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:
Nov. 03, 2020
Filed:
Oct. 10, 2016
Grundfos Holding A/s, Bjerringbro, DK;
Thomas Blad, Bjerringbro, DK;
Peter Mønster, Randers, DK;
GRUNDFOS HOLDING A/S, Bjerringbro, DK;
Abstract
A pump assembly includes an impeller (), which for rotation is connected to an electrical drive motor () which can be driven in two rotation directions (A, B) and a valve () situated in an inlet of the pump assembly. The valve includes a valve element () movable between at least two switch positions and is connected for movement to a drive element () subjected to the flow produced by the impeller (). The valve element (), in at least a first of the two switch positions, closes an inlet channel () of the pump assembly () and is arranged such that the movement direction into this first switch position corresponds to the flow direction (S, S) through this inlet channel (). A hydraulic system is provided with two circuits and such a pump assembly. The valve serves as a switch-over valve between the two circuits.