SOLENOID VALVE AND ITS MANUFACTURING METHOD

PROBLEM TO BE SOLVED: To attain low cost and high reliability, by increasing attraction force, in a solenoid valve using a cylindrical stator with a formed thin part. SOLUTION: Surface treatment for reducing magnetic permeability is applied only to the thin part 13 to be magnetically saturated in th...

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Bibliographische Detailangaben
Hauptverfasser:	MIYAMOTO YUTAKA, ACHINAMI MUNEHISA
Format:	Patent
Sprache:	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:	PROBLEM TO BE SOLVED: To attain low cost and high reliability, by increasing attraction force, in a solenoid valve using a cylindrical stator with a formed thin part. SOLUTION: Surface treatment for reducing magnetic permeability is applied only to the thin part 13 to be magnetically saturated in the stator 1 by a low electric current. According to this, the magnetic permeability of the thin part 13 is reduced, and since magnetic permeability of a part except for the thin part 13 among the stator 1 is not reduced, the attraction force can be increased. Since a part of the stator 1 is magnetically saturated even by the low electric current, a permanent magnet is not used and a hole is not formed in the thin part so that an inexpensive and highly reliable solenoid valve can be provided. COPYRIGHT: (C)2009,JPO&INPIT