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:
May. 21, 2013
Filed:
May. 24, 2010
Verner Smidt, Broager, DK;
Lasse Nicolai Langmaack, Nordborg, DK;
Siegfried Zenker, Kirchseeon, DE;
Erik Haugaard, Graasten, DK;
Carsten Christensen, Broager, DK;
Welm Friedrichsen, Nordborg, DK;
Verner Smidt, Broager, DK;
Lasse Nicolai Langmaack, Nordborg, DK;
Siegfried Zenker, Kirchseeon, DE;
Erik Haugaard, Graasten, DK;
Carsten Christensen, Broager, DK;
Welm Friedrichsen, Nordborg, DK;
Danfoss A/S, Nordborg, DK;
Abstract
The invention concerns a valve arrangement () comprising a flow path () connecting an inlet () and an outlet (), a closing means () arranged in said flow path (), a resetting means and a first pressure in a first pressure chamber () acting in a closing direction on said closing means (), a pressure of said outlet () and a second pressure in a second pressure chamber () corresponding to a pressure of said inlet () when said closing means () is closed acting in opening direction on said closing means (), said first pressure chamber () being connectable to the outlet () via an auxiliary valve (). It is intended to keep small a pressure pulse when opening the valve arrangement (). This is achieved in that the closing means () having a first opening state (A) and a second opening state (B), a flow resistance of said closing means () in said first opening state (A) being larger than a flow resistance of said closing means in said second opening state (B).