ROTARY HYDRAULIC PUMP Russian patent published in 2008 - IPC F04C2/44 

FIELD: hydraulic machine building; hydraulic pumps.

SUBSTANCE: proposed rotary hydraulic pump contains rotor with radial plates sliding along inner surface of housing whose profile is formed by mating arcs of circumferences with centers lying on common axis, arcs being mated by sections forming angle equal to or somewhat greater than half of central angle between plates. Radial plates are made with cylindrical surfaces, each plate is provided with two carriers brought out of its surface parallel to end faces, and two stiffening ribs in form of sectors of circumference whose centers are fitted for rotation on pins installed coaxially in rotor assembled of flat disk whose slots are made arc-shaped, coincide at assembling and form radial slots of rotor, their curvature and axes coincide with curvature and axes of plates. Housing is made up of separate members with equal linear dimensions in pairs rigidly secured between end face walls and forming intake and outlet ports in between whose width is equal to width of plates. End face walls are provided with rectangular section grooves with profile corresponding to profile of inner surface of housing to fit carriers.

EFFECT: increased capacity, improved uniformity of rotation of rotor, reduced power consumption.

4 dwg