GB1259760A - Ventilation of an electric motor - Google Patents
Ventilation of an electric motorInfo
- Publication number
- GB1259760A GB1259760A GB2666570A GB2666570A GB1259760A GB 1259760 A GB1259760 A GB 1259760A GB 2666570 A GB2666570 A GB 2666570A GB 2666570 A GB2666570 A GB 2666570A GB 1259760 A GB1259760 A GB 1259760A
- Authority
- GB
- United Kingdom
- Prior art keywords
- casing
- stator
- rotor
- vents
- shields
- 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
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
Abstract
1,259,760. Ventilating electric motors. EMERSON ELECTRIC CO. 2 June, 1970, No. 26665/70. Heading H2A. In an electric, e.g. A.C. motor comprising a rotor 18 rotatable in a stator 12 fitted into a hollow cylindrical casing 10 whose end shields 38, 40 journal the rotor shaft 20, a ventilating structure comprises a blower 64 in each unobstructed end space between the stator and end shield and includes an annulus 68 rotatable with the rotor, and. having radial vanes 72 in a concave surface coextending radially with the stator end face and a peripheral edge having a close running fit with the casing wall, vents (74) Fig. 2, in the end shields, and circularly spaced vents 76 in the casing between the ends of the stator and the blower edges; in operation, cooling air is drawn in through the end shield vents and annulus centres, and is directed outwardly along the stator end surfaces, the casing wall, and exits through the casing vents. The unobstructed space is provided by securing the end shields to the casing ends by bolts 52 which engage rectangular nuts 48 haying shanks retained in casing holes 46. The rotor has end rings 19 with integrally cast vanes 62 to which screws 66 secure the blowers The shaft bearings 22, 24 are initially located by applying a paste cement 58 between their rings 54, 56 and the end shields, centering the rotor by shims 61, hardening the cement, and then removing the shims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2666570A GB1259760A (en) | 1970-06-02 | 1970-06-02 | Ventilation of an electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2666570A GB1259760A (en) | 1970-06-02 | 1970-06-02 | Ventilation of an electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1259760A true GB1259760A (en) | 1972-01-12 |
Family
ID=10247247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2666570A Expired GB1259760A (en) | 1970-06-02 | 1970-06-02 | Ventilation of an electric motor |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1259760A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1981002228A1 (en) * | 1980-01-31 | 1981-08-06 | Novex Foreign Trade Co Ltd | Induction motor with short-circuited armature and a pipe cage |
-
1970
- 1970-06-02 GB GB2666570A patent/GB1259760A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1981002228A1 (en) * | 1980-01-31 | 1981-08-06 | Novex Foreign Trade Co Ltd | Induction motor with short-circuited armature and a pipe cage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |