GB1394063A - Rotors of squirrel cage motors - Google Patents

Rotors of squirrel cage motors

Info

Publication number
GB1394063A
GB1394063A GB4773971A GB4773971A GB1394063A GB 1394063 A GB1394063 A GB 1394063A GB 4773971 A GB4773971 A GB 4773971A GB 4773971 A GB4773971 A GB 4773971A GB 1394063 A GB1394063 A GB 1394063A
Authority
GB
United Kingdom
Prior art keywords
squirrel cage
rotors
ring
rotor core
windage losses
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
GB4773971A
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.)
Schwarz K K
Laurence Scott and Electromotors Ltd
Original Assignee
Schwarz K K
Laurence Scott and Electromotors 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 Schwarz K K, Laurence Scott and Electromotors Ltd filed Critical Schwarz K K
Priority to GB4773971A priority Critical patent/GB1394063A/en
Publication of GB1394063A publication Critical patent/GB1394063A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/44—Protection against moisture or chemical attack; Windings specially adapted for operation in liquid or gas
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K17/00—Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02—Asynchronous induction motors
    • H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
    • H02K17/168—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors having single-cage rotors

Landscapes

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

Abstract

1394063 Windage losses with squirrel cage rotors LAURENCE, SCOTT & ELECTROMOTORS Ltd J P PESTLE and K K SCHWARZ 13 Oet 1972 [13 Oct 1971] 47739/71 Heading H2A In a squirrel cage rotor system wherein the axial cage bars 3 and the end ring 4 are allowed to "float" relative to the rotor core 1 in order to accommodate thermal and centrifugal stresses, windage losses caused by air/gas/liquid flow through gaps in the structure, e.g. along the path arrowed in Fig. 1 (not shown) are reduced by mounting a flexible ring 8, Fig. 2, on a carrier 9 fixed to an end closing plate 6 such that the gap between the shrink ring 5 and the rotor core hub 7 is sealed. In alternative embodiments (Figs. 3-7, not shown), sealing is effected by bellows, or piston/slot arrangements.
GB4773971A 1971-10-13 1971-10-13 Rotors of squirrel cage motors Expired GB1394063A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4773971A GB1394063A (en) 1971-10-13 1971-10-13 Rotors of squirrel cage motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4773971A GB1394063A (en) 1971-10-13 1971-10-13 Rotors of squirrel cage motors

Publications (1)

Publication Number Publication Date
GB1394063A true GB1394063A (en) 1975-05-14

Family

ID=10446085

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4773971A Expired GB1394063A (en) 1971-10-13 1971-10-13 Rotors of squirrel cage motors

Country Status (1)

Country Link
GB (1) GB1394063A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1521348A2 (en) * 2003-10-03 2005-04-06 ROLLS-ROYCE plc Electrical machine
EP2892133B1 (en) * 2013-12-04 2018-10-10 Eaton Intelligent Power Limited High slip variable frequency induction motors

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1521348A2 (en) * 2003-10-03 2005-04-06 ROLLS-ROYCE plc Electrical machine
EP1521348A3 (en) * 2003-10-03 2005-10-12 ROLLS-ROYCE plc Electrical machine
EP2892133B1 (en) * 2013-12-04 2018-10-10 Eaton Intelligent Power Limited High slip variable frequency induction motors

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee