HK77897A - An electric motor with improved torque ripple - Google Patents
An electric motor with improved torque rippleInfo
- Publication number
- HK77897A HK77897A HK77897A HK77897A HK77897A HK 77897 A HK77897 A HK 77897A HK 77897 A HK77897 A HK 77897A HK 77897 A HK77897 A HK 77897A HK 77897 A HK77897 A HK 77897A
- Authority
- HK
- Hong Kong
- Prior art keywords
- electric motor
- torque ripple
- improved torque
- improved
- ripple
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9010895U DE9010895U1 (en) | 1990-07-23 | 1990-07-23 | Brushless DC motor with improved torque ripple |
Publications (1)
Publication Number | Publication Date |
---|---|
HK77897A true HK77897A (en) | 1997-06-20 |
Family
ID=6855844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK77897A HK77897A (en) | 1990-07-23 | 1997-06-12 | An electric motor with improved torque ripple |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE9010895U1 (en) |
GB (2) | GB9115450D0 (en) |
HK (1) | HK77897A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19633209A1 (en) * | 1995-08-28 | 1997-03-06 | Papst Motoren Gmbh & Co Kg | Reducing reluctance moment or cogging of electric motor |
US5852334A (en) * | 1995-10-19 | 1998-12-22 | Tridelta Industries, Inc. | Staggered pole switched reluctance motor |
GB9801187D0 (en) * | 1998-01-20 | 1998-03-18 | Switched Reluctance Drives Ltd | Noise reduction in reluctance machines |
GB9810418D0 (en) * | 1998-05-14 | 1998-07-15 | Switched Reluctance Drives Ltd | A set of laminations for a switched reluctance machine |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB950655A (en) * | ||||
CA934814A (en) * | 1970-06-26 | 1973-10-02 | Kawasaki Itaru | Rotating electric machine |
DE2919581A1 (en) * | 1979-05-15 | 1980-11-27 | Papst Motoren Kg | TWO-PULSE COLLECTORLESS DC MOTOR |
US4583015A (en) * | 1983-08-20 | 1986-04-15 | Pioneer Electronic Corporation | Single-phase brushless motor with multisector stator armature poles having different cross-sections |
-
1990
- 1990-07-23 DE DE9010895U patent/DE9010895U1/en not_active Expired - Lifetime
-
1991
- 1991-07-18 GB GB919115450A patent/GB9115450D0/en active Pending
- 1991-07-23 GB GB9115852A patent/GB2246481B/en not_active Expired - Fee Related
-
1997
- 1997-06-12 HK HK77897A patent/HK77897A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
GB2246481B (en) | 1995-03-29 |
DE9010895U1 (en) | 1991-12-19 |
GB2246481A (en) | 1992-01-29 |
GB9115450D0 (en) | 1991-09-04 |
GB9115852D0 (en) | 1991-09-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB2245108B (en) | Electric motor | |
GB9021108D0 (en) | Electric motor | |
HK58994A (en) | Electrical motor assembly | |
GB8802601D0 (en) | Brushless d c electric motor | |
EP0388965A3 (en) | Brushless electric motor | |
EP0450288A3 (en) | Electric motor | |
EP0479035A3 (en) | Electric motor with connection plug | |
GB2248975B (en) | Electric motor | |
GB9015605D0 (en) | Electric motor | |
GB2221583B (en) | An electric drive motor | |
GB2244603B (en) | An electric motor | |
GB9112412D0 (en) | An electric motor | |
GB9026671D0 (en) | An electric motor | |
GB9302761D0 (en) | Electric motor | |
GB2246481B (en) | An electric motor with improved torque ripple | |
GB2251736B (en) | Improved electric torque motor | |
EP0437682A3 (en) | Electric fan motor | |
GB2276771B (en) | Electric motor | |
GB9027810D0 (en) | Electric motor | |
RU1821887C (en) | Electric motor drive | |
RU1821889C (en) | Electric motor drive | |
EP0470852A3 (en) | An electric motor assembly | |
GB9021109D0 (en) | Electric motor | |
GB9001118D0 (en) | Electric motor | |
GB9027830D0 (en) | Electric motor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PF | Patent in force | ||
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20090723 |