公开(公告)号：US06559568B2

公开(公告)日：2003-05-06

申请号：US10068833

申请日：2002-02-06

申请人： Yasushi Maejima ,  Masayoshi Takamine

发明人： Yasushi Maejima ,  Masayoshi Takamine

IPC分类号： H02K709

CPC分类号： F16C32/0446 ,  F04D19/048 ,  F16C32/0459 ,  F16C32/0489 ,  F16C2360/45

摘要： To provide a magnetic bearing type vacuum pump, which can suppress the generation of eddy current on a shaft to be small in heat generation on the shaft and to be excellent in efficiency. In a shaft, an electromagnet target composing a target for electromagnets composing a radial magnetic bearing portion, a radial sensor target composing a target for a coil detecting a displacement of the shaft in the vicinity of the magnetic bearing portion and a collar between the electromagnet target and the radial sensor target are composed of laminated steel plates, so that the generation of eddy current caused on the shaft due to magnetic field generated in the magnetic bearing portion is reduced.

公开(公告)号：US06890145B2

公开(公告)日：2005-05-10

申请号：US10294826

申请日：2002-11-14

申请人： Masayoshi Takamine ,  Yasushi Maejima ,  Shinji Kawanishi ,  Yoshiyuki Sakaguchi ,  Satoshi Okudera ,  Kenji Kabata ,  Yutaka Inayoshi

发明人： Masayoshi Takamine ,  Yasushi Maejima ,  Shinji Kawanishi ,  Yoshiyuki Sakaguchi ,  Satoshi Okudera ,  Kenji Kabata ,  Yutaka Inayoshi

IPC分类号： F04D29/00 ,  F04D19/04 ,  F04D29/02 ,  F04D29/66

CPC分类号： F04D29/023 ,  F04D19/04 ,  F04D29/662 ,  F05D2230/53 ,  F05D2260/95 ,  F05D2300/171 ,  F05D2300/21 ,  F05D2300/40 ,  Y10S416/50

摘要： A vacuum pump has a pump case having a gas suction port at an upper surface thereof, a rotor shaft mounted in the pump case for undergoing rotation, and a rotor connected to the rotor shaft for rotation therewith. The rotor has inner and outer circumferential surfaces coated with a corrosion-resistant film treated by nonelectrolytic plating. Rotor blades are disposed in the pump case and are integrally connected to the outer circumferential surface of the rotor. Stator blades are integrally connected to the pump case so that the rotor blades and the stator blades are alternately positioned and arranged. A balancing body is disposed on the inner circumferential surface of the rotor for balancing the rotor during rotation thereof.

摘要翻译： 真空泵具有在其上表面具有气体吸入口的泵壳体，安装在用于旋转的泵壳体中的转子轴，以及连接到转子轴上以与其一起旋转的转子。 转子具有涂覆有通过非电解电镀处理的耐腐蚀膜的内外表面。 转子叶片设置在泵壳体中并与转子的外周面一体地连接。 定子叶片一体地连接到泵壳体，使得转子叶片和定子叶片交替地定位和布置。 平衡体设置在转子的内周面上，用于在转子旋转期间平衡转子。