HYDRAULIC VALVE

A hydraulic valve includes: two spools arranged in a valve main body individually movable in an axial direction and in parallel with each other, end parts thereof being housed in a common pressure chamber, and having respective guide shaft parts on the end parts thereof; a return spring provided bet...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Tamura, Shunsuke, Miyamoto, Yuusuke, Hishinuma, Yuichi
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 HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A hydraulic valve includes: two spools arranged in a valve main body individually movable in an axial direction and in parallel with each other, end parts thereof being housed in a common pressure chamber, and having respective guide shaft parts on the end parts thereof; a return spring provided between each of the spools and the valve main body, so that a flow of oil is controlled by a movement of the two spools with respect to the valve main body against a spring force of each of the return springs in a case where a pilot pressure is supplied to the pressure chamber; and a coupling member that is arranged in bridged between the guide shaft parts of the two spools and that is pressed in a direction of becoming closer to the spools by the return springs.