HYDRAULIC PULSATOR Russian patent published in 1999 - IPC

FIELD: generation of pulsations of working medium; hydropulsating vibratory machines; hydropulsating presses and hydropulsating vibrators. SUBSTANCE: rotor with blade and contactor made in form of roller with recess are arranged in housing. According to one version, rotor is made in form of shaft with teeth in center portion and blade consisting of two half-blades fitted on this shaft for enhancing sealing of displacement hydraulic mechanism. Half-blades are movable in axial and radial directions; contactor is provided with profiled recess and external teeth in center portion. Mechanism used for synchronization of rotation and sealing line of contact of rotor and contactor consists of toothed rim of rotor, external tooth of half-blades and toothed rim of contactor. According to second version, half-blades of rotor are mounted on radial pin by means of transversal spring-loaded pin. Rotation synchronizing mechanism is made of two U-shaped gears fitted on rotor and toothed rim of contactor. EFFECT: enhanced volumetric efficiency; enhanced operational reliability; simplified construction. 4 cl, 6 dwg