Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hans Kurt Petersen0
Date of Patent
July 27, 2010
0Patent Application Number
105562030
Date Filed
May 24, 2004
0Patent Primary Examiner
Patent abstract
The invention provides a servo valve which is operable in vacuum systems and can be switched between an open and a closed state even by use of low forces. For that purpose, the valve has a closure member (4) moving between the open and a closed position under influence of a difference between a control pressure of a control chamber (13) and the pressures of the intake (2) and outlet (3), respectively. The control chamber is in constant fluid communication with the intake, and in adjustable fluid communication with the outlet to influence the control pressure mainly by the intake pressure and the outlet pressure depending on the adjustable fluid communication. The invention further provides a vacuum system with such a servo valve.
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