GB0412667D0 - Vacuum pump impeller - Google Patents

Vacuum pump impeller

Info

Publication number
GB0412667D0
GB0412667D0 GBGB0412667.8A GB0412667A GB0412667D0 GB 0412667 D0 GB0412667 D0 GB 0412667D0 GB 0412667 A GB0412667 A GB 0412667A GB 0412667 D0 GB0412667 D0 GB 0412667D0
Authority
GB
United Kingdom
Prior art keywords
vacuum pump
pump impeller
impeller
vacuum
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.)
Ceased
Application number
GBGB0412667.8A
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.)
BOC Group Ltd
Original Assignee
BOC Group Ltd
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 BOC Group Ltd filed Critical BOC Group Ltd
Priority to GBGB0412667.8A priority Critical patent/GB0412667D0/en
Publication of GB0412667D0 publication Critical patent/GB0412667D0/en
Priority to PCT/GB2005/002005 priority patent/WO2005121561A1/en
Ceased 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
    • 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
    • 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
    • F04D19/048—Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps comprising magnetic bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/0408—Passive magnetic bearings
    • F16C32/0423—Passive magnetic bearings with permanent magnets on both parts repelling each other
    • F16C32/0425—Passive magnetic bearings with permanent magnets on both parts repelling each other for radial load mainly
    • 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
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/13—Refractory metals, i.e. Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W
    • F05D2300/133—Titanium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/44—Centrifugal pumps
    • F16C2360/45—Turbo-molecular pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Non-Positive Displacement Air Blowers (AREA)
GBGB0412667.8A 2004-06-07 2004-06-07 Vacuum pump impeller Ceased GB0412667D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GBGB0412667.8A GB0412667D0 (en) 2004-06-07 2004-06-07 Vacuum pump impeller
PCT/GB2005/002005 WO2005121561A1 (en) 2004-06-07 2005-05-23 Vacuum pump impeller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0412667.8A GB0412667D0 (en) 2004-06-07 2004-06-07 Vacuum pump impeller

Publications (1)

Publication Number Publication Date
GB0412667D0 true GB0412667D0 (en) 2004-07-07

Family

ID=32696785

Family Applications (1)

Application Number Title Priority Date Filing Date
GBGB0412667.8A Ceased GB0412667D0 (en) 2004-06-07 2004-06-07 Vacuum pump impeller

Country Status (2)

Country Link
GB (1) GB0412667D0 (en)
WO (1) WO2005121561A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2722528B1 (en) * 2011-06-16 2018-05-30 Edwards Japan Limited Rotor assembly and vacuum pump there with
DE102013219043A1 (en) * 2013-09-23 2015-03-26 Oerlikon Leybold Vacuum Gmbh Alloys of rotors of a turbomolecular pump
DE202013010195U1 (en) * 2013-11-12 2015-02-18 Oerlikon Leybold Vacuum Gmbh Vacuum pump rotor device and vacuum pump
EP3088746B1 (en) * 2015-04-30 2020-03-11 Pfeiffer Vacuum Gmbh Vacuum pump
GB2601320B (en) * 2020-11-25 2023-04-26 Edwards S R O Rotor assembly for a turbomolecular pump

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1933031C3 (en) * 1969-06-30 1978-10-26 Karl 5170 Juelich Boden Magnetic storage
US4579508A (en) * 1982-04-21 1986-04-01 Hitachi, Ltd. Turbomolecular pump
JP3486000B2 (en) * 1995-03-31 2004-01-13 日本原子力研究所 Screw groove vacuum pump
DE10022061A1 (en) * 2000-05-06 2001-11-08 Leybold Vakuum Gmbh Magnetic bearing arrangement with damping device especially for turbo-compressor, has two bearings each including stator annular magnet stack and rotor annular magnet stack

Also Published As

Publication number Publication date
WO2005121561A1 (en) 2005-12-22

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)