EP1090231B1 - Reibungsvakuumpumpe mit chassis, rotor und gehäuse sowie einrichtung, ausgerüstet mit einer reibungsvakuumpumpe dieser art - Google Patents
Reibungsvakuumpumpe mit chassis, rotor und gehäuse sowie einrichtung, ausgerüstet mit einer reibungsvakuumpumpe dieser art Download PDFInfo
- Publication number
- EP1090231B1 EP1090231B1 EP99917896A EP99917896A EP1090231B1 EP 1090231 B1 EP1090231 B1 EP 1090231B1 EP 99917896 A EP99917896 A EP 99917896A EP 99917896 A EP99917896 A EP 99917896A EP 1090231 B1 EP1090231 B1 EP 1090231B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- pump
- pump according
- stator
- tie
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/02—Multi-stage pumps
- F04D19/04—Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
- F04D17/168—Pumps specially adapted to produce a vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps
- F04D29/602—Mounting in cavities
Definitions
- the invention relates to a turbomolecular vacuum pump with the characteristics of the generic term of the Patent claim 1, and a corresponding device with the features of the preamble of claim 19.
- DE-A-43 14 419 discloses various friction vacuum pumps (Turbomolecular pumps, pumps with turbomolecular pump stages and other friction pump stages) a type known as z. Zt. Is common and on offered to the market. You own a chassis that equipped with the drive motor and on the itself the rotor is supported. In addition, the housing is supported the pump on the chassis. It surrounds the rotor and the stator and also more or less the chassis. The Housing secures the assignment of said components to each other. Furthermore, it has the task of Stator Halbring discs and spacer rings existing stator center exactly, so that with friction vacuum pumps necessary small column to be adhered to can. The housing seals the vacuum pump to the outside down.
- a turbomolecular vacuum pump with the features of The preamble of claim 1 is known from DE-A-34 02 549 known.
- the first inner component is a tie rod system, that only has the task, stator components to hold together.
- the present invention is based on the object the adaptation of turbomolecular vacuum pumps to the Variety of applications specified by the customers to simplify.
- the friction vacuum pump 1 according to FIG 1 three pumping stages 12, 13, 14, two of which (12, 13) as turbomolecular vacuum pumping stages and one (14) as Molecular (Holweck) pumping stage are formed. To the Molecular pumping stage 14 joins the outlet of the Pump 17 on.
- the pump 1 is provided with two housings 18, 19 equipped.
- the inner housing 18 is substantially cylindrical and surrounds the stator 3.
- On his high-vacuum-side end face is with one inside directed edge 20 equipped, the stator 3 and in this case at the same time the upper one Stator ring forms.
- the housing 18th attached to the chassis 5, with the help of the flange 21.
- Flange 21 and chassis 5 are vacuum-tight connected with each other. This is between the flange 21st and the chassis 5, the sealing ring 21 'is arranged.
- the outer housing 19 has an inner bore 22 with an inward grading 23, whose height the width of the rim 20 corresponds to the first housing 18.
- a seal 24 which expedient in the front side of the housing 18 is inserted.
- a radial Sealing is possible.
- the housing 19 a device, e.g. the flange 25, with which it is attached to the chassis 5 or on the housing 18 is. After loosening this attachment, the from the inner housing 18 and the components therein formed unit as a whole from the bore 22nd be taken out. It forms one of the second housing 19 independent slot 27.
- the first, high vacuum side pump stage 12 is of four pairs of rotor blade rows and stator blade rows. Your inlet, the effective gas passage area, is designated 26.
- the rim 20 surrounds the gas passage area 26 and forms a passage opening 28 for entering the pump 1 gases.
- the second closes Pump stage 13, consisting of three pairs of one stator blade row and a rotor blade row. Your inlet is designated 29.
- the second pumping stage 13 is from the first pumping stage 12 spaced.
- the selected distance (height) a secures the free accessibility of the gas molecules to be pumped Gas inlet 29.
- the distance a is greater than a quarter, preferably greater than one third of the Diameter of the rotor system 4.
- the adjoining Holweck pump includes one rotating cylinder section 30, the outside and inside in a known manner, each with a thread groove 31, 32 equipped stator elements 33, 34 facing.
- Another, formed by the inner housing 18 opening is arranged laterally and designated 35. She is used for the passage of gases directly to the Inlet 29 of the second pumping stage 13 are supplied.
- the outer housing 19 has the task of the pump 1 and two pump stages (12, 13) of this pump with the device of the customer.
- the housing 19 is formed in the embodiment of Figure 1 in such a way that the levels of all the connection openings 36, 37 are located laterally. This is especially true the distance of the opening 37 to the associated gas inlet 29 very small, so the pumping speed of the pumping stage 13 impairing conductance losses negligible are. This would also for any further intermediate connection apply downstream of the intermediate connection 37/29 would be located. Otherwise, the diameter exceeds the connection opening 37, the height a by about the Double. This measure also serves to reduce the conductance losses between inlet 29 and port 37.
- the side connection openings can be equipped with one flange each. In the embodiment according to Figure 1 is a common Flange 39 is provided.
- the illustrated pump 1 or its pump-effective elements are expediently designed such that in the region of the connection opening 36 a pressure of 10 -4 to 10 -7 , preferably 10 -5 to 10 -6 , and im Area of the connection opening 37, a pressure of about 10 -2 to 10 -4 mbar is generated.
- a high pumping speed is to be generated (eg 200 l / s).
- the subsequent, two-stage Holweck pumping stage (29, 30, 29, 31) ensures a high prevacuum resistance, so that usually the pumping speed of the second pumping stage is independent of the fore-vacuum pressure.
- FIG. 2 shows a single-flow friction vacuum pump 1, their pump-active surfaces exclusively of stator blades 41 and rotor blades 42 are formed (Turbomolecular vacuum pump).
- the second, outer housing 19 carries frontally the flange 43, which is the front side arranged connecting opening 44 surrounds. To one Pump 1 of this type with a different type of flange and / or flange size, it is only necessary to dismantle the outer housing 19 and to be replaced by a housing 19 with the desired flange.
- FIG. 3 shows a device 51 according to the invention with chambers to be evacuated 52, 53, 54 and a push-in Unit 27, as described for Figure 1 has been.
- the housing of the device e.g. a particle beam device - Is essentially in one piece formed and designated 55.
- the essence of the present idea is that a largely functional unit (inset, cartridge) a friction vacuum pump in one of the application adapted housing is releasably supported. That so far described inner housing 18 has the task, the Function elements of the friction vacuum pump to the desired Unit to summarize. Instead of the housing Other components - e.g. Tie rods, brackets or the like - be present who fulfill this task. It is essential that for the fulfillment of the Functions of the usual housing in the subject the invention provides two components 18 and 19,55 are.
- the two components of two are concentric Housing formed, of which the inner of the centering, Assignment and mounting of chassis 5, stator 3 and rotor 4 is used, which thereby the already operational, form independent drawer from the outer casing.
- the outer housing 19, 55 seals the vacuum pump to the outside and serves to connect with those to be evacuated Chambers, whether via connecting flanges or in that it already forms part of the facility with the chambers to be evacuated.
- tie rod system It is particularly useful in the inner slot the to replace inner housings with a tie rod system. This allows a more compact design of the interior Slot. In addition, held together by the tie rod system Components are made easier. For example, the tie rods take over the centering of stator rings, so that they themselves are no longer with Centering must be equipped.
- FIGS. 4 and 5 show exemplary embodiments (FIG 4: longitudinal section through an insert 27; FIG. 5: Cross section through a slot 27 at the level of the opening 35) for an inner drawer 27 with a tie rod system 61.
- This comprises three to six (or more) tie rods 62 as well as holes and threads in the components (Chassis 5, stator 3) coming from the tie rod system 61 a unit to be joined together.
- Figures 4 and 5 show that the opening 35 extends over the entire circumference of the insert 27 and only interrupted by the tie rods 62.
- the access of the gas molecules to the inlet 29 of the pumping stage 13 is characterized almost unhindered free.
- FIG. 4 makes the structure particularly advantageous Recognize tie rod 62. They are designed in two parts.
- the pre-vacuum side tie rod sections 63 with their heads 64 pass through the stator of the pumping stage 13 and the outer stator element 33 of the pumping stage 14. Their threaded ends are in the Screwed flange 21 of the chassis 5.
- the length of the Heads 64 determines the axial extent of the opening 35.
- Heads 64 each provided with an internal thread, in the respective high-vacuum-side tie rod sections 65 can be screwed.
- Their heads 66 are the highest Statorring the pumping stage 13 on. In other enforce they cause the stator rings of the pumping stage 12 and thereby not only one in the screwed state Connection of the high vacuum 12 with the rest Stages 13 and 14 but also a centering of Stator.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Non-Positive Displacement Air Blowers (AREA)
Description
- Figur 1 eine mit drei Pumpstufen ausgerüstete Reibungsvakuumpumpe nach der Erfindung,
- Figur 2 eine Turbomolekularvakuumpumpe nach der Erfindung,
- Figur 3 eine mit einer Reibungsvakuumpumpe nach der Erfindung ausgerüstete Einrichtung und
- Figuren 4 und 5 Schnitte durch eine Ausführung des Einschubs mit Zugankern.
Claims (20)
- Turbomolekularvakuumpumpe (1) mit einem Chassis (5), mit einem Stator (3), der Statorringe aufweist, mit einem Rotor (4), der Rotorschaufeln aufweist und sich über eine Welle (9) im Chassis (5) abstützt, mit einem ersten inneren Bauteil (18, 61), das der Zusammenfassung von Statorringen dient, und mit einem zweiten äußeren Gehäusebauteil (19), das am Chassis (5) befestigt ist, Stator (3) und Rotor (4) aufnimmt und mit einem Anschluss (39) für eine zu evakuierende Kammer ausgerüstet ist, dadurch gekennzeichnet, dass das erste innere Bauteil (18, 61) Chassis (5), Stator (3) und Rotor (4) zu einem Einschub zusammenfügt, der in dem äußeren Gehäusebauteil lösbar befestigt ist.
- Pumpe nach Anspruch 1, dadurch gekennzeichnet, dass das erste innere Bauelement ein inneres Gehäuse (18) ist.
- Pumpe nach Anspruch 2, dadurch gekennzeichnet, dass sich im Bereich der Hochvakuumseite der Pumpe zwischen innerem Gehäuse (18) und äußerem Gehäuse (19, 55) eine Dichtung (24) befindet.
- Pumpe nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass inneres und äußeres Gehäuse (18; 19, 55) im Bereich der Vorvakuumseite der Pumpe mit Flanschen ausgerüstet sind, die am Chassis (5) lösbar befestigt sind.
- Pumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das innere Gehäuse (18) hochvakuumseitig mit einem nach innen gerichteten Rand (20) ausgerüstet ist.
- Pumpe nach Anspruch 5, dadurch gekennzeichnet, dass der nach innen gerichtete Rand (20) einen ersten, hochvakuumseitig angeordneten Statorring bildet.
- Reibungsvakuumpumpe nach einem der vorhergehenden Ansprüche 2 bis 6, dadurch gekennzeichnet, dass der hochvakuumseitigen Stirnseite des inneren Gehäuses (18) eine stufenförmige Verjüngung (23) der Bohrung (22) des äußeren Gehäuses (19, 55) zugeordnet ist.
- Pumpe nach den Ansprüchen 3 und 7, dadurch gekennzeichnet, dass sich zwischen der Stirnseite des inneren Gehäuses (18) und der von der Durchmesserverjüngung gebildeten Stufe (23) des äußeren Gehäuses (19, 55) ein O-Ring (24) befindet.
- Pumpe nach einem der vorhergehenden Ansprüche 2 bis 8, dadurch gekennzeichnet, dass das hochvakuumseitig gelegene Ende des inneren Gehäuses (18) eine Durchtrittsöffnung (28) für die in die Pumpe eintretenden Gase bildet.
- Pumpe nach Anspruch 9, dadurch gekennzeichnet, dass das innere Gehäuse (18) mit mindestens einer weiteren stromabwärts gelegenen Durchtrittsöffnung (35) für eintretende Gase ausgerüstet ist.
- Pumpe nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass der Anschlussflansch (39) seitlich am zweiten Gehäuse (19) angeordnet ist.
- Pumpe nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass im äußeren Gehäuse (19) ein oder mehrere Verbindungskanäle ausgebildet sind, die die Verbindung zwischen den Durchtrittsöffnungen (28, 35) und einer oder mehreren zu evakuierenden Kammern (52 bis 55) herstellen.
- Pumpe nach Anspruch 1, dadurch gekennzeichnet, dass das erste innere Bauelement von einem Zugankersystem (61) gebildet wird.
- Pumpe nach Anspruch 13, dadurch gekennzeichnet, dass das Zugankersystem (61) mehrere Zuganker (62) umfasst, die den Stator (3) mit dem Chassis (5) verbinden.
- Pumpe nach Anspruch 14, dadurch gekennzeichnet, dass die Zuganker (62) die Statorringe durchsetzen.
- Pumpe nach einem der Ansprüche 13 bis 15, dadurch gekennzeichnet, dass die Zuganker (62) zweiteilig ausgebildet sind und jeweils aus einem vorvakuumseitigen Zugankerabschnitt (63) mit Kopf (64) und einem hochvakuumseitigen Zugankerabschnitt (65) mit Kopf (66) bestehen.
- Pumpe nach Anspruch 16, dadurch gekennzeichnet, dass die Länge des Kopfes (64) des vorvakuumseitigen Zugankerabschnittes (63) die axiale Ausdehnung einer Durchtrittsöffnung (35) zwischen Hochvakuumstufe (12) und Vorvakuumstufe (13 bzw. 13, 14) bestimmt.
- Pumpe nach einem der Ansprüche 16 oder 17, dadurch gekennzeichnet, dass die Köpfe (64) der vorvakuumseitigen Zugstangenabschnitte (63) jeweils stirnseitig mit einem Gewinde ausgerüstet sind, in das die hochvakuumseitigen Zugankerabschnitte (65) einschraubbar sind.
- Einrichtung (51) mit einem Gehäuse (55), in dem sich mindestens eine evakuierbare Kammer (52, 53, 54) befindet, sowie mit einer ein Gehäuse aufweisende Turbomolekularvakuumpumpe (1) nach einem der vorhergehenden Ansprüche, welche mit der zu evakuierenden Kammer verbunden ist, dadurch gekennzeichnet, dass das Gehäuse (55) der Einrichtung (51) eine Bohrung (22) aufweist, innerhalb der sich der Einschinb (27) der Turbomolekularvakuumpumpe (1) befindet.
- Einrichtung nach Anspruch 19, dadurch gekennzeichnet, dass mindestens zwei Kammern (52, 53, 54) vorgesehen sind, dass die Turbomolekularvakuumpumpe (1) mehrstufig ausgebildet ist, dass mindestens zwei Kammern (52, 53, 54) seitlich neben der Reibungsvakuumpumpe (1) angeordnet sind und die Kammern über Durchtrittsöffnungen im inneren Gehäuse (18) und Verbindungsöffnungen (36, 37) im gemeinsamen Gehäuse (55) mit dem Einlass (26, 29) von Turbomolekularpumpenstufen (12, 13, 14) verbunden sind.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03029746.9A EP1422423B2 (de) | 1998-05-26 | 1999-03-27 | Gerät mit evakuierbarer Kammer |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823270 | 1998-05-26 | ||
DE19823270 | 1998-05-26 | ||
DE19901340 | 1999-01-15 | ||
DE19901340.3A DE19901340B4 (de) | 1998-05-26 | 1999-01-15 | Reibungsvakuumpumpe mit Chassis, Rotor und Gehäuse sowie Einrichtung, ausgerüstet mit einer Reibungsvakuumpumpe dieser Art |
PCT/EP1999/002122 WO1999061799A1 (de) | 1998-05-26 | 1999-03-27 | Reibungsvakuumpumpe mit chassis, rotor und gehäuse sowie einrichtung, ausgerüstet mit einer reibungsvakuumpumpe dieser art |
Related Child Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03029746.9A Division EP1422423B2 (de) | 1998-05-26 | 1999-03-27 | Gerät mit evakuierbarer Kammer |
EP03029746.9A Division-Into EP1422423B2 (de) | 1998-05-26 | 1999-03-27 | Gerät mit evakuierbarer Kammer |
EP03029746.9 Division-Into | 2003-12-23 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1090231A1 EP1090231A1 (de) | 2001-04-11 |
EP1090231B1 true EP1090231B1 (de) | 2005-10-05 |
EP1090231B2 EP1090231B2 (de) | 2015-07-08 |
Family
ID=26046389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99917896.5A Expired - Lifetime EP1090231B2 (de) | 1998-05-26 | 1999-03-27 | Reibungsvakuumpumpe mit chassis, rotor und gehäuse sowie einrichtung, ausgerüstet mit einer reibungsvakuumpumpe dieser art |
Country Status (5)
Country | Link |
---|---|
US (1) | US6457954B1 (de) |
EP (1) | EP1090231B2 (de) |
JP (1) | JP4520636B2 (de) |
DE (2) | DE59912626D1 (de) |
WO (1) | WO1999061799A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8529218B2 (en) | 2007-02-28 | 2013-09-10 | Thermo Fisher Scientific (Bremen) Gmbh | Vacuum pump having nested chambers associated with a mass spectrometer |
DE202013003855U1 (de) * | 2013-04-25 | 2014-07-28 | Oerlikon Leybold Vacuum Gmbh | Untersuchungseinrichtung sowie Multi-Inlet-Vakuumpumpe |
US8790070B2 (en) | 2008-08-28 | 2014-07-29 | Oerlikon Leybold Vacuum Gmbh | Stator-rotor arrangement for a vacuum pump and vacuum pump |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10308420A1 (de) * | 2003-02-27 | 2004-09-09 | Leybold Vakuum Gmbh | Testgaslecksuchgerät |
ITTO20030421A1 (it) * | 2003-06-05 | 2004-12-06 | Varian Spa | Pompa da vuoto compatta |
GB0409139D0 (en) * | 2003-09-30 | 2004-05-26 | Boc Group Plc | Vacuum pump |
GB0322883D0 (en) * | 2003-09-30 | 2003-10-29 | Boc Group Plc | Vacuum pump |
GB0414316D0 (en) * | 2004-06-25 | 2004-07-28 | Boc Group Plc | Vacuum pump |
DE102006020710A1 (de) * | 2006-05-04 | 2007-11-08 | Pfeiffer Vacuum Gmbh | Vakuumpumpe mit Gehäuse |
US20070263477A1 (en) * | 2006-05-11 | 2007-11-15 | The Texas A&M University System | Method for mixing fluids in microfluidic channels |
JP5115622B2 (ja) * | 2008-03-31 | 2013-01-09 | 株式会社島津製作所 | ターボ分子ポンプ |
GB2462804B (en) * | 2008-08-04 | 2013-01-23 | Edwards Ltd | Vacuum pump |
DE102009013244A1 (de) | 2009-03-14 | 2010-09-16 | Pfeiffer Vacuum Gmbh | Anordnung mit Vakuumpumpe |
GB2473839B (en) * | 2009-09-24 | 2016-06-01 | Edwards Ltd | Mass spectrometer |
FR2984972A1 (fr) * | 2011-12-26 | 2013-06-28 | Adixen Vacuum Products | Adaptateur pour pompes a vide et dispositif de pompage associe |
DE202012000611U1 (de) * | 2012-01-21 | 2013-04-23 | Oerlikon Leybold Vacuum Gmbh | Turbomolekularpumpe |
KR102106658B1 (ko) * | 2012-09-26 | 2020-05-04 | 에드워즈 가부시키가이샤 | 로터, 및, 이 로터를 구비한 진공 펌프 |
GB201314841D0 (en) | 2013-08-20 | 2013-10-02 | Thermo Fisher Scient Bremen | Multiple port vacuum pump system |
EP3112689B1 (de) * | 2015-07-01 | 2018-12-05 | Pfeiffer Vacuum GmbH | Splitflow-vakuumpumpe |
JP7196763B2 (ja) * | 2018-10-25 | 2022-12-27 | 株式会社島津製作所 | ターボ分子ポンプおよび質量分析装置 |
EP3564538B1 (de) * | 2019-02-20 | 2021-04-07 | Pfeiffer Vacuum Gmbh | Vakuumsystem und verfahren zur herstellung eines solchen |
GB2592043A (en) * | 2020-02-13 | 2021-08-18 | Edwards Ltd | Axial flow vacuum pump |
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-
1999
- 1999-03-27 US US09/700,483 patent/US6457954B1/en not_active Expired - Lifetime
- 1999-03-27 WO PCT/EP1999/002122 patent/WO1999061799A1/de active IP Right Grant
- 1999-03-27 EP EP99917896.5A patent/EP1090231B2/de not_active Expired - Lifetime
- 1999-03-27 DE DE59912626T patent/DE59912626D1/de not_active Expired - Lifetime
- 1999-03-27 JP JP2000551160A patent/JP4520636B2/ja not_active Expired - Lifetime
- 1999-03-27 DE DE59912629T patent/DE59912629D1/de not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8529218B2 (en) | 2007-02-28 | 2013-09-10 | Thermo Fisher Scientific (Bremen) Gmbh | Vacuum pump having nested chambers associated with a mass spectrometer |
US8858188B2 (en) | 2007-02-28 | 2014-10-14 | Thermo Fisher Scientific (Bremen) Gmbh | Vacuum pump or vacuum apparatus with vacuum pump |
US8790070B2 (en) | 2008-08-28 | 2014-07-29 | Oerlikon Leybold Vacuum Gmbh | Stator-rotor arrangement for a vacuum pump and vacuum pump |
DE202013003855U1 (de) * | 2013-04-25 | 2014-07-28 | Oerlikon Leybold Vacuum Gmbh | Untersuchungseinrichtung sowie Multi-Inlet-Vakuumpumpe |
Also Published As
Publication number | Publication date |
---|---|
WO1999061799A1 (de) | 1999-12-02 |
DE59912629D1 (de) | 2006-02-16 |
JP2002516959A (ja) | 2002-06-11 |
EP1090231A1 (de) | 2001-04-11 |
JP4520636B2 (ja) | 2010-08-11 |
EP1090231B2 (de) | 2015-07-08 |
US6457954B1 (en) | 2002-10-01 |
DE59912626D1 (de) | 2006-02-16 |
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