EDDY CURRENT DAMPER

An eddy current damper includes a screw shaft movable in an axial direction, a plurality of first permanent magnets, a plurality of second permanent magnets, a cylindrical magnet holding member, a cylindrical conductive member having conductivity, a ball nut which meshes with the screw shaft, and a...

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Bibliographische Detailangaben
Hauptverfasser:	MASUI, Ryohsuke, NOGUCHI, Yasutaka, IMANISHI, Kenji, NOGAMI, Hiroshi
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING BUILDING BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES ENGINEERING ELEMENTS AND UNITS FENCING FIXED CONSTRUCTIONS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MASTS MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING SHOCK-ABSORBERS SPRINGS SWIMMING OR SPLASH BATHS OR POOLS TENTS OR CANOPIES, IN GENERAL THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	An eddy current damper includes a screw shaft movable in an axial direction, a plurality of first permanent magnets, a plurality of second permanent magnets, a cylindrical magnet holding member, a cylindrical conductive member having conductivity, a ball nut which meshes with the screw shaft, and a heat transfer layer which covers a surface of the conductive member opposed to the first permanent magnets and the second permanent magnets. The magnet holding member holds the first permanent magnet and the second permanent magnet. The conductive member is opposed to the first permanent magnets and the second permanent magnets with a gap therebetween. The ball nut is disposed inside the magnet holding member and the conductive member, and is fixed to the magnet holding member or the conductive member. The heat transfer layer has a thermal conductivity higher than that of the conductive member.