DEVICE FOR PREPARING TWO-COMPONENT COMPOSITIONS IN THE FORM OF A REVERSE PISTON PUMP Russian patent published in 2019 - IPC F04B9/109 B27G11/00 

FIELD: machine building.

SUBSTANCE: invention relates to machine building and can be used in devices for preparation and application of two-component compositions when designing equipment. Proposed plant is made in the form of reversible piston pump, contains pump cylinders with pistons for components, check valves, drive cylinder with piston and piston speed regulator. Reversible piston pump is assembled according to Y-shaped opposite scheme, so that pump cylinders are located on one side, and pistons of pump are rigidly connected to each other and at the same time the following ratios are met: 1.2×(S_a+S_b)<S_p<3.5×(S_a+S_b) and 1.2×(S_ra+S_rb)<S_r<3.5×(S_ra+S_rb), where S_a – piston cylinder piston area for component A, S_b – piston cylinder piston area for component B, S_ra – piston cylinder piston area for component A on the side of rod attachment, S_rt – area of piston of pump cylinder for component B on side of rod attachment, S_p is driving cylinder piston area, S_r is drive cylinder piston area on rod attachment side.

EFFECT: simplified design, reduced prime cost of manufacture and costs during operation, increased convenience of operation.

8 cl, 1 dwg