DE10357547A1 - Turbomolecular pump has stator discs configured at outer edge to form greatest possible contact surface with distance rings which space out discs - Google Patents
Turbomolecular pump has stator discs configured at outer edge to form greatest possible contact surface with distance rings which space out discs Download PDFInfo
- Publication number
- DE10357547A1 DE10357547A1 DE10357547A DE10357547A DE10357547A1 DE 10357547 A1 DE10357547 A1 DE 10357547A1 DE 10357547 A DE10357547 A DE 10357547A DE 10357547 A DE10357547 A DE 10357547A DE 10357547 A1 DE10357547 A1 DE 10357547A1
- Authority
- DE
- Germany
- Prior art keywords
- discs
- outer edge
- contact surface
- stator discs
- turbomolecular pump
- 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
- 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
- F04D19/042—Turbomolecular vacuum 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/542—Bladed diffusers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Non-Positive Displacement Air Blowers (AREA)
Abstract
Description
Die Erfindung betrifft eine Turbomolekularpumpe nach dem Oberbegriff des 1. Schutzanspruches.The The invention relates to a turbomolecular pump according to the preamble of the 1st protection claim.
Vakuumpumpen vom Typ einer Turbomolekularpumpe bestehen in der Regel aus einer Anzahl von Stufen, welche jeweils Rotor- und Statorscheiben aufweisen, die abwechselnd hintereinander angeordnet sind. Um optimale Pumpeigenschaften wie maximalen Gasdurchsatz und maximale Kompression zu erreichen, müssen die Rotorscheiben mit hoher Drehzahl umlaufen. Die dazu benötigte Antriebsenergie wird zum Teil in kinetische Energie verwandelt. Ein großer Teil davon wird als Verlustwärme freigesetzt. Weitere unerwünschte Wärmemengen werden frei durch die Lagerung (mechanische Verluste durch Reibung in Kugellagern oder elektrische Verluste in Magnetlagern) oder bei der Kompression von Gasen. Dadurch besteht die Gefahr der Überhitzung von kritischen Bauteilen. Dies muss unbedingt verhindert werden. Dazu ist es notwendig, eine effektive Wärmeabfuhr bereit zu stellen.vacuum pumps The type of turbomolecular pump usually consist of a Number of stages, each having rotor and stator discs, which are arranged alternately one behind the other. For optimal pumping properties how to achieve maximum gas flow and maximum compression have to rotate the rotor disks at high speed. The required drive energy is partly transformed into kinetic energy. A large part this is called heat loss released. More unwanted amounts of heat become free through storage (mechanical losses due to friction in ball bearings or electrical losses in magnetic bearings) or at the compression of gases. This creates the risk of overheating of critical components. This must be prevented at all costs. For this it is necessary to provide an effective heat dissipation.
Die
Wärmeübertragung
im Vakuum von Rotor- auf Statorscheiben erfolgt im Wesentlichen
durch Strahlung. Da sich Rotor- und Statorscheiben großflächig gegenüber stehen,
kann auf diese Weise ein großer
Teil der Wärme
von den Rotorscheiben auf die Statorscheiben übertragen werden. Die Statorscheiben
sind über
Distanzringe mit dem Gehäuse
verbunden (
Der Erfindung liegt die Aufgabe zugrunde, eine Turbomolekularpumpe vorzustellen, bei der die während des Betriebes entstehende Wärme effektiv abgeführt werden kann. Die Konstruktion soll einfach und kostengünstig zu verwirklichen sein.Of the Invention is based on the object to present a turbomolecular pump during the the heat generated by the operation effectively dissipated can be. The design should be simple and inexpensive too to be realized.
Die Aufgabe wird durch die kennzeichnenden Merkmale des 1. Schutzanspruches gelöst. Die Ansprüche 2 und 3 stellen weitere Ausgestaltungsformen der Erfindung dar.The Task is by the characterizing features of the first protection claim solved. The requirements FIGS. 2 and 3 illustrate further embodiments of the invention.
Durch die großflächige Anbindung der Statorscheiben mit den Distanzringen und Gehäusebauteilen wird eine deutlich bessere Wärmeübertragung als bei herkömmlichen Konstruktionen erreicht. Die Wärmeableitung aus der Pumpe wird erheblich gesteigert. Dies führt zu einem höheren Wirkungsgrad und zu einer Verbesserung der Pumpeigenschaft. Die Konstruktion kann mit einfachen Mitteln ohne großen Kostenaufwand verwirklicht werden.By the large area connection the stator discs with the spacer rings and housing components is a clear better heat transfer than at conventional Constructions achieved. The heat dissipation from the pump is significantly increased. This leads to a higher efficiency and to an improvement of the pumping property. The construction can by simple means without big Cost be realized.
Anhand
der
Die
Turbomolekularpumpe ist mit dem Gehäuse
Erfindungsgemäß werden
die Statorscheiben an ihrem äußeren Rand
so ausgebildet, dass sie mit den Distanzringen eine möglichst
große
Kontaktfläche
bilden. Dies geschieht dadurch, dass die Statorscheiben
In
einer weiteren Ausführungsform,
die als Beispiel in
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10357547.2A DE10357547B4 (en) | 2003-12-10 | 2003-12-10 | Turbomolecular pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10357547.2A DE10357547B4 (en) | 2003-12-10 | 2003-12-10 | Turbomolecular pump |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10357547A1 true DE10357547A1 (en) | 2005-07-07 |
DE10357547B4 DE10357547B4 (en) | 2020-04-23 |
Family
ID=34638547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10357547.2A Expired - Fee Related DE10357547B4 (en) | 2003-12-10 | 2003-12-10 | Turbomolecular pump |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10357547B4 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007135883A1 (en) * | 2006-05-19 | 2007-11-29 | Edwards Japan Limited | Vacuum pump |
WO2009028099A1 (en) * | 2007-08-31 | 2009-03-05 | Shimadzu Corporation | Turbo molecular drag pump |
CN107208649A (en) * | 2015-01-30 | 2017-09-26 | 埃地沃兹日本有限公司 | Vavuum pump |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29717764U1 (en) * | 1997-10-06 | 1997-11-20 | Leybold Vakuum Gmbh | Stator for a turbomolecular vacuum pump |
DE19937393A1 (en) * | 1999-08-07 | 2001-02-08 | Leybold Vakuum Gmbh | Stator ring for a turbomolecular vacuum pump |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3722164C2 (en) | 1987-07-04 | 1995-04-20 | Balzers Pfeiffer Gmbh | Turbomolecular pump |
-
2003
- 2003-12-10 DE DE10357547.2A patent/DE10357547B4/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29717764U1 (en) * | 1997-10-06 | 1997-11-20 | Leybold Vakuum Gmbh | Stator for a turbomolecular vacuum pump |
DE19937393A1 (en) * | 1999-08-07 | 2001-02-08 | Leybold Vakuum Gmbh | Stator ring for a turbomolecular vacuum pump |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007135883A1 (en) * | 2006-05-19 | 2007-11-29 | Edwards Japan Limited | Vacuum pump |
JP2007309245A (en) * | 2006-05-19 | 2007-11-29 | Boc Edwards Kk | Vacuum pump |
US8246300B2 (en) | 2006-05-19 | 2012-08-21 | Edwards Japan Limited | Vacuum pump |
WO2009028099A1 (en) * | 2007-08-31 | 2009-03-05 | Shimadzu Corporation | Turbo molecular drag pump |
JP5062257B2 (en) * | 2007-08-31 | 2012-10-31 | 株式会社島津製作所 | Turbo molecular pump |
CN107208649A (en) * | 2015-01-30 | 2017-09-26 | 埃地沃兹日本有限公司 | Vavuum pump |
US20170363101A1 (en) * | 2015-01-30 | 2017-12-21 | Edwards Japan Limited | Vacuum pump |
EP3252314A4 (en) * | 2015-01-30 | 2018-08-22 | Edwards Japan Limited | Vacuum pump |
US10480523B2 (en) | 2015-01-30 | 2019-11-19 | Edwards Japan Limited | Vacuum pump |
Also Published As
Publication number | Publication date |
---|---|
DE10357547B4 (en) | 2020-04-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8110 | Request for examination paragraph 44 | ||
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |