GB875497A - Air-cooled eddy-current coupling - Google Patents

Air-cooled eddy-current coupling

Info

Publication number
GB875497A
GB875497A GB1533/60A GB153360A GB875497A GB 875497 A GB875497 A GB 875497A GB 1533/60 A GB1533/60 A GB 1533/60A GB 153360 A GB153360 A GB 153360A GB 875497 A GB875497 A GB 875497A
Authority
GB
United Kingdom
Prior art keywords
armature
air
stator
fins
machine
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
GB1533/60A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB875497A publication Critical patent/GB875497A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
    • H02K49/02—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type
    • H02K49/04—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
    • H02K49/043—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type with a radial airgap

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

875,497. Eddy current couplings. COHEN, E., and ROTH, S. Jan. 15, 1960 [Jan. 23, 1959], No. 1533/60. Class 35. An air-cooled eddy-current coupling includes a stator comprising two portions 1a, 1b with a field coil 2, surrounding a first armature 9 rigidly attached to driving shaft 7 and a second armature 10 rigidly attached to driven shaft 8. Armature 9 is formed with teeth and slots on its outer periphery and is reduced in thickness near the centre 14 to reduce leakage flux in this region. Armature 8 has a smooth outer periphery and the portion between the hub and outer periphery is divided into radial fins and slots 15 to allow passage of cooling air. Also mounted on shaft 8 is a fan 16 which draws air through the machine from an inlet in end-flange 3 to outlet 19 in the stator. Armature 9 is also provided with fins 20 to mix the hot and cooler air, and it is supported at both ends by ball bearings 11, 13. In another embodiment (Fig. 2, not shown) the fins on the inner armature project laterally beyond the outer peripheral portion of the armature and act as fan blades. Holes are formed in each end flange of the machine as well as in each end of the stator and outer armature so that both axial and radial air streams flow through the machine.
GB1533/60A 1959-01-23 1960-01-15 Air-cooled eddy-current coupling Expired GB875497A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR875497X 1959-01-23

Publications (1)

Publication Number Publication Date
GB875497A true GB875497A (en) 1961-08-23

Family

ID=9360172

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1533/60A Expired GB875497A (en) 1959-01-23 1960-01-15 Air-cooled eddy-current coupling

Country Status (1)

Country Link
GB (1) GB875497A (en)

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