CONTROL VALVE

A control valve includes a poppet valve moving in an axial direction relative to a seat hole so as to change a flow-path cross-sectional area of the seat hole and a spring disc biasing the poppet valve in a valve opening direction against the return spring. The spring disc includes: a secondary-pres...

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Bibliographische Detailangaben
Hauptverfasser:	NAKAMURA YOSHINARI, TAKEUCHI TOORU
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS CONTROLLING DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING PHYSICS REGULATING SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A control valve includes a poppet valve moving in an axial direction relative to a seat hole so as to change a flow-path cross-sectional area of the seat hole and a spring disc biasing the poppet valve in a valve opening direction against the return spring. The spring disc includes: a secondary-pressure receiving surface being a portion moving along with a movement of the poppet valve, the secondary-pressure receiving surface configured to receive secondary pressure introduced to the secondary port; and a pilot-pressure receiving surface configured to receive pilot pressure serving as a reference pressure. The spring disc deforms elastically in accordance with pressure difference between the secondary pressure and the pilot pressure to cause the poppet valve to move in the axial direction.