GB1120018A - Improvements in single-phase induction electric motor - Google Patents
Improvements in single-phase induction electric motorInfo
- Publication number
- GB1120018A GB1120018A GB602067A GB602067A GB1120018A GB 1120018 A GB1120018 A GB 1120018A GB 602067 A GB602067 A GB 602067A GB 602067 A GB602067 A GB 602067A GB 1120018 A GB1120018 A GB 1120018A
- Authority
- GB
- United Kingdom
- Prior art keywords
- axis
- slot
- flux
- quadrature
- displaced
- 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
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/04—Asynchronous induction motors for single phase current
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
1,120,018. Induction motors. GENERAL ELECTRIC CO. 8 Feb., 1967 [7 June, 1966], No. 6020/67. Heading H2A. A single-phase induction motor is rendered self-starting without the use of quadrature windings by means of a magnetic restriction in the form of a radial gap 32 in the stator core and displaced from the direct axis 23, 24 in the direction of rotation. The gap 32 enters, or, as shown, nearly enters, a slot 17a displaced by an angle # from the direct axis. This produces a flux distortion which shifts the direct axis to this slot on axis 36, the quadrature axis being at 31, approximately 90 degrees away. The angle 0 is between 20 and 70 degrees and the slot is filled with resin. The concentric coils 25-29 give a sinusoidal ampere-turn pattern, and a method of measuring the winding reactance to determine the numbers of turns is described. In addition, a wide tooth may be used on axis 23, 24 and some teeth near this may be cut back to augment the flux-shift between the primary and quadrature flux (Fig. 7, not shown). Alternatively (Fig. 8, not shown), the teeth may be cut back in a continuously graded fashion to establish the axes, and the phase difference between them.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US55573266A | 1966-06-07 | 1966-06-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1120018A true GB1120018A (en) | 1968-07-17 |
Family
ID=24218400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB602067A Expired GB1120018A (en) | 1966-06-07 | 1967-02-09 | Improvements in single-phase induction electric motor |
Country Status (3)
| Country | Link |
|---|---|
| ES (1) | ES339815A1 (en) |
| FR (1) | FR1514755A (en) |
| GB (1) | GB1120018A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013041681A3 (en) * | 2011-09-23 | 2014-06-12 | Gottfried Wilhelm Leibniz Universität Hannover | Electrical machine |
-
1967
- 1967-02-09 GB GB602067A patent/GB1120018A/en not_active Expired
- 1967-03-16 FR FR99112A patent/FR1514755A/en not_active Expired
- 1967-04-26 ES ES339815A patent/ES339815A1/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013041681A3 (en) * | 2011-09-23 | 2014-06-12 | Gottfried Wilhelm Leibniz Universität Hannover | Electrical machine |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1514755A (en) | 1968-02-23 |
| ES339815A1 (en) | 1968-05-16 |
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