Self-sustaining low-temperature pneumatic valve

A precooling filler neck and a control filler neck are arranged at the two ends of a valve body respectively, a meson inlet and a meson outlet are formed in the two sides of the valve body respectively, a valve element is arranged in the valve body, and the control filler neck inputs control gas to...

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Bibliographische Detailangaben
Hauptverfasser:	JIA JINGWEI, HE WEITAO, ZHAO XUANHONG
Format:	Patent
Sprache:	chi ; 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 precooling filler neck and a control filler neck are arranged at the two ends of a valve body respectively, a meson inlet and a meson outlet are formed in the two sides of the valve body respectively, a valve element is arranged in the valve body, and the control filler neck inputs control gas to drive the valve element to slide up and down in the valve body. When the control filler neck is not communicated with control gas, the meson inlet and the meson outlet are disconnected, the valve element and the valve body form a metal conical sealing pair, when the control filler neck inputs the control gas, the meson inlet and the meson outlet are communicated, and the valve element and the valve body form a metal conical sealing pair. The valve element and the pre-cooling filler neck form a metal conical sealing pair, when the filler neck is controlled to withdraw air, the meson inlet is communicated with the meson outlet through medium force, the valve element and the pre-cooling filler neck form a metal conica