GB545305A - Improvements relating to the de-icing of rotatable parts of aircraft - Google Patents

Improvements relating to the de-icing of rotatable parts of aircraft

Info

Publication number
GB545305A
GB545305A GB3146/41A GB314641A GB545305A GB 545305 A GB545305 A GB 545305A GB 3146/41 A GB3146/41 A GB 3146/41A GB 314641 A GB314641 A GB 314641A GB 545305 A GB545305 A GB 545305A
Authority
GB
United Kingdom
Prior art keywords
rotor
stator
winding
poles
alternator
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
GB3146/41A
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.)
JACK HOLMES WALKER
British Thomson Houston Co Ltd
Original Assignee
JACK HOLMES WALKER
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 JACK HOLMES WALKER, British Thomson Houston Co Ltd filed Critical JACK HOLMES WALKER
Priority to GB3146/41A priority Critical patent/GB545305A/en
Publication of GB545305A publication Critical patent/GB545305A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D15/00—De-icing or preventing icing on exterior surfaces of aircraft
    • B64D15/12—De-icing or preventing icing on exterior surfaces of aircraft by electric heating
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/16—Synchronous generators
    • H02K19/18—Synchronous generators having windings each turn of which co-operates only with poles of one polarity, e.g. homopolar generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/16—Synchronous generators
    • H02K19/22—Synchronous generators having windings each turn of which co-operates alternately with poles of opposite polarity, e.g. heteropolar generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/02—Details
    • H02K21/021—Means for mechanical adjustment of the excitation flux
    • H02K21/028—Means for mechanical adjustment of the excitation flux by modifying the magnetic circuit within the field or the armature, e.g. by using shunts, by adjusting the magnets position, by vectorial combination of field or armature sections
    • H02K21/029—Vectorial combination of the fluxes generated by a plurality of field sections or of the voltages induced in a plurality of armature sections

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Synchronous Machinery (AREA)

Abstract

545,305. Generators. BRITISH THOMSON-HOUSTON CO., Ltd., CLARKE, L. J., and WALKER, J. H. March 7, 1941, No. 3146. [Class 35] [Also in Group XXXIII] De-icing heaters attached to the airscrew or other rotatable part of an aircraft are supplied with alternating current by an inductortype alternator having the rotor and stator carried by the rotatable part and an adjacent fixed part respectively. The inherently high resistance of the alternator limits output at excessive speeds, and thus reduces the risk of burning out the heaters. The homopolar alternator shown in Fig. 1 comprises a rotor 6 and stator 15 attached to the hub 2 and housing 1 respectively. The rotor consists of a magnetic shell 7 and notched laminated cores 8, 9 provided with a single winding 10, or a pair, connected by leads 14 to the heaters. The stator comprises a channel-ring 17 containing a winding 20, and supporting staggered toothed rings 18, 19 which provide poles of different polarity. The winding 20 is connected by leads 21 to a source of direct current. The winding 10 may be so arranged that axially adjacent portions of the cores 8, 9 are of opposite polarity, in which case the parts 17, 18, 19 of the stator can be formed integrally. The parts 8, 18 may be omitted. The stator may be arranged externally to the rotor, and the field element may be carried by the rotor. The winding 20 may be replaced by permanent magnets. In this case, one of the rings 18, 19 may be rotatable, or the rings may be axially adjustable, to regulate the output. The heteropolar alternator shown in Fig. 5 comprises a rotor 9 having poles surrounded by coils, and a stator 15 having a winding 20, and poles 23 which vary in polarity from quadrant to quadrant. In modifications, the windings in alternate quadrants of the rotor are reversed, and the poles 23 are spaced uniformly; or both the rotor and stator may have uniformly but differently spaced poles. Specifications 525,452 and 545,298, [Group XXXIII], are referred to.
GB3146/41A 1941-03-07 1941-03-07 Improvements relating to the de-icing of rotatable parts of aircraft Expired GB545305A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3146/41A GB545305A (en) 1941-03-07 1941-03-07 Improvements relating to the de-icing of rotatable parts of aircraft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3146/41A GB545305A (en) 1941-03-07 1941-03-07 Improvements relating to the de-icing of rotatable parts of aircraft

Publications (1)

Publication Number Publication Date
GB545305A true GB545305A (en) 1942-05-19

Family

ID=9752810

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3146/41A Expired GB545305A (en) 1941-03-07 1941-03-07 Improvements relating to the de-icing of rotatable parts of aircraft

Country Status (1)

Country Link
GB (1) GB545305A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2444557A (en) * 1943-02-04 1948-07-06 United Aircraft Corp Propeller anti-icer
GB2149585A (en) * 1983-10-17 1985-06-12 Gen Electric Propeller actuation system
US5558495A (en) * 1993-12-02 1996-09-24 Sundstrand Corporation Electromagnetic heating devices, particularly for ram air turbines
US5746580A (en) * 1993-12-02 1998-05-05 Sundstrand Corporation Electromagnetic heating devices, particularly for ram air turbines
EP2528203A1 (en) 2011-05-24 2012-11-28 Eurocopter Device for supplying electric power to at least one device of a rotating rotor of an aircraft and aircraft

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2444557A (en) * 1943-02-04 1948-07-06 United Aircraft Corp Propeller anti-icer
GB2149585A (en) * 1983-10-17 1985-06-12 Gen Electric Propeller actuation system
US4556366A (en) * 1983-10-17 1985-12-03 General Electric Company Propeller actuation system
US5558495A (en) * 1993-12-02 1996-09-24 Sundstrand Corporation Electromagnetic heating devices, particularly for ram air turbines
US5746580A (en) * 1993-12-02 1998-05-05 Sundstrand Corporation Electromagnetic heating devices, particularly for ram air turbines
EP2528203A1 (en) 2011-05-24 2012-11-28 Eurocopter Device for supplying electric power to at least one device of a rotating rotor of an aircraft and aircraft
FR2975842A1 (en) * 2011-05-24 2012-11-30 Eurocopter France DEVICE FOR ELECTRICALLY SUPPLYING AT LEAST ONE EQUIPMENT OF A ROTOR ROTOR OF AN AIRCRAFT, AND AIRCRAFT
US8890378B2 (en) 2011-05-24 2014-11-18 Airbus Helicopters Electrical power supply device for electrically powering at least one item of equipment on a rotary rotor of an aircraft, and an aircraft

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