EP3845764A3 - Vakuumpumpe und vakuumpumpensystem - Google Patents

Vakuumpumpe und vakuumpumpensystem Download PDF

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Publication number
EP3845764A3
EP3845764A3 EP21166257.2A EP21166257A EP3845764A3 EP 3845764 A3 EP3845764 A3 EP 3845764A3 EP 21166257 A EP21166257 A EP 21166257A EP 3845764 A3 EP3845764 A3 EP 3845764A3
Authority
EP
European Patent Office
Prior art keywords
holweck
vacuum pump
inlet
pump
axial end
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
Application number
EP21166257.2A
Other languages
English (en)
French (fr)
Other versions
EP3845764B1 (de
EP3845764A2 (de
Inventor
Jan Hofmann
Michael Schweighöfer
Martin Lohse
Sebastian Südwasser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pfeiffer Vacuum Technology AG
Original Assignee
Pfeiffer Vacuum Technology AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pfeiffer Vacuum Technology AG filed Critical Pfeiffer Vacuum Technology AG
Priority to EP21166257.2A priority Critical patent/EP3845764B1/de
Publication of EP3845764A2 publication Critical patent/EP3845764A2/de
Publication of EP3845764A3 publication Critical patent/EP3845764A3/de
Application granted granted Critical
Publication of EP3845764B1 publication Critical patent/EP3845764B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F04D19/044—Holweck-type 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • 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
    • F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Positive Displacement Air Blowers (AREA)

Abstract

Die Erfindung betrifft eine Vakuumpumpe, insbesondere Turbomolekularvakuumpumpe, mit einem Einlass, einem Auslass, einem Gehäuse, das einen Pumpenraum für ein vom Einlass zum Auslass in einer Pumprichtung zu pumpendes Gas einschließt, und zumindest einer Holweck-Pumpstufe, die zumindest einen Holweck-Stator und wenigstens einen im Betrieb um eine Rotationsachse rotierenden, zusammen mit dem Holweck-Stator einen Holweck-Pumpbereich begrenzenden Holweck-Rotor umfasst, wobei der Holweck-Pumpbereich bezogen auf die Rotationsachse eine axiale Länge mit einem ersten axialen Ende und einem zweiten axialen Ende aufweist, wobei zumindest ein weiterer Einlass für zu pumpendes Gas vorgesehen ist, der über einen Einlasskanal zu einer im Holweck-Stator ausgebildeten Mündung des weiteren Einlasses in den Holweck-Pumpbereich führt, wobei die Mündung in axialer Richtung zwischen dem ersten axialen Ende und dem zweiten axialen Ende des Holweck-Pumpbereiches gelegen ist, und wobei der Einlasskanal zumindest einen Mündungsabschnitt umfasst, der im Holweck-Stator ausgebildet ist und bis zur Mündung in den Holweck-Pumpbereich führt.
EP21166257.2A 2021-03-31 2021-03-31 Vakuumpumpe und vakuumpumpensystem Active EP3845764B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21166257.2A EP3845764B1 (de) 2021-03-31 2021-03-31 Vakuumpumpe und vakuumpumpensystem

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21166257.2A EP3845764B1 (de) 2021-03-31 2021-03-31 Vakuumpumpe und vakuumpumpensystem

Publications (3)

Publication Number Publication Date
EP3845764A2 EP3845764A2 (de) 2021-07-07
EP3845764A3 true EP3845764A3 (de) 2021-10-27
EP3845764B1 EP3845764B1 (de) 2023-05-03

Family

ID=75339520

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21166257.2A Active EP3845764B1 (de) 2021-03-31 2021-03-31 Vakuumpumpe und vakuumpumpensystem

Country Status (1)

Country Link
EP (1) EP3845764B1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5733104A (en) * 1992-12-24 1998-03-31 Balzers-Pfeiffer Gmbh Vacuum pump system
EP2933497A2 (de) * 2014-04-17 2015-10-21 Pfeiffer Vacuum GmbH Vakuumpumpe
EP3657021A1 (de) * 2018-11-21 2020-05-27 Pfeiffer Vacuum Gmbh Vakuumpumpe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5733104A (en) * 1992-12-24 1998-03-31 Balzers-Pfeiffer Gmbh Vacuum pump system
EP2933497A2 (de) * 2014-04-17 2015-10-21 Pfeiffer Vacuum GmbH Vakuumpumpe
EP3657021A1 (de) * 2018-11-21 2020-05-27 Pfeiffer Vacuum Gmbh Vakuumpumpe

Also Published As

Publication number Publication date
EP3845764B1 (de) 2023-05-03
EP3845764A2 (de) 2021-07-07

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