FIELD: mechanical engineering; turbines.
SUBSTANCE: proposed axial-flow turbine has inlet channel and coaxial opposite rotation wheels, one of which, namely, rotor has outward blades and other wheel, counter rotor, inward blades. Blades of rotor and counterrotor alternate in axial direction. Inlet channel to deliver working medium consists of ring diffuser formed by ring conical hole in cover - support, and ring diffuser formed by two conical rings rigidly attached separately to rotor and counter rotor, or only to counter rotor.
EFFECT: increased efficiency owing to reduction of ventilation losses.
4 dwg
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