ROTARY POSITIVE DISPLACEMENT MACHINE Russian patent published in 2003 - IPC

FIELD: mechanical engineering. SUBSTANCE: invention can be used as hydraulic pump, hydraulic motor, compressor, pneumatic machine or internal combustion engine. Proposed machine contains stationary split housing with spherical space accommodating two rotors in form of spherical segments with shafts secured in housing at angle relative to each other, and movable disk placed between rotors and forming, together with rotor, Hooke's joint and dividing inner space of machine into four variable-volume chambers. Semi- cylindrical boss aligning with slot in top of one of rotors is made at one side of disk. Semi-cylindrical slots are made at other side of disk square to boss and also in top of adjoining rotor. Intermediate shaft is arranged in said slots. Axes of semi-cylinders forming slots in disk and rotor, as well as axes of semi-cylinders forming intermediate shaft, are parallel. Process of assembling and manufacture of machine does not required higher accuracy. EFFECT: no deformation of parts and considerable friction in operation. 2 dwg