GB956938A - Improvements in or relating to electric motors - Google Patents

Improvements in or relating to electric motors

Info

Publication number
GB956938A
GB956938A GB853162A GB853162A GB956938A GB 956938 A GB956938 A GB 956938A GB 853162 A GB853162 A GB 853162A GB 853162 A GB853162 A GB 853162A GB 956938 A GB956938 A GB 956938A
Authority
GB
United Kingdom
Prior art keywords
flux
magnets
march
permanent magnet
core
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
GB853162A
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.)
Litton Industries Inc
Original Assignee
Litton Industries Inc
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 Litton Industries Inc filed Critical Litton Industries Inc
Publication of GB956938A publication Critical patent/GB956938A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/02—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
    • H02K23/04—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having permanent magnet excitation

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

956,938. Permanent magnet motors. LITTON INDUSTRIES Inc. March 6, 1962 [March 10, 1961], No. 8531/62. Heading H2A. The permanent magnet outer member 11 of a D.C. torque motor, e.g. for gyros, has a continuous low-reluctance path at its outer periphery to prevent outward flux-leakage. The radially polarized magnets 19 are contained wholly within the low-reluctance core 11 and are immediately adjacent each other to facilitate containment of the flux within the core. As shown, the magnets are of semi-circular shape, but they may be of any shape giving a sinusoidal working flux, e.g. triangular or trapezoidal, or composed of graded groups of bar magnets. The outer member may be stator or rotor.
GB853162A 1961-03-10 1962-03-06 Improvements in or relating to electric motors Expired GB956938A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9493561A 1961-03-10 1961-03-10

Publications (1)

Publication Number Publication Date
GB956938A true GB956938A (en) 1964-04-29

Family

ID=22248023

Family Applications (1)

Application Number Title Priority Date Filing Date
GB853162A Expired GB956938A (en) 1961-03-10 1962-03-06 Improvements in or relating to electric motors

Country Status (1)

Country Link
GB (1) GB956938A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2191638B (en) * 1986-06-14 1990-12-19 Dobson Park Ind Magnet assemblies
WO1991007805A1 (en) * 1989-11-14 1991-05-30 The United States Of America, Secretary Of The Army, The Pentagon Permanent magnet structure for use in electric machinery

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2191638B (en) * 1986-06-14 1990-12-19 Dobson Park Ind Magnet assemblies
WO1991007805A1 (en) * 1989-11-14 1991-05-30 The United States Of America, Secretary Of The Army, The Pentagon Permanent magnet structure for use in electric machinery
US5280209A (en) * 1989-11-14 1994-01-18 The United States Of America As Represented By The Secretary Of The Army Permanent magnet structure for use in electric machinery

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