GB1084589A - Improvements in or relating to eddy-current apparatus - Google Patents

Improvements in or relating to eddy-current apparatus

Info

Publication number
GB1084589A
GB1084589A GB30578/65A GB3057865A GB1084589A GB 1084589 A GB1084589 A GB 1084589A GB 30578/65 A GB30578/65 A GB 30578/65A GB 3057865 A GB3057865 A GB 3057865A GB 1084589 A GB1084589 A GB 1084589A
Authority
GB
United Kingdom
Prior art keywords
inductor
drum
eddy
inch
facing
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
GB30578/65A
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.)
Heenan and Froude Ltd
Original Assignee
Heenan and Froude 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 Heenan and Froude Ltd filed Critical Heenan and Froude Ltd
Publication of GB1084589A publication Critical patent/GB1084589A/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)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)

Abstract

1,084,589. Eddy-current machines. HEENAN & FROUDE Ltd. July 19, 1965 [Aug. 31, 1964], No. 30578/65. Heading H2A. In eddy-current apparatus, such as couplings, dynamometers and brakes, the inner surface of the inductor drum 25 is provided with a facing A of magnetizable metal, e.g. nickel, having an electrical resistance lower than that of the inductor drum, so as to protect the drum against corrosion and to improve the torqueslipspeed characteristic of the apparatus. The gap 27 between inductor and rotor teeth 23 may be 1/32 to <SP>1</SP>/ 8 of an inch and the thickness of the facing may be from 0À005 to 0À030 of an inch and may have a resistance of 5-8 micro ohm cm. at 20‹ C. The inductor drum 25 is formed of two cylinders, of e.g. iron or steel, welded together at 2. A generator 12, which is belt driven from shaft 17, feeds the field winding 7. Coolant, e.g. water, from inlet 4 splits into two paths L, U; one through the rotor teeth 23 and the other through gaps 33, 35 between the annular field poles 3, 5 and the inductor drum to meet in chamber 8 for removal at 10.
GB30578/65A 1964-08-31 1965-07-19 Improvements in or relating to eddy-current apparatus Expired GB1084589A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US393147A US3365598A (en) 1964-08-31 1964-08-31 Eddy-current apparatus including a magnetizable metal facing

Publications (1)

Publication Number Publication Date
GB1084589A true GB1084589A (en) 1967-09-27

Family

ID=23553471

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30578/65A Expired GB1084589A (en) 1964-08-31 1965-07-19 Improvements in or relating to eddy-current apparatus

Country Status (2)

Country Link
US (1) US3365598A (en)
GB (1) GB1084589A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103158562A (en) * 2011-12-13 2013-06-19 泰乐玛汽车制动***（上海）有限公司 Retarder with function of self-generating electric and used for vehicles

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1492184A (en) * 1966-06-27 1967-08-18 Eurotechni Office Ventilation device for cooling a heat engine
US3700941A (en) * 1971-02-03 1972-10-24 John E Duncan Adjustable hysteresis clutch and brake
US3826937A (en) * 1971-08-12 1974-07-30 E Davies Eddy current couplings
US3863083A (en) * 1973-06-13 1975-01-28 Eaton Corp Fluid-cooled dynamometer
DE3864969D1 (en) * 1987-04-30 1991-10-24 Tokyo Buhin Kogyo Co Ltd FOUCAULT CURRENT BRAKE.
DE19541737A1 (en) * 1995-11-09 1997-05-15 Philips Patentverwaltung Axial flow induction motor
US6900569B2 (en) * 2002-09-16 2005-05-31 Visteon Global Technologies, Inc. Increased torque in retarder brake system through use of conductive layer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2447130A (en) * 1944-09-23 1948-08-17 Chrysler Corp Accessory drive
US2971105A (en) * 1959-04-13 1961-02-07 Eaton Mfg Co Eddy-current machine
US3223916A (en) * 1962-02-05 1965-12-14 Trw Inc Brushless rotary inverter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103158562A (en) * 2011-12-13 2013-06-19 泰乐玛汽车制动***（上海）有限公司 Retarder with function of self-generating electric and used for vehicles

Also Published As

Publication number Publication date
US3365598A (en) 1968-01-23

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