FIELD: machine building.
SUBSTANCE: cooled blade of turbomachine includes hollow feather with radial channels in inner cavity and with a plug. At least one radial channel of blade feather has outlet channels to the back or to the trough, to the blade feather end and to adjacent radial channels. Plug is installed in the channel on the back or trough side and located perpendicular to blade feather axis with possibility of covering all the channels connecting the inner cavity to external surface of blade feather and channels connecting the blade cavities.
EFFECT: invention improves reliability of turbomachine blade and simplifies blade manufacture owing to additional attachment of ceramic rod and its further etching.
3 dwg
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Authors
Dates
2012-01-10—Published
2010-05-11—Filed