugal oil separator has a rotating drive Housing which has an outflow funnel which is oriented coaxially to the axis of rotation of the housing and which forms the air outlet coaxial to the axis of rotation. Radial between this outflow funnel and an outside one
- the mixture inlet is essentially ring-shaped in the housing wall educated. Baffles protrude into this mixture inlet and thereby force a multiple deflection of the flow of the oil-air mixture. Through these redirections the oil separates from the baffles. By centrifugal forces the oil becomes the outer walls of the rotating housing transported. In these outer walls are suitable Make several oil outlet holes through which the separated oil can escape from the housing. The ones from Oil-cleaned clean air exits through the air outlet Inside of the housing.
- a ventilation device is the at the beginning, known as a plate separator trained centrifugal oil separator used.
- the Disc separator has a stator designed as a housing in which a rotor is housed.
- the rotor owns several plates that are parallel to each other along the rotor axis and are arranged coaxially to the rotor axis. Between each a gap is formed between two adjacent plates, one with an annular space formed inside the rotor a space that connects the rotor inside the housing surrounds.
- the annulus of the rotor is with the mixture inlet forming first connection connected during the Space of the housing with a second one forming the air outlet Connection as well as with a third one forming the oil outlet Connection connected. Accordingly, the rotor of the known plate separator in operation radially from the inside flowed through outside.
- plate separators For separating particles, e.g. Dust, from a Fluid flow, especially from a gas flow, are plate separators generally known, cf. e.g. US 2,104,683, US 5,746,789 and US 3,234,716.
- the present invention addresses the problem for a ventilation device of the type mentioned to provide an improved embodiment, the one particular high quality oil separation possible.
- the invention is based on the general idea of the plate separator to be designed so that its rotor is in operation flow through the plate separator radially from the outside inwards becomes. It has been shown that this improves performance the plate separator can be increased significantly.
- the gap length and the Gap width can for a given volume flow and predetermined pressure drop the desired cleaning effect be achieved. It is clear that the cleaning effect also depends on the speed of the rotor.
- the plates can be a block of plates form, with the adjacent plates attached to each other are, with this plate block over its axial ends with a central rotor shaft of the rotor rotatably connected is.
- the plate block forms one one-piece assembly, which as such is attached to the rotor shaft becomes. Accordingly, at least the plates are the ones are not arranged between the axially outer plates directly connected to the rotor shaft. The connection of the plate block to the rotor shaft then takes place via the two axially outer plate.
- At least two neighboring ones can Plates form a stack of plates that are made in one piece is.
- a stack of plates can for example by an injection molding process can be produced.
- Through the one-piece Manufacture of these plate stacks are the associated ones Plates already firmly connected to each other, creating additional Fastening steps can be omitted.
- a Plate block formed by at least one stack of plates his. Because the plates are not in a stack of plates need to be attached, the production is simplified of the plate block. Another important advantage of this embodiment arises when several stacks of plates Form each plate block, because then the Number of plates in the plate block can be varied. For example a stack of plates always contains five plates. A block of plates in a first variant, 15 plates and a second variant have 20 plates. The number of plates depends, for example, on the volume flow to be cleaned. to The first variant is thus made up of three stacks of plates connected with each other. To train the second variant accordingly, four plates are stacked together connected. The extra effort to train two different ones Variants are minimal.
- the plate separator To further simplify the manufacture of the plate separator, is proposed between in the direction of the rotor axis to arrange adjacent plates spacers that create the respective gap. To assemble the plate block can thus be stacked plates and spacers be connected with each other in one work step by a welding process, for example.
- FIG. 1 shows a longitudinal section through a plate separator a ventilation device according to the invention.
- FIG. 1 an otherwise not shown Bleeding device on a plate separator 1, the one Stator 2 and a rotor 3 has.
- the stator 2 can for example on a crankcase of an internal combustion engine be attached.
- the rotor is 3 in the stator 2 rotatably, the stator 2 at the corresponding embodiment shown here corresponding Radial bearings 4 and 5, with which a rotor shaft 6 of Rotor 3 is rotatably mounted on the stator 2.
- the stator 2 forms a housing 7 in which the rotor 3 is arranged is. There is also a space inside the housing 7 8 formed, which surrounds the rotor 3.
- the rotor 3 has a plurality of plates 9, which run along a Rotor axis 19 parallel to each other and coaxial to the rotor axis 19 are arranged. It is between two neighboring ones Plates 9 formed a gap 10.
- Each of these Column 10 connects the plate 9 radially on the outside lying space 8 with a radially inside with respect to the plate 9 lying annular space 11, which is formed in the interior of the rotor 3 is and extends coaxially to the rotor shaft 6.
- This annular space 11 is connected to a first connection 12, while the room 8 with a second connection 13 and is connected to a third connection 14.
- a compressor 15 which is designed here as a radial compressor.
- a compressor wheel 16 of the compressor 15 is directly on the Rotor shaft 6 of the plate separator 1 is fixed in a rotationally fixed manner.
- the air provided there by the annular space 11 conveyed radially outward within the compressor wheel 16, where it enters a pressure chamber 17 of the compressor 15.
- This pressure chamber 17 is now connected to the first connection 12.
- the compressor 15 serves on the one hand to reduce the pressure loss, the flow through the plate separator 1 inevitably occurs, essentially balancing. on the other hand the compressor 15 can also be dimensioned in such a way that he has a pressure increase between the second port 13 and the first connection 12, that is to say above the separator-compressor unit, generated.
- the first serves Port 12 as an air outlet for those cleaned of oil Clean air
- the second connection 13 as a mixture inlet serves for the unpurified oil-air mixture.
- the third connection 14 forms an oil outlet through which the separated or separated oil are discharged from room 8 can.
- second connection 13 aligned axially parallel to the rotor axis 19 is, this second connection 13 at another Embodiment also inclined or transverse to the rotor axis 19, in particular radially to the rotor axis 19 or tangentially be arranged to the housing 7.
- Spacer elements 18 are arranged between adjacent plates 9, of which to maintain clarity in Fig. 1, however, are only symbolically drawn.
- This Spacer elements 18 are, for example, punctiform or spherical or in the form of webs.
- the neighboring plates 9 are in the direction the rotor axis 19 kept at a distance, whereby the Column 10 can be defined.
- these spacer elements 18 are in one piece with the plates 9 made.
- each plate shows 9 a plurality of such on an upper side facing the space 8 Spacer elements 18, which are in the assembled State on the underside of the annular space 11 support adjacent plates 9.
- the plates 9 are with the shape of a frustoconical sleeve, so that the surface line of the plate 9 is inclined with respect to the rotor axis 19 runs.
- the Surface lines of the plate 9 with the rotor axis 19 at an angle of about 45 °. It is clear that other angles up 90 ° are possible.
- the horizontal lines shown in the annular space 11 show the radially inner inner edges of the plates 9 and the radially inner mouths of column 10.
- the stacked plates 9 are axially between two holding elements 21 and 22 fixed, the one with the plates 9 interacting contour complementary to each axially outer plates 9 are formed. That way also between the holding elements 21, 22 and the itself supporting plate 9 each formed a gap 10. In Correspondingly, these can also be located axially outside Columns 10 spacer elements 18 may be arranged.
- the Holding elements 21 and 22 are non-rotatably on the rotor shaft 6 fixed. Due to the shape of the holding elements 21 and 22 and due to the shape of the plates 9, all plates 9 by a corresponding axial bracing between the Holding elements 21, 22 are fixed in a rotationally fixed manner on the rotor shaft 6 without further fastening measures between the Plates 9 and the rotor shaft 6 are required.
- the adjacent plates 9 are each attached to one another, whereby all plates 9 into a uniform plate block 20 are summarized.
- the connection between the Plates 9 can, for example, via the spacer elements 18 take place, the z. B. welded to the adjacent plate 9 are. It is also possible that the plate 9 through special connecting bars or other connecting elements are attached to each other, but not shown here are.
- the unitary plate block 20 thus formed can then be special simply be mounted on the rotor shaft 6, whereby the fixing of this plate block 20 also via the holding elements 21, 22 takes place.
- each plate 9 is separately attached to the rotor shaft 6 is, e.g. is each plate 9 positively on the Rotor shaft 6 plugged on.
- Plate 9 be made in one piece or in one piece, what especially with the help of a plastic injection molding process is feasible.
- Those made together in one body Plates 9 are referred to below as "stack of plates".
- the plate block 20 is constructed from several plate stacks.
- Fig. 1 such a stack of plates with a curly Brackets marked and designated 23.
- This Plate stack 23 includes, for example, three plates 9 are integrally formed in one piece.
- the respective application of the plate separator 1 or thus equipped venting device gives a volume flow to be cleaned of oil.
- the number of plates 9 is determined, with which the plate separator 1 must be equipped in order to to be able to achieve the desired degree of purity.
- the plate block 20 can be assembled or assembled.
- the plate stack 23 prefabricated, of which for example Variants with different number of plates are also available could be.
- the plate 9 or the plate block 20 between the holding elements 21 and 22 fixed to the rotor shaft 6, with additional Fastening measures for connecting the plate block 20 can be provided on the holding elements 21, 22.
- the plate separator 1 is driven by its rotor shaft 6, basically any drive for the rotor shaft 6 may be suitable.
- an oil centrifuge or the rotor shaft 6 to couple with an electric motor.
Description
Claims (16)
- Entlüftungsvorrichtung für ein Kurbelgehäuse einer Brennkraftmaschine mit einem Zentrifugal-Ölabscheider (1), der einen Gemischeinlass (13) für ein Luft-Öl-Gemisch und einen Luftauslass (12) für Reinluft sowie einen Ölauslass (14) für Öl aufweist und der als Tellerseparator (1) ausgebildet ist, der einen als Gehause (7) ausgebildeten Stator (2) aufweist, in dem ein Rotor (3) untergebracht ist, der mehrere Teller (9) aufweist, die entlang der Rotorachse (19) parallel zueinander und koaxial zur Rotorachse (19) angeordnet sind, wobei jeweils zwischen zwei benachbarten Tellern (9) ein Spalt (10) ausgebildet ist, der einen im Inneren des Rotors (3) ausgebildeten Ringraum (11) mit einem Raum (8) verbindet, der im Inneren des Gehäuses (7) den Rotor (3) umgibt, wobei der Ringraum (11) des Rotors (3) mit einem ersten Anschluss (12) und der Raum (8) des Gehäuses (7) mit einem zweiten Anschluss (13) sowie einem den Ölauslass bildenden dritten Anschluss (14) verbunden ist,
wobei
der erste Anschluss (12) den Luftauslass bildet und der zweite Anschluss (13) den Gemischeinlass bildet. - Entlüftungsvorrichtung nach Anspruch 1,
dadurch gekennzeichnet, dass die Teller (9) einen Tellerblock (20) bilden, bei dem benachbarte Teller (9) aneinander befestigt sind, wobei der Tellerblock (20) über seine axialen Enden mit einer zentralen Rotorwelle (6) des Rotors (3) drehfest verbunden ist. - Entlüftungsvorrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass wenigstens zwei benachbarte Teller (9) einen Tellerstapel (23) bilden, der einteilig hergestellt ist. - Entlüftungsvorrichtung nach den Ansprüchen 2 und 3,
dadurch gekennzeichnet, dass der Tellerblock (20) durch mindestens einen Tellerstapel (23) gebildet ist. - Entlüftungsvorrichtung nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass jeder Teller (9) im wesentlichen die Gestalt einer kegelstumpfförmigen Hülse aufweist. - Entlüftungsvorrichtung nach Anspruch 5,
dadurch gekennzeichnet, dass die Mantellinie der Teller (9) mit der Rotorachse (19) einen Winkel von etwa 45° einschließt. - Entluftungsvorrichtung nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, dass in Richtung der Rotorachse (19) zwischen benachbarten Tellern (9) Distanzelemente (18) angeordnet sind, die den jeweiligen Spalt (10) erzeugen. - Entlüftungsvorrichtung nach Anspruch 7,
dadurch gekennzeichnet, dass die Distanzelemente (18) einteilig mit den Tellern (9) hergestellt sind. - Entlüftungsvorrichtung nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, dass die Entlüftungsvorrichtung einen Verdichter (15) aufweist, der dem Tellerseparator (1) vorgeschaltet oder nachgeschaltet ist, wobei der Verdichter (15) im wesentlichen so dimensioniert ist, dass er einen Druckverlust, der sich bei der Durchstromung des Tellerseparators (1) einstellt, zumindest ausgleicht. - Entlüftungsvorrichtung nach Anspruch 9,
dadurch gekennzeichnet, dass der Verdichter (15) als Radialverdichter ausgebildet ist, der dem Tellerseparator (1) auf der Reinluftseite nachgeschaltet ist. - Entlüftungsvorrichtung nach Anspruch 9 oder 10
dadurch gekennzeichnet, dass ein Verdichterrad (16) des Verdichters (15) am Rotor (3) des Tellerseparators (1) befestigt ist. - Entlüftungsvorrichtung nach Anspruch 11,
dadurch gekennzeichnet, dass eine Austrittsöffnung des Ringraums (11) direkt in der Niederdruckseite des Verdichterrads (16) mündet. - Verfahren zur Herstellung eines Tellerseparators (1)
nach einem der Ansprüche 1 bis 12, wobei in Abhängigkeit des vom Öl zu reinigenden Volumenstroms die Anzahl der Teller (9) bestimmt wird, wobei mit dieser Tellerzahl ein Tellerblock (20) gebildet wird, wobei dieser Tellerblock (20) dann an der Rotorwelle (6) befestigt wird. - Verfahren nach Anspruch 13,
dadurch gekennzeichnet, dass der Tellerblock (20) aus mehreren vorgefertigten Tellerstapeln (23) aufgebaut wird, die so kombiniert werden, dass der Tellerblock (20) die gewünschte Tellerzahl besitzt, wobei die Tellerstapel (23) unterschiedliche Telleranzahlen aufweisen können. - Verwendung eines Tellerseparators (1) mit einem als Gehäuse (7) ausgebildeten Stator (2), in dem ein Rotor (3) untergebracht ist, der mehrere Teller (9) aufweist, die entlang der Rotorachse (19) parallel zueinander und koaxial zur Rotorachse (19) angeordnet sind, wobei jeweils zwischen zwei benachbarten Tellern (9) ein Spalt (10) ausgebildet ist, der einen im Inneren des Rotors (3) ausgebildeten Ringraum (11) mit einem Raum (8) verbindet, der im Inneren des Gehäuses (7) den Rotor (3) umgibt, wobei der Ringraum (11) des Rotors (3) mit einem ersten Anschluss (12) und der Raum (8) des Gehauses (7) mit einem zweiten Anschluss (13) sowie einem einen Ölauslass bildenden dritten Anschluss (14) verbunden ist, als Zentrifugal-Ölabscheider in einer Entlüftungsvorrichtung für ein Kurbelgehäuse einer Brennkraftmaschine, derart, dass der erste Anschluss (12) als Luftauslass dient, während der zweite Anschluss (13) als Gemischeinlass dient.
- Verwendung nach Anspruch 15, gekennzeichnet durch die kennzeichnenden Merkmale wenigstens eines der Ansprüche 2 bis 12.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10044615 | 2000-09-09 | ||
DE10044615A DE10044615A1 (de) | 2000-09-09 | 2000-09-09 | Entlüftungsvorrichtung für ein Kurbelgehäuse |
PCT/DE2001/003286 WO2002020954A1 (de) | 2000-09-09 | 2001-08-22 | Entlüftungsvorrichtung für ein kurbelgehäuse |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1322841A1 EP1322841A1 (de) | 2003-07-02 |
EP1322841B1 true EP1322841B1 (de) | 2004-08-11 |
Family
ID=7655621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01969261A Revoked EP1322841B1 (de) | 2000-09-09 | 2001-08-22 | Entlüftungsvorrichtung für ein kurbelgehäuse |
Country Status (5)
Country | Link |
---|---|
US (1) | US6973925B2 (de) |
EP (1) | EP1322841B1 (de) |
AT (1) | ATE273446T1 (de) |
DE (2) | DE10044615A1 (de) |
WO (1) | WO2002020954A1 (de) |
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WO2017189516A1 (en) | 2016-04-28 | 2017-11-02 | Cummins Filtration Ip, Inc. | Inside-out rotating coalescer with gas exit through hollow shaft |
DE202016102827U1 (de) * | 2016-05-27 | 2017-09-18 | 3Nine Ab | Ölabscheider |
EP3315204B1 (de) | 2016-10-31 | 2019-05-08 | Alfa Laval Corporate AB | Stapel von trennscheiben |
EP3315205A1 (de) | 2016-10-31 | 2018-05-02 | Alfa Laval Corporate AB | Zentrifugalabscheider |
EP3315203B1 (de) | 2016-10-31 | 2019-07-03 | Alfa Laval Corporate AB | Trennscheibe für einen zentrifugalabscheider |
DE102017205852B3 (de) * | 2017-04-06 | 2018-05-17 | Audi Ag | Tellerseparator |
DE102017206181A1 (de) | 2017-04-11 | 2018-10-11 | Polytec Plastics Germany Gmbh & Co. Kg | Tellerseparator mit gekrümmten Tellern |
DE112018002354T5 (de) | 2017-06-20 | 2020-01-23 | Cummins Filtration Ip, Inc. | Axialstromzentrifugalabscheider |
DE102018105588A1 (de) | 2018-03-12 | 2019-09-12 | Hengst Se | Zentrifugalabscheider zum Abscheiden von Öltröpfchen aus dem Kurbelgehäuseentlüftungsgas einer Brennkraftmaschine |
DE102019101141A1 (de) | 2019-01-17 | 2020-07-23 | Bayerische Motoren Werke Aktiengesellschaft | Entlüftungsvorrichtung für ein Kurbelgehäuse |
EP3821984B1 (de) * | 2019-11-14 | 2022-06-29 | Alfdex AB | Plattenstapel, rotoreinheit, zentrifugalabscheider, verfahren zur bereitstellung eines plattenstapels und verfahren zur bereitstellung einer rotoreinheit |
EP3978136B1 (de) | 2020-10-05 | 2023-05-10 | Alfa Laval Corporate AB | Modulares zentrifugalabscheidersystem |
US11951435B1 (en) | 2022-10-18 | 2024-04-09 | Ge Infrastructure Technology Llc | Vapor separation systems and methods |
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US2104683A (en) | 1933-07-06 | 1938-01-04 | Rosen Van | Dust separator |
DE749024C (de) * | 1942-05-23 | 1952-09-04 | Daimler Benz Ag | OElentschaeumer fuer Brennkraftmaschinen, insbesondere Flugmotoren |
NL285656A (de) * | 1961-11-22 | |||
DE3519543A1 (de) * | 1985-05-31 | 1986-12-04 | Audi AG, 8070 Ingolstadt | Vorrichtung zur verminderung der schadstoffe im abgas einer brennkraftmaschine |
DE3813646A1 (de) * | 1988-04-22 | 1989-11-02 | Heckmann Wolfgang | Trommelseparator |
US5239972A (en) * | 1992-03-24 | 1993-08-31 | Nippon Soken, Inc. | Gas/liquid separation device |
US5542402A (en) * | 1995-04-05 | 1996-08-06 | Ford Motor Company | Positive crankcase ventilation system with a centrifugal oil separator |
US5746789A (en) * | 1995-11-28 | 1998-05-05 | Innovatech, Inc. | Apparatus for separating particulates from a fluid stream |
DE19803646C2 (de) | 1997-02-05 | 2002-12-19 | Era Beschichtung Gmbh & Co Kg | Verfahren zum Beschichten von Flächengebilden |
SE512108C2 (sv) * | 1997-04-29 | 2000-01-24 | Volvo Lastvagnar Ab | Förbränningsmotor med en ventilationsanordning för att släppa ut förbränningsgaser från vevhuset |
DE19803872C2 (de) * | 1998-01-31 | 2001-05-10 | Daimler Chrysler Ag | Entlüfungsvorrichtung für ein Kurbelgehäuse einer Brennkraftmaschine |
SE9801567D0 (sv) * | 1998-05-04 | 1998-05-04 | Alfa Laval Ab | Sätt och anläggning för rening av gaser från en förbränningsmotor |
US6152120A (en) * | 1999-06-04 | 2000-11-28 | Caterpillar Inc. | Diesel engine system with oil-air separator and method of operation |
SE515302C2 (sv) * | 1999-11-15 | 2001-07-09 | Alfa Laval Ab | Ett sätt och en apparat för rening av gas |
JP3923288B2 (ja) * | 2001-08-06 | 2007-05-30 | 本田技研工業株式会社 | エンジンの気液分離装置 |
-
2000
- 2000-09-09 DE DE10044615A patent/DE10044615A1/de not_active Withdrawn
-
2001
- 2001-08-22 AT AT01969261T patent/ATE273446T1/de not_active IP Right Cessation
- 2001-08-22 US US10/362,637 patent/US6973925B2/en not_active Expired - Fee Related
- 2001-08-22 DE DE50103251T patent/DE50103251D1/de not_active Revoked
- 2001-08-22 EP EP01969261A patent/EP1322841B1/de not_active Revoked
- 2001-08-22 WO PCT/DE2001/003286 patent/WO2002020954A1/de active IP Right Grant
Also Published As
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---|---|
DE50103251D1 (de) | 2004-09-16 |
US6973925B2 (en) | 2005-12-13 |
DE10044615A1 (de) | 2002-04-04 |
ATE273446T1 (de) | 2004-08-15 |
EP1322841A1 (de) | 2003-07-02 |
US20030178014A1 (en) | 2003-09-25 |
WO2002020954A1 (de) | 2002-03-14 |
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