GB641614A - Improvements in or relating to the automatic control of the magnetic flux in electric generators, particularly bicycle generators - Google Patents
Improvements in or relating to the automatic control of the magnetic flux in electric generators, particularly bicycle generatorsInfo
- Publication number
- GB641614A GB641614A GB30459/47A GB3045947A GB641614A GB 641614 A GB641614 A GB 641614A GB 30459/47 A GB30459/47 A GB 30459/47A GB 3045947 A GB3045947 A GB 3045947A GB 641614 A GB641614 A GB 641614A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polepieces
- armature
- generators
- shunt
- relating
- 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
- H02K21/028—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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
641,614. Machines with permanent magnets. LINDBLAD, K. B. Nov. 17, 1947, No. 30459. Convention date, Nov. 10, 1947. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 19, 1948.] [Class 35] In a variable speed generator, particularly a cycle dynamo, the armature has individual polepieces which are magnetically shunted at higher speeds by centrifugal control, the shunt or shunts moving radially as shown, the rotors armature has a core 7 and four projecting polepieces 14 within polepieces 3, 4, 5 and 6 of the magnet. 1. The shunt comprises weights 22 carried by springs 19 in a support 17 and a magnetic disc 16 fixed to the shaft which does not extend to the vicinity of the armature polepieces. In a modification the turns of a coil spring themselves serve as the shunt. The shunts may co-operate with the polepieces of a stationary armature which surrounds a rotary magnet.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE641614X | 1947-11-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB641614A true GB641614A (en) | 1950-08-16 |
Family
ID=20313797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30459/47A Expired GB641614A (en) | 1947-11-10 | 1947-11-17 | Improvements in or relating to the automatic control of the magnetic flux in electric generators, particularly bicycle generators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB641614A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3930050A1 (en) * | 1989-09-08 | 1991-03-14 | Kunze Toni | Alternator for charging vehicle battery or powering lighting system - maintains constant output over wide range of speeds regulating from self-compensating stator-rotor flux control |
| DE19633086A1 (en) * | 1996-08-16 | 1997-01-30 | Leyrer Alwin Dipl Ing Fh | Permanent magnet generator with variable torque e.g. bicycle dynamo - achieves continuous attenuation of magnetic flux through generator coils during operation by regulating power with varying revs. rate; flux control plate can be used without causing eddy current braking |
| GB2484164A (en) * | 2010-09-29 | 2012-04-04 | Nissan Motor Mfg Uk Ltd | Dynamo-electric machine with rotor magnet adjustable shunt |
| US10944302B2 (en) | 2018-04-09 | 2021-03-09 | Williams International Co., L.L.C. | Permanent-magnet generator incorporating a variable-reluctance stator system |
-
1947
- 1947-11-17 GB GB30459/47A patent/GB641614A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3930050A1 (en) * | 1989-09-08 | 1991-03-14 | Kunze Toni | Alternator for charging vehicle battery or powering lighting system - maintains constant output over wide range of speeds regulating from self-compensating stator-rotor flux control |
| DE19633086A1 (en) * | 1996-08-16 | 1997-01-30 | Leyrer Alwin Dipl Ing Fh | Permanent magnet generator with variable torque e.g. bicycle dynamo - achieves continuous attenuation of magnetic flux through generator coils during operation by regulating power with varying revs. rate; flux control plate can be used without causing eddy current braking |
| GB2484164A (en) * | 2010-09-29 | 2012-04-04 | Nissan Motor Mfg Uk Ltd | Dynamo-electric machine with rotor magnet adjustable shunt |
| GB2484164B (en) * | 2010-09-29 | 2013-10-16 | Nissan Motor Mfg Uk Ltd | Dynamo-electric machine |
| US10944302B2 (en) | 2018-04-09 | 2021-03-09 | Williams International Co., L.L.C. | Permanent-magnet generator incorporating a variable-reluctance stator system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB426671A (en) | Improvements in and relating to magneto-electric machines | |
| GB773747A (en) | Improvements in or relating to direct current motors | |
| GB641614A (en) | Improvements in or relating to the automatic control of the magnetic flux in electric generators, particularly bicycle generators | |
| GB715621A (en) | Improvements in reproducing servo-mechanisms | |
| GB692849A (en) | Improvements in electric brakes | |
| GB629764A (en) | Improvements relating to the heating of compressors | |
| GB1300996A (en) | Stators for electric machines | |
| GB564865A (en) | Improvements in or relating to permanent- or electro-magnet motor or generator structures | |
| GB684745A (en) | Improvements in magnetic pole pieces for dynamo electric machines | |
| GB568864A (en) | Improvements in or relating to electric generators | |
| JPS5388108A (en) | Direct current brush-less motors | |
| GB592331A (en) | Improvements in or relating to electric generators for cycle lighting | |
| GB522557A (en) | Improvements in or relating to electric motors | |
| GB677287A (en) | Improvements in and relating to dynamo-electric machines | |
| GB635624A (en) | Improvements in or relating to electric motors | |
| GB667390A (en) | Improvements in a.c. generators | |
| GB872309A (en) | Improvements in and relating to tachometer signal generators | |
| GB619837A (en) | Improvements in dynamo electric machines | |
| GB630652A (en) | Improvements in or relating to dynamo-electric machines | |
| GB642476A (en) | Improvements relating to single phase synchronous motors | |
| FR2275926A1 (en) | Electromagnetic brake for rotating shaft - magnetic rotor fixed to shaft cooperating with fixed stator casing | |
| GB628373A (en) | Improvements in or relating to magneto electric generators | |
| GB681403A (en) | Improvements relating to dynamo electric machines | |
| GB651223A (en) | Improvements in and relating to magneto-electric machines | |
| GB163548A (en) | Magneto-electric machine having a fixed permanent magnet and a fixed armature |