PRESSURE CONTROL VALVE

A valve assembly includes a housing with a supply port receiving working fluid from a working fluid source, a control port connected to a working device, and a vent port for returning working fluid to the working fluid source. A spool with a spool bore in fluid communication with the control port co...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	FISCHER THOMAS HUNTINGTON
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING MECHANICAL ENGINEERING TAPS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A valve assembly includes a housing with a supply port receiving working fluid from a working fluid source, a control port connected to a working device, and a vent port for returning working fluid to the working fluid source. A spool with a spool bore in fluid communication with the control port controls the flow of working fluid between the supply port and the control port and between the control port and the vent port. An actuator assembly selectively alters the position of the spool. In a high pressure mode, the supply port is in fluid communication with the spool bore at a first pressure. In a pressure relief mode, the vent port is in fluid communication with the spool bore. In a pressure regulating mode, the supply port is in fluid communication with the spool bore at a second pressure which is less than the first pressure.