GB733975A - Improvements in or relating to alternators - Google Patents
Improvements in or relating to alternatorsInfo
- 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
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.
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)
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 |
-
1953
- 1953-09-22 GB GB26132/53A patent/GB733975A/en not_active Expired
Cited By (8)
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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