EP1070848A1 - Verdrängermaschine für kompressible Medien - Google Patents
Verdrängermaschine für kompressible Medien Download PDFInfo
- Publication number
- EP1070848A1 EP1070848A1 EP99114031A EP99114031A EP1070848A1 EP 1070848 A1 EP1070848 A1 EP 1070848A1 EP 99114031 A EP99114031 A EP 99114031A EP 99114031 A EP99114031 A EP 99114031A EP 1070848 A1 EP1070848 A1 EP 1070848A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- slope
- displacement machine
- motors
- machine according
- inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B29/00—Other pumps with movable, e.g. rotatable cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/082—Details specially related to intermeshing engagement type pumps
- F04C18/084—Toothed wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/40—Electric motor
- F04C2240/402—Plurality of electronically synchronised motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/50—Bearings
- F04C2240/51—Bearings for cantilever assemblies
Definitions
- the invention relates to a displacement machine for compressible Media, especially dry-running vacuum pump, with at least two shafts with rotors acting as helical Profile bodies are formed and their profiles during rotation mesh like a gear and run without contact to each other, the slope of the helical profile body decreases from inlet to outlet.
- the object of the invention is to provide a displacement machine of the type mentioned, which is a cheaper Shows pumping behavior and increases the delivery rate is.
- the solution according to the invention is that the helical Profile body are double and the Slopes at the inlet end and outlet end of the helical Profile bodies are constant and in between of the larger Slope at the inlet end to the smaller slope at the outlet end the slope decreases continuously.
- the slope is therefore constant at the inlet end. That’s why original delivery volume the size of the slope on Inlet end corresponds. This funding volume will not reduced that the slope decreases immediately.
- a constant slope is again provided at the outlet end, which is less than the slope at the inlet end. This will the mentioned problems of backflow are greatly reduced, because over one turn or even several turns in the there is essentially constant pressure. This also makes the Final pressure of the pump reduced. At the same time because of the smaller funding volume reduces the power consumption.
- the slopes are at the inlet and outlet ends constant over at least one turn.
- the slope at the outlet end is constant over at least two turns. This gives you not only get better sealing and less backflow, but also better dissipation of the heat of compression. This then arises with a dry-running vacuum pump the heat of compression through the volume reduction and Heat of compression due to the penetration of outside air at the outlet end no longer in the same place and can therefore do better be dissipated.
- the number of turns over which the slope is constant depends on the desired operating conditions of the pump.
- a particularly favorable behavior of the displacement machine in particular in the vacuum range is obtained if provided is that the shafts are each driven by their own electric motors be, the angular positions of the shafts with resolvers the motors are determined on the basis of their signals be electronically synchronized, and being the waves Have gears that mesh and their angular play is smaller than that of the profile body.
- the rotors are not driven by gears, but are completely contact-free thanks to our own electric motors driven, the gears only have the purpose prevent in the event of failure of the electronic synchronization, that the sensitive surfaces of the rotors touch and get damaged. Instead, the Touch gears, which is not a problem, in particular, if they are provided with the appropriate surface.
- Three-phase motors have proven to be particularly suitable for operation proven with permanent magnetic rotor as drive.
- Fig. 1 there are one of several Parts of assembled pump housing 1 with bearings 2 two shafts 3 stored on which profile body 4 are attached, which interlock and in the pump chamber 5 through a connection 13 that Suck the medium to be pumped from above and not through the bottom Eject the openings shown.
- the waves 3 and the profile body 4 are driven by electric motors 6, whereby for each shaft 3 a separate electric motor 6 is provided.
- the motors 6 are made using resolvers 8 electronically synchronized. In adverse operating conditions, if the electronic synchronization is not sufficient, first touch the gears 7 because they are one have less angular play than the rotors 4. Usually but do not touch the gears 7, so that lubrication of these gears can be dispensed with.
- rotors according to the invention are shown, in which the slope decreases from the top (inlet end) to the bottom (outlet end).
- the slope S 1 has a constant value over at least one turn.
- the range of constant slope S 3 advantageously extends over at least two turns of the rotors 4.
- the slope S 2 changes continuously from the value of S 1 to the value of S 3 .
Abstract
Description
- Fig 1.
- schematisch den Aufbau einer Verdrängermaschine, bei der die Erfindung verwendet werden kann; und
- Fig 2.
- erfindungsgemäße Profilkörper, die im Zusammenhang mit der Verdrängermaschine der Figur 1 verwendet werden können.
Claims (6)
- Verdrängermaschine für kompressible Medien, insbesondere trockenlaufende Vakuumpumpe, mit mindestens zwei Wellen (3) mit Rotoren (4), die als schraubenförmige Profilkörper (4) ausgebildet sind und deren Profile bei der Drehung zahnradartig ineinandergreifen und berührungsfrei zueinander laufen, wobei die Steigung der schraubenförmigen Profilkörper vom Einlaß zum Auslaß abnimmt, dadurch gekennzeichnet, daß die schraubenförmigen Profilkörper (4) zweitgängig ausgebildet sind und daß die Steigungen (S1, S3) am Einlaßende und Auslaßende der schraubenförmigen Profilkörper (4) konstant sind und dazwischen von der größeren Steigung (S1) am Einlaßende zur kleineren Steigung (S3) am Auslaßende die Steigung (S2) kontinuierlich abnimmt.
- Verdrängermaschine nach Anspruch 1, dadurch gekennzeichnet, daß die Steigung (S1, S3) am Einlaß- und Auslaßende über mindestens eine Windung konstant sind.
- Verdrängermaschine nach Anspruch 2, dadurch gekennzeichnet, daß die Steigung (S3) am Auslaßende über mindestens zwei Windungen konstant ist.
- Verdrängermaschine nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß die Wellen (3) jeweils durch eigene Elektromotoren (6) angetrieben werden, wobei die Winkelpositionen der Wellen (3) mit Resolvern (8) bestimmt werden, aufgrund von deren Signalen die Motoren (6) elektronisch synchronisiert werden, und wobei die Wellen (3) Zahnräder (7) aufweisen, die ineinandergreifen und deren Winkelspiel kleiner ist als dasjenige der Profilkörper (4).
- Verdrängermaschine nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß sie eine Differenzregelung für die Drehzahl der Motoren (6) aufweist.
- Verdrängermaschine nach den Ansprüchen 1 bis 5, dadurch gekennzeichnet, daß die Motoren (6) Drehstrommotoren mit permanent magnetischem Rotor sind.
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK99114031T DK1070848T3 (da) | 1999-07-19 | 1999-07-19 | Fortrængningsmaskine til kompressible medier |
EP99114031A EP1070848B1 (de) | 1999-07-19 | 1999-07-19 | Verdrängermaschine für kompressible Medien |
ES99114031T ES2219956T3 (es) | 1999-07-19 | 1999-07-19 | Maquina volumetrica para medios comprimibles. |
AT99114031T ATE264457T1 (de) | 1999-07-19 | 1999-07-19 | Verdrängermaschine für kompressible medien |
DE59909182T DE59909182D1 (de) | 1999-07-19 | 1999-07-19 | Verdrängermaschine für kompressible Medien |
NO20003590A NO323484B1 (no) | 1999-07-19 | 2000-07-13 | Fortrengningsmaskin for kompressible medier |
ZA200003568A ZA200003568B (en) | 1999-07-19 | 2000-07-17 | Displacement machine for compressible media. |
JP2000217626A JP2001055992A (ja) | 1999-07-19 | 2000-07-18 | 圧縮可能媒体用排出機 |
SG200003980A SG86422A1 (en) | 1999-07-19 | 2000-07-18 | Displacement machine for compressible media |
KR1020000041054A KR100573752B1 (ko) | 1999-07-19 | 2000-07-18 | 압축 매질용 용적식 기계 |
CA002314124A CA2314124C (en) | 1999-07-19 | 2000-07-18 | Displacement machine for compressible media |
US09/619,600 US6359411B1 (en) | 1999-07-19 | 2000-07-19 | Displacement machine for compressible media |
AU48703/00A AU775135B2 (en) | 1999-07-19 | 2000-07-19 | Displacement machine for compressible media |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99114031A EP1070848B1 (de) | 1999-07-19 | 1999-07-19 | Verdrängermaschine für kompressible Medien |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1070848A1 true EP1070848A1 (de) | 2001-01-24 |
EP1070848B1 EP1070848B1 (de) | 2004-04-14 |
Family
ID=8238616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99114031A Expired - Lifetime EP1070848B1 (de) | 1999-07-19 | 1999-07-19 | Verdrängermaschine für kompressible Medien |
Country Status (13)
Country | Link |
---|---|
US (1) | US6359411B1 (de) |
EP (1) | EP1070848B1 (de) |
JP (1) | JP2001055992A (de) |
KR (1) | KR100573752B1 (de) |
AT (1) | ATE264457T1 (de) |
AU (1) | AU775135B2 (de) |
CA (1) | CA2314124C (de) |
DE (1) | DE59909182D1 (de) |
DK (1) | DK1070848T3 (de) |
ES (1) | ES2219956T3 (de) |
NO (1) | NO323484B1 (de) |
SG (1) | SG86422A1 (de) |
ZA (1) | ZA200003568B (de) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6702558B2 (en) | 2000-07-25 | 2004-03-09 | Ateliers Busch Sa | Twin screw rotors and displacement machines containing the same |
DE102010019402A1 (de) * | 2010-05-04 | 2011-11-10 | Oerlikon Leybold Vacuum Gmbh | Schrauben-Vakuumpumpe |
CN102808771A (zh) * | 2012-08-14 | 2012-12-05 | 东北大学 | 等齿顶宽的单头变螺距螺杆转子 |
CN103486023A (zh) * | 2013-07-10 | 2014-01-01 | 重庆德衡科技有限公司 | 螺杆泵及螺杆 |
WO2014001089A1 (de) * | 2012-06-28 | 2014-01-03 | Sterling Industry Consult Gmbh | Schraubenpumpe |
WO2013175019A3 (fr) * | 2012-05-25 | 2014-06-12 | Ateliers Busch Sa | Machine volumétrique de type "à vis" améliorée |
EP2204532A3 (de) * | 2008-12-31 | 2014-10-08 | General Electric Company | Verdrängungsrotations-Gasturbine mit parallelen Schraubenrotoren |
DE202016005209U1 (de) * | 2016-08-30 | 2017-12-01 | Leybold Gmbh | Schraubenvakuumpumpe |
DE102016216279A1 (de) | 2016-08-30 | 2018-03-01 | Leybold Gmbh | Vakuumpumpen-Schraubenrotor |
DE202017005336U1 (de) * | 2017-10-17 | 2019-01-21 | Leybold Gmbh | Schraubenrotor |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004263629A (ja) | 2003-03-03 | 2004-09-24 | Tadahiro Omi | スクリュー真空ポンプ |
GB0405527D0 (en) * | 2004-03-12 | 2004-04-21 | Boc Group Plc | Vacuum pump |
JPWO2005124154A1 (ja) * | 2004-06-15 | 2008-04-10 | 株式会社豊田自動織機 | スクリュ式ポンプ及びねじ歯車 |
JP4839443B2 (ja) * | 2004-06-18 | 2011-12-21 | 国立大学法人東北大学 | スクリュー真空ポンプ |
JP4853168B2 (ja) * | 2006-08-10 | 2012-01-11 | 株式会社豊田自動織機 | スクリューポンプ |
JP4779868B2 (ja) | 2006-08-11 | 2011-09-28 | 株式会社豊田自動織機 | スクリューポンプ |
US20080193316A1 (en) * | 2007-02-08 | 2008-08-14 | Kabushiki Kaisha Toyota Jidoshokki | Roots pump |
RU2448273C2 (ru) * | 2009-08-03 | 2012-04-20 | Открытое акционерное общество "УРАЛЬСКИЙ ЭЛЕКТРОХИМИЧЕСКИЙ КОМБИНАТ" | Роторная винтовая машина |
KR101142113B1 (ko) * | 2009-10-21 | 2012-05-09 | 주식회사 코디박 | 모터 및 로터 회전축 일체형 스크루 로터 진공펌프 |
KR101138389B1 (ko) | 2009-10-21 | 2012-04-26 | 주식회사 코디박 | 모터 내장형 스크루 로터 타입 진공펌프 |
KR101150971B1 (ko) * | 2009-10-22 | 2012-06-01 | 주식회사 코디박 | 스크루 로터 타입 진공 펌프 |
US8764424B2 (en) | 2010-05-17 | 2014-07-01 | Tuthill Corporation | Screw pump with field refurbishment provisions |
CN105697373B (zh) * | 2014-11-25 | 2017-08-25 | 巫修海 | 一种螺杆真空泵的螺杆 |
CN106151031A (zh) * | 2016-09-30 | 2016-11-23 | 北京艾岗科技有限公司 | 一种无油螺杆空压机 |
DE202018000178U1 (de) * | 2018-01-12 | 2019-04-15 | Leybold Gmbh | Kompressor |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH246525A (de) * | 1942-05-21 | 1947-01-15 | Graaf George Alexander V D | Vakuumpumpe, welche mehrere ineinandergreifende Förderschrauben besitzt. |
FR1500160A (fr) * | 1966-07-29 | 1967-11-03 | Perfectionnements aux compresseurs et moteurs rotatifs | |
GB2165890A (en) * | 1984-10-24 | 1986-04-23 | Stothert & Pitt Plc | Postive displacement screw pumps |
DE19749572A1 (de) * | 1997-11-10 | 1999-05-12 | Peter Dipl Ing Frieden | Trockenlaufender Schraubenverdichter oder Vakuumpumpe |
DE19800825A1 (de) * | 1998-01-02 | 1999-07-08 | Schacht Friedrich | Trockenverdichtende Schraubenspindelpumpe |
Family Cites Families (13)
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GB165890A (en) | 1920-02-03 | 1921-06-03 | Frank Henry Trier | Improvements in tunnelling machines |
CH635403A5 (de) * | 1978-09-20 | 1983-03-31 | Edouard Klaey | Schraubenspindelmaschine. |
US4792295A (en) * | 1987-03-05 | 1988-12-20 | Joyce Sr Benjamin N | Variable volume rotary vane pump-motor units |
FR2647853A1 (fr) * | 1989-06-05 | 1990-12-07 | Cit Alcatel | Pompe primaire seche a deux etages |
DE69123898T3 (de) * | 1990-08-01 | 2004-08-05 | Matsushita Electric Industrial Co., Ltd., Kadoma | Drehanlage für flüssige Medien |
US5108275A (en) * | 1990-12-17 | 1992-04-28 | Sager William F | Rotary pump having helical gear teeth with a small angle of wrap |
DE69304102T3 (de) * | 1992-01-31 | 2004-06-03 | Matsushita Electric Industrial Co., Ltd., Kadoma | Gerät mit mehreren synchron rotierenden Wellen |
JP3569924B2 (ja) * | 1992-03-19 | 2004-09-29 | 松下電器産業株式会社 | 流体回転装置 |
US5374173A (en) * | 1992-09-04 | 1994-12-20 | Matsushita Electric Industrial Co., Ltd. | Fluid rotating apparatus with sealing arrangement |
DE4314418A1 (de) * | 1993-05-03 | 1994-11-10 | Leybold Ag | Reibungsvakuumpumpe mit unterschiedlich gestalteten Pumpenabschnitten |
DE4318707A1 (de) * | 1993-06-04 | 1994-12-08 | Sihi Gmbh & Co Kg | Verdrängermaschine mit elektronischer Motorsynchronisation |
JPH08100779A (ja) * | 1994-10-04 | 1996-04-16 | Matsushita Electric Ind Co Ltd | 真空ポンプ |
US5704250A (en) * | 1996-04-04 | 1998-01-06 | Western Atlas, Inc. | Ball screw drive with dynamically adjustable preload |
-
1999
- 1999-07-19 DE DE59909182T patent/DE59909182D1/de not_active Expired - Lifetime
- 1999-07-19 ES ES99114031T patent/ES2219956T3/es not_active Expired - Lifetime
- 1999-07-19 AT AT99114031T patent/ATE264457T1/de not_active IP Right Cessation
- 1999-07-19 EP EP99114031A patent/EP1070848B1/de not_active Expired - Lifetime
- 1999-07-19 DK DK99114031T patent/DK1070848T3/da active
-
2000
- 2000-07-13 NO NO20003590A patent/NO323484B1/no not_active IP Right Cessation
- 2000-07-17 ZA ZA200003568A patent/ZA200003568B/xx unknown
- 2000-07-18 KR KR1020000041054A patent/KR100573752B1/ko active IP Right Grant
- 2000-07-18 CA CA002314124A patent/CA2314124C/en not_active Expired - Fee Related
- 2000-07-18 SG SG200003980A patent/SG86422A1/en unknown
- 2000-07-18 JP JP2000217626A patent/JP2001055992A/ja active Pending
- 2000-07-19 US US09/619,600 patent/US6359411B1/en not_active Expired - Lifetime
- 2000-07-19 AU AU48703/00A patent/AU775135B2/en not_active Ceased
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH246525A (de) * | 1942-05-21 | 1947-01-15 | Graaf George Alexander V D | Vakuumpumpe, welche mehrere ineinandergreifende Förderschrauben besitzt. |
FR1500160A (fr) * | 1966-07-29 | 1967-11-03 | Perfectionnements aux compresseurs et moteurs rotatifs | |
GB2165890A (en) * | 1984-10-24 | 1986-04-23 | Stothert & Pitt Plc | Postive displacement screw pumps |
DE19749572A1 (de) * | 1997-11-10 | 1999-05-12 | Peter Dipl Ing Frieden | Trockenlaufender Schraubenverdichter oder Vakuumpumpe |
DE19800825A1 (de) * | 1998-01-02 | 1999-07-08 | Schacht Friedrich | Trockenverdichtende Schraubenspindelpumpe |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6702558B2 (en) | 2000-07-25 | 2004-03-09 | Ateliers Busch Sa | Twin screw rotors and displacement machines containing the same |
EP2204532A3 (de) * | 2008-12-31 | 2014-10-08 | General Electric Company | Verdrängungsrotations-Gasturbine mit parallelen Schraubenrotoren |
DE102010019402A1 (de) * | 2010-05-04 | 2011-11-10 | Oerlikon Leybold Vacuum Gmbh | Schrauben-Vakuumpumpe |
WO2013175019A3 (fr) * | 2012-05-25 | 2014-06-12 | Ateliers Busch Sa | Machine volumétrique de type "à vis" améliorée |
WO2014001089A1 (de) * | 2012-06-28 | 2014-01-03 | Sterling Industry Consult Gmbh | Schraubenpumpe |
CN102808771A (zh) * | 2012-08-14 | 2012-12-05 | 东北大学 | 等齿顶宽的单头变螺距螺杆转子 |
CN103486023A (zh) * | 2013-07-10 | 2014-01-01 | 重庆德衡科技有限公司 | 螺杆泵及螺杆 |
CN103486023B (zh) * | 2013-07-10 | 2015-10-28 | 重庆德衡科技有限公司 | 螺杆泵及螺杆 |
DE202016005209U1 (de) * | 2016-08-30 | 2017-12-01 | Leybold Gmbh | Schraubenvakuumpumpe |
DE102016216279A1 (de) | 2016-08-30 | 2018-03-01 | Leybold Gmbh | Vakuumpumpen-Schraubenrotor |
DE202017005336U1 (de) * | 2017-10-17 | 2019-01-21 | Leybold Gmbh | Schraubenrotor |
Also Published As
Publication number | Publication date |
---|---|
NO20003590D0 (no) | 2000-07-13 |
KR20010015358A (ko) | 2001-02-26 |
ZA200003568B (en) | 2001-02-07 |
SG86422A1 (en) | 2002-02-19 |
CA2314124A1 (en) | 2001-01-19 |
ES2219956T3 (es) | 2004-12-01 |
CA2314124C (en) | 2008-05-27 |
NO323484B1 (no) | 2007-05-21 |
US6359411B1 (en) | 2002-03-19 |
JP2001055992A (ja) | 2001-02-27 |
NO20003590L (no) | 2001-01-22 |
AU775135B2 (en) | 2004-07-15 |
DE59909182D1 (de) | 2004-05-19 |
EP1070848B1 (de) | 2004-04-14 |
ATE264457T1 (de) | 2004-04-15 |
DK1070848T3 (da) | 2004-08-09 |
KR100573752B1 (ko) | 2006-04-24 |
AU4870300A (en) | 2001-01-25 |
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