Pneumatic directional valve and method of operation

A pneumatic system for operating a hydraulic valve is provided. The system may include: a first piston set; a first connector attached to the first piston operably connecting the first piston; a first spring biasing the first piston to move in an axial direction; a second port in the first housing;...

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Bibliographische Detailangaben
1. Verfasser:	Landrum, Michael T
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS 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 HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING PIPE-LINE SYSTEMS PIPE-LINES STORING OF DISTRIBUTING GASES OR LIQUIDS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL 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 pneumatic system for operating a hydraulic valve is provided. The system may include: a first piston set; a first connector attached to the first piston operably connecting the first piston; a first spring biasing the first piston to move in an axial direction; a second port in the first housing; a second piston set with in a second cavity defined by a second housing; a second connector attached to the second piston, a second spring biasing the second piston to move in an axial direction; a first port in the second housing; and a second port in the second housing configured to provide fluid communication with in the second cavity at a second end of the second piston.