GB760269A - Improvements in electric motors - Google Patents

Improvements in electric motors

Info

Publication number
GB760269A
GB760269A GB1100854A GB1100854A GB760269A GB 760269 A GB760269 A GB 760269A GB 1100854 A GB1100854 A GB 1100854A GB 1100854 A GB1100854 A GB 1100854A GB 760269 A GB760269 A GB 760269A
Authority
GB
United Kingdom
Prior art keywords
stator
rotor
teeth
motor
speed
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
GB1100854A
Inventor
Charles Snowdon
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.)
Short Brothers PLC
Original Assignee
Short Brothers and Harland 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 Short Brothers and Harland Ltd filed Critical Short Brothers and Harland Ltd
Priority to GB1100854A priority Critical patent/GB760269A/en
Publication of GB760269A publication Critical patent/GB760269A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/02—Synchronous motors
    • H02K19/10—Synchronous motors for multi-phase current
    • H02K19/103—Motors having windings on the stator and a variable reluctance soft-iron rotor without windings

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

760,269. Electric motors. SHORT BROS. & HARLAND, Ltd. April 13, 1955 [April 14, 1954], No. 11008/54. Drawings to Specification. Class 35. In an inductor motor for high-frequency polyphase current, the number of teeth on the stator and rotor differ by the pole number of the stator winding, so that the speed of the motor is inversely proportional to the number of stator poles and rotor teeth, the stator and rotor being of moulded ferrite. As described, the stator, which is wound for a two-pole fundamental flux distribution has sixteen teeth while the rotor, which may be wound, has eighteen teeth producing a rotational speed of one-ninth of the supply frequency. The motor is rendered selfstarting by winding the stator to produce a harmonic flux distribution providing a higher pole-number and using the induction motor effect to provide a run-up speed which may be sufficiently close to the synchronous speed to enable it to synchronize.
GB1100854A 1954-04-14 1954-04-14 Improvements in electric motors Expired GB760269A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1100854A GB760269A (en) 1954-04-14 1954-04-14 Improvements in electric motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1100854A GB760269A (en) 1954-04-14 1954-04-14 Improvements in electric motors

Publications (1)

Publication Number Publication Date
GB760269A true GB760269A (en) 1956-10-31

Family

ID=9978362

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1100854A Expired GB760269A (en) 1954-04-14 1954-04-14 Improvements in electric motors

Country Status (1)

Country Link
GB (1) GB760269A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3075109A (en) * 1958-06-04 1963-01-22 Gen Ind Co Electric motors
US4445061A (en) * 1980-06-17 1984-04-24 Synetron Corporation Wide air gap permanent magnet motors
USRE32654E (en) * 1980-06-17 1988-04-26 Wide air gap permanent magnet motors
US4791332A (en) * 1986-06-20 1988-12-13 Layh Hans Dieter Rotor for motor tacho-generator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3075109A (en) * 1958-06-04 1963-01-22 Gen Ind Co Electric motors
US4445061A (en) * 1980-06-17 1984-04-24 Synetron Corporation Wide air gap permanent magnet motors
USRE32654E (en) * 1980-06-17 1988-04-26 Wide air gap permanent magnet motors
US4791332A (en) * 1986-06-20 1988-12-13 Layh Hans Dieter Rotor for motor tacho-generator

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