ELECTRIC VALVE AND ASSEMBLY METHOD THEREOF

[Object] To provide an electric valve capable of restricting a phenomenon in which a melted brazing material rises along an outer periphery of a valve seat and an assembly method thereof. [Solving Means] An electric valve includes: a valve shaft provided with a valve body; a valve seat provided with...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	HISHIYA, Kohei
Format:	Patent
Sprache:	eng ; fre ; ger
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 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:	[Object] To provide an electric valve capable of restricting a phenomenon in which a melted brazing material rises along an outer periphery of a valve seat and an assembly method thereof. [Solving Means] An electric valve includes: a valve shaft provided with a valve body; a valve seat provided with a valve seat portion with which the valve body comes into contact and from which the valve body separates; a valve main body having the valve seat fixed thereto by soldering; and a stepping motor with a rotor and a stator for elevating the valve shaft, in which a constricted portion is provided at an outer peripheral surface of a side surface of the valve seat.