MULTI-STAGE VORTEX TURBO-MACHINE Russian patent published in 1995 - IPC

FIELD: power engineering. SUBSTANCE: efforts, resulting from fluid pressure in working chambers, act on the rotor from opposite sides relatively a symmetry plane. The efforts are mutually annihilated when working chambers are positioned symmetry with respect to the plane of cross- section of the rotor. Pressure difference between working chambers resulting from different back crossflows of fluid through the suction opening is compensated owing to a difference between resistances of the delivery openings. The difference between the back crossflows of fluid through the suction branch pipe is due to increasing width of gaps between rings of a separator and disks of the rotor in the direction of the floating bearing of the shaft. The gaps are made for compensation of temperature deformations of the members in operation. EFFECT: enhanced efficiency. 3 cl, 1 dwg