公开(公告)号：US20210222681A1

公开(公告)日：2021-07-22

申请号：US16645022

申请日：2018-09-06

Applicant: Cytiva Sweden AB

Inventor： Andreas Torbjorn Lundin ,  Klas Marteleur ,  Mats Lundkvist ,  Andreas Marcstrom ,  David Gronowitz

IPC: F04B1/047 ,  F04B43/02

Abstract: A multiple cavity reciprocating positive displacement pump (200) comprises a plurality of pump cavities (222), each pump cavity (222) including at least an inlet valve (228) and an outlet valve (231), wherein respective inlet valves (228) are in fluid communication with a common inlet (224) and respective outlet valves (231) are in fluid communication with a common outlet (238), and wherein the pump cavities (222) are arranged about a pump axis (AR) and around said common inlet (224) and said common outlet (238).