DE2821458A1 - HYDROELECTRIC MACHINE KIT - Google Patents
HYDROELECTRIC MACHINE KITInfo
- Publication number
- DE2821458A1 DE2821458A1 DE19782821458 DE2821458A DE2821458A1 DE 2821458 A1 DE2821458 A1 DE 2821458A1 DE 19782821458 DE19782821458 DE 19782821458 DE 2821458 A DE2821458 A DE 2821458A DE 2821458 A1 DE2821458 A1 DE 2821458A1
- Authority
- DE
- Germany
- Prior art keywords
- machine
- impeller
- rotor
- circumferential area
- machine set
- 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
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/06—Bearing arrangements
- F03B11/063—Arrangements for balancing axial thrust
- F03B11/066—Arrangements for balancing axial thrust in vertical axis machines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/50—Bearings
- F05B2240/52—Axial thrust bearings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Turbines (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Description
282U58282U58
Hydroelektrischer MaschinensatzHydroelectric machine set
Die Erfindung betrifft einen hydroelektrischen Maschinensatz mit einer elektrischen Maschine und einer Francismaschine, einer den Rotor der elektrischen Maschine und das Laufrad der Francismaschine aufweisenden rotierenden Einheit und einer Lagerung der rotierenden Einheit gegenüber dem Fundament des Maschinensatzes.The invention relates to a hydroelectric machine set with an electric machine and a Francis machine, a rotating one having the rotor of the electrical machine and the impeller of the Francis machine Unit and a bearing of the rotating unit opposite the foundation of the machine set.
Bei den bekannten derartigen Maschinensätzen ist das Laufrad der Francismaschine mit dem Rotor der elektrischen Maschine durch eine Welle verbunden, welche mittels hydrodynamischer Lager gegenüber dem Fundament gelagert ist.In the known machine sets of this type, the impeller of the Francis machine with the rotor of the electric one Machine connected by a shaft, which is supported by hydrodynamic bearings opposite the foundation is.
Je grosser nun der Maschinensatz wird, um so nachgiebiger wird er, so dass die biegekritischen Drehzahlen tiefer zu liegen kommen oder alle Materialstärken wesentlich vergrössert werden müssen. Damit wird schnell eine technische und wirtschaftliche Grenze für die Grosse des Maschinensatzes erreicht.The larger the machine set becomes, the more flexible it is it is so that the critical bending speeds come to lie lower or all material thicknesses need to be increased significantly. This quickly becomes a technical and economic limit for the large of the machine set reached.
Der Erfinder hat sich die Aufgabe gestellt, einen hydroelektrischen Maschinensatz zu schaffen, der wesentlich stabiler gebaut ist, so dass grössere Einheitsleistungen erreichbar sind. The inventor set himself the task of creating a hydroelectric machine set that essentially is built more stable, so that greater standard performance can be achieved.
809851/0654809851/0654
282H58282H58
Der Erfindung liegt die Erkenntnis zugrunde, dass mit dem Grösserwerden des Maschinensatzes insbesondere die Kräfte sowie die Wege, auf denen diese Kräfte zwischen dem Rotorkranz der elektrischen Maschine, der gelagerten Welle und dem Laufschaufelkranz der Prancismaschine zu übertragen sind, grosser werden, und dass sich die Kräfte und Wege zwischen den Lagern und dem Fundament ebenso vergrössern.The invention is based on the knowledge that as the machine set increases, in particular the forces as well as the ways in which these forces between the rotor ring of the electrical machine, the supported shaft and to be transferred to the rotor blade ring of the Prancism machine are, become larger, and that the forces and paths between the bearings and the foundation also increase.
Die gestellte Aufgabe wird bei dem eingangs beschriebenen hydroelektrischen Maschinensatz erfindungsgemäss dadurch gelöst, dass die rotierende Einheit im Umfangsbereich des Tragrings des Rotors und im Umfangsbereich des Laufrads jeweils mittels eines Kranzes von hydrostatischen Radiallagern gelagert ist.In the case of the hydroelectric machine set described at the outset, according to the invention, the task set is thereby achieved solved that the rotating unit in the circumferential area of the Support ring of the rotor and in the circumferential area of the impeller is mounted in each case by means of a ring of hydrostatic radial bearings.
Besonders vorteilhaft ist es dabei, wenn der Umfangsbereich des Tragrings des Rotors mit dem Umfangsbereich des Laufrads direkt mittels einer Hohlwelle verbunden ist.It is particularly advantageous if the circumferential area of the support ring of the rotor with the circumferential area of the Impeller is connected directly by means of a hollow shaft.
Um bei Maschinensätzen mit vertikal verlaufender Achse auch die Gewichtskräfte auf kürzestem Weg aufzunehmen, wird die rotierende Einheit im Umfangsbereich des Tragrings des Rotors und/oder im Umfangsbereich des Laufrads mittels eines Kranzes von hydrostatischen Axiallagern gelagert.In order to also absorb the weight forces in the shortest possible way in the case of machine sets with a vertical axis, the rotating unit becomes in the circumferential area of the support ring of the rotor and / or in the circumferential area of the impeller stored by means of a ring of hydrostatic axial bearings.
■Vorteilhafterweise wird der Rotor der elektrischen Maschine ringförmig ausgebildet.The rotor of the electrical machine is advantageously used ring-shaped.
Weiter ist es für den hydroelektrischen Maschinensatz vorteilhaft, die Uebergangsstellen zwischen den den Betriebswasserraum begrenzenden Wänden des Laufrads und den den Betriebswasserraum begrenzenden Wänden des stationären Oberwasserteils und/oder Unterwasser-It is also advantageous for the hydroelectric machine set, the transition points between the Walls of the impeller delimiting the process water space and the walls delimiting the process water space of the stationary upper water part and / or underwater
809851/0654809851/0654
282U58282U58
teils der Francismaschine mittels einer hydrostatischen Dichtungsvorrichtung zu überbrücken.partly the Francis machine by means of a hydrostatic Bridge sealing device.
In der Zeichnung, anhand welcher die Erfindung näher erläutert wird, ist ein Ausführungsbeispiel des Erfindungsgegenstandes vereinfacht dargestellt.In the drawing, on the basis of which the invention is explained in more detail, is an embodiment of the subject matter of the invention shown in simplified form.
Die einzige Figur zeigt einen vertikalen Axialsehnitt durch einen hydroelektrischen Maschinensatz.The single figure shows a vertical axial section through a hydroelectric machine set.
Der dargestellte hydroelektrische Maschinensatz weist eine elektrische Maschine mit einem Stator 1 und einem Rotor 2 mit einem Tragring 2' für die Pole oder die Wicklung, sowie eine Francismaschine mit einem stationären Leitradkranz 3 und einem Laufrad 4 auf. Der Rotor 2 der elektrischen Maschine und das Laufrad 4 der Francismaschine gehören zur rotierenden Einheit des Maschinensatzes, die gegenüber einem Fundament 5 gelagert ist.The illustrated hydroelectric machine set has an electrical machine with a stator 1 and a Rotor 2 with a support ring 2 'for the pole or the Winding, as well as a Francis machine with a stationary idler rim 3 and an impeller 4. The rotor 2 of the electric machine and the impeller 4 of the Francis machine belong to the rotating unit of the machine set, which is mounted opposite a foundation 5.
Dabei ist die rotierende Einheit 2, 4 im Umfangsbereich des Tragrings 2' des Rotors 2 und im Umfangsbereich des Laufrads 4 jeweils mittels eines Kranzes von hydrostatischen Radiallagern 6 bzw. 7 gelagert.The rotating unit 2, 4 is in the circumferential area of the support ring 2 'of the rotor 2 and in the circumferential area of the impeller 4 each by means of a ring of hydrostatic Radial bearings 6 and 7 mounted.
Weiter ist der Umfangsbereich des Tragrings 2' des Rotors mit dem Umfangsbereich des Laufrads 4 direkt mittels einer Hohlwelle '8 verbunden.Next is the circumferential area of the support ring 2 'of the rotor connected to the circumferential area of the impeller 4 directly by means of a hollow shaft '8.
Auf diese Weise sind diejenigen Teile der rotierenden Einheit, in denen die Betriebskräfte auftreten, auf kürzestem Wege miteinander verbunden und ohne Umwege im Fundament gelagert. Dadurch wird der Maschinensatz sehr stabil und trotzdem leicht, was den Bau grössererIn this way those parts of the rotating unit in which the operating forces occur are on Connected to each other by the shortest possible route and stored in the foundation without any detours. This creates the machine set very stable and yet light, which makes the construction bigger
809851/0654809851/0654
Einheiten ermöglicht. Dadurch dass die Lager der rotierenden Einheit als hydrostatische Lager ausgebildet sind, bleiben auch die Reibungskräfte trotz der grösseren Lagerdurchmesser klein.Units enabled. Because the bearings of the rotating unit are designed as hydrostatic bearings, they remain also the frictional forces despite the larger bearing diameter small.
Beim Ausführungsbeispiel ist auch die Axiallagerung .der rotierenden Einheit 2, 4 im Umfangsbereich, d.h. im Umfangsbereich des Tragrings 2' des Rotors 2 durch einen Kranz von hydrostatischen Axiallagern 9 gebildet.In the exemplary embodiment, the axial bearing is .der rotating unit 2, 4 in the circumferential area, i.e. in the circumferential area of the support ring 2 'of the rotor 2 by a Ring formed by hydrostatic axial bearings 9.
Der Rotor 2 der elektrischen Maschine hat eine grosse zentrale Oeffnung, d.h. ist ringförmig ausgebildet, so dass lediglich die den Betriebswasserraum nach oben begrenzende Wand 10 des Laufrads 4 in den zentralen Bereich der rotierenden Einheit reicht.The rotor 2 of the electrical machine has a large central opening, i.e. it is ring-shaped, so that only the wall 10 of the impeller 4 delimiting the operating water space upwards into the central The area of the rotating unit is sufficient.
Die Uebergangsstelle zwischen der Wand 10 des Laufrads 4 und der den Betriebswasserraum nach oben begrenzenden Wand 11 des stationären Oberwasserteils, d.h. des Leitschaufelkranzes 3 ist mittels einer hydrostatischen Dichtungsvorrichtung 12 überbrückt. Gewünschtenfalls könnten solche hydrostatischen Dichtungsvorrichtung auch an den Uebergangsstellen I^ und 14 zwischen der äusseren Wand 15 des Laufrads 4 und den den Betriebswasserraum begrenzenden Wänden des stationären Oberwasserteils bzw. Unterwasserteils der Francismaschine angeordnet werden.The transition point between the wall 10 of the impeller 4 and the wall 11 of the stationary upper water part that delimits the operating water space at the top, i.e. the guide vane ring 3 is by means of a hydrostatic Sealing device 12 bridged. If so desired Such hydrostatic sealing devices could also be found at the transition points I ^ and 14 between the outer wall 15 of the impeller 4 and the walls of the stationary one that delimit the process water space Upper water part or lower water part of the Francis machine are arranged.
Die Francismaschine kann als Turbine, als Pumpe oder als Pumpturbine betrieben sein.The Francis machine can be operated as a turbine, a pump or a pump turbine.
Der Umfangsbereich des Laufrads 4 umfasst auch die Ringscheibe 15, und der Umfangsbereich des Tragrings 2' auch den Bereich der stirnseitigen Flanke des TragringsThe circumferential area of the impeller 4 also includes the annular disk 15, and the circumferential area of the support ring 2 'also the area of the front flank of the support ring
809851/0654809851/0654
-5--5-
282H58282H58
und die daran anschiiessende Endpartie der Hohlwelle 8,and the adjoining end section of the hollow shaft 8,
Die die Hohlwelle 8 bildende Wand kann zylindermantelförmig
oder kegeistumpfmantelformig sein oder sich aus
zylindermantelförmigen und kegeistumpfmantelförmigen
Teilen zusammensetzen.The wall forming the hollow shaft 8 can be in the form of a cylinder jacket or a truncated cone or can be made up of a cylinder jacket and a truncated cone jacket
Put parts together.
809851/0654809851/0654
-6--6-
L e e r s e i t eL e r s e i t e
Claims (4)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH643477A CH621602A5 (en) | 1977-05-25 | 1977-05-25 | Hydro-electric generating set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2821458A1 true DE2821458A1 (en) | 1978-12-21 |
| DE2821458C2 DE2821458C2 (en) | 1984-09-20 |
Family
ID=4309578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2821458A Expired DE2821458C2 (en) | 1977-05-25 | 1978-05-17 | Hydroelectric machine set |
Country Status (19)
| Country | Link |
|---|---|
| JP (1) | JPS53146048A (en) |
| AR (1) | AR215057A1 (en) |
| AT (1) | AT359004B (en) |
| AU (1) | AU3641678A (en) |
| BE (1) | BE867317A (en) |
| BR (1) | BR7803209A (en) |
| CA (1) | CA1109361A (en) |
| CH (1) | CH621602A5 (en) |
| DE (1) | DE2821458C2 (en) |
| ES (1) | ES470176A1 (en) |
| FI (1) | FI60596C (en) |
| FR (1) | FR2392246A1 (en) |
| GB (1) | GB1603995A (en) |
| IN (1) | IN148923B (en) |
| IT (1) | IT1094732B (en) |
| NO (1) | NO781812L (en) |
| PT (1) | PT68064B (en) |
| SE (1) | SE7805952L (en) |
| YU (1) | YU123478A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3910192A1 (en) * | 2020-05-11 | 2021-11-17 | DIVE Turbinen GmbH & Co. KG | Water turbine and/or water pump |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19960278A1 (en) * | 1999-12-14 | 2001-07-12 | Siemens Ag | Machine set |
| GB2366332B (en) * | 2000-08-30 | 2004-10-20 | Rodney Bruce Gilmour | Sealess pump with diametric current drive |
| DE102006043946A1 (en) * | 2006-09-14 | 2008-03-27 | Oswald Elektromotoren Gmbh | turbine device |
| FR2932854B1 (en) * | 2008-06-23 | 2014-04-18 | Alstom Hydro France | HYDRAULIC MACHINE WITH VERTICAL AXIS. |
| FR2934015A1 (en) * | 2008-07-15 | 2010-01-22 | Alstom Hydro France | HYDRAULIC MACHINE AND ENERGY CONVERSION INSTALLATION COMPRISING SUCH A MACHINE |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR906688A (en) * | 1943-01-11 | 1946-01-16 | Group of machines consisting of an axial current turbine and an electric machine | |
| US3644053A (en) * | 1970-07-17 | 1972-02-22 | English Electric Co Ltd | Water turbines |
| CH550326A (en) * | 1972-10-05 | 1974-06-14 | Escher Wyss Ag | HYDRAULIC MACHINE. |
| AT328997B (en) * | 1972-12-14 | 1976-04-26 | Charmilles Sa Ateliers | HYDRAULIC MACHINE |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE685187C (en) * | 1938-01-29 | 1939-12-13 | Garbe Lahmeyer & Co Akt Ges | Sealing of the rotor against the fixed pipe walls of electrical water turbine generators |
| DE691482C (en) * | 1939-03-31 | 1940-05-28 | Arno Fischer | Water turbine or pump of greater power with a horizontal or almost horizontal axis |
| FR1569275A (en) * | 1968-06-14 | 1969-05-30 |
-
1977
- 1977-05-25 CH CH643477A patent/CH621602A5/en not_active IP Right Cessation
-
1978
- 1978-04-27 IT IT22758/78A patent/IT1094732B/en active
- 1978-05-16 CA CA303,403A patent/CA1109361A/en not_active Expired
- 1978-05-17 GB GB20165/78A patent/GB1603995A/en not_active Expired
- 1978-05-17 DE DE2821458A patent/DE2821458C2/en not_active Expired
- 1978-05-19 BR BR7803209A patent/BR7803209A/en unknown
- 1978-05-22 JP JP6087778A patent/JPS53146048A/en active Pending
- 1978-05-22 BE BE187903A patent/BE867317A/en unknown
- 1978-05-22 PT PT68064A patent/PT68064B/en unknown
- 1978-05-23 YU YU01234/78A patent/YU123478A/en unknown
- 1978-05-24 AU AU36416/78A patent/AU3641678A/en active Pending
- 1978-05-24 AT AT379578A patent/AT359004B/en not_active IP Right Cessation
- 1978-05-24 IN IN559/CAL/78A patent/IN148923B/en unknown
- 1978-05-24 FI FI781646A patent/FI60596C/en not_active IP Right Cessation
- 1978-05-24 FR FR7815440A patent/FR2392246A1/en active Granted
- 1978-05-24 SE SE7805952A patent/SE7805952L/en unknown
- 1978-05-24 ES ES470176A patent/ES470176A1/en not_active Expired
- 1978-05-24 NO NO78781812A patent/NO781812L/en unknown
- 1978-05-28 AR AR272288A patent/AR215057A1/en active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR906688A (en) * | 1943-01-11 | 1946-01-16 | Group of machines consisting of an axial current turbine and an electric machine | |
| US3644053A (en) * | 1970-07-17 | 1972-02-22 | English Electric Co Ltd | Water turbines |
| CH550326A (en) * | 1972-10-05 | 1974-06-14 | Escher Wyss Ag | HYDRAULIC MACHINE. |
| AT328997B (en) * | 1972-12-14 | 1976-04-26 | Charmilles Sa Ateliers | HYDRAULIC MACHINE |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3910192A1 (en) * | 2020-05-11 | 2021-11-17 | DIVE Turbinen GmbH & Co. KG | Water turbine and/or water pump |
Also Published As
| Publication number | Publication date |
|---|---|
| SE7805952L (en) | 1978-11-26 |
| IN148923B (en) | 1981-07-18 |
| NO781812L (en) | 1978-11-28 |
| CH621602A5 (en) | 1981-02-13 |
| CA1109361A (en) | 1981-09-22 |
| IT7822758A0 (en) | 1978-04-27 |
| PT68064A (en) | 1978-06-01 |
| GB1603995A (en) | 1981-12-02 |
| BR7803209A (en) | 1978-11-28 |
| FI60596C (en) | 1982-02-10 |
| YU123478A (en) | 1983-01-21 |
| IT1094732B (en) | 1985-08-02 |
| AR215057A1 (en) | 1979-08-31 |
| BE867317A (en) | 1978-09-18 |
| DE2821458C2 (en) | 1984-09-20 |
| FR2392246B1 (en) | 1981-10-30 |
| AU3641678A (en) | 1979-11-29 |
| AT359004B (en) | 1980-10-10 |
| FR2392246A1 (en) | 1978-12-22 |
| FI781646A (en) | 1978-11-26 |
| JPS53146048A (en) | 1978-12-19 |
| FI60596B (en) | 1981-10-30 |
| ES470176A1 (en) | 1979-02-01 |
| PT68064B (en) | 1979-11-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0033847B1 (en) | Turbine set with a generator providing a constant-frequency mains supply | |
| EP2286083B1 (en) | Water wheel comprising a built-in generator | |
| DE60111879T2 (en) | Inline Pump | |
| DE2715729A1 (en) | ROTOR FOR A TURBINE | |
| DE2436635B2 (en) | Hydraulic machine | |
| DE2549700A1 (en) | IMPROVEMENT ON TURBOMOLECULAR PUMPS | |
| DE2821458A1 (en) | HYDROELECTRIC MACHINE KIT | |
| DE102007016879A1 (en) | Wind power plant for use on land and offshore strive, has rotor with aerodynamic function elements divided into two approximately equivalent parts, and circular construction part supporting active rotor parts of ring generator | |
| DE102012001107A1 (en) | Hydroelectric power plant with fish-driven impeller | |
| DE3612595A1 (en) | TURBO MACHINE | |
| DE69415269T2 (en) | Assembling a fuel pump | |
| DE1931832A1 (en) | Gear for changing the pitch of a rotor blade | |
| DE3042840C2 (en) | Side channel ring compressor | |
| DE3226470A1 (en) | Method and device for using wind power | |
| DE727858C (en) | Hollow runner gyroscope | |
| DE1503263A1 (en) | Hydroelectric machine set with a housing that is surrounded by process water on all sides and houses the electric machine | |
| CH347253A (en) | Bulb turbine or tube pump system | |
| EP2602479A1 (en) | Combination wind power assembly | |
| DE4113624A1 (en) | Drive for taking power from or giving power to rotors of machine - has ring with toothed belt and electric generators | |
| DE594930C (en) | Method for driving an impeller with the help of the guide pressure | |
| DE710021C (en) | Turbine or pump unit, in which the outer ring of the turbine or pump impeller is the carrier of the rotating poles of the electrical machine belonging to the unit | |
| DE102021126542A1 (en) | turbine arrangement | |
| DE2306588A1 (en) | METHOD FOR STORAGE OF A ROTATIONAL PART IN GENERATORS IN FLOOR AND STORAGE DEVICE FOR STORAGE OF SUCH PARTS | |
| DE945329C (en) | Cooling tower | |
| DE2017583A1 (en) | Drive for fluid flow machines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OAR | Request for search filed | ||
| OB | Request for examination as to novelty | ||
| OC | Search report available | ||
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: SULZER-ESCHER WYSS GMBH, 7980 RAVENSBURG, DE |
|
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |