PUMP Russian patent published in 2006 - IPC F04B15/00 

FIELD: mechanical engineering; piston pumps.

SUBSTANCE: device is designed for pumping thick liquids with abrasives. According to invention, housing is provided with hole to accommodate cylinder with possibility of its fixing by split joint and disconnection of delivery header from suction space and atmosphere. Cylinder rod is secured on drive by quickly detachable lock. Delivery valve and seat are installed inside cylinder before cover secured by split joint. At least one through radial hole is made in cylinder for communicating delivery space with delivery header, and longitudinal slots are made for communicating working space with suction space.

EFFECT: improved reliability, reduced labor input at servicing owing to make of each cylinder in form of quickly detachable module at Manufacturer improved suction capacity of pump and prevention of pulsating load on cover.

5 cl, 7 dwg