PUMPING DEVICE FOR CONTAINER INTENDED FOR FLUID MEDIUM Russian patent published in 2016 - IPC B05B11/00 

FIELD: engines and pumps.

SUBSTANCE: invention relates to pumping device for container intended for fluid medium. Pumping device for dispensing fluid from container with fluid medium chamber and piston to reduce fluid medium chamber volume, comprises actuator and head part attached to container. Actuator comprises discharge channel and first cylindrical element. Head pert comprises second cylindrical element located coaxially to first cylindrical element, and bent membrane element, arranged between first and second cylindrical elements. Bent membrane element has inlet and outlet valves so, that first and second cylindrical elements and bent membrane element create variable pump chamber. Outlet valve is arranged with possibility to slide relative to actuating mechanism or arranged with possibility to slide relative to head part so, that between outlet valve and outlet channel back suction chamber is provided with variable volume. Its variable volume is reduced and increased simultaneously with reduction and increase in volume of pump chamber due to pump action.

EFFECT: technical result is simple design, since decreased number of various parts is required, higher operation reliability and prevention of leaks.

12 cl, 8 dwg