VARIABLE-CAPACITY ROTARY TUBE-AND-VANE HYDRAULIC MACHINE Russian patent published in 1998 - IPC

FIELD: mechanical engineering; transferring of liquids; pumps and hydraulic motors for hydraulic drives. SUBSTANCE: hydraulic machine has housing with ring space provided with working medium inlet and outlet channels, and cup-shaped rotor with longitudinal slots. Limiter passes through shaped hole in housing. Axially moving vanes in contact with limiter are fitted in slots. Straight-flow distribution of liquid flows and unloading of rotor surfaces and closer from working medium pressure are provided in hydraulic machine and also compensation for clearances between surfaces of parts limiting the working space. EFFECT: simplified design, increased efficiency. 3 cl, 2 dwg