ELECTRIC VALVE AND REFRIGERATION CYCLE SYSTEM

The invention provides an electric valve and a refrigeration cycle system. In an electrically operated valve in which a sub-valve port (33a) is opened and closed by a needle valve (4) and a main valveport (13a) is opened and closed by a main valve body (3) in which the needle valve (4) is mounted, s...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KITAMI YUKI, KOIKE RYOJI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS COMBINED HEATING AND REFRIGERATION SYSTEMS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES LUBRICATING MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	The invention provides an electric valve and a refrigeration cycle system. In an electrically operated valve in which a sub-valve port (33a) is opened and closed by a needle valve (4) and a main valveport (13a) is opened and closed by a main valve body (3) in which the needle valve (4) is mounted, sliding resistance between the needle valve (4) and the main valve body (3) is reduced, workload isreduced, and appropriate flow rate control is performed. The electrically operated valve is provided with: a main valve body (3) for opening and closing a main valve port (13a) of a main valve chamber(1R); a needle valve (4) that changes the degree of opening of the sub-valve port (33a) of the main valve body (3); and a drive unit (5) for driving the needle valve (4) to advance and retreat in thedirection of the axis (L) via a screw feed mechanism (5B) by the rotation of the magnetic rotor (52). A needle valve (4) is inserted into a sub-valve guide hole (32a) of a main valve body (3), and alubricating member (10) is pr