METHOD AND DEVICE FOR FILLING A CONTAINER WITH A PREDETERMINED QUANTITY OF FLUID, FILLING MACHINE

摘要

The device comprises a nozzle (14) for delivering a fluid flow into the container (12), a valve (16) comprising a movable valve member (27) for controlling the fluid flow, a means (54) for sending a position control signal to the movable valve member (27), such that said movable valve member (28) is expected to follow an expected displacement vs. time curve which adjusts the quantity of fluid delivered into the container (12) to the predetermined quantity. The device further comprises a sensing means (56) for sensing a point of the actual displacement vs. time curve followed by the movable valve member (27) in response to the position control signal, and a comparing means (58) for comparing the sensed point to the corresponding point of the expected displacement vs. time curve.