EP1236906A1 - Vakuumpumpe - Google Patents
Vakuumpumpe Download PDFInfo
- Publication number
- EP1236906A1 EP1236906A1 EP02001844A EP02001844A EP1236906A1 EP 1236906 A1 EP1236906 A1 EP 1236906A1 EP 02001844 A EP02001844 A EP 02001844A EP 02001844 A EP02001844 A EP 02001844A EP 1236906 A1 EP1236906 A1 EP 1236906A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- components
- vacuum pump
- region
- higher pressure
- gas outlet
- 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
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
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/584—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling or heating the machine
-
- 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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/5853—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps heat insulation or conduction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/60—Fluid transfer
- F05D2260/607—Preventing clogging or obstruction of flow paths by dirt, dust, or foreign particles
Definitions
- the invention relates to a vacuum pump according to the preamble of the 1st claim for protection.
- Such a vacuum pump can be used, for example, as a turbomolecular pump or as Molecular pump according to the Holweck design or as a combination of both types be trained.
- the invention further extends to combinations with pumps, which emit after higher pressure, such as side channel pumps.
- Such vacuum pumps usually consist of a number of stages, which can be designed differently and each have rotor and stator components. These pump-active parts are penetrated by the gas to be pumped.
- the area of application these pumps increasingly extend to processes where large Quantities of easily condensable gases are generated, such as chemical processes or semiconductor manufacturing.
- these gases are easily condensable are, which is all the more the case at low temperatures, or solid deposits to a significant extent. This can cause corrosion and etching processes, which lead to the destruction of individual components or the entire pump.
- This is the case with the pump types considered here particularly critical because their optimal mode of operation only at high speeds and very small distances between stationary and rotating parts can be.
- the invention has for its object to present a construction in which only the components threatened by deposits are specifically heated.
- the arrangement according to the invention ensures that only the critical components, d. H. those who are particularly at risk of deposits are heated up become.
- the heat is generated by thermal connections with high thermal conductivity targeted to the critical points.
- Other components, such as housings, High vacuum connection, bearings and drive are through thermal insulation from the heater except.
- a turbomolecular pump is shown with the housing 1, which has an intake opening 2 in the high vacuum area 8 and a gas outlet opening 3 in the fore vacuum area 10 is provided.
- the rotor shaft 4 is fixed in bearings 5 and 6 and is driven by the motor 7.
- Rotor components 12 are fastened on the rotor shaft 4. These have pump-active structures and, with the stator components 14, which can also be provided with pump-active structures, the pump effect.
- the gases entering the intake opening are generated by the pump-active components fed to the gas outlet opening 3 via an intermediate space 18 on the forevacuum side.
- the space 18 is provided with a heater 20 and over thermal connection with high thermal conductivity with the fore-vacuum stator components 24 connected.
- stator components 24 consist of a material with high thermal conductivity and the contacts between them are formed over a large area. It becomes thermal Clearance from the housing 1 and the high vacuum stator components Thermal resistances 28 separated.
- gas outlet opening 3 can also provided with a heater 21 and by thermal resistances 27 from the adjacent Housing parts must be thermally separated.
- the expression pre-vacuum also includes higher pressure ranges down to atmospheric pressure.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Non-Positive Displacement Air Blowers (AREA)
Abstract
Description
Claims (5)
- Vakuumpumpe mit in einem Gehäuse (1) untergebrachten pumpaktiven Rotorund Statorbauteilen (12, 14), wobei das Gehäuse (1) im Hochvakuumbereich (8) mit einer Ansaugöffnung (2) und im Bereich höheren Druckes (10) mit einer Gasaustrittsöffnung (3) versehen ist und das dem Bereich höheren Druckes zugewandte Ende (16) der pumpaktiven Bauteile über einen Zwischenraum (18) mit der Gasaustrittsführung (3) verbunden ist, dadurch gekennzeichnet, dass der Zwischenraum (18) mit einer Heizung (20) versehen ist und einerseits über thermische Anbindung mit hoher Wärmeleitfähigkeit mit den Statorbauteilen (24) im Bereich höheren Druckes verbunden ist sowie andererseits durch Wärmeleitwiderstände (26) thermisch vom Gehäuse (1) getrennt ist.
- Vakuumpumpe nach Anspruch 1, dadurch gekennzeichnet, dass die Gasaustrittsöffnung (3) mit einer Heizung (21) versehen ist.
- Vakuumpumpe nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die thermische Anbindung mit hoher Wärmeleitfähigkeit dadurch hergestellt wird, dass die Statorbauteile (24) selbst aus einem Material mit hoher Wärmeleitfähigkeit bestehen und die Kontakte zwischen ihnen großflächig ausgebildet sind.
- Vakuumpumpe nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die hochvakuumseitigen Statorbauteile durch Wärmeleitwiderstände (28) von den Statorbauteilen im Bereich höheren Druckes thermisch getrennt sind.
- Vakuumpumpe nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Gasaustrittsöffnung (3) durch Wärmeleitwiderstände (27) von den angrenzenden Gehäusebauteilen thermisch getrennt ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10107341 | 2001-02-16 | ||
DE10107341A DE10107341A1 (de) | 2001-02-16 | 2001-02-16 | Vakuumpumpe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1236906A1 true EP1236906A1 (de) | 2002-09-04 |
EP1236906B1 EP1236906B1 (de) | 2010-07-07 |
Family
ID=7674321
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02001844A Expired - Lifetime EP1236906B1 (de) | 2001-02-16 | 2002-01-26 | Turbomolekularpumpe |
Country Status (4)
Country | Link |
---|---|
US (1) | US6699009B2 (de) |
EP (1) | EP1236906B1 (de) |
JP (1) | JP4673538B2 (de) |
DE (2) | DE10107341A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015043962A1 (de) * | 2013-09-24 | 2015-04-02 | Oerlikon Leybold Vacuum Gmbh | Vakuumpumpe |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10142567A1 (de) * | 2001-08-30 | 2003-03-20 | Pfeiffer Vacuum Gmbh | Turbomolekularpumpe |
JP5420323B2 (ja) * | 2009-06-23 | 2014-02-19 | 株式会社大阪真空機器製作所 | 分子ポンプ |
JP6386737B2 (ja) | 2014-02-04 | 2018-09-05 | エドワーズ株式会社 | 真空ポンプ |
JP6390478B2 (ja) * | 2015-03-18 | 2018-09-19 | 株式会社島津製作所 | 真空ポンプ |
EP3339652B1 (de) * | 2016-12-22 | 2020-07-01 | Pfeiffer Vacuum Gmbh | Vakuumpumpe mit einer innenverkleidung zur aufnahme von ablagerungen |
US10655638B2 (en) * | 2018-03-15 | 2020-05-19 | Lam Research Corporation | Turbomolecular pump deposition control and particle management |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0197238A2 (de) * | 1985-03-09 | 1986-10-15 | Leybold Aktiengesellschaft | Gehäuse für eine Turbomolekularvakuumpumpe |
FR2634829A1 (fr) * | 1988-07-27 | 1990-02-02 | Cit Alcatel | Pompe a vide |
EP0451708A2 (de) * | 1990-04-06 | 1991-10-16 | Hitachi, Ltd. | Vakuumpumpe |
US5577883A (en) * | 1992-06-19 | 1996-11-26 | Leybold Aktiengesellschaft | Gas friction vacuum pump having a cooling system |
EP0855517A2 (de) * | 1997-01-24 | 1998-07-29 | Pfeiffer Vacuum GmbH | Vakuumpumpe |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5618167A (en) * | 1994-07-28 | 1997-04-08 | Ebara Corporation | Vacuum pump apparatus having peltier elements for cooling the motor & bearing housing and heating the outer housing |
JP3125207B2 (ja) * | 1995-07-07 | 2001-01-15 | 東京エレクトロン株式会社 | 真空処理装置 |
JP3160504B2 (ja) * | 1995-09-05 | 2001-04-25 | 三菱重工業株式会社 | ターボ分子ポンプ |
DE19724323A1 (de) * | 1997-06-10 | 1998-12-17 | Leybold Vakuum Gmbh | Flanschverbindung |
-
2001
- 2001-02-16 DE DE10107341A patent/DE10107341A1/de not_active Withdrawn
-
2002
- 2002-01-26 EP EP02001844A patent/EP1236906B1/de not_active Expired - Lifetime
- 2002-01-26 DE DE50214516T patent/DE50214516D1/de not_active Expired - Lifetime
- 2002-02-05 JP JP2002028220A patent/JP4673538B2/ja not_active Expired - Fee Related
- 2002-02-13 US US10/075,409 patent/US6699009B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0197238A2 (de) * | 1985-03-09 | 1986-10-15 | Leybold Aktiengesellschaft | Gehäuse für eine Turbomolekularvakuumpumpe |
FR2634829A1 (fr) * | 1988-07-27 | 1990-02-02 | Cit Alcatel | Pompe a vide |
US4929151A (en) * | 1988-07-27 | 1990-05-29 | Societe Anonyme Dite: Alcatel Cit | Vacuum pump |
EP0451708A2 (de) * | 1990-04-06 | 1991-10-16 | Hitachi, Ltd. | Vakuumpumpe |
US5577883A (en) * | 1992-06-19 | 1996-11-26 | Leybold Aktiengesellschaft | Gas friction vacuum pump having a cooling system |
EP0855517A2 (de) * | 1997-01-24 | 1998-07-29 | Pfeiffer Vacuum GmbH | Vakuumpumpe |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015043962A1 (de) * | 2013-09-24 | 2015-04-02 | Oerlikon Leybold Vacuum Gmbh | Vakuumpumpe |
US10221864B2 (en) | 2013-09-24 | 2019-03-05 | Leybold Gmbh | Vacuum pump |
EP3049676B1 (de) | 2013-09-24 | 2019-07-10 | Leybold GmbH | Vakuumpumpe |
Also Published As
Publication number | Publication date |
---|---|
JP2002276586A (ja) | 2002-09-25 |
US6699009B2 (en) | 2004-03-02 |
JP4673538B2 (ja) | 2011-04-20 |
US20020114695A1 (en) | 2002-08-22 |
EP1236906B1 (de) | 2010-07-07 |
DE50214516D1 (de) | 2010-08-19 |
DE10107341A1 (de) | 2002-08-29 |
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