Pressure reducing valve

A valve element of a pressure reducing valve includes a taper portion seated on an inner periphery of a valve hole that includes a first area, a second area and a third area in order from an upstream side. The first area is provided such that, when the valve element is open, the height of a passage...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Fujiwara Hidetoshi, Kuroyanagi Munetoshi, Yamashita Akira, Kubo Toshikatsu, Iwaguchi Takashi, Okawachi Eiji, Shima Toshihiko, Kondo Masaaki, Hayashi Hidetsugu
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BASIC ELECTRIC ELEMENTS BLASTING COCKS CONTROLLING DEVICES FOR VENTING OR AERATING ELECTRICITY ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING PHYSICS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY REGULATING SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A valve element of a pressure reducing valve includes a taper portion seated on an inner periphery of a valve hole that includes a first area, a second area and a third area in order from an upstream side. The first area is provided such that, when the valve element is open, the height of a passage defined between the first area and the taper portion gradually reduces toward a downstream side. The second area is provided such that the height of a passage defined between the second area and the taper portion is constant when the valve element is open and the entire second area contacts the taper portion when the valve element is closed. The third area is provided such that, when the valve element is open, the height of a passage defined between the third area and the taper portion gradually increases toward the downstream side.