Directional-control valve

A directional-control valve for fluid power control systems, particularly pneumatic-power control systems, which includes a plurality of pairs of valve-seat members which are made of resilient material and arranged coaxially in a row within a valve-body, and also includes a poppet-spool including a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KONDO, SHIGEJI
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 HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A directional-control valve for fluid power control systems, particularly pneumatic-power control systems, which includes a plurality of pairs of valve-seat members which are made of resilient material and arranged coaxially in a row within a valve-body, and also includes a poppet-spool including a rod and a plurality of poppets which are arranged between the seat members of each pair. The axial movement of the poppet-spool makes the poppets simultaneously open one, and close the other seat member of each pair. The valve-construction of the present invention provides s short valve-stroke and easy valve-operation. The resilient valve-seat member provides long valve-life and also reliable sealing, which results in accurate directional-control.