发明名称 Electric motor with hydrodynamic pressure and magnetic thrust bearings
摘要 In an electric motor unit, a spindle is rotatably supported by bearing sections of a dynamic-pressure type, and is floated along its axis by a magnetic thrust bearing. At the bearing sections, air current layers are formed in the gaps between journals of the spindle and bearings by elongated parallel grooves formed along the axis, and the spindle is supported by pressure distributed over the air current layers. In the thrust bearing, rotor magnets fixed to the spindle are attracted to stator magnets fixed to the housing and surrounding the rotor magnets. The spindle is floated along the axis by the attraction between the magnets.
申请公布号 US4538081(A) 申请公布日期 1985.08.27
申请号 US19830464148 申请日期 1983.02.07
申请人 TOKYO SHIBAURA DENKI KABUSHIKI KAISHA 发明人 KAMIYA, MASASHI;SUMIYA, MITSUO;YAMAGUCHI, RYOJI
分类号 F16C32/00;F16C39/06;G02B26/12;H02K7/09;(IPC1-7):H02K7/09 主分类号 F16C32/00
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