| 摘要 |
1,110,653. Cooling dynamo-electric machines. SIEMENS SCHUCKERTWERKE A.G. 6 Dec., 1965 [4 Dec., 1964], No. 51707/65. Heading H2A. The casing 7 of a motor is cooled by provision of an outer housing 10 separated from the inner housing 7 by cooling fins 29 and extending axially beyond the machine housing to form two end chambers 13, 19 which are connected to air supply and air discharge chambers 16, 14. The openings (not shown) between chambers 14, 16 and the atmosphere may be closed when the machine is not working. The Specification describes a machine of the type disclosed in Specification 864,449, comprising a pole-changing 4/8-pole motor la and a 28-pole motor 1b driving a cable drum via gearing (not shown). An electromagnetic brake 22 is provided. A channel 33a with an outlet 44 collects condensate. |
