GB0309644D0 - Turbo-molecular vacuum pumps and motors for such pumps - Google Patents

Turbo-molecular vacuum pumps and motors for such pumps

Info

Publication number
GB0309644D0
GB0309644D0 GBGB0309644.3A GB0309644A GB0309644D0 GB 0309644 D0 GB0309644 D0 GB 0309644D0 GB 0309644 A GB0309644 A GB 0309644A GB 0309644 D0 GB0309644 D0 GB 0309644D0
Authority
GB
United Kingdom
Prior art keywords
pumps
turbo
motors
molecular vacuum
vacuum pumps
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
GBGB0309644.3A
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 GBGB0309644.3A priority Critical patent/GB0309644D0/en
Publication of GB0309644D0 publication Critical patent/GB0309644D0/en
Priority to PCT/GB2004/001441 priority patent/WO2004097223A1/en
Priority to US10/554,804 priority patent/US20060210414A1/en
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H02K21/16—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H02K1/148—Sectional cores

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
GBGB0309644.3A 2003-04-28 2003-04-28 Turbo-molecular vacuum pumps and motors for such pumps Ceased GB0309644D0 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GBGB0309644.3A GB0309644D0 (en) 2003-04-28 2003-04-28 Turbo-molecular vacuum pumps and motors for such pumps
PCT/GB2004/001441 WO2004097223A1 (en) 2003-04-28 2004-04-01 Turbomolecular vacuum pump
US10/554,804 US20060210414A1 (en) 2003-04-28 2004-04-01 Turbomolecular vacuum pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0309644.3A GB0309644D0 (en) 2003-04-28 2003-04-28 Turbo-molecular vacuum pumps and motors for such pumps

Publications (1)

Publication Number Publication Date
GB0309644D0 true GB0309644D0 (en) 2003-06-04

Family

ID=9957271

Family Applications (1)

Application Number Title Priority Date Filing Date
GBGB0309644.3A Ceased GB0309644D0 (en) 2003-04-28 2003-04-28 Turbo-molecular vacuum pumps and motors for such pumps

Country Status (3)

Country Link
US (1) US20060210414A1 (en)
GB (1) GB0309644D0 (en)
WO (1) WO2004097223A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900018461A1 (en) * 2019-10-10 2021-04-10 Texa Dynamics S R L "Cooling component for electric motor"

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2337226A1 (en) * 1973-07-21 1975-02-06 Maschf Augsburg Nuernberg Ag VACUUM PUMP WITH A RUNNER MOUNTED INSIDE THEIR HOUSING
DD142409A1 (en) * 1979-03-07 1980-06-18 Karsten Pischang METHOD FOR PRODUCING MAGNETIC BODIES OF ELECTRICAL MACHINES
DE3574311D1 (en) * 1984-09-29 1989-12-21 Toshiba Kk Armature annular core
US5128574A (en) * 1989-04-11 1992-07-07 Canon Kabushiki Kaisha Brushless motor
US5853513A (en) * 1995-02-22 1998-12-29 Mobile Storage Technology Inc. Method of producing a stator for a disk drive motor
JPH10288191A (en) * 1997-04-16 1998-10-27 Daikin Ind Ltd Pump
US5980603A (en) * 1998-05-18 1999-11-09 National Research Council Of Canada Ferrous powder compositions containing a polymeric binder-lubricant blend
US6081059A (en) * 1999-04-21 2000-06-27 Hsu; Chun-Pu Outer-rotor electric motor having inner-stator formed by concentrically wrapping flattened stator elements on stator core
SE519302C2 (en) * 1999-05-11 2003-02-11 Hoeganaes Ab Stator core with teeth made of soft magnetic powder material and stator assembly
US6617740B2 (en) * 2000-12-01 2003-09-09 Petersen Technology Corporation D.C. PM motor and generator with a stator core assembly formed of pressure shaped processed ferromagnetic particles
DE60102349T2 (en) * 2001-01-15 2005-05-04 Atlas Copco Airpower N.V. A method of making a permanent magnet excited rotor for a high speed electric motor

Also Published As

Publication number Publication date
US20060210414A1 (en) 2006-09-21
WO2004097223A1 (en) 2004-11-11

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Legal Events

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