GB733975A - Improvements in or relating to alternators - Google Patents

Improvements in or relating to alternators

Info

Publication number
GB733975A
GB733975A GB26132/53A GB2613253A GB733975A GB 733975 A GB733975 A GB 733975A GB 26132/53 A GB26132/53 A GB 26132/53A GB 2613253 A GB2613253 A GB 2613253A GB 733975 A GB733975 A GB 733975A
Authority
GB
United Kingdom
Prior art keywords
rotor
inductors
load
inlet temperature
spring
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
GB26132/53A
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.)
Bendix Aviation Corp
Original Assignee
Bendix Aviation Corp
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 Bendix Aviation Corp filed Critical Bendix Aviation Corp
Publication of GB733975A publication Critical patent/GB733975A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H02K21/022—Means for mechanical adjustment of the excitation flux by modifying the relative position between field and armature, e.g. between rotor and stator
    • H02K21/025—Means for mechanical adjustment of the excitation flux by modifying the relative position between field and armature, e.g. between rotor and stator by varying the thickness of the air gap between field and armature
    • H02K21/027—Conical air gap machines

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

733,975. Gasturbine plant. BENDIX AVIATION CORPORATION. Sept. 22, 1953 (Oct. 1, 1952], No. 26132/53. Class 110 (3). [Also in Group.XXXV] A variable speed alternator for a gas turbine engine fuel control system comprises a multipolar permanent magnet rotor 40 slidably splined on a drive shaft 42 to be axially movable and is continually urged in a flux decreasing direction by a spring 62 which is opposed by dual oppositely arranged cantilever springs 66, 68, which have centrifugal weights 74 operating to reduce the forces of opposition of springs 66, 68 to spring 62 whereby to permit such axial movement as a function of rotor speed. As shown, the rotor 10 and stator 48 are preferably tapered, but their co-operating surfaces alternatively may be parallel with the axis of shaft 42. As shown in Fig. 1, the alternator supplies over a transformer 14, the main windings of magnetic amplifier inductors 16, 18, and rectifiers 22, 24, pulsating direct current to a load 26 which may be an electrical device controlling the engine fuel flow ; a thermocouple 28 which senses the inlet temperature of the turbine is connected to D.C. control coils 30, 32 of the inductors whereby to vary the current in load 26 and hence the fuel flow in such manner as to return the turbine inlet temperature to a safe value should it exceed a predetermined value.
GB26132/53A 1952-10-01 1953-09-22 Improvements in or relating to alternators Expired GB733975A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US733975XA 1952-10-01 1952-10-01

Publications (1)

Publication Number Publication Date
GB733975A true GB733975A (en) 1955-07-20

Family

ID=22113459

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26132/53A Expired GB733975A (en) 1952-10-01 1953-09-22 Improvements in or relating to alternators

Country Status (1)

Country Link
GB (1) GB733975A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4920295A (en) * 1987-08-10 1990-04-24 Karel Holden Alternator
DE3940487A1 (en) * 1989-12-07 1991-06-13 Wilhelm Messerschmidt Electric machine with continuously variable mechanical adjustment - provided by relative movement of rotor and stator in conical configuration causing variation of air gap
GB2338117A (en) * 1998-04-23 1999-12-08 Turbo Genset Company Ltd Variable axial airgap rotary electric machines
ITPN20080090A1 (en) * 2008-12-15 2010-06-16 Appliances Components Companies S P A "PERMANENT MAGNET ELECTRIC MOTOR"
GB2574279A (en) * 2018-05-30 2019-12-04 Univ Of Nottingham Ningbo China Permanent magnet conical motors, stators and rotors thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4920295A (en) * 1987-08-10 1990-04-24 Karel Holden Alternator
DE3940487A1 (en) * 1989-12-07 1991-06-13 Wilhelm Messerschmidt Electric machine with continuously variable mechanical adjustment - provided by relative movement of rotor and stator in conical configuration causing variation of air gap
GB2338117A (en) * 1998-04-23 1999-12-08 Turbo Genset Company Ltd Variable axial airgap rotary electric machines
GB2338117B (en) * 1998-04-23 2002-06-19 Turbo Genset Company Ltd The Rotary electrical machines
ITPN20080090A1 (en) * 2008-12-15 2010-06-16 Appliances Components Companies S P A "PERMANENT MAGNET ELECTRIC MOTOR"
EP2197090A1 (en) * 2008-12-15 2010-06-16 Appliances Components Companies S.p.A. Electric permanent magnet motor
GB2574279A (en) * 2018-05-30 2019-12-04 Univ Of Nottingham Ningbo China Permanent magnet conical motors, stators and rotors thereof
GB2574279B (en) * 2018-05-30 2022-09-14 Univ Of Nottingham Ningbo China Permanent magnet conical motors, stators and rotors thereof

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