Electrically controlled pilot operated pressure re

专利名称：Electrically controlled pilot operated

pressure regulator valve apparatus andmethod of operation of the same.

发明人：Stoever, Guy T.申请号：EP08163656.5申请日：20080904公开号：EP2034380A3公开日：20140312

专利附图：

摘要：The apparatus uses an electrical signal controlled valve (34), for instance, aproportional solenoid controlled valve, controlled by a controller (40), to control a pilot

operated valve (32) for regulating pressure of fluid in a port (44) thereof in connectionwith a fluid operated system (16, 18, 20, 30). A pressure sensor (38) in connection with theport (44) is used to monitor the regulated pressure. The regulated pressurized fluid inthe port (44) is also used, as required, as a component of the pilot signal. The valves areconfigured such that when the electrical control signal is absent or the electricallycontrolled valve is unresponsive thereto, the presence of pressurized fluid at a

predetermined supply pressure, will automatically operate the pilot operated valve (32)in cooperation with a biasing element () thereof, for delivering pressurized fluid at aminimum or reduced regulated pressure.

申请人：CNH Italia S.p.A.

地址：Via Plava 80 10135 Torino IT

国籍：IT

代理机构：CNH Industrial IP Department

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