POSITIVE-DISPLACEMENT SPHERICAL ROTARY MACHINE Russian patent published in 2000 - IPC

FIELD: mechanical engineering; engines, pumps, compressors. SUBSTANCE: housing of machine consists of two semi-housings. Three rotors forming four working chambers are arranged in spherical space of housing. Central rotor is connected at each side with corresponding sector rotor by means of diametric hinge joint. Housing has four inlet- outlet channels located in pairs in zone of overlapping of spherical surface of each sector rotor at its turning. Inlet-outlet channels, displaced into equatorial area of housing spherical surface, are provided with variable-section nozzle section. Axes of channels are inclined tangentially, inlet channel in direction of machine rotor rotation, and outlet channel, in opposite direction. EFFECT: reduced hydrodynamic resistance in supply main line channels, reduced influence of vortex and cavitation processes when dense media are used. 3 dwg