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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.:

US 10443860 B1

PDFFull Text
Date of Patent:
Oct. 15, 2019

Filed:

Dec. 16, 2015

Hydraulic system

Applicant:

Grundfos Holding A/s, Bjerringbro, DK;

Inventors:

Thomas Blad, Bjerringbro, DK;

Christian Blad, Aalborg, DK;

Assignee:

GRUNDFOS HOLDING A/S, Bjerringbro, DK;

Attorney:

McGlew and Tuttle, P.C.

Primary Examiner:

Gregory L Huson

Assistant Examiner:

Daniel E Namay

Int. Cl.
CPC ...
F24D 19/10 (2006.01); F04D 13/06 (2006.01); F04D 15/00 (2006.01); F24D 3/08 (2006.01); F04D 29/42 (2006.01); F16K 11/00 (2006.01);
U.S. Cl.
CPC ...
F24D 19/1012 (2013.01); F04D 13/06 (2013.01); F04D 13/0606 (2013.01); F04D 15/0005 (2013.01); F04D 15/0022 (2013.01); F04D 15/0066 (2013.01); F04D 29/4293 (2013.01); F16K 19/003 (2013.01); F24D 3/08 (2013.01); F24D 19/1066 (2013.01); Y02B 30/745 (2013.01);
Abstract

A hydraulic system includes at least one circulation pump assembly () provided with a speed controller (), at least one hydraulic circuit (A, B) connected to the circulation pump assembly () as well as at least one mechanical switch device () which is mechanically subjected to pressure by a fluid in the hydraulic circuit (A, B) and which can be moved into at least two different switch positions. The mechanical switch device () moves by the circulation pump assembly () hydraulic coupling via the fluid. The speed controller is configured to initiate a movement of the switch device (), by at least one hydraulic force acting upon the switch device () and causing a movement of the switch device () via the hydraulic circuit, via a speed adaptation of the circulation pump assembly ().

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