FIELD: electrical engineering.
SUBSTANCE: dynamo-electric machine (10) has cylindrical housing (11), cylindrical stator (12) attached to housing inner part (11), cylindrical rotor (13) installed inside stator (12) with formation of gap (G) between them, rotating shaft (14) attached to rotor (13) so that it passes inside rotor (13), and bracket (15) attached to housing (11) and supporting rotating shaft (14) with possibility of rotation. Stator (12) has channel (12a) formed in radial direction in axial part of stator (12) and communicating with said gap (G). In housing (11) there is a first inlet hole (16) through which the cooling air flow (1) is supplied into housing (11) on both end parts of housing (11) in the axial direction, as well as the second inlet opening (17), through which cooling air flow (1) is supplied to said channel (12a) of stator (12). Besides, spiral pipes (21A) and (21B) for cooling water are formed in the middle in axial direction between outer and inner peripheral surface of housing (11) by casting.
EFFECT: improved cooling.
1 cl, 5 dwg
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