ADJUSTABLE PILOT-ACTUATED VALVE AND HYDRAULIC SYSTEM COMPRISING SUCH A VALVE

An adjustable pilot-actuated valve (230) is provided. The adjustable pilot-actuated valve (230) comprises a housing (331) forming a valve chamber (332), a first piston chamber (338), and a second piston chamber (340). The adjustable pilot-actuated valve (230) further includes a valve spool (333) mov...

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Bibliographische Detailangaben
Hauptverfasser:	BROOKS, JONATHAN, KIRBY, ANDY
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACTUATING-FLOATS BLASTING CHECKS FOR WINGS COCKS DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL KEYS LIGHTING LOCKS MECHANICAL ENGINEERING SAFES SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS WINDOW OR DOOR FITTINGS WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING
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Beschreibung
Zusammenfassung:	An adjustable pilot-actuated valve (230) is provided. The adjustable pilot-actuated valve (230) comprises a housing (331) forming a valve chamber (332), a first piston chamber (338), and a second piston chamber (340). The adjustable pilot-actuated valve (230) further includes a valve spool (333) movable within the valve chamber (332). A first piston (334) is movable within the first piston chamber (338) and includes a first side (334a) and a second side (334b) with the second side (334b) coupled to the valve spool (333). A second piston (335) is movable within the second piston chamber (340) and includes a first side (335a) and a second side (335b) with the second side (335b) coupled to the valve spool (333). The adjustable pilot-actuated valve (230) further includes a first pilot port (234) formed in the housing (331) to receive a first pilot pressure and is in fluid communication with the first side (334a) of the first piston (334) and a second pilot port (235) formed in the housing (331) to receive a second pilot pressure and is in fluid communication with the first side (335a) of the first piston (335). A bias port (236) is formed in the housing (333) to receive a bias pressure and is in fluid communication with the second side (334b) of the first piston (334).