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WO2008108063A1 - Motor-integrated magnetic bearing device - Google Patents

Motor-integrated magnetic bearing device Download PDF

Info

Publication number
WO2008108063A1
WO2008108063A1 PCT/JP2008/000337 JP2008000337W WO2008108063A1 WO 2008108063 A1 WO2008108063 A1 WO 2008108063A1 JP 2008000337 W JP2008000337 W JP 2008000337W WO 2008108063 A1 WO2008108063 A1 WO 2008108063A1
Authority
WO
WIPO (PCT)
Prior art keywords
motor
magnetic bearing
bearing device
rolling bearings
integrated magnetic
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
PCT/JP2008/000337
Other languages
French (fr)
Japanese (ja)
Inventor
Takayoshi Ozaki
Kenichi Suzuki
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.)
NTN Corp
Original Assignee
NTN Corp
NTN Toyo Bearing Co 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
Priority claimed from JP2007051016A external-priority patent/JP4969272B2/en
Priority claimed from JP2007126711A external-priority patent/JP2008283811A/en
Application filed by NTN Corp, NTN Toyo Bearing Co Ltd filed Critical NTN Corp
Publication of WO2008108063A1 publication Critical patent/WO2008108063A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F16C39/00—Relieving load on bearings
    • F16C39/06—Relieving load on bearings using magnetic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
    • F02C6/10—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
    • F02C6/12—Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure
    • 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
    • F04D25/024—Units comprising pumps and their driving means the driving means being assisted by a power recovery turbine
    • 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
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0653—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the motor having a plane air gap, e.g. disc-type
    • 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
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F04D29/058—Bearings magnetic; electromagnetic
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
    • 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
    • F16C37/00—Cooling of bearings
    • F16C37/005—Cooling of bearings of 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
    • F16C37/00—Cooling of bearings
    • F16C37/007—Cooling of bearings of rolling bearings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/09—Structural association with bearings with magnetic bearings
    • 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
    • F05D2220/00—Application
    • F05D2220/40—Application in turbochargers
    • 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
    • F05D2240/00—Components
    • F05D2240/50—Bearings
    • F05D2240/51—Magnetic
    • 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
    • F05D2240/00—Components
    • F05D2240/50—Bearings
    • F05D2240/51—Magnetic
    • F05D2240/515—Electromagnetic
    • 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
    • F16C2362/00—Apparatus for lighting or heating
    • F16C2362/52—Compressors of refrigerators, e.g. air-conditioners
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/083—Structural association with bearings radially supporting the rotary shaft at both ends of the rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1823—Rotary generators structurally associated with turbines or similar engines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

A motor-integrated magnetic bearing device in which the long term durability of rolling bearings under a thrust load is improved, which is compact and can cope with high-speed rotation, and in which the motor can be cooled by a simple structure. The motor-integrated magnetic bearing device supports a main shaft (13) on which a rotor (28a) of the motor (28), a compressor impeller (6a), and a turbine impeller (7a) are installed. The bearing device has rolling bearings (15, 16) and a magnetic bearing. The rolling bearings (15, 16) support a radial load, and the magnetic bearing supports either or both of an axial load and a bearing preload. An electromagnet (17) forming the magnetic bearing is mounted on a spindle housing (14) so as to face without contact a thrust plate (13a) provided on the main shaft (13). The bearing device further has a motor cooling circuit (41) penetrating through that portion of a spindle housing (14) in which a motor (28) is placed, and the motor cooling circuit (41) is provided in a refrigerant flow path of a refrigeration device in which a compressor (6), which has the compressor impeller (6a), and an expansion turbine (7), which has the turbine impeller (7a), are arranged.
PCT/JP2008/000337 2007-03-01 2008-02-26 Motor-integrated magnetic bearing device Ceased WO2008108063A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007051016A JP4969272B2 (en) 2007-03-01 2007-03-01 Motor-integrated magnetic bearing device
JP2007-051016 2007-03-01
JP2007126711A JP2008283811A (en) 2007-05-11 2007-05-11 Motor-integrated magnetic bearing device
JP2007-126711 2007-05-11

Publications (1)

Publication Number Publication Date
WO2008108063A1 true WO2008108063A1 (en) 2008-09-12

Family

ID=39737961

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/000337 Ceased WO2008108063A1 (en) 2007-03-01 2008-02-26 Motor-integrated magnetic bearing device

Country Status (1)

Country Link
WO (1) WO2008108063A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017522508A (en) * 2014-06-27 2017-08-10 サーモダイン・エスエイエス Cooling system for magnetic axial bearings
WO2017212713A1 (en) * 2016-06-07 2017-12-14 株式会社Ihi Rotary machine
WO2020106879A1 (en) 2018-11-19 2020-05-28 Smart E, Llc Lubrication-free centrifugal compressor
EP4328454A1 (en) * 2022-08-22 2024-02-28 Hamilton Sundstrand Corporation Rotor integrated axial flux electric motor

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62115520U (en) * 1986-01-14 1987-07-22
JPH08242557A (en) * 1995-03-01 1996-09-17 Sawafuji Electric Co Ltd Cooling structure of high-speed rotating machine
JPH08261237A (en) * 1995-03-17 1996-10-08 Aisin Seiki Co Ltd Gas turbine engine
JPH11503223A (en) * 1995-04-05 1999-03-23 ロートフロー・コーポレイション Cooling system
JP2002095209A (en) * 2000-09-14 2002-03-29 Mitsubishi Heavy Ind Ltd Flywheel device for power storage
JP2003065621A (en) * 2001-08-24 2003-03-05 Shimadzu Corp Cooling system
JP2005312272A (en) * 2004-04-26 2005-11-04 Mitsubishi Heavy Ind Ltd Turbo refrigerator and motor for the turbo refrigerator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62115520U (en) * 1986-01-14 1987-07-22
JPH08242557A (en) * 1995-03-01 1996-09-17 Sawafuji Electric Co Ltd Cooling structure of high-speed rotating machine
JPH08261237A (en) * 1995-03-17 1996-10-08 Aisin Seiki Co Ltd Gas turbine engine
JPH11503223A (en) * 1995-04-05 1999-03-23 ロートフロー・コーポレイション Cooling system
JP2002095209A (en) * 2000-09-14 2002-03-29 Mitsubishi Heavy Ind Ltd Flywheel device for power storage
JP2003065621A (en) * 2001-08-24 2003-03-05 Shimadzu Corp Cooling system
JP2005312272A (en) * 2004-04-26 2005-11-04 Mitsubishi Heavy Ind Ltd Turbo refrigerator and motor for the turbo refrigerator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017522508A (en) * 2014-06-27 2017-08-10 サーモダイン・エスエイエス Cooling system for magnetic axial bearings
WO2017212713A1 (en) * 2016-06-07 2017-12-14 株式会社Ihi Rotary machine
WO2020106879A1 (en) 2018-11-19 2020-05-28 Smart E, Llc Lubrication-free centrifugal compressor
CN113383164A (en) * 2018-11-19 2021-09-10 智能E有限责任公司 Non-lubricated centrifugal compressor
EP3847372A4 (en) * 2018-11-19 2022-07-27 Smart E, LLC CENTRIFUGAL COMPRESSOR WITHOUT LUBRICATION
EP4328454A1 (en) * 2022-08-22 2024-02-28 Hamilton Sundstrand Corporation Rotor integrated axial flux electric motor

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