Invention Grant
- Patent Title: Valve arrangement
- Patent Title (中): 阀门布置
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Application No.: US12785727Application Date: 2010-05-24
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Publication No.: US08444110B2Publication Date: 2013-05-21
- Inventor: Verner Smidt , Lasse Nicolai Langmaack , Siegfried Zenker , Erik Haugaard , Carsten Christensen , Welm Friedrichsen
- Applicant: Verner Smidt , Lasse Nicolai Langmaack , Siegfried Zenker , Erik Haugaard , Carsten Christensen , Welm Friedrichsen
- Applicant Address: DK Nordborg
- Assignee: Danfoss A/S
- Current Assignee: Danfoss A/S
- Current Assignee Address: DK Nordborg
- Agency: McCormick, Paulding & Huber LLP
- Priority: EP09007191 20090529
- Main IPC: F16K31/363
- IPC: F16K31/363

Abstract:
The invention concerns a valve arrangement (7) comprising a flow path (11) connecting an inlet (9) and an outlet (10), a closing means (12) arranged in said flow path (11), a resetting means and a first pressure in a first pressure chamber (14) acting in a closing direction on said closing means (12), a pressure of said outlet (10) and a second pressure in a second pressure chamber (18) corresponding to a pressure of said inlet (9) when said closing means (12) is closed acting in opening direction on said closing means (12), said first pressure chamber (14) being connectable to the outlet (10) via an auxiliary valve (13). It is intended to keep small a pressure pulse when opening the valve arrangement (7). This is achieved in that the closing means (12) having a first opening state (A) and a second opening state (B), a flow resistance of said closing means (12) in said first opening state (A) being larger than a flow resistance of said closing means in said second opening state (B).
Public/Granted literature
- US20110000555A1 VALVE ARRANGEMENT Public/Granted day:2011-01-06
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