EP1948937A1 - Rotorpumpe - Google Patents
RotorpumpeInfo
- Publication number
- EP1948937A1 EP1948937A1 EP06792323A EP06792323A EP1948937A1 EP 1948937 A1 EP1948937 A1 EP 1948937A1 EP 06792323 A EP06792323 A EP 06792323A EP 06792323 A EP06792323 A EP 06792323A EP 1948937 A1 EP1948937 A1 EP 1948937A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wing
- pump according
- rotor pump
- groove
- rotor
- 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
- 230000002093 peripheral effect Effects 0.000 claims abstract description 13
- 239000004033 plastic Substances 0.000 claims abstract description 5
- 229920001169 thermoplastic Polymers 0.000 claims description 8
- 239000004416 thermosoftening plastic Substances 0.000 claims description 8
- 239000003000 extruded plastic Substances 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000012815 thermoplastic material Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C18/3441—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
- F04C18/3442—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the inlet and outlet opening
-
- 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
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
- F01C21/0809—Construction of vanes or vane holders
- F01C21/0818—Vane tracking; control therefor
- F01C21/0827—Vane tracking; control therefor by mechanical means
- F01C21/0845—Vane tracking; control therefor by mechanical means comprising elastic means, e.g. springs
-
- 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
- F04C2220/00—Application
- F04C2220/10—Vacuum
-
- 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
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/001—Radial sealings for working fluid
- F04C27/003—Radial sealings for working fluid of resilient material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
- F05C2225/08—Thermoplastics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
- F05C2225/12—Polyetheretherketones, e.g. PEEK
Definitions
- the invention relates to a rotor pump with a pump housing and a rotatably mounted therein rotor, wherein a single wing is slidably mounted with its wing body in the rotor and rests with its wing tips on an inner peripheral surface of the pump housing and defines a suction chamber and a pressure chamber, and the wing a having constant length, wherein the wing body is made of plastic and provided at its free, the inner peripheral surface facing ends provided wing tips made of a thermoplastic.
- a rotor pump with a rotatably mounted therein rotor wherein in the rotor a single wing is slidably mounted.
- This wing has wing tips which are made of a hard material which is harder than the inner peripheral surface of the pump housing of the rotor pump.
- These inserts are glued, injected or cast. Due to the hard material of the inserts, the wear occurs mainly on the inner peripheral surface of the pump housing, so that it must be replaced when the wear limit is reached. Usually, the pump is replaced and not repaired, as a repair would be too expensive.
- a vacuum pump has become known in which the wing is made of aluminum. Such wings are relatively heavy and have a large inertia.
- the wing body is made of a thermoset and the wing tip of a thermoplastic, wherein the wing body and the wing tip are joined together by an injection molding process. Because the two Parts enter into an insufficient material conclusion, the wing body has three-quarter-circle grooves, which are filled by the thermoplastic, so that the parts are also positively connected, but then inextricably linked.
- Further pumps or wings for pumps are known from: DE-A-103 07 040, EP-AI 424 495, JP-A-03 151589 and JP-A-02 308992.
- the invention has for its object to provide a rotor pump, which is cheaper in case of repair.
- the wing consists of a relatively light base material, namely of plastic for the wing base body and of a thermoplastic for the wing tips.
- plastic for the wing base body
- thermoplastic for the wing tips.
- the wing is therefore easier to move back and forth in the rotor and the wear is reduced.
- only the wing or a part of the wing must be replaced because wear mainly the wing tips and the inner peripheral surface of the pump housing remains virtually wear-free. Since the wing is merely inserted into a slot of the rotor, the replacement of the wing can be made quickly and inexpensively. A complete replacement of the pump housing is no longer necessary.
- the positive connection has the significant advantage that no additional aids, such as glue or the like, are needed to secure the wing tip to the wing body. Thus, there is no danger of foreign substances entering the lubricating oil circuit.
- a significant advantage is seen in the fact that worn or damaged wing tips can be easily replaced because they are releasably fixed to the wing body. They are positively connected to the wing body and thus captive and connected in the correct position. Since it is no longer necessary to replace the entire wing in the event of repair, cost savings are achieved.
- wing tips made of other materials can be used, if necessary. It can also be used two wing tips, which consist of different materials, which may contain a wing tip, for example, graphite for Lubrikations section.
- the two wing tips have the same cross-sectional shape.
- This embodiment of the wing tips has the significant advantage that only one form must be stored at wing tips, whereby the storage costs are reduced.
- the production of such a wing tip is cheaper, since it can be produced in larger quantities.
- the wing body can be made of a duroplastic, e.g. consist of a fiber-reinforced, in particular glass fiber reinforced phenolic molding composition, such as phenol novolac exist.
- a duroplastic e.g. consist of a fiber-reinforced, in particular glass fiber reinforced phenolic molding composition, such as phenol novolac exist.
- the wing base body and / or the wing tip is made of a thermoplastic material.
- This can e.g. a PPS (polyphenylene sulfide), with or without fiber reinforcement, such as carbon or glass fibers, a PA 66, in particular radiation crosslinked, and also with or without
- Fiber reinforcement such as carbon or glass fibers. It is also conceivable, especially for the wing tips, PEEK polyetheretherketone).
- a preferred variant of the invention provides that the wing body at its free, the inner circumferential surface facing ends in each case at least one, in particular undercut groove and the wing tip is provided with a groove engaging in the spring.
- tongue and groove connections have proven themselves many times and are quick and inexpensive to produce and can be added manually.
- tongue and groove connections can be made so that they have an interference fit, so that the wing tip is securely attached to the wing body.
- the tongue and groove connection has a small clearance, so that the wing has a small play compensation in its longitudinal direction.
- the groove and the spring form a dovetail connection.
- the wing tip on a particular undercut groove and the wing body is provided at its free, the inner peripheral surface facing ends in each case with a groove engaging in the groove. Also, such tongue and groove connection has the above advantages and properties.
- An optimum sealing of the connection of wing tip and wing body is effected in that the axial direction of the groove and the spring is parallel to the direction of the axis of rotation of the wing.
- the gap between the groove and the spring is open only in the direction of the floor or the ceiling of the suction chamber or pressure chamber, so that the possibility exists, by suitable sealing measures, such as lubricating oil, sealing washers or sealing lips, which are provided directly on the wing and, where appropriate revolve with the wing to guide the wing tight in the pump housing.
- suitable sealing measures such as lubricating oil, sealing washers or sealing lips, which are provided directly on the wing and, where appropriate revolve with the wing to guide the wing tight in the pump housing.
- the tongue and groove connection forms a seal.
- a relatively simple and inexpensive replacement of the wing tips can take place in that according to a preferred embodiment, the spring parallel to the direction of Rotary axis of the wing into the groove, in particular manually, can be inserted. Even with a press fit in this case there is the possibility to replace the wing tip, since the spring, for example with a suitable tool, can be pressed out of the groove.
- the groove and the spring have a circular or Y-shaped cross-section. Due to the undercuts, a secure fixation of the wing tip on the wing body is guaranteed, even when dismantled, i. not mounted in the rotor.
- the fits can be chosen so that a manual assembly and disassembly is possible. A Pxesspassung for a mechanical addition is equally possible.
- An embodiment provides that the spring is provided at its end engaging in the groove with an open-edged recess. As a result, the end to be joined is slightly elastic, whereby the joining process is facilitated.
- the spring has an engaging in the groove fork-shaped end with two fork ends.
- the fork ends are slightly elastically deformable towards each other. As a result, temperature-induced changes in length can be compensated.
- the wing body may be an extruded profile, so that this only has to be cut to the desired wing width.
- the wing tip may for example also be a section of an extruded plastic profile, which is adapted to the width of the wing.
- a Weizer Struktur provides that the wing tips are secured against pivoting or tilting on the wing body.
- Figure 1 is a perspective view of the rotor pump with inserted rotor and vanes
- Figure 2 is a perspective view of a first embodiment of a wing with wing tip to be used
- Figure 3 is a perspective view of a first embodiment of a wing with inserted wing tip
- Figure 4 is a perspective view of a second embodiment of a wing with wing tip to be inserted.
- FIG. 5 is a perspective view of a first embodiment of a wing with inserted wing tip.
- reference numeral 10 denotes a rotor pump, wherein the pump housing 12 is shown without housing cover.
- the pump housing 12 has a suction port 14, which opens into an interior 16.
- In this interior 16 is a generally designated 18 rotor, in which a wing 20 is mounted orthogonal to the axis of rotation 21 slidably.
- the wing 20 divides the working space 22 formed by the inner space 18 into a suction space 24 and a pressure space 26. In this case, the wing 20 rests with its two wing tips 28 against an inner peripheral surface 30 surrounding the working space 22.
- the wing 20 is, as shown in Figure 2, formed by a wing body 32 and the two wing tips 28, wherein only one wing tip 28 is shown.
- the wing body 32 is made of a thermosetting plastic and is a molded part or consists of a thermoplastic and is an extruded profile.
- the wing tip 28 is made of a thermoplastic and is injection molded or part of an extruded plastic profile.
- the free end 34 of the wing base body 32 has a groove 36 extending parallel to the axis of rotation 21 and having two
- the wing tip 28 has a spring 40 which widens in the direction of its free end and thus fits positively into the groove 36.
- the wing tip 28 is inserted parallel to the axis of rotation 21 in the groove 36.
- the wing tip 28 has a substantially Y-shaped foot and the groove 36 is Y-shaped.
- the groove 36 facing the end 42 of the foot is provided with an open-edged recess 44, so that the foot ends fork-shaped.
- the two fork ends 46 and 48 are slightly elastically towards each other, ie in the direction of the double arrow 50, deformable. This gives the wing tip 28 in the groove 36 an optimal fixation without Fixierologisstoff and is again from the groove 36 solvable or removable.
- chamfers 52 which are provided on the end faces 54 of the wing tips 28.
- the insertion bevels 52 facilitate insertion of the wing tips 28 in the groove 36, which takes place in the axial direction of the groove 36.
- the wing tip 28 has a substantially circular foot and the groove 36 is circular in shape. It is also noteworthy that the shaft of the wing tip 28 is supported on the rear side in the direction of rotation almost to the inner peripheral surface 39. This results in a very rigid connection between wing tip 28 and wing body 32.
- the rotor pump 10 according to the invention has the significant advantage that when the wear limit is reached, only the wing 20 as such or else only the wing tips 28 have to be exchanged. This can be done manually or by machine and is feasible in a short time and inexpensively.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510056270 DE102005056270B3 (de) | 2005-11-14 | 2005-11-14 | Rotorpumpe |
PCT/EP2006/009464 WO2007054162A1 (de) | 2005-11-14 | 2006-09-29 | Rotorpumpe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1948937A1 true EP1948937A1 (de) | 2008-07-30 |
EP1948937B1 EP1948937B1 (de) | 2009-03-11 |
Family
ID=37387270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06792323A Active EP1948937B1 (de) | 2005-11-14 | 2006-09-29 | Rotorpumpe |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1948937B1 (de) |
DE (2) | DE102005056270B3 (de) |
WO (1) | WO2007054162A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015213098B4 (de) | 2015-07-13 | 2017-05-04 | Joma-Polytec Gmbh | Flügel für eine Flügelzellenpumpe und Flügelzellenpumpe |
CN105156324B (zh) * | 2015-09-11 | 2018-09-04 | 裕克施乐塑料制品(太仓)有限公司 | 一种新型塑料真空泵叶片及真空泵 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1052169A (de) * | 1900-01-01 | |||
JPS60147591A (ja) * | 1984-01-11 | 1985-08-03 | Hitachi Ltd | 流体機械 |
JPH03151589A (ja) * | 1989-11-08 | 1991-06-27 | Kubota Corp | コンプレッサー用複合ベーンとその製造方法 |
DE10084170D2 (de) * | 1999-12-23 | 2002-11-21 | Luk Automobiltech Gmbh & Co Kg | Vakuumpumpe |
DE50100666D1 (de) * | 2000-03-15 | 2003-10-30 | Joma Hydromechanic Gmbh | Verdrängerpumpe |
DE10046697A1 (de) * | 2000-09-21 | 2002-04-11 | Bosch Gmbh Robert | Flügel aus Kunststoff für eine Flügelzellen-Vakuumpumpe |
WO2004074687A2 (de) * | 2003-02-20 | 2004-09-02 | Luk Automobiltechnik Gmbh & Co. Kg | Vakuumpumpe mit einem kunststoffflügel |
DE10307040A1 (de) * | 2003-02-20 | 2004-09-16 | Luk Automobiltechnik Gmbh & Co. Kg | Vakuumpumpe |
EP1471255B1 (de) * | 2003-04-24 | 2005-07-20 | Joma-Hydromechanic GmbH | Flügelzellenpumpe |
DE102004053521A1 (de) * | 2004-10-29 | 2006-05-11 | Joma-Hydromechanic Gmbh | Flügel für eine Rotorpumpe |
-
2005
- 2005-11-14 DE DE200510056270 patent/DE102005056270B3/de active Active
-
2006
- 2006-09-29 DE DE502006003133T patent/DE502006003133D1/de active Active
- 2006-09-29 WO PCT/EP2006/009464 patent/WO2007054162A1/de active Application Filing
- 2006-09-29 EP EP06792323A patent/EP1948937B1/de active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2007054162A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2007054162A1 (de) | 2007-05-18 |
EP1948937B1 (de) | 2009-03-11 |
DE502006003133D1 (de) | 2009-04-23 |
DE102005056270B3 (de) | 2007-03-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1766237B1 (de) | Einflügelvakuumpumpe | |
EP2815127B1 (de) | Drehkolbenpumpe | |
EP2913530A1 (de) | Rotationspumpe mit Kunststoffverbundstruktur | |
WO2007118501A1 (de) | Rotorpumpe | |
EP1948937B1 (de) | Rotorpumpe | |
DE3707722A1 (de) | Rotorpumpe, insbesondere fuer die foerderung von feststoffe enthaltenden fluessigkeiten | |
DE102013104069B4 (de) | Kreiselpumpe und Anordnung zur saugseitigen Radialspaltabdichtung | |
DE102009017452B4 (de) | Ölförderpumpe | |
EP3234369A1 (de) | Axialventilator | |
WO2007042135A1 (de) | Rotorpumpe | |
EP2002084B1 (de) | Rotorpumpe und flügel für eine rotorpumpe | |
DE102008045440A1 (de) | Drehkolben einer Drehkolbenpumpe und Drehkolbenpumpe | |
DE102005058129A1 (de) | Vakuumpumpe | |
WO2010052038A1 (de) | Fluegel fuer eine einfluegelvakuumpumpe | |
DE102010062298B4 (de) | Impellerpumpe | |
DE19802264C1 (de) | Rotorpumpe | |
DE8201247U1 (de) | Schaufel fuer grosse ventilatoren, geblaese und dergleichen | |
DE102011018434A1 (de) | Kreiselpumpe mit Schneidwerk | |
EP2044330B1 (de) | Rotorpumpe | |
DE102022119801A1 (de) | Membransystem mit Selbsthemmung | |
DE102015210601A1 (de) | Laufrad für eine Pumpe oder Turbine | |
DE102015213098B4 (de) | Flügel für eine Flügelzellenpumpe und Flügelzellenpumpe | |
DE102021132549A1 (de) | Gelenkverbindung, rotierende Einheit und Exzenterschneckenpumpe | |
WO2023126119A1 (de) | Stator für eine exzenterschneckenpumpe | |
DE102021126416A1 (de) | Axialsicherung einer Pumpe |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20061209 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REF | Corresponds to: |
Ref document number: 502006003133 Country of ref document: DE Date of ref document: 20090423 Kind code of ref document: P |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20091214 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20140915 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20140917 Year of fee payment: 9 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20150929 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20160531 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150929 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150930 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230621 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20231117 Year of fee payment: 18 |