公开(公告)号：CA3115512A1

公开(公告)日：2021-10-21

申请号：CA3115512

申请日：2021-04-19

Applicant: ROPER PUMP COMPANY

Inventor： REYNOLDS CODY RICHARD ,  COGHLAN EDMOND ,  ANDERSON TYSON BENTLEY

IPC: F04C2/107 ,  F03C2/00 ,  F04C13/00 ,  F04C15/00

Abstract: A stator segment is provided for a helical gear device. The stator segment includes a stator tube and modular stator inserts. The stator tube has an inner profile with at least two internal sides that extend longitudinally along an interior of the stator tube. The modular stator inserts each have an outer profile that substantially matches and fits within the inner profile of the stator tube. The modular stator inserts also each have an interior helical profile that defines a central opening. The modular stator inserts are configured to be removably inserted longitudinally into the stator tube along the inner profile of the stator tube. The inner profile aligns the modular stator inserts to form a continuous helical chamber and prevents rotation of the modular stator inserts relative to the stator tube.