Patent ID: 8365763
Filing Date: 2013-02-05
Classification: F16K,G05D,Y10T

Abstract:
1. A pilot-controlled pressure limiting valve with a control element ( 10 ) that may be acted upon in the opening direction, against a first control surface ( 41 ), by a pressure which is to be limited, and that may be acted upon in the closing direction by a spring ( 16 ) and, against a second control surface ( 33 , 34 ), by a control pressure that exists in a control pressure chamber ( 14 ), and with a precontrol valve ( 21 , 22 ), via which the pressure present in the control pressure chamber ( 14 ) may be limited, it being possible to supply control fluid to the control pressure chamber ( 14 ) through the control element ( 10 ) via a control fluid nozzle ( 48 ), wherein, in front of the first control surface (