FIELD: turbine engineering. SUBSTANCE: blade has hollow feather with entrance and exit edges and longitudinal partition, installed in a spaced relation to feather periphery and abutting against blade root portion so that it divides blade interior into front and rear sections; made in front section on pan and wall sides are parallel fins inclined to blade axis in opposite directions contacting each other on tops at intersecting points to form channels; front section communicates with coolant source; exit edge has slots for discharging coolant; partition is intermittent structure made in the form of separated straps which cover part of interfin channels their other part being held open for passing coolant from front to rear section. EFFECT: improved cooling conditions for blade making it useful for operation at high temperatures. 4 cl, 2 dwg
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Authors
Dates
1998-01-10—Published
1995-06-15—Filed