GB1228004A - - Google Patents

Info

Publication number
GB1228004A
GB1228004A GB1228004DA GB1228004A GB 1228004 A GB1228004 A GB 1228004A GB 1228004D A GB1228004D A GB 1228004DA GB 1228004 A GB1228004 A GB 1228004A
Authority
GB
United Kingdom
Prior art keywords
signal
network
capacitor
frequency
varied
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
Other languages
English (en)
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 filed Critical
Publication of GB1228004A publication Critical patent/GB1228004A/en
Expired 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
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/044—Active magnetic bearings
    • F16C32/0444—Details of devices to control the actuation of the electromagnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/20—Electromagnets; Actuators including electromagnets without armatures
    • H01F7/206—Electromagnets for lifting, handling or transporting of magnetic pieces or material

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
GB1228004D 1968-05-27 1968-05-27 Expired GB1228004A (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2526568 1968-05-27

Publications (1)

Publication Number Publication Date
GB1228004A true GB1228004A (it) 1971-04-15

Family

ID=10224911

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1228004D Expired GB1228004A (it) 1968-05-27 1968-05-27

Country Status (1)

Country Link
GB (1) GB1228004A (it)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3638093A (en) * 1971-04-19 1972-01-25 Rohr Corp Magnetic suspension and propulsion system
FR2370661A1 (fr) * 1976-11-16 1978-06-09 Goeppinger Magnetfabrik Installation de transport
EP1439012A1 (en) * 1997-09-24 2004-07-21 Mitsubishi Heavy Industries, Ltd. Automatic plate bending system using high frequency induction heating
EP1594211A3 (en) * 2004-05-06 2006-01-11 ROLLS-ROYCE plc Electromagnetic bearing with two power sources having distinct voltage; Demagnetising permanent magnets upon failure in an electrical machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3638093A (en) * 1971-04-19 1972-01-25 Rohr Corp Magnetic suspension and propulsion system
DE2219154A1 (de) * 1971-04-19 1972-11-09 Rohr Corp., Chula Vista, Calif. (V.StA.) Magnetische Schwebe- und Antriebseinrichtung
FR2370661A1 (fr) * 1976-11-16 1978-06-09 Goeppinger Magnetfabrik Installation de transport
EP1439012A1 (en) * 1997-09-24 2004-07-21 Mitsubishi Heavy Industries, Ltd. Automatic plate bending system using high frequency induction heating
EP1594211A3 (en) * 2004-05-06 2006-01-11 ROLLS-ROYCE plc Electromagnetic bearing with two power sources having distinct voltage; Demagnetising permanent magnets upon failure in an electrical machine
US7138739B2 (en) 2004-05-06 2006-11-21 Rolls-Royce Plc Magnetic bearing
US7215054B2 (en) 2004-05-06 2007-05-08 Rolls-Royce Plc Magnetic bearing

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Legal Events

Date Code Title Description
PS Patent sealed
PE Patent expired