FIELD: hydropower engineering. SUBSTANCE: bulb generator has its bulb placed in water stream for conveying turbine water along it and towards turbine and incorporates facility for extracting excess heat produced in the course of its operation; mentioned facility has passages for carrying coolant and/or generator-heated air. Cooling system is independent of quality of river or turbine water. Facility has well- known extrusion members provided with ducts carrying circulating coolant (such as circulating air or any other appropriate coolant) or such ducts are formed upon assembling its components. External surface of extrusion members is facing turbine water flow. EFFECT: reduced manufacturing cost of device parts and their assembly procedures. 12 cl, 18 dwg
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