EP1081387A2 - Vakuumpumpe - Google Patents
Vakuumpumpe Download PDFInfo
- Publication number
- EP1081387A2 EP1081387A2 EP00117868A EP00117868A EP1081387A2 EP 1081387 A2 EP1081387 A2 EP 1081387A2 EP 00117868 A EP00117868 A EP 00117868A EP 00117868 A EP00117868 A EP 00117868A EP 1081387 A2 EP1081387 A2 EP 1081387A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- parallel
- stages
- units
- gas
- 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
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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
- 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
- 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
- F04D19/046—Combinations of two or more different types of pumps
Definitions
- the invention relates to a vacuum pump for conveying gases and for generating of high vacuum according to the preamble of the first claim.
- Combinations of different types of are used to generate high vacuum Vacuum pumps necessary because of the wide pressure range between atmospheric pressure and high vacuum pressure includes several flow areas in which the physical Properties of states and flows of gases each have different laws are subject.
- At least two vacuum pumps have been used to generate high vacuum different types and working methods combined to form a pumping station.
- pumping stations consisting of a turbomolecular pump have proven successful as a high vacuum pump and a rotary vane pump, which works against atmospheric pressure ejects.
- Pumping stations consisting of at least two vacuum pumps, which are used to achieve the required vacuum parameters, such as Pressure ratio and pumping speed are necessary, have the disadvantage that they are complex and take up a lot of space. Every pump requires one own drive system with power supply, monitoring and control as well its own storage system. Connection lines between the pumps with valves and control devices increase the effort.
- Turbomolecular pumps are particularly suitable for generating high and ultra-high vacuum for use in wide areas of technology. However, their area of application is limited to higher pressures, since their mode of operation means that they are only fully effective at low pressures of up to about 10 -3 mbar.
- side channel pumps in multi-stage construction can be used. They work well with turbomolecular pumps and also combine with other types of molecular pumps.
- the rotor parts Both pumps can be accommodated on one shaft, so that both form a structural unit.
- the invention has for its object to develop a vacuum pump which the entire pressure range from atmospheric pressure to high and ultra high vacuum includes.
- the pump should consist of one piece and a compact one Have structure so that the disadvantages described above, which Adhering to pumping stations consisting of several pumps can be avoided. Furthermore, it should have a sufficiently high pressure ratio and pumping speed, to meet the requirements in practical use.
- a reliable one and safe operation is one of the basic requirements.
- the arrangement according to the invention enables the parallel connection of Gaedepumpgen present a compact vacuum pump that is suitable for this is the entire pressure range from atmospheric pressure to high or ultra high vacuum to cover.
- a compact vacuum pump that is suitable for this is the entire pressure range from atmospheric pressure to high or ultra high vacuum to cover.
- the pumping speed at the suction opening can be over the entire pressure range can be used optimally, because the print compatibility can be designed so that that of the preceding pump unit or -stage of gas delivered from the next pumping unit or stage without loss is taken over.
- the vacuum pump shown houses three pump units in a housing 1 14, 16, 18.
- the housing has a gas inlet opening 2 and a gas outlet opening 4 provided.
- the pump units consist of rotating and fixed ones gas-producing components.
- the rotating components are on a shaft 6 in the axial Direction attached in a row.
- a drive system is required to operate the shaft 8 and bearing elements 10 and 12.
- the fixed components are with the housing 1 connected.
- the pump unit 14 facing the gas inlet opening is a turbomolecular pump educated.
- the pump unit 16 following in the direction of the gas flow consists of a plurality of subunits 16a, 16b and 16c. These each have one or more Molecular pump stages of the Gaede type, hereinafter referred to as Gaede stages, on.
- the gate stages are connected in parallel within the subunits. This means that connecting elements 34a for the subunit 16a or 34b for the sub-unit 16b the input sides and on the other side the output sides of the gate stages so that a parallel gas flow in the individual subunits is made possible.
- the subunit 16a from four parallel pumping stages, the subunit 16b from two parallel pumping stages and the subunit 16c from two individual, series-connected stages.
- the subunits are through fasteners 36a, 36b and 36c joined together so that the output side one subunit with the input side of the following subunit connected is.
- the pump unit facing the gas outlet opening is multi-stage Side channel pump trained.
- the pump units 14 and 16 are via connection channels 32 and the pump units 16 and 18 interconnected in series as connecting channels 38 Subunits 16a, 16b, 16c. Via a line 42, the pump unit 18 is connected to the Gas outlet port connected.
- the amount of gas sucked in on the high vacuum side via the gas inlet opening 2 is compressed by the turbomolecular pump unit 14 and via the connecting lines 32 continues to the second pump unit 16.
- the first sub-unit 16a consists of four levels, which work in parallel to further funding take. Because several gate stages are connected in parallel, the total amount of gas delivered and compressed by the turbomolecular pump become. The amount of gas is further compressed in subunit 16a, so that two parallel gate levels are sufficient for the second subunit 16b, to continue to pump and compress the entire amount of gas until finally a level of subdivision 16c is sufficient for the promotion.
- the to the last channel stage connecting side channel pump can now the amount of gas without Promote loss further and compress to high pressure.
- the combination of the pump units can vary depending on the application and vacuum technology Requirements vary. So only one combination can be used for some applications a turbomolecular pump with the pump unit 16, consisting of gaed stages, be enough. For other applications, a combination of Gaesteeufen and side channel pump meet the requirements.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Non-Positive Displacement Air Blowers (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Electrophonic Musical Instruments (AREA)
Abstract
Description
Claims (4)
- Vakuumpumpe, bestehend aus mehreren Pumpeinheiten (14, 16, 18), welche in einem Gehäuse (1) mit Gäseinlassöffnung (2) und Gasauslassöffnung (4) untergebracht sind, wobei die Pumpeinheiten aus rotierenden und feststehenden gasfördernden Bauteilen gebildet werden und die rotierenden Bauteile auf einer Welle (6) mit Antriebsanordnung (8) und Lagerelementen (10, 12) angebracht sind und die feststehenden Bauteile mit dem Gehäuse (1) verbunden sind, dadurch gekennzeichnet, dass mindestens eine der Pumpeinheiten (16) aus mehreren parallel geschalteten Molekularpumpstufen (16a) nach der Bauart von Gaede besteht, wobei die Molekularpumpstufen (16a) in axialer Richtung hintereinander angeordnet sind und durch gemeinsame Verbindungskanäle (34) so miteinander verbunden sind, dass eine parallele Förderung bewirkt wird.
- Vakuumpumpe nach Anspruch 1, dadurch gekennzeichnet, dass mehrere Pumpeinheiten (16a, 16b, 16c), welche aus einer oder mehreren parallel geschalteten Pumpstufen nach der Bauart von Gaede bestehen, hintereinander geschaltet sind.
- Vakuumpumpe nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die der Gaseintrittsöffnung (2) zugewandte Pumpeinheit eine Turbomolekularpumpe ist.
- Vakuumpumpe nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die der Gasauslassöffnung (4) zugewandte Pumpeinheit (18) eine Seitenkanalpumpe ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19942410A DE19942410A1 (de) | 1999-09-06 | 1999-09-06 | Vakuumpumpe |
DE19942410 | 1999-09-06 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1081387A2 true EP1081387A2 (de) | 2001-03-07 |
EP1081387A3 EP1081387A3 (de) | 2002-04-17 |
EP1081387B1 EP1081387B1 (de) | 2009-03-18 |
Family
ID=7920926
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00117868A Expired - Lifetime EP1081387B1 (de) | 1999-09-06 | 2000-08-19 | Vakuumpumpe |
Country Status (5)
Country | Link |
---|---|
US (1) | US6464451B1 (de) |
EP (1) | EP1081387B1 (de) |
JP (1) | JP2001090690A (de) |
AT (1) | ATE426098T1 (de) |
DE (2) | DE19942410A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2064448B2 (de) † | 2006-09-22 | 2021-03-24 | Edwards Limited | Vakuumpumpe |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10114585A1 (de) * | 2001-03-24 | 2002-09-26 | Pfeiffer Vacuum Gmbh | Vakuumpumpe |
US7171786B2 (en) * | 2003-12-01 | 2007-02-06 | Tapco International Corporation | Window well |
EP2027015A1 (de) * | 2006-06-12 | 2009-02-25 | Mag Aerospace Industries, Inc. | Regenerativer vakuum-generator für flugzeuge und andere fahrzeuge |
DE102007010068A1 (de) | 2007-02-28 | 2008-09-04 | Thermo Fisher Scientific (Bremen) Gmbh | Vakuumpumpe oder Vakuumapparatur mit Vakuumpumpe |
WO2009142905A1 (en) | 2008-05-20 | 2009-11-26 | Sundew Technologies, Llc | Deposition method and apparatus |
US8152442B2 (en) * | 2008-12-24 | 2012-04-10 | Agilent Technologies, Inc. | Centripetal pumping stage and vacuum pump incorporating such pumping stage |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3969039A (en) * | 1974-08-01 | 1976-07-13 | American Optical Corporation | Vacuum pump |
US5238362A (en) * | 1990-03-09 | 1993-08-24 | Varian Associates, Inc. | Turbomolecular pump |
WO1996001373A1 (fr) * | 1994-07-06 | 1996-01-18 | Jiguo Chu | Pompe moleculaire a canaux d'aspiration multiples |
EP0874159A2 (de) * | 1993-05-03 | 1998-10-28 | Leybold Vakuum GmbH | Reibungsvakuumpumpe mit einer Gaedepumpenstufe |
DE19848406A1 (de) * | 1997-10-21 | 1999-05-20 | Varian Associates | Molekularpumpe mit gerippter Rotorkonstruktion |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1809902C3 (de) * | 1968-11-20 | 1973-11-15 | Arthur Pfeiffer-Vakuumtechnik Gmbh, 6330 Wetzlar | Mehrstufige Turbo Molekularhoch vakuumpumpe |
US3628894A (en) * | 1970-09-15 | 1971-12-21 | Bendix Corp | High-vacuum mechanical pump |
DE2354046A1 (de) * | 1973-10-29 | 1975-05-07 | Battelle Institut E V | Elektrisch angetriebene turbomolekularvakuumpumpe |
JPS6419198A (en) * | 1987-07-15 | 1989-01-23 | Hitachi Ltd | Vacuum pump |
DE3919529C2 (de) * | 1988-07-13 | 1994-09-29 | Osaka Vacuum Ltd | Vakuumpumpe |
DE4331589C2 (de) * | 1992-12-24 | 2003-06-26 | Pfeiffer Vacuum Gmbh | Vakuumpumpsystem |
GB9318801D0 (en) * | 1993-09-10 | 1993-10-27 | Boc Group Plc | Improved vacuum pumps |
US5709528A (en) * | 1996-12-19 | 1998-01-20 | Varian Associates, Inc. | Turbomolecular vacuum pumps with low susceptiblity to particulate buildup |
-
1999
- 1999-09-06 DE DE19942410A patent/DE19942410A1/de not_active Withdrawn
-
2000
- 2000-08-19 DE DE50015596T patent/DE50015596D1/de not_active Expired - Lifetime
- 2000-08-19 EP EP00117868A patent/EP1081387B1/de not_active Expired - Lifetime
- 2000-08-19 AT AT00117868T patent/ATE426098T1/de not_active IP Right Cessation
- 2000-09-05 JP JP2000268621A patent/JP2001090690A/ja active Pending
- 2000-09-06 US US09/655,981 patent/US6464451B1/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3969039A (en) * | 1974-08-01 | 1976-07-13 | American Optical Corporation | Vacuum pump |
US5238362A (en) * | 1990-03-09 | 1993-08-24 | Varian Associates, Inc. | Turbomolecular pump |
EP0874159A2 (de) * | 1993-05-03 | 1998-10-28 | Leybold Vakuum GmbH | Reibungsvakuumpumpe mit einer Gaedepumpenstufe |
WO1996001373A1 (fr) * | 1994-07-06 | 1996-01-18 | Jiguo Chu | Pompe moleculaire a canaux d'aspiration multiples |
DE19848406A1 (de) * | 1997-10-21 | 1999-05-20 | Varian Associates | Molekularpumpe mit gerippter Rotorkonstruktion |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2064448B2 (de) † | 2006-09-22 | 2021-03-24 | Edwards Limited | Vakuumpumpe |
Also Published As
Publication number | Publication date |
---|---|
US6464451B1 (en) | 2002-10-15 |
DE50015596D1 (de) | 2009-04-30 |
JP2001090690A (ja) | 2001-04-03 |
ATE426098T1 (de) | 2009-04-15 |
DE19942410A1 (de) | 2001-03-08 |
EP1081387B1 (de) | 2009-03-18 |
EP1081387A3 (de) | 2002-04-17 |
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