GB796998A - Improvements in or relating to electro-magnetic variable-speed drives - Google Patents
Improvements in or relating to electro-magnetic variable-speed drivesInfo
- Publication number
- GB796998A GB796998A GB2531455A GB2531455A GB796998A GB 796998 A GB796998 A GB 796998A GB 2531455 A GB2531455 A GB 2531455A GB 2531455 A GB2531455 A GB 2531455A GB 796998 A GB796998 A GB 796998A
- Authority
- GB
- United Kingdom
- Prior art keywords
- armature
- current
- coupling
- fed
- series
- 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
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/066—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current using a periodic interrupter, e.g. Tirrill regulator
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
796,998. Electromagnetic couplings. SCHMID, W. K. Sept. 2, 1955, No. 25314/55. Addition to 748,255. Class 35. An electromagnetic coupling has a driven outer member 1, and an inner armature member 6, the coupling being controlled by periodically interrupting the current exciting the poles 4 of the outer member, or the current passing through the armature winding. The duration of the current pulses is adjusted by moving the brush 18 along the surface of a taper-contact drum 12. As shown, the exciting poles and the armature are connected in series, but they may, be in parallel. For greater sensitivity of control, the pole windings may be fed from an exciter which is fed with current impulses from a battery connected in series with the impulse transmitter. If desired, the intermediate exciter may be disconnected at high rates of slip. For greater sensitivity two exciters may be used in tandem. It is described how the principle may be applied to a lathe or vehicle drive. The armature may be commutated or polyphase, and the coupling gap may contain magnetic liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2531455A GB796998A (en) | 1955-09-02 | 1955-09-02 | Improvements in or relating to electro-magnetic variable-speed drives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2531455A GB796998A (en) | 1955-09-02 | 1955-09-02 | Improvements in or relating to electro-magnetic variable-speed drives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB796998A true GB796998A (en) | 1958-06-25 |
Family
ID=10225708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2531455A Expired GB796998A (en) | 1955-09-02 | 1955-09-02 | Improvements in or relating to electro-magnetic variable-speed drives |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB796998A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018149971A1 (en) * | 2017-02-16 | 2018-08-23 | Holcomb Scientific Research Limited | Turbofan jet engine, powered by an electric motor with power from a high efficiency electric generator |
| US11336134B2 (en) | 2016-10-04 | 2022-05-17 | Holcomb Scientific Research Limited | Solid state multi-pole and uni-pole electric generator rotor for AC/DC electric generators |
-
1955
- 1955-09-02 GB GB2531455A patent/GB796998A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11336134B2 (en) | 2016-10-04 | 2022-05-17 | Holcomb Scientific Research Limited | Solid state multi-pole and uni-pole electric generator rotor for AC/DC electric generators |
| WO2018149971A1 (en) * | 2017-02-16 | 2018-08-23 | Holcomb Scientific Research Limited | Turbofan jet engine, powered by an electric motor with power from a high efficiency electric generator |
| US11418103B2 (en) | 2017-02-16 | 2022-08-16 | Holcomb Scientific Research Limited | Turbofan jet engine, powered by an electric motor with power from a high efficiency electric generator |
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