POSITIVE DISPLACEMENT MACHINE (VERSIONS) Russian patent published in 2005 - IPC

FIELD: mechanical engineering.

SUBSTANCE: novelty in proposed device is design of drive, main member of diametrically installed rollers, each getting into concentric bore of one of semicylinders-displacers. Axles of one pair of rollers move towards axles of other pair of rollers, thus making system of semicylinders-displacers execute rocking motions forcing out medium from four spaces outside semicylinders-displacers and one space inside semicylinder-displacers. According to one design version, both pairs of rollers move to each other on their shafts relative to fixed cylinder, and according to other design version, axle of one of pairs of rollers are fixed, and other pair of rollers and cylinder rotate.

EFFECT: provision of compact design, reliability and long service life.

5 cl, 5 dwg