GB1275386A - Disc for a molecular vacuum pump - Google Patents

Disc for a molecular vacuum pump

Info

Publication number
GB1275386A
GB1275386A GB2434/71A GB243471A GB1275386A GB 1275386 A GB1275386 A GB 1275386A GB 2434/71 A GB2434/71 A GB 2434/71A GB 243471 A GB243471 A GB 243471A GB 1275386 A GB1275386 A GB 1275386A
Authority
GB
United Kingdom
Prior art keywords
disc
molecular vacuum
vacuum pump
peripheral flange
slits
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
Application number
GB2434/71A
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.)
Balzers Patent und Beteiligungs AG
Original Assignee
Balzers Patent und Beteiligungs 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 Balzers Patent und Beteiligungs AG filed Critical Balzers Patent und Beteiligungs AG
Publication of GB1275386A publication Critical patent/GB1275386A/en
Expired legal-status Critical Current

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
    • F04D29/02—Selection of particular materials
    • F04D29/023—Selection of particular materials especially adapted for elastic fluid 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
    • 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
    • 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
    • F04D29/544—Blade shapes
    • 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
    • F05D2230/00—Manufacture
    • F05D2230/50—Building or constructing in particular ways
    • F05D2230/54—Building or constructing in particular ways by sheet metal manufacturing

Landscapes

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

Abstract

1275386 Molecular vacuum pumps BALZERS PATENT UND BETEILIGUNGS A G 18 Jan 1971 [10 April 1970] 2434/71 Heading F1C A rotor disc or, as shown, a stator disc for a molecular vacuum pump, comprises a hollow region formed between parallel walls 3, 4, Figs. 1A and 1B, e.g. of sheet titanium, each provided with an annular array of radial slits 5 having inwardly bent lips 6, the slits being angularly staggered relative to each other so that there is no axial line of sight through the disc. The stator disc shown is secured to the pump housing by peripheral flange 1. The rotor disc has no peripheral flange, and the opposed lips are connected in pairs, e.g. by welding, Figs. 2A to 2D (not shown).
GB2434/71A 1970-04-10 1971-01-18 Disc for a molecular vacuum pump Expired GB1275386A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH540470A CH499019A (en) 1970-04-10 1970-04-10 Disc for a turbo-molecular vacuum pump

Publications (1)

Publication Number Publication Date
GB1275386A true GB1275386A (en) 1972-05-24

Family

ID=4293012

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2434/71A Expired GB1275386A (en) 1970-04-10 1971-01-18 Disc for a molecular vacuum pump

Country Status (5)

Country Link
CH (1) CH499019A (en)
DE (1) DE2050555C3 (en)
FR (1) FR2074450A5 (en)
GB (1) GB1275386A (en)
NL (1) NL141612B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1201928A2 (en) * 2000-10-24 2002-05-02 Pfeiffer Vacuum GmbH Disks for a turbo molecular pump
US20140205431A1 (en) * 2013-01-22 2014-07-24 Shimadzu Corporation Vacuum pump
WO2015000700A1 (en) * 2013-07-05 2015-01-08 Oerlikon Leybold Vacuum Gmbh Stator disk for a turbomolecular pump, having with continuous and closed transitions between blades and disk ring

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3507274A1 (en) * 1985-03-01 1986-09-04 Arthur Pfeiffer Vakuumtechnik Wetzlar Gmbh, 6334 Asslar DISC WITH SHOVELS HIGH STABILITY FOR TURBOMOLECULAR PUMPS
EP3034880B1 (en) * 2014-12-15 2019-10-16 Pfeiffer Vacuum Gmbh Rotor assembly for a vacuum pump and method for producing the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1201928A2 (en) * 2000-10-24 2002-05-02 Pfeiffer Vacuum GmbH Disks for a turbo molecular pump
EP1201928A3 (en) * 2000-10-24 2003-04-16 Pfeiffer Vacuum GmbH Disks for a turbo molecular pump
DE10052637B4 (en) * 2000-10-24 2021-03-11 Pfeiffer Vacuum Gmbh 02/16/2001 Discs for a turbo molecular pump
US20140205431A1 (en) * 2013-01-22 2014-07-24 Shimadzu Corporation Vacuum pump
US10161403B2 (en) * 2013-01-22 2018-12-25 Shimadzu Corporation Vacuum pump
WO2015000700A1 (en) * 2013-07-05 2015-01-08 Oerlikon Leybold Vacuum Gmbh Stator disk for a turbomolecular pump, having with continuous and closed transitions between blades and disk ring

Also Published As

Publication number Publication date
DE2050555A1 (en) 1971-10-28
NL141612B (en) 1974-03-15
NL7010096A (en) 1971-10-12
FR2074450A5 (en) 1971-10-01
DE2050555B2 (en) 1973-08-09
CH499019A (en) 1970-11-15
DE2050555C3 (en) 1974-03-14

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee