POSITIVE DISPLACEMENT PUMP Russian patent published in 2002 - IPC

FIELD: mechanical engineering; liquid handling devices. SUBSTANCE: proposed positive displacement pump has housing with suction and delivery holes, working chamber, cover, working member and crank. Profile of working chamber is formed by arcs of two intersecting circumferences. Common working member is made in form of disks rigidly coupled in point of contact of external surfaces, being freely fitted on crank axle. Center of crank rotation coincides with center of arc of working chamber circumference. Suction and delivery holes are made for complete closing by disk coupled with crank in one of extreme positions. EFFECT: simplified design of pump. 2 cl, 7 dwg