EP1448873A1 - Machine volumetrique rotative - Google Patents
Machine volumetrique rotativeInfo
- Publication number
- EP1448873A1 EP1448873A1 EP02791906A EP02791906A EP1448873A1 EP 1448873 A1 EP1448873 A1 EP 1448873A1 EP 02791906 A EP02791906 A EP 02791906A EP 02791906 A EP02791906 A EP 02791906A EP 1448873 A1 EP1448873 A1 EP 1448873A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- stator
- machine according
- stops
- faces
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/30—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F01C1/34—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members
- F01C1/356—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
- F01C1/3566—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along more than one line or surface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/30—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F01C1/40—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and having a hinged member
- F01C1/46—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and having a hinged member with vanes hinged to the outer member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C11/00—Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type
- F01C11/002—Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type of similar working principle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C19/00—Sealing arrangements in rotary-piston machines or engines
-
- 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
- F04C2230/00—Manufacture
- F04C2230/60—Assembly methods
- F04C2230/602—Gap; Clearance
Definitions
- the present invention describes a rotary volumetric machine which does not have segmentation, the components of which participate in the creation of the variation in volumes, either with or without variation in pressure, are not subjected to any friction, the working volume being able to be free any form of lubrication, sealing being obtained by controlled pressure drop, while a motor torque can be directly generated.
- rotary volumetric machines of the type comprising a stator in which a chamber of suitable shape is fitted, a rotor secured to a shaft being housed in said chamber while movable elements such as pallets provide variations in volumes, these machines can roughly be divided into families distributed as follows:
- document GB-A-2254888 discloses a rotary piston pump or motor in which a flap can be moved between a raised position and a deployed position in the working cylinder.
- the flap comes to rest on an element of the rotor to produce the separation in two zones of the volume of the working cylinder.
- the contacting surfaces must be lubricated, which does not allow this machine to run dry at high temperatures.
- the machine which is the subject of the present application makes it possible to remedy one or more of the above-mentioned drawbacks.
- the present invention relates to a rotary volumetric machine comprising a stator in which a cylindrical chamber is fitted, a rotor housed in the cylindrical chamber and integral with a shaft, pallets formed on the rotor, and stops movable by actuation means. Between :
- the rotor comprises a disc, two concentric shoulders disposed on either side of said disc and two fixed vanes arranged diametrically opposite on either side of said disc each against a face of said disc and joined at the periphery a shoulder so as to obtain a balanced assembly in rotation; - In the deployed position in the volume of the cylindrical chamber, the stops are positioned near, but without contact, the shoulders.
- the dimensions of the faces of the rotor associated with the faces of the stator, the dimensions of the faces of the stops associated with the faces of the rotor and the stator, the clearances between the faces of the rotor and the faces of the associated stator, the clearances between the faces of the stops and the faces of the associated rotor and stator, the arithmetic roughness of all the associated surfaces, are defined such that they generate turbulence in the said clearances making it possible to obtain a seal by controlled pressure drops so as to have no friction no need for lubrication in these places;
- the rotor is positioned axially on the one hand between the stator covers integral with the stator and on the other hand between the bearings using spacers whose length is defined in the chain of dimensions, so that the rotor can rotate without coming into contact with said covers;
- the means for actuating the movable stops are arranged at a distance from the cylindrical chamber;
- the stops are carried by an axis disposed at a distance from said cylindrical chamber, they are tiltable under the action of the actuating means, so that the bearing pressure is carried by said axis, the outer side preferably being that of high pressures and the lateral side that of low pressures, the articulation of said stopper around said axis can thus be lubricated independently without influence inside said cylindrical chamber;
- each tilting stop is controlled by a hydraulic or pneumatic jack articulated in the stator in order to be able to follow the curve of the arc of a circle defined by the angular displacement of its point of attachment on said tilting stop, so as to limit the number of friction points;
- each tilting stop is controlled by at least one electric motor controlling a worm screw actuating a sector integral with each of said tilting stops, to keep only a limited number of friction points;
- the arithmetic roughness is obtained using microgrooves with rough sides, the said microgrooves being arranged on the one hand perpendicular to the direction of the leaks and on the other hand parallel to each other;
- the operating clearance is of the order of 0.02 mm and the arithmetic roughness is of the order of 0.2 mm;
- the invention relates to a pump, characterized in that it comprises at least one machine according to the invention.
- the invention also relates to a compressor, characterized in that it comprises at least one machine according to the invention.
- the invention finally relates to a hydraulic, pneumatic or thermal external combustion engine, characterized in that it comprises at least one machine according to the invention.
- the surface of a machined part is always more or less rough, which in certain cases requires running in between two elements operating in relation to each other, this roughness can be measured mechanically and then be expressed in microns, it is the arithmetic roughness, and hydraulically, in the latter case it is assigned a pressure drop coefficient;
- the turbulence when the operating clearance amounts to 0.02 mm and the arithmetic roughness to 0.2 mm, the turbulence generates pressure losses which, depending on the upstream pressures, can prove to be sufficient to obtain the required seal.
- Figure 1 Isometric perspective view on the rotor, the two base stops and the cylindrical chamber represented by broken lines.
- Figure 2 Axial section of the basic machine in which the scales X and Y are not proportional so as not to have to turn the sheet during a reading.
- Figure 3 View in axial section of the basic machine, the rotor being positioned at 235 ° in the positive direction and the front stop being in the extended position.
- Figure 4 - View in axial section of the basic machine, the rotor being positioned at 270 ° in the positive direction and the front stop being in the retracted position.
- FIG. 5 View in axial section of the basic machine, the rotor being positioned at 325 ° in the positive direction and the front stop being in the extended position, the volume ratio is represented by hatching.
- Figure 6 View in axial section of the basic machine, the rotor being positioned at 235 ° and 325 ° in the positive direction and the front stop in the extended position to express the useful rotation angle and the dead time angle .
- Figure 7 View in axial section of a rotor variant.
- Figure 8 View in axial section of the machine, the rotor being positioned at 250 ° in the positive direction and the hinged stop in the extended position.
- Figure 9 View in axial section of the machine, the rotor being positioned at 305 ° in the positive direction and the hinged stop in the retracted position.
- Figure 10 View in axial section of the machine, the rotor being positioned at 350 ° in the positive direction and the hinged stop in the extended position.
- Figures 11 and 12 Views in axial section of the machine.
- Each articulated stop is controlled by a hydraulic or pneumatic cylinder.
- Figures 13 and 14 Views in axial section of the machine.
- Each articulated stop is controlled by at least one electric motor controlling the articulated stop using a worm screw and a toothed sector.
- Figure 15 View in microscopic section of two components opposite.
- Figure 16 Cross-section view of two facing components in which microgrooves have been machined.
- Figure 17 Diagram of leaks in a pump or compressor.
- Figure 18 Diagram of leaks in a pneumatic or hydraulic or internal combustion engine.
- Figure 19 Diagram of a rotor made up of assembled elements, each rotor being thus closed on the three sides not concerned by the location of its stop.
- Figure 20 Representation of the perpendicular position of the microgrooves in the direction of the leaks.
- the rotor consists of a disc (1), two concentric shoulders (4 and 8) arranged on either side of said disc and two fixed vanes (3 and 7) arranged diametrically opposite manner on either side of said disc each against a face of said disc and contiguous to the periphery of said shoulders, so as to obtain a balanced rotation assembly, said rotor being machined in one piece or produced using assembled components, the said rotor being housed in a cylindrical chamber (2) arranged in a stator, the stops (5 and 6) are housed in the stator, mobile and actuated by mechanical actuation means or hydraulic or pneumatic or electric or by a combination of the said means arranged at a distance from the said cylindrical chamber, so that the working volume is free from any form of lubrication and can operate dry and at high temperature.
- said stops being positioned very close to said shoulders during the working phase, so as to generate volume variations between said blades or vanes and said stops and returned to said stator, to allow the passage of said blades or vanes from one side to the other of said stops.
- the volume generated by revolution of the pallets (3, 7) or torus is not necessarily of square or rectangular section as shown. In particular, a circular section is possible.
- the organs of this device are adaptable according to the cross section of the torus.
- the rotor is integral with a shaft (15) and positioned axially on the one hand between the stator covers (12 and 13) integral with the stator (9) and on the other hand between the bearings ( 10 and 16) using spacers (11 and 14) whose length is defined in the chain of dimensions, so that the rotor can rotate without coming into contact with said covers.
- the bearings are the only points requiring lubrication.
- the dimensions of the faces of the rotor associated with the faces of the stator, the dimensions of the faces of the stops associated with the faces of the rotor and of the stator, the clearances between the faces of the rotor and the associated faces of the stator, the clearances between the faces stops and the faces of the associated rotor and stator, the arithmetic roughness of all the associated surfaces, are defined such that they generate turbulence in the so-called clearances making it possible to obtain a tightness by controlled pressure drops so that n have no friction or need lubrication at these places there, for example, when the operating clearance is 0.02 mm (39) and the arithmetic roughness at 0.2 mm (40 and 41), the turbulence generates pressure losses which, depending on the upstream pressures, may prove to be sufficient to obtain the required seal; -
- the edges which define the periphery of said different faces are left alive or are only slightly softened, as is customary in the workshops so as not to be injured, to disturb the passage
- the rotor is positioned at 235 ° in the positive direction and the front stop is in the extended position.
- the thickness (17) of . the stop (5, 6) is one of the characteristics that define the seal.
- the conduits (18 and 19) serve as inlet or outlet depending on the direction of rotation.
- the volume ratio is represented by hatching: the volume (20) is much larger than volume (21), which is due to the fact that there is only one pallet per shoulder.
- Figure 7 which is an axial sectional view of a variant of the rotor, the crown of the shoulder is of reduced outer diameter while the sides of the pallet are directed towards the axis of the rotor.
- the rotor is positioned at 250 ° in the positive direction and the articulated stop (25) is in the extended position.
- These stops (25) are carried by an axis (26) disposed at a distance from said cylindrical chamber (2) so that they can be controlled by mechanical or hydraulic or pneumatic or electrical means or by a combination of said means arranged at a distance from said cylindrical chamber, so that the working volume is free from any form of lubrication and can operate dry and at high temperature, the articulation of said stopper around said axis can thus be lubricated independently without influence on the interior of said cylindrical chamber.
- the pipe (24) is rather intended for convey high pressures, while the pipe (27) is rather intended to convey low pressures.
- the angle (28) of an arc defining the width of the sealing area between a shoulder and a tilting stop is comparable to that bearing the reference (17). Said axis can also participate in the positioning of the covers relative to the stator.
- each articulated stop (25) is controlled by a hydraulic or pneumatic jack (34) articulated in the stator (9) in order to be able to follow the curve of the arc of a circle defined by the angular displacement of its fixing point (33) on said tilting stop (25), so as to limit the number of friction points.
- the jack (34) and the stop (25) are returned to allow the passage of the pallet (3, 7).
- the number of points to be lubricated is three, so, counting the two so-called bearings, it is five, all located at a distance from the working volume.
- each tilting stop is controlled by at least one electric motor (35, 38) controlling a worm (36) actuating a sector (37) integral with each of said tilting stops (25).
- the stop (25) is exit. The forces are balanced when two electric motors are used.
- the number of points to be lubricated is two. Including the two so-called bearings, it rises to four, all located at a distance from the working volume.
- Figure 14 which is an axial sectional view of the machine, the tilting stop (25) is retracted.
- the operating clearances (39) are defined such that the characteristics of shapes and dimensions can be measured in a conventional manner while the roughness of the facing surfaces (40 and 41) are defined such that the turbulence generated causes the required seal, the hydraulic diameters also being measured here in the conventional manner.
- this machine can in addition be characterized: - in that the arithmetic roughness is obtained using microgrooves with rough sides (FIG. 16), said microgrooves being arranged with on the one hand perpendicular to the direction of the leaks and on the other hand parallel to each other,
- This machine lends itself to the realization of groups formed by two or more dice known as common tree machines, possibly of different dimensions.
- one of the covers (12 or 13) can be replaced by a partition separating the different working volumes, the number of partitions being defined by the number of working volumes.
- a group is formed by two or more of said machines with different displacements to operate as a stage compressor
- a group is formed by two machines with different displacements, one to operate as a compressor and the other as a pressure reducer in an assembly forming an external combustion engine. In this case, provide a separate combustion chamber and at least one heat exchanger, not counting the essential accessories.
- the two pallets of a machine of the invention can have different dimensions in order to generate two tori of different volumes.
- FIG. 17 illustrates the leaks observed at the level of the vane (3, 7) in the case of an application to a pump or a compressor: the suction pressure (42) is lower than atmospheric pressure, there is therefore depression.
- the pressure (46) is higher than atmospheric pressure either because it is necessary to overcome friction, or because it is desired to obtain a pressure on this side of the pallet.
- the tolerated leaks will compensate for the depression (42).
- FIG. 18 illustrates the leaks observed at the level of the pallet (3, 7) in the case of an application to a hydraulic or pneumatic motor: the pressure (51) is greater than atmospheric pressure because it is desired to generate a engine couple.
- the pressure (47) is higher than atmospheric pressure because it is necessary to overcome the friction due to the backflow. Leaks will be fully or partially balanced on both sides of the pallets.
- the parts of the rotor and / or the stator (9) in relative movement can be made (or covered) with a self-lubricating material to withstand accidental friction (for example in the presence of impurities or according to the nature of the fluid present in the volume of the cylindrical chamber (2)).
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Rotary Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Centrifugal Separators (AREA)
- Hydraulic Motors (AREA)
- Reciprocating Pumps (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0115468 | 2001-11-30 | ||
FR0115468A FR2833048B1 (fr) | 2001-11-30 | 2001-11-30 | Machine volumetrique rotative fonctionnant sans frottement dans le volume de travail et supportant des pressions et des temperatures elevees |
PCT/FR2002/004053 WO2003046338A1 (fr) | 2001-11-30 | 2002-11-27 | Machine volumetrique rotative |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1448873A1 true EP1448873A1 (fr) | 2004-08-25 |
EP1448873B1 EP1448873B1 (fr) | 2008-10-01 |
Family
ID=8869941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02791906A Expired - Lifetime EP1448873B1 (fr) | 2001-11-30 | 2002-11-27 | Machine volumetrique rotative |
Country Status (9)
Country | Link |
---|---|
US (1) | US7488166B2 (fr) |
EP (1) | EP1448873B1 (fr) |
CN (1) | CN100458103C (fr) |
AT (1) | ATE409799T1 (fr) |
AU (1) | AU2002358210A1 (fr) |
CA (1) | CA2464335C (fr) |
DE (1) | DE60229161D1 (fr) |
FR (1) | FR2833048B1 (fr) |
WO (1) | WO2003046338A1 (fr) |
Families Citing this family (14)
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FR2864462B1 (fr) | 2003-12-24 | 2007-01-26 | Abb Process Ind | Dispositif de distribution de fluide |
CN100460641C (zh) * | 2005-06-02 | 2009-02-11 | 重庆大学 | 闭燃转叶发动机的背压叶片机构 |
CN101418773B (zh) * | 2008-12-11 | 2010-12-08 | 宁波华液机器制造有限公司 | 高性能球形液压马达 |
ITFR20090014A1 (it) * | 2009-05-15 | 2010-11-16 | Aldo Salvatore Coraggio | Topologia e funzionamento di una macchina volumetrica rotante con paletta fissa, radiale e concentrica rispetto all'asse di rotazione e con assoluta assenza di particolari meccanici soggetti a variazione di moto. |
CN102305104A (zh) * | 2011-05-19 | 2012-01-04 | 大连桑特尔汽车电子有限公司 | 膨胀比自动可调气体发动机 |
FR2979659A1 (fr) * | 2011-09-01 | 2013-03-08 | Rene Snyders | Rotor pour une machine volumetrique et machine volumetrique presentant un tel rotor |
IN2013MU03278A (fr) * | 2013-10-18 | 2015-07-17 | Das Ajee Kamath | |
CN104632287A (zh) * | 2014-01-03 | 2015-05-20 | 摩尔动力(北京)技术股份有限公司 | 圆形缸轴向隔离流体机构及包括其的装置 |
CN104632286A (zh) * | 2014-01-03 | 2015-05-20 | 摩尔动力(北京)技术股份有限公司 | 圆形缸径向隔离流体机构及包括其的装置 |
CN104632288A (zh) * | 2014-01-09 | 2015-05-20 | 摩尔动力(北京)技术股份有限公司 | 圆形缸轴向隔离同轮控制流体机构及包括其的装置 |
CN104632289A (zh) * | 2014-01-09 | 2015-05-20 | 摩尔动力(北京)技术股份有限公司 | 圆形缸径向隔离同体控制流体机构及包括其的装置 |
CN104675438A (zh) * | 2014-01-22 | 2015-06-03 | 摩尔动力(北京)技术股份有限公司 | 径向多级流体机构及包括其的装置 |
CN104727934A (zh) * | 2014-02-02 | 2015-06-24 | 摩尔动力(北京)技术股份有限公司 | 径向多级防窜流流体机构及包括其的装置 |
CN113606133A (zh) * | 2021-08-06 | 2021-11-05 | 常州大学 | 环形变量泵 |
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AU4932299A (en) | 1999-07-30 | 2001-02-19 | Yoshikane Ikitake | Reciprocating vane type rotary internal combustion engine |
GB9918331D0 (en) | 1999-08-04 | 1999-10-06 | Driver Technology Ltd | Rotary positive-displacement fluid machines |
GB9921458D0 (en) | 1999-09-11 | 1999-11-10 | Driver Technology Ltd | A rotary positive-displacement fluid machine |
AUPQ479199A0 (en) | 1999-12-21 | 2000-02-03 | Merlin Corporation Pty Ltd | A rotary apparatus |
EP1118773A3 (fr) | 2000-01-20 | 2001-08-08 | Joma-Hydromechanic GmbH | Pompe ou moteur à palettes |
FR2806751B1 (fr) | 2000-03-24 | 2002-09-13 | Julien Jean Louis Drouet | Machine rotative a palettes, cette machine pouvant etre un moteur ou une pompe, et ensemble comportant un tel moteur |
WO2001079659A1 (fr) | 2000-04-17 | 2001-10-25 | Luk Fahrzeug-Hydraulik Gmbh & Co. Kg | Pompe a palettes |
-
2001
- 2001-11-30 FR FR0115468A patent/FR2833048B1/fr not_active Expired - Fee Related
-
2002
- 2002-11-27 AT AT02791906T patent/ATE409799T1/de not_active IP Right Cessation
- 2002-11-27 EP EP02791906A patent/EP1448873B1/fr not_active Expired - Lifetime
- 2002-11-27 WO PCT/FR2002/004053 patent/WO2003046338A1/fr active IP Right Grant
- 2002-11-27 CN CNB028238117A patent/CN100458103C/zh not_active Expired - Fee Related
- 2002-11-27 AU AU2002358210A patent/AU2002358210A1/en not_active Abandoned
- 2002-11-27 US US10/497,303 patent/US7488166B2/en not_active Expired - Fee Related
- 2002-11-27 DE DE60229161T patent/DE60229161D1/de not_active Expired - Lifetime
- 2002-11-27 CA CA002464335A patent/CA2464335C/fr not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO03046338A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2833048A1 (fr) | 2003-06-06 |
CA2464335A1 (fr) | 2003-06-05 |
US7488166B2 (en) | 2009-02-10 |
FR2833048B1 (fr) | 2004-01-16 |
AU2002358210A1 (en) | 2003-06-10 |
CA2464335C (fr) | 2010-01-12 |
CN1596332A (zh) | 2005-03-16 |
CN100458103C (zh) | 2009-02-04 |
EP1448873B1 (fr) | 2008-10-01 |
DE60229161D1 (de) | 2008-11-13 |
WO2003046338A1 (fr) | 2003-06-05 |
ATE409799T1 (de) | 2008-10-15 |
US20050019197A1 (en) | 2005-01-27 |
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