GB579053A - Improvements in or relating to the cooling of eddy-current apparatus - Google Patents
Improvements in or relating to the cooling of eddy-current apparatusInfo
- Publication number
- GB579053A GB579053A GB13546/42A GB1354642A GB579053A GB 579053 A GB579053 A GB 579053A GB 13546/42 A GB13546/42 A GB 13546/42A GB 1354642 A GB1354642 A GB 1354642A GB 579053 A GB579053 A GB 579053A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grooves
- air
- eddy
- driven shaft
- drum
- 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
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/02—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type
- H02K49/04—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
- H02K49/043—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type with a radial airgap
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
579,053. Electromagnetic clutches. WINTHER, M. P. Sept. 26, 1942, No. 13546. Convention date, April 13. [Class 35] Eddy-current machines are air-cooled by providing the rotary armature drum 7 with peripheral V-shaped grooves and fins 21, and a series of stationary baffle members 25 with projections extending into the grooves whereby air is drawn into the grooves at one side of a baffle member and ejected at the opposite side of the next one. Preferably, the sides of the grooves are roughened to promote the air circulation. Where the arrangement of the exciting coils is such as to form a curved fluxcontaining region as in Fig. 4, the depth of the grooves is varied to correspond, preferably by making the grooves in groups of different depths. The drum is carried from a driven shaft by a spider 5, and the field system is mounted on the driven shaft, being kept in alignment with the driver by a bearing thereon. A multicoil machine is described with reference to Fig. 5 (not shown), in which the magnetic flux produced by the coils is alternately in opposite directions.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US579053XA | 1942-04-13 | 1942-04-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB579053A true GB579053A (en) | 1946-07-22 |
Family
ID=22013463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13546/42A Expired GB579053A (en) | 1942-04-13 | 1942-09-26 | Improvements in or relating to the cooling of eddy-current apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB579053A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0462564A1 (en) * | 1990-06-20 | 1991-12-27 | Isuzu Motors Limited | Eddy current type retarder |
-
1942
- 1942-09-26 GB GB13546/42A patent/GB579053A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0462564A1 (en) * | 1990-06-20 | 1991-12-27 | Isuzu Motors Limited | Eddy current type retarder |
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