公开(公告)号：US20230067439A1

公开(公告)日：2023-03-02

申请号：US17796153

申请日：2021-01-29

Applicant: AALTO UNIVERSITY FOUNDATION SR

Inventor： Sauli LARKIALA ,  Seppo JÄÄSKELÄINEN

IPC: D01D1/09

Abstract: A pressure-balancing feed-in container arrangement having a container forming a basic body, which container includes a container space in which a piston is arranged in a movable manner, which container space includes a first space portion, i.e. a gas side, and a second space portion, i.e. a material side, which are separated from each other by the piston, a feed pas-sage for feeding material into the material space, and a discharge passage for conducting the material from the material space, and means for connecting a pressure medium source with the gas side of the container, whereby the piston is provided with a piston rod extending towards the gas side and further through a container wall to the exterior of the container, whereby the material feed passage extends through the piston rod and the piston to the material side.