METHOD FOR INCREASING THE PRESSURE OF VANE TURBOMACHINES AND A DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2023 - IPC F04D29/68 F04D29/30 

FIELD: potential and kinetic energy transferring.

SUBSTANCE: invention relates to methods for transferring potential and kinetic energy to a liquid or gaseous medium, increasing the efficiency of converting the mechanical energy of rotation of the impeller of bladed turbomachines into potential and kinetic energy of the liquid or gaseous medium they move, and can be used in bladed turbomachines of radial and axial types. Part of the fluid supplied through the inlet manifold of volumetric blades is accelerated in their internal cavity and with increased kinetic energy is fed through confuser channels tangentially to the rear surface of volumetric blades, including in the region of their trailing edge, corresponding to the convergence of the working and rear surfaces, in interblade channels of the impeller, mixing it with the liquid or gaseous medium supplied to the interblade channels of the impeller, increasing the kinetic energy of the liquid or gaseous medium due to ejection on the back surface of the volumetric blades in the interblade channels and at the exit from them into the discharge manifold, which eliminates separation vortex formation on the back surface of volumetric blades, combining the vanishing point of flow separation (flow separation) from the back surface of the blade with its trailing edge, which is the trailing critical point, reducing the “edge wake” of the Karman vortex street, which is the main source of energy loss, and also increases the circulation regulation of a liquid or gaseous medium around the volumetric profile of the blades by increasing the speed on its rear surface, contributing to an increase in pressure.

EFFECT: increasing the pressure of bladed turbomachines of low specific speed.

6 cl, 7 dwg