METHOD FOR INCREASING PRESSURE AND ECONOMY OF BLADED RADIAL TURBOMACHINES Russian patent published in 2015 - IPC F04D29/22 F04D29/28 

FIELD: machine building.

SUBSTANCE: method to increase energy supplied to medium by the bladed turbomachines comprises formation of the circulating medium flow around the volume blades in the blade channels of the impeller creating pressure rise on the work surface 8 of the blades relatively to their rear surface 9. Part of medium supplied to the blade channels is delivered from them via the input channels 12 from the work surface 8 of the blades to the cylindrical vortex chambers 11. The chambers 11 are installed along full length of the blade, they vortex the medium to the vortex intensive rotating movement and further move via the output channels 13 to surfaces 8, 9. This medium is mixed with medium moved via the blade channels over the entire space, and the mixed flow is supplied to the discharge branch pipe.

EFFECT: increased efficiency of internal energy transfer to the medium, increased economic feasibility of conversion of the mechanical energy of impeller rotation to the input energy of moved medium, reduces metal consumption and size of the turbomachine, as well as of the noise level in range of work modes due to vortex removal at the impeller output and discharge branch pipe input.

2 cl, 3 dwg