Circular eccentric 1 rotates about fixed axis A and is connected by a turning pair to slider 2 which reciprocates along axis y-y in straight guides of piston 3. Piston 3 reciprocates alonig axis x-x with harmonic motion. When eccentric 1 rotates, liquid is delivered in the direction of the arrows, passing through valves 4.
$3825$LHP,RP$