公开(公告)号：US20240141894A1

公开(公告)日：2024-05-02

申请号：US18548358

申请日：2021-03-03

Applicant: ABB Schweiz AG

Inventor： Arnulf Krogedal ,  Geir Krogedal ,  Jakob Trydal

IPC: F04C14/28 ,  F04C2/18 ,  F04C13/00

CPC classification number: F04C14/28 ,  F04C2/18 ,  F04C13/005 ,  B25J11/0075 ,  F04C2240/81 ,  F04C2270/0525 ,  F04C2270/16 ,  F04C2270/18 ,  F04C2270/21 ,  F04C2270/78 ,  F04C2270/80

Abstract: A method of handling a gear pump, the gear pump including a driving gear wheel having a plurality of driving teeth and a driven gear wheel having a plurality of driven teeth meshing with the driving teeth, the method including controlling the gear pump in a testing mode including commanding driving of the gear pump to pump liquid towards a downstream device and commanding an increase of rotational speed of the gear pump; monitoring rotation values indicative of the rotational speeds during the testing mode; monitoring pressure values by means of at least a downstream pressure sensor during the testing mode, the downstream pressure sensor being arranged to measure a downstream pressure of the liquid between the gear pump and the downstream device; and determining at least one operational condition of the gear pump based on the pressure values and the rotation values.