Thermostatic expansion valve with valve seal closing function

The invention discloses a thermostatic expansion valve with valve seal closing function, comprising a valve body, a valve rod and a regulating spring; wherein the valve rod is inserted into the cavity of the valve rod, the bottom thereof is contact with the regulating spring at the lower end of the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LOU JUN, CHEN LIANG, JIANG TINGHOU
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:	The invention discloses a thermostatic expansion valve with valve seal closing function, comprising a valve body, a valve rod and a regulating spring; wherein the valve rod is inserted into the cavity of the valve rod, the bottom thereof is contact with the regulating spring at the lower end of the cavity of the valve body by a valve rod seat, the runner of the valve rod is fixed with a valve port part which is in fit with the regulating section of the valve rod, when system stops working, the regulating section of the valve rod can move toward the valve port part, so as to close thermostatic expansion valve. The opening angle of the valve port part is consistent with the taper of the regulating section of the vale rod, and the regulating section and the valve port part are in surface contact type. The runner of the valve body is internally provided with a valve port part, thus when the system stops working, the valve rod moves upward under the action of elastic force of the regulating spring, the valve rod r