FIELD: engines and pumps.
SUBSTANCE: invention relates to power engineering. The screw-turbine consists of the blade supports fitted on an axle parallel to a liquid or gas motion direction. The first support is rigidly fitted on the said axle. Other details are fitted on the axle to allow varying the number of the screw-turbine blades due to aligning the blades details at their within the limits set by limiters. The last detail is coupled with the axle by a spring mechanism. The blades supports are interconnected by springs. Each blade support is connected by the spring to the axle.
EFFECT: higher ratio of utilisation of energy of variable-speed moving gases and liquids and continuous reduction of pressure at the screw turbine blades at increasing loads.
3 cl, 8 dwg
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