GB358891A - Improved arrangements for cooling the rotors of electric machines - Google Patents

Improved arrangements for cooling the rotors of electric machines

Info

Publication number
GB358891A
GB358891A GB20833/30A GB2083330A GB358891A GB 358891 A GB358891 A GB 358891A GB 20833/30 A GB20833/30 A GB 20833/30A GB 2083330 A GB2083330 A GB 2083330A GB 358891 A GB358891 A GB 358891A
Authority
GB
United Kingdom
Prior art keywords
recesses
cooling
electric machines
rotors
july
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
GB20833/30A
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.)
Ljungstroms Angturbin AB
Original Assignee
Ljungstroms Angturbin AB
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
Priority claimed from DEA58438D external-priority patent/DE555320C/en
Priority claimed from DEA64273D external-priority patent/DE579933C/en
Application filed by Ljungstroms Angturbin AB filed Critical Ljungstroms Angturbin AB
Publication of GB358891A publication Critical patent/GB358891A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/26—Rotor cores with slots for windings

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

358,891. Dynamo-electric machines. AKTIEBOLAGET LJUNGSTROMS ANGTURBIN, 17, Vastra Trõdgardsgaten, Stockholm. July 9, 1930, No. 20833. Convention date, July 12, 1929. [Class 35.] Cooling ; cores.-Cooling recesses are arranged all round the surface of a rotor in the material outside the windings and the projections formed between the recesses are rounded off at their tops. These recesses may be parallel to the axis or may be arranged helically. In the form shown, air entering at the fan 4 enters the wave-shaped recesses 5, and the angle between these recesses and the rotor axis may increase along the air gap as the axial component of the velocity of the air diminishes.
GB20833/30A 1929-07-12 1930-07-09 Improved arrangements for cooling the rotors of electric machines Expired GB358891A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEA58438D DE555320C (en) 1929-07-13 Cooling device for the rotor of turbo-generators with shaft-like cooling grooves provided in the surface of the rotor
DE358891X 1929-07-12
DEA64273D DE579933C (en) 1929-07-13 1929-07-13 Cooling device for the rotors of electrical machines

Publications (1)

Publication Number Publication Date
GB358891A true GB358891A (en) 1931-10-09

Family

ID=27193885

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20833/30A Expired GB358891A (en) 1929-07-12 1930-07-09 Improved arrangements for cooling the rotors of electric machines

Country Status (1)

Country Link
GB (1) GB358891A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015158481A1 (en) * 2014-04-17 2015-10-22 Zf Friedrichshafen Ag Electric machine comprising a cooled rotor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015158481A1 (en) * 2014-04-17 2015-10-22 Zf Friedrichshafen Ag Electric machine comprising a cooled rotor

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