PISTON PUMP Russian patent published in 2023 - IPC F04B1/04 F04B27/04 

FIELD: pumping systems.

SUBSTANCE: piston pump contains a housing with radially arranged pistons, which are combined into groups displaced relative to each other along the shaft axis, the reciprocating movement of the pistons of each group is carried out by a separate eccentric by means of its spring-loaded cage. In this case, the groups of pistons are located in three parallel planes, and the total area of the pistons of the middle group is equal to the total area of the pistons of the extreme groups with an accuracy corresponding to the allowable imbalance of radial forces, and the mass of the moving parts of the middle group is equal to the total mass of the moving parts of the extreme groups with an accuracy corresponding to the allowable imbalance radial forces.

EFFECT: reducing vibration and increasing the reliability of a piston pump.

2 cl, 2 dwg