EP1136657A2 - Vorrichtung zur Verstellung einer nockenwelle - Google Patents
Vorrichtung zur Verstellung einer nockenwelle Download PDFInfo
- Publication number
- EP1136657A2 EP1136657A2 EP01890070A EP01890070A EP1136657A2 EP 1136657 A2 EP1136657 A2 EP 1136657A2 EP 01890070 A EP01890070 A EP 01890070A EP 01890070 A EP01890070 A EP 01890070A EP 1136657 A2 EP1136657 A2 EP 1136657A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- gear
- planet
- camshaft
- planet gear
- electric motor
- 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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/352—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using bevel or epicyclic gear
Definitions
- the present invention relates to a device for adjusting a camshaft an internal combustion engine with at least one Electric motor that opposes the adjustment of the camshaft via a planetary gear causes a drive wheel, wherein the planetary gear a first ring gear and has a second ring gear, and at least one first planet gear, which is in engagement with the first ring gear and at least one second planet gear, that is in engagement with the second ring gear and that is fixed with the first Planet gear is connected.
- EP-A 0 903 471 describes a device for adjusting the camshaft Internal combustion engine known, which comprises a planetary gear.
- the gear ratio the planetary gear is limited in this device, so a relatively large electric motor has to be used to apply the required adjustment torque.
- the backlash has an effect of the planetary gear adverse to the operating noise and Life of the device.
- DE 41 33 408 A shows a camshaft adjusting device with a planetary gear, which has two firmly connected ring gears, one have slightly different diameters.
- Each of the ring gears stands engages with a planet gear, one of the planet gears with the camshaft and another is connected to the drive wheel.
- the two ring gears are eccentric to the axis of the camshaft and the drive wheels in one Mounted sleeve, which in turn is rotatably mounted about the camshaft axis. If the sleeve rotates at the camshaft speed, there is no adjustment in relation to the drive wheel. By braking or accelerating the The sleeve can have a corresponding relative movement of the camshaft the drive wheel can be effected. With such a device, it is difficult to to master the occurring mass forces and it becomes the gears comparatively heavily used.
- EP 0 143 368 A shows a shaft coupling system that has a relative adjustment between a drive shaft and a camshaft.
- Two planetary gears are connected in series by the planet carrier are interconnected. The relative adjustment can thereby be accomplished that the two ring gears are concentrically arranged be twisted against each other. With this device, however, are also stationary Operating the planet gears in motion, causing corresponding losses and results in noise.
- a gearbox as in GB 649 221 A is disclosed.
- the object of the present invention is to avoid these disadvantages and to develop a device of the type described above so that a safe Adjustment is achieved with low losses, with the required torque should be as low as possible.
- these tasks are solved in that several planetary gear sets are provided, each consisting of a first planet gear and a second planet gear that the drive gear with the first ring gear fixed is connected that the camshaft is firmly connected to the second ring gear, that a first gear ratio between the first planet gear and the first ring gear and a second gear ratio between the second planet gear the second ring gear slightly different from each other and that the first planet gear and the second planet gear are on one Planet carriers are mounted, which are concentric to the axis of the camshaft and the drive wheel is mounted.
- An essential feature of the present invention is that in stationary operation, that is, when an adjustment of the Camshaft takes place, there is no rolling of the planet gears in the ring gears.
- the electric motor can basically as a moving Electric motor can be designed, as described in EP 0 903 471 A. or as a fixed electric motor, as in the DE 41 10 195 A is shown.
- the housing of the electric motor firmly with the camshaft or the drive shaft is connected and that the electric motor is supplied with power via slip rings becomes.
- a standstill of the electric motor means that no adjustment of the camshaft relative to the drive wheel causes becomes. Stationary operation is thus possible in a simple manner.
- the stator of the electric motor is fixed to the housing.
- the Electric motor run at a speed that is proportional to the camshaft speed is. An adjustment is made by acceleration or deceleration of the electric motor.
- the backlash can be reduced or completely in a simple way be avoided that the planetary sets are arranged movably in the radial direction are. In this way, the noise level can be further reduced.
- the planetary gear sets are designed to be pressed against the ring gears by a spring.
- a particularly advantageous design variant of the invention is characterized in that the housing of the electric motor on the planet carrier is attached.
- the electric motor runs as a whole around the camshaft axis, preferably the axes of the planet gears coincide with the axis of the electric motor.
- the invention provides that the electric motor carries a pinion that with the first planet gear or the second planet gear is engaged.
- a fixed electric motor can be used favorably can be controlled without the use of slip rings.
- first planet gear and the second planet gear in one piece and with the same Teeth are formed and that at least one ring gear a profile shift having.
- This allows the first planet gear and the second planet gear be practically indistinguishable as a single gear.
- the pinion of the electric motor can engage in both planet gears, whereby a particularly favorable strength is achieved training.
- the different profile displacement of the ring gears results in a different one virtual roll diameter. It is particularly advantageous in this Relationship when the number of teeth of the first planet gear and the second Planetary gear are the same and that the number of teeth of the first ring gear and the second ring gear are slightly different, the difference preferably makes up exactly as many teeth as planetary sets provided are.
- the Ring gears have 100 or 102 teeth, whereby the gear ratios Make little difference between the planet gear and the first or second ring gear. In this way, the gear ratio between the electric motor and adjustment movement can be made very large.
- Variant c is shown in the toothing diagram of FIG. 2. It is can be seen that the electric motor 8 is attached to the planet carrier and the planet gears 5, 6 drives directly. Depending on the existing force relationships can have between three and seven electric motors 8 and related planetary gear sets 12 may be provided, which are constructed from planet gears 5, 6. Around To minimize the backlash, 7 springs 9 can be provided in the planet carrier be that press the planetary gear sets 12 onto the ring gears 3, 4. The supply the electric motors 8 takes place in this solution via not shown Slip rings.
- a stationary one drives Electric motor 8 directly on the planet carrier 7.
- a camshaft adjustment is done by accelerating or decelerating the movement of the Electric motor 8 opposite the camshaft 1.
- the electric motor 8 drives both can be fixed, as well as connected to the camshaft 1 can be via a pinion 11, the second planet gear 6.
- the planet carrier is not shown in this figure to simplify the illustration. Because the pinion 11 has a small diameter, becomes a large transmission ratio reached.
- the present invention makes it possible to adjust a camshaft in Relative to a drive wheel in a simple manner with relatively low adjustment torques to reach.
- the friction losses are low and the noise level limited.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Retarders (AREA)
Abstract
Description
- Fig. 1
- eine allgemeine Darstellung der wesentlichen Teile einer erfindungsgemäßen Vorrichtung, die
- Fig. 2 und 3
- Verzahnungsdiagramme unterschiedlicher Ausführungsvarianten der Erfindung und die
- Fig. 4
- eine weitere Ausführungsvariante der Erfindung im Längsschnitt.
Claims (10)
- Vorrichtung zur Verstellung einer Nockenwelle (1) einer Brennkraftmaschine mit innerer Verbrennung mit mindestens einem Elektromotor (8), der über ein Planetengetriebe die Verstellung der Nockenwelle (1) gegenüber einem Antriebsrad (2) bewirkt, wobei das Planetengetriebe ein erstes Hohlrad (3) und ein zweites Hohlrad (4) aufweist, sowie mindestens ein erstes Planetenrad (5), das mit dem ersten Hohlrad (3) in Eingriff steht und mindestens ein zweites Planetenrad (6), das mit dem zweiten Hohlrad in Eingriff steht und das fest mit dem ersten Planetenrad (5) verbunden ist, dadurch gekennzeichnet, dass mehrere Planetensätze (12) vorgesehen sind, die jeweils aus einem ersten Planetenrad (5) und einem zweiten Planetenrad (6) bestehen, dass das Antriebsrad (2) mit dem ersten Hohlrad (3) fest verbunden ist, dass die Nockenwelle (1) mit dem zweiten Hohlrad (4) fest verbunden ist, dass ein erstes Übersetzungsverhältnis zwischen dem ersten Planetenrad (5) und dem ersten Hohlrad (3) und ein zweites Übersetzungsverhältnis zwischen dem zweiten Planetenrad (6) dem zweiten Hohlrad (4) - geringfügig unterschiedlich voneinander sind und dass das erste Planetenrad (5) und das zweite Planetenrad (6) auf einem Planetenträger (7) gelagert sind, der konzentrisch zur Achse der Nockenwelle (1) und des Antriebsrades (2) angeordnet ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Gehäuse des Elektromotors (8) fest mit der Nockenwelle (1) oder der Antriebswelle verbunden ist und dass der Elektromotor (8) über Schleifringe mit Strom versorgt wird.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Stator des Elektromotors (8) gehäusefest angeordnet ist.
- Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Planetensätze (12) in Radialrichtung beweglich angeordnet sind.
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Planetensätze (12) durch Federn (9) an die Hohlräder (3, 4) andrückbar ausgebildet sind.
- Vorrichtung nach einem der Ansprüche 4 oder 5, dadurch gekennzeichnet, dass das Gehäuse des Elektromotors (8) am Planetenträger (7) befestigt ist.
- Vorrichtung nach einem der Ansprüche 4 oder 5, dadurch gekennzeichnet, dass der Elektromotor (8) ein Ritzel (11) trägt, das mit dem ersten Planetenrad (5) oder dem zweiten Planetenrad (6) in Eingriff steht.
- Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das erste Planetenrad (5) und das zweite Planetenrad (6) einstückig und mit der gleichen Verzahnung ausgebildet sind und dass mindestens ein Hohlrad (3, 4) eine Profilverschiebung aufweist.
- Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass die Zähnezahlen des ersten Planetenrades (5) und des zweiten Planetenrades (6) gleich sind und dass die Zähnezahlen des ersten Hohlrades (3) und des zweiten Hohlrades (4) geringfügig unterschiedlich sind, wobei der Unterschied vorzugsweise genau so viele Zähne ausmacht wie Planetensätze (12) vorgesehen sind.
- Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass zwischen drei und sieben Planetensätze (12) vorgesehen sind, die jeweils aus einem ersten Planetenrad (5) und einem zweiten Planetenrad (6) bestehen, die einen geringfügig unterschiedlichen Durchmesser aufweisen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0038900A AT409030B (de) | 2000-03-09 | 2000-03-09 | Vorrichtung zur verstellung einer nockenwelle |
AT3892000 | 2000-03-09 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1136657A2 true EP1136657A2 (de) | 2001-09-26 |
EP1136657A3 EP1136657A3 (de) | 2002-04-10 |
EP1136657B1 EP1136657B1 (de) | 2003-09-03 |
Family
ID=3673294
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01890070A Expired - Lifetime EP1136657B1 (de) | 2000-03-09 | 2001-03-08 | Vorrichtung zur Verstellung einer nockenwelle |
Country Status (5)
Country | Link |
---|---|
US (1) | US6543399B2 (de) |
EP (1) | EP1136657B1 (de) |
JP (1) | JP2001289012A (de) |
AT (1) | AT409030B (de) |
DE (1) | DE50100568D1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10224446A1 (de) * | 2002-06-01 | 2003-12-11 | Daimler Chrysler Ag | Vorrichtung zur relativen Winkelverstellung zwischen zwei rotierenden Elementen |
DE10248355A1 (de) * | 2002-10-17 | 2004-04-29 | Ina-Schaeffler Kg | Nockenwellenversteller mit elektrischem Antrieb |
WO2006018081A1 (de) * | 2004-08-10 | 2006-02-23 | Schaeffler Kg | Nockenwellentrieb mit einem nockenwellenversteller |
WO2008125569A1 (de) * | 2007-04-13 | 2008-10-23 | Mahle International Gmbh | Verstellbare nockenwelle mit einem planetengetriebe |
WO2014029524A1 (de) * | 2012-08-21 | 2014-02-27 | Pierburg Gmbh | Vorrichtung zur phasenverschiebung des drehwinkels eines antriebsteils zu einem abtriebsteil |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003052241A1 (fr) * | 2001-12-19 | 2003-06-26 | Nittan Valve Co., Ltd. | Dispositif de distribution a programme variable de type a engrenage planetaire |
US6622677B2 (en) | 2002-02-22 | 2003-09-23 | Borgwarner Inc. | Worm gear driven variable cam phaser |
DE10207760B4 (de) * | 2002-02-23 | 2019-10-31 | Schaeffler Technologies AG & Co. KG | Vorrichtung zum lösbaren Verbinden und Verstellen zweier zueinander drehwinkelverstellbarer Wellen |
DE10220687A1 (de) * | 2002-05-10 | 2003-11-20 | Ina Schaeffler Kg | Nockenwellenversteller mit elektrischem Antrieb |
DE10397025B3 (de) | 2002-10-25 | 2021-10-21 | Denso Corporation | Variable Ventilzeitabstimmungssteuerungsvorrichtung einer Brennkraftmaschine |
JP2005016695A (ja) * | 2003-06-30 | 2005-01-20 | Hirokazu Tanaka | 減速装置 |
DE10352361B4 (de) * | 2003-11-10 | 2020-08-27 | Schaeffler Technologies AG & Co. KG | Nockenwellenversteller mit elektrischem Antrieb |
DE102004038681B4 (de) | 2004-08-10 | 2017-06-01 | Schaeffler Technologies AG & Co. KG | Elektromotorischer Nockenwellenversteller |
DE102004043548B4 (de) * | 2004-09-09 | 2013-04-18 | Daimler Ag | Vorrichtung zur Winkelverstellung zwischen zwei rotierenden, antriebsverbundenen Elementen |
DE102005018956A1 (de) * | 2005-04-23 | 2006-11-23 | Schaeffler Kg | Vorrichtung zur Nockenwellenverstellung einer Brennkraftmaschine |
JP4419092B2 (ja) * | 2005-09-05 | 2010-02-24 | 株式会社デンソー | バルブタイミング調整装置 |
JP4390078B2 (ja) * | 2005-09-05 | 2009-12-24 | 株式会社デンソー | バルブタイミング調整装置 |
JP4710786B2 (ja) * | 2006-10-06 | 2011-06-29 | 株式会社デンソー | バルブタイミング調整装置 |
US7475661B2 (en) * | 2006-10-17 | 2009-01-13 | Delphi Technologies, Inc. | Camshaft phaser having a differential bevel gear system |
JP4900286B2 (ja) * | 2008-03-04 | 2012-03-21 | 株式会社デンソー | バルブタイミング調整装置 |
DE102008043337A1 (de) * | 2008-10-30 | 2010-05-06 | Zf Friedrichshafen Ag | Anordnung zur Montage und Befestigung eines Planetengetriebes an einer Nockenwelle und Verfahren zur Montage des Planetengetriebes |
JP5538053B2 (ja) * | 2010-04-28 | 2014-07-02 | 日立オートモティブシステムズ株式会社 | 内燃機関の可変動弁装置 |
JP5206807B2 (ja) * | 2011-01-26 | 2013-06-12 | 株式会社デンソー | バルブタイミング調整装置 |
JP2015537158A (ja) * | 2012-12-10 | 2015-12-24 | ボーグワーナー インコーポレーテッド | スプリットリングギヤ遊星カム位相器 |
CN107075983B (zh) * | 2014-09-17 | 2018-12-04 | 博格华纳公司 | 具有行星齿轮组的发动机可变凸轮轴正时相位器 |
JP2016211541A (ja) | 2015-05-05 | 2016-12-15 | ボーグワーナー インコーポレーテッド | eフェイザー用の軸外負荷バックラッシュ防止遊星駆動 |
JP2016223439A (ja) | 2015-05-29 | 2016-12-28 | ボーグワーナー インコーポレーテッド | ばね荷重遊星ギアアセンブリ |
CN107816528B (zh) * | 2016-09-13 | 2022-05-24 | 博格华纳公司 | 顺应性行星齿轮架 |
US20180265147A1 (en) * | 2017-03-15 | 2018-09-20 | Gabor Budahazi | Bi-fold trailer system and method |
US10408096B2 (en) | 2017-03-16 | 2019-09-10 | Borgwarner Inc. | Engine variable camshaft timing phaser with planetary gear set |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB649221A (en) | 1948-10-25 | 1951-01-24 | Austin Motor Co Ltd | Means for timing the fuel injection period in diesel engines |
EP0143368A2 (de) | 1983-11-26 | 1985-06-05 | M.A.N. Technologie GmbH | Wellenkopplungssystem |
DE4110195A1 (de) | 1991-03-28 | 1992-10-01 | Schaeffler Waelzlager Kg | Verstellvorrichtung fuer eine nockenwelle |
DE4133408A1 (de) | 1991-10-09 | 1993-04-15 | Schaeffler Waelzlager Kg | Vorrichtung zum relativverstellen einer nockenwelle zu einem sie antreibenden antriebsrad |
EP0903471A1 (de) | 1997-09-19 | 1999-03-24 | TCG UNITECH Aktiengesellschaft | Vorrichtung zur verstellung der nockenwelle einer brennkraftmaschine mit innerer verbrennung |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5452218A (en) * | 1977-09-30 | 1979-04-24 | Toyota Central Res & Dev Lab Inc | Internal-combustion engine |
DE3536919A1 (de) * | 1985-10-17 | 1987-04-23 | Bayerische Motoren Werke Ag | Vorrichtung zur aenderung der relativen drehlage eines getriebenen zu einem treibenden maschinenteil, insbes. einer steuerwelle gegenueber einer kurbelwelle einer brennkraftmaschine |
DE3830382C1 (de) * | 1988-09-07 | 1990-01-18 | Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De | |
US5020487A (en) * | 1989-04-26 | 1991-06-04 | Volkswagen | Internal combustion engine with load-responsive valve control for combustion chamber scavenging |
GB8910105D0 (en) * | 1989-05-03 | 1989-06-21 | Jaguar Cars | Camshaft drive mechanisms |
JPH04241709A (ja) * | 1991-01-11 | 1992-08-28 | Toyota Motor Corp | 軸間位相変換装置 |
DE4441946A1 (de) * | 1994-11-25 | 1996-05-30 | Hansbernd Berzheim | Vorrichtung zur beliebig großen stufenlosen Phasenverschiebung einer Nockenwelle eines Hubkolben-Motors |
KR100203883B1 (ko) * | 1996-08-30 | 1999-06-15 | 정몽규 | 자동차의 가변 타이밍 벨트 시스템 |
US5680837A (en) * | 1996-09-17 | 1997-10-28 | General Motors Corporation | Planetary cam phaser with worm electric actuator |
DE19702670A1 (de) * | 1997-01-25 | 1998-03-26 | Daimler Benz Ag | Variable Ventilsteuerung für Brennkraftmaschinen |
EP0918142B1 (de) * | 1997-11-21 | 2003-10-15 | Mazda Motor Corporation | Vorrichtung zur Steuerung der Drehphase |
-
2000
- 2000-03-09 AT AT0038900A patent/AT409030B/de not_active IP Right Cessation
-
2001
- 2001-03-08 JP JP2001064161A patent/JP2001289012A/ja active Pending
- 2001-03-08 EP EP01890070A patent/EP1136657B1/de not_active Expired - Lifetime
- 2001-03-08 DE DE50100568T patent/DE50100568D1/de not_active Expired - Lifetime
- 2001-03-09 US US09/801,866 patent/US6543399B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB649221A (en) | 1948-10-25 | 1951-01-24 | Austin Motor Co Ltd | Means for timing the fuel injection period in diesel engines |
EP0143368A2 (de) | 1983-11-26 | 1985-06-05 | M.A.N. Technologie GmbH | Wellenkopplungssystem |
DE4110195A1 (de) | 1991-03-28 | 1992-10-01 | Schaeffler Waelzlager Kg | Verstellvorrichtung fuer eine nockenwelle |
DE4133408A1 (de) | 1991-10-09 | 1993-04-15 | Schaeffler Waelzlager Kg | Vorrichtung zum relativverstellen einer nockenwelle zu einem sie antreibenden antriebsrad |
EP0903471A1 (de) | 1997-09-19 | 1999-03-24 | TCG UNITECH Aktiengesellschaft | Vorrichtung zur verstellung der nockenwelle einer brennkraftmaschine mit innerer verbrennung |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10224446A1 (de) * | 2002-06-01 | 2003-12-11 | Daimler Chrysler Ag | Vorrichtung zur relativen Winkelverstellung zwischen zwei rotierenden Elementen |
DE10248355A1 (de) * | 2002-10-17 | 2004-04-29 | Ina-Schaeffler Kg | Nockenwellenversteller mit elektrischem Antrieb |
US6981478B2 (en) | 2002-10-17 | 2006-01-03 | Ina-Schaeffler Kg | Electrically driven camshaft adjuster |
WO2006018081A1 (de) * | 2004-08-10 | 2006-02-23 | Schaeffler Kg | Nockenwellentrieb mit einem nockenwellenversteller |
WO2008125569A1 (de) * | 2007-04-13 | 2008-10-23 | Mahle International Gmbh | Verstellbare nockenwelle mit einem planetengetriebe |
US8327815B2 (en) | 2007-04-13 | 2012-12-11 | Mahle International Gmbh | Adjustable camshaft with a planetary gear |
WO2014029524A1 (de) * | 2012-08-21 | 2014-02-27 | Pierburg Gmbh | Vorrichtung zur phasenverschiebung des drehwinkels eines antriebsteils zu einem abtriebsteil |
Also Published As
Publication number | Publication date |
---|---|
ATA3892000A (de) | 2001-09-15 |
US6543399B2 (en) | 2003-04-08 |
US20010020460A1 (en) | 2001-09-13 |
EP1136657B1 (de) | 2003-09-03 |
JP2001289012A (ja) | 2001-10-19 |
EP1136657A3 (de) | 2002-04-10 |
DE50100568D1 (de) | 2003-10-09 |
AT409030B (de) | 2002-05-27 |
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