PUMP DEVICE FOR FLUID FERTILIZER

摘要

PROBLEM TO BE SOLVED: To provide a pump device for a fluid fertilizer capable of making a stator stably perform deflecting operations so as to stabilize the throughput of the fluid fertilizer. SOLUTION: This pump device is obtained by installing a screwlike rotor 35 having a discharging outlet 42 formed therein and a stator 37 for eccentrically rotating the rotor 35 along the inner peripheral surface and further forming a deflection permitting part D for permitting the deflection of the stator 37 sealed from the side of a discharging end H2 so as not to communicate with the side of the discharging end H2 of the stator 37 in the peripheral direction between a cover 38 and the outer periphery of the stator 37.