Hydraulic motor with liquid fertiliser dosing pump - has rocker-operated diverter valve operated through flexible membrane

摘要

The hydraulic motor (1) actuates the dosing pump (2) which meters liquid fertiliser into the irrigation water pipe (4). The motor has a housing (5) with an inlet opening (6) for the pressurised water and a discharge (7) connected to the pipe (4). The housing is divided into two chambers (8,9) by a flexible central membrane (10) which is held in the middle by flanges (11). The flanges are connected to the rod (12) acting on the pump through the link (13). The rocker mechanism (31) connects to the valves (22,23) diverting the water flow through the motor.