CENTRIFUGAL TURBINE Russian patent published in 2019 - IPC F01D11/02 F01D11/08 F01D1/08 

FIELD: machine building.

SUBSTANCE: invention relates to power, transport and aircraft engine building and can be used in technical facilities, whereas energy source it is expedient to use high-temperature high-speed centripetal low-power turbine with low volume flow of working medium. Invention discloses centripetal turbine, comprising housing, radial-axial turbine wheel equipped with blade unit. On inner surface of housing, where tangent line to this surface in meridian section forms with angle of turbine angle γ, where 25° ≤ γ ≤ 30°, annular projection is made, covering the gap between housing and blades of impeller, besides, annular projection is made with flat surface located along normal to incident flow of working medium, at that, the blades of the impeller in the meridian section are repeated the shape of the inner surface of the housing to the projection, at that behind the ledge along the flow of the working body the blades are made with a cut along the external edge, and the depth of the cut is equal to the value of the projection.

EFFECT: technical result of proposed invention consists in reduction of leaks of working medium through gap between blades of impeller and housing and, consequently, in improvement of efficiency of turbine.

3 cl, 1 dwg