GB1286035A - Synchronous electric motors - Google Patents
Synchronous electric motorsInfo
- Publication number
- GB1286035A GB1286035A GB226870A GB226870A GB1286035A GB 1286035 A GB1286035 A GB 1286035A GB 226870 A GB226870 A GB 226870A GB 226870 A GB226870 A GB 226870A GB 1286035 A GB1286035 A GB 1286035A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rotor
- cores
- jan
- poles
- winding
- 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
- 230000001360 synchronised effect Effects 0.000 title abstract 3
- 238000004804 winding Methods 0.000 abstract 5
- 241000555745 Sciuridae Species 0.000 abstract 3
- 239000000696 magnetic material Substances 0.000 abstract 2
- 125000006850 spacer group Chemical group 0.000 abstract 2
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/02—Synchronous motors
- H02K19/10—Synchronous motors for multi-phase current
- H02K19/103—Motors having windings on the stator and a variable reluctance soft-iron rotor without windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/02—Synchronous motors
- H02K19/14—Synchronous motors having additional short-circuited windings for starting as asynchronous motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/16—Synchronous generators
- H02K19/18—Synchronous generators having windings each turn of which co-operates only with poles of one polarity, e.g. homopolar generators
- H02K19/20—Synchronous generators having windings each turn of which co-operates only with poles of one polarity, e.g. homopolar generators with variable-reluctance soft-iron rotors without winding
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
1286035 Synchronous A.C. motors ELECTROMOTORENFABRIEK DORDT NV 16 Jan 1970 [17 Jan 1969 12 Jan 1970] 2268/70 Heading H2A In a polyphase synchronous A.C. motor which starts asynchronously, the rotor comprises at least two axially-spaced squirrel cages 27, 30, 32 and 27<SP>1</SP>, 34, 36 and associated magnetic cores 24, 25, and the stator comprises annular cores 18, 19 in radial alignment with the rotor cores, together carrying the A.C. winding 20, and a D.C. field winding disposed between the stator cores. The rotor cores 24, 25 are separated by a spacer 22 of magnetic material and each has a pair of poles angularly displaced by 90 degrees with respect to the poles of the other rotor core. In a modification (Fig. 3, not shown) there is a third squirrel cage, third rotor and stator cores and, correspondingly, two D.C. field windings (17, 17<SP>1</SP>). Some of the squirrel cage bars extend through the rotor poles, and the remainder rest in grooves formed in the centre portions of the rotor cores. The rotor shaft 6 has non-magnetic end portions and enlarged centre portion 6<SP>1</SP> of magnetic material, and is mounted on bearings 7, 8 in the end caps 2, 3 of the motor casing, correct positioning of the rotor cores being maintained by spacers 50. A fan 13 is mounted on one end of the rotor shaft within a further cap 14. On starting, the D.C. field winding(s) may be energized a certain time after the polyphase winding by means of a time delay relay (43, Fig. 5, not shown).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6900864A NL6900864A (en) | 1969-01-17 | 1969-01-17 | |
| US219570A | 1970-01-12 | 1970-01-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1286035A true GB1286035A (en) | 1972-08-16 |
Family
ID=26644398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB226870A Expired GB1286035A (en) | 1969-01-17 | 1970-01-16 | Synchronous electric motors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1286035A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988007782A1 (en) * | 1987-03-24 | 1988-10-06 | Wolf John V D | Electric generator |
| GB2383692A (en) * | 2001-12-31 | 2003-07-02 | Visteon Global Tech Inc | Inductor generator for a vehicle braking system |
-
1970
- 1970-01-16 GB GB226870A patent/GB1286035A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988007782A1 (en) * | 1987-03-24 | 1988-10-06 | Wolf John V D | Electric generator |
| GB2383692A (en) * | 2001-12-31 | 2003-07-02 | Visteon Global Tech Inc | Inductor generator for a vehicle braking system |
| US6724110B2 (en) | 2001-12-31 | 2004-04-20 | Visteon Global Technologies, Inc. | Reluctance generator for an eddy current braking system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |