The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 23, 2019
Filed:
Mar. 28, 2018
Grundfos Holding A/s, Bjerringbro, DK;
Klaus Vestergaard Kragelund, Risskov, DK;
Jan Plougmann, Bjerringbro, DK;
Jan Carøe Aarestrup, Bjerringbro, DK;
GRUNDFOS HOLDING A/S, Bjerringbro, DK;
Abstract
A pump assembly () includes a pump unit (), an electrical drive motor () for driving the pump unit (), and a control unit () for controlling the drive motor (). The control unit () includes a frequency converter (), a voltage converter () and a controller (). The voltage converter () is configured to provide an input voltage (U) to the frequency converter (). The input voltage (U) is adjustable within a voltage range between a minimum input voltage (U) and a maximum input voltage (U). The controller () is configured to determine an actual power consumption of at least one of the drive motor (), the frequency converter () and the voltage converter () during operation of the pump unit (). The controller () is further configured to tune the input voltage (U) depending on the determined actual power consumption during operation of the pump unit ().