公开(公告)号：US11221149B2

公开(公告)日：2022-01-11

申请号：US15776560

申请日：2016-11-14

Applicant: Xylem IP Management S.à r.l.

Inventor： Oliver Laing

IPC: F24D19/10 ,  F04D15/00 ,  F04D15/02 ,  F24D17/00 ,  F04D13/06

Abstract: A pump device is proposed for arrangement on a recirculation line of an industrial water system including a feed pump, a check valve and a bypass line for the check valve. The bypass line is arranged in parallel to the check valve and wherein a combination of the check valve and bypass line is arranged in series to the feed pump.

公开(公告)号：US11111926B2

公开(公告)日：2021-09-07

申请号：US15776562

申请日：2016-11-14

Applicant: Xylem IP Management S.à r.l.

Inventor： Oliver Laing

IPC: F04D15/02 ,  F04D29/58

Abstract: A feed pump to increase the pressure in a line includes a pumping chamber for a pumping medium. At least one temperature sensor, which is arranged in the feed pump, is allocated to the pumping chamber and is in thermal contact with the pumping chamber for determining a temperature of the pumping medium in the pumping chamber. A temperature control device is allocated to the at least one temperature sensor and by which defined temperature conditions can be created in an area surrounding the at least one temperature sensor. An evaluation device to which the at least one temperature sensor is coupled for signal purposes uses the data from the at least one temperature sensor to determine whether pumping medium is flowing through the pumping chamber or not.