US 11,933,307 B2
Method for operating an electronically controlled pump assembly
Henrik Juul Nielsen, Hjortshøj (DK); and Mathis Dahlqvist, Vejle Øst (DK)
Assigned to GRUNDFOS HOLDING A/S, Bjerringbro (DK)
Filed by GRUNDFOS HOLDING A/S, Bjerringbro (DK)
Filed on Dec. 22, 2022, as Appl. No. 18/086,867.
Application 18/086,867 is a continuation of application No. 16/474,929, granted, now 11,566,625, previously published as PCT/EP2017/083381, filed on Dec. 18, 2017.
Claims priority of application No. 16 207 574 (EP), filed on Dec. 30, 2016.
Prior Publication US 2023/0129537 A1, Apr. 27, 2023
Int. Cl. F04D 13/06 (2006.01); F04D 15/00 (2006.01)
CPC F04D 13/06 (2013.01) [F04D 15/0088 (2013.01); F04D 15/0094 (2013.01); F05D 2270/20 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method for operating an electronically controlled centrifugal circulation pump assembly, the method comprising the steps of:
registering operating data of the circulation pump assembly during the operation of the circulation pump assembly, characterized in that
examining, after a predefined time of operation and on a basis of the registered operating data, whether the pump assembly can be operated in an energetically more favorable region of operation, the energetically more favorable region being determined from a relation of hydraulic power with electric power of the pump assembly, and upon ascertaining that the pump assembly can be operated in an energetically more favorable region of operation, issuing a signal to change the setting parameters.