GB191422131A - Improvements in and relating to Direct-current Dynamo Electric Machines. - Google Patents

Improvements in and relating to Direct-current Dynamo Electric Machines.

Info

Publication number
GB191422131A
GB191422131A GB191422131DA GB191422131A GB 191422131 A GB191422131 A GB 191422131A GB 191422131D A GB191422131D A GB 191422131DA GB 191422131 A GB191422131 A GB 191422131A
Authority
GB
United Kingdom
Prior art keywords
slots
commutating
teeth
winding
exciting
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
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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
Application filed by British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Application granted granted Critical
Publication of GB191422131A publication Critical patent/GB191422131A/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
    • H02K23/22—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having compensating or damping windings

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

22,131. British Thomson-Houston Co., [General Electric Co.]. Nov. 6. Commutating - poles; cores, yokes, and carcase structures; exciting.-In the compensated directcurrent dynamo - electric machine described in Specification 19,210/09, the compensating-winding is adapted to overpower the armature reaction, thereby producing 'a commutating-flux, and the machine is provided with definite commutating- teeth. As described in the above-mentioned Specification, the compensating-winding 29<1> and the exciting-winding 28<1> have a fifty per cent pitch and are completely distributed over the field magnet. The commutating - teeth 31 are made wider than the other teeth and are separated from the adjacent teeth by relatively wide slots. These slots are closed by non - magnetic wedges 35, magnetic wedges 36 being used to close the other slots. In a modification, the slots are unevenly distributed, the greatest distance between the slots occurring at the centre of the pole face and diminishing towards the ends.
GB191422131D 1914-11-06 1914-11-06 Improvements in and relating to Direct-current Dynamo Electric Machines. Expired GB191422131A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191422131T 1914-11-06

Publications (1)

Publication Number Publication Date
GB191422131A true GB191422131A (en) 1915-11-08

Family

ID=32586844

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191422131D Expired GB191422131A (en) 1914-11-06 1914-11-06 Improvements in and relating to Direct-current Dynamo Electric Machines.

Country Status (1)

Country Link
GB (1) GB191422131A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999031787A1 (en) * 1997-12-18 1999-06-24 Bojkovic Dragan Direct current motor with a slotted stator core
US20100176675A1 (en) * 2009-01-15 2010-07-15 Nicolas Labbe Electric rotating machine, mainly for the starter of an automotive vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999031787A1 (en) * 1997-12-18 1999-06-24 Bojkovic Dragan Direct current motor with a slotted stator core
US20100176675A1 (en) * 2009-01-15 2010-07-15 Nicolas Labbe Electric rotating machine, mainly for the starter of an automotive vehicle

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