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:
Sep. 02, 2025
Filed:
Nov. 16, 2022
Applicant:
Grundfos Holding A/s, Bjerringbro, DK;
Inventors:
Torben Nielsen, Bjerringbro, DK;
Jesper Thørring Damgaard, Bjerringbro, DK;
Assignee:
GRUNDFOS HOLDING A/S, Bjerringbro, DK;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F04D 15/00 (2006.01);
U.S. Cl.
CPC ...
F04D 15/0088 (2013.01); F05D 2260/80 (2013.01);
Abstract
Disclosed herein are embodiments of an apparatus for detecting hydraulic shock events in a fluid system, the fluid system comprising a pump assembly, the pump assembly comprising a pump, in particular a centrifugal pump, and a pump motor, the apparatus comprising means for monitoring a pump speed of the pump and/or for monitoring a motor frequency; and a processing unit configured to detect a variation in the monitored pump speed and/or motor frequency; and detect a hydraulic shock event from the detected variation in the monitored pump speed and/or motor frequency.