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    Multishaft electric motor and positive-displacement pump combined with such multishaft electric motor
    2.
    发明授权
    Multishaft electric motor and positive-displacement pump combined with such multishaft electric motor 失效
    多轴电动机和正排量泵结合这样的多电动机

    公开(公告)号：US06761542B2

    公开(公告)日：2004-07-13

    申请号：US10195454

    申请日：2002-07-16

    申请人： Yoshinori Ojima ,  Kozo Matake ,  Genichi Sato ,  Yasushi Hisabe ,  Masami Nagayama ,  Katsuaki Usui ,  Hiroaki Ogamino

    发明人： Yoshinori Ojima ,  Kozo Matake ,  Genichi Sato ,  Yasushi Hisabe ,  Masami Nagayama ,  Katsuaki Usui ,  Hiroaki Ogamino

    IPC分类号： F04B3504

    CPC分类号： F04C28/08 ,  F04C29/0085 ,  H02K16/02 ,  H02K21/16 ,  H02K29/03

    摘要： A multishaft electric motor has a plurality of juxtaposed rotors having respective permanent magnets disposed therearound, and a plurality of sets of armature elements disposed fully circumferentially around the rotors, respectively, the permanent magnets of adjacent two of the rotors having a plurality of pairs of unlike magnetic poles for magnetically coupling the rotors through the armature elements between the permanent magnets. A positive-displacement vacuum pump includes a casing, a pair of pump rotors rotatably disposed in the casing in confronting relation to each other, and a two-shaft electric motor coupled to the pump rotors for rotating the pump rotors in opposite directions. The two-shaft electric motor may comprise a pair of juxtaposed rotors and a pair of sets of armature elements disposed fully circumferentially around the rotors, respectively.

    摘要翻译： 多层电动机具有多个并置的转子，其具有设置在其周围的各自的永磁体，以及分别围绕转子完全周向设置的多组电枢元件，相邻两个转子的永磁体具有多对不同的 用于通过永磁体之间的电枢元件将转子磁耦合的磁极。 正排量真空泵包括壳体，一对可旋转地设置在壳体中的泵转子，彼此面对的关系;以及耦合到泵转子的用于沿相反方向旋转泵转子的双轴电动机。 双轴电动机可以包括一对并置的转子和分别围绕转子完全周向设置的一对电枢元件。

    Multistage positive-displacement vacuum pump
    6.
    发明授权
    Multistage positive-displacement vacuum pump 失效
    多级正排量真空泵

    公开(公告)号：US5816782A

    公开(公告)日：1998-10-06

    申请号：US921462

    申请日：1997-09-02

    申请人： Masami Nagayama ,  Katsuaki Usui ,  Hiroaki Ogamino

    发明人： Masami Nagayama ,  Katsuaki Usui ,  Hiroaki Ogamino

    IPC分类号： F04C23/00 ,  F04B35/04 ,  F04C25/02

    CPC分类号： F04C23/001 ,  F04C2240/30

    摘要： A multistage positive-displacement vacuum pump which is preferably used in the fabrication of semiconductor devices and can be operated from atmospheric pressure. The vacuum pump comprises a pump casing, a pump assembly housed in the pump casing and comprising a pair of pump rotors rotatable in synchronism with each other and arranged in multiple stages, and an intermediate pressure chamber provided between a preceding stage and a subsequent stage in the pump casing. The shaft portions of the pump rotors located between the preceding and subsequent stages are located in the intermediate pressure chamber.

    摘要翻译： 一种多级正排量真空泵，其优选用于制造半导体器件并可从大气压力下操作。 真空泵包括泵壳体，容纳在泵壳体中的泵组件，并且包括可以彼此同步旋转并且多级布置的一对泵转子，以及设置在前级和后级之间的中间压室 泵壳。 位于前一级和后级之间的泵转子的轴部分位于中间压力室中。

    VACUUM PUMP
    7.
    发明申请
    VACUUM PUMP 审中-公开
    真空泵

    公开(公告)号：US20140112815A1

    公开(公告)日：2014-04-24

    申请号：US14119858

    申请日：2012-05-29

    申请人： Soichi Kudara ,  Yasuhiro Niimura ,  Masami Nagayama

    发明人： Soichi Kudara ,  Yasuhiro Niimura ,  Masami Nagayama

    IPC分类号： F04C13/00 ,  F04C18/12

    CPC分类号： F04C13/007 ,  F04C18/126 ,  F04C23/001 ,  F04C25/02 ,  F04C27/009 ,  F04C2220/12 ,  F04C2220/30 ,  F04C2220/40 ,  F04C2240/30 ,  F04C2280/02

    摘要： A vacuum pump (10) includes a pump casing (56) having an inlet port (54a), an outlet port (54b), and pump chambers (50a-50f) defined therein, rotational shafts 60 having opposite ends rotatably supported by bearings (84a, 84b) on the pump casing (56) and extending longitudinally in the pump casing (56), and rotors (62a-62f) housed in the pump chambers (50a-50f) and coupled to the rotational shafts (60) for rotation in unison with the rotational shafts (60). The pump casing (56) has an atmosphere-vented compartment (52) defined therein which is held in fluid communication with the outlet port (54b) of the pump casing (56) and vented to the atmosphere.

    摘要翻译： 真空泵（10）包括具有入口（54a），出口（54b）和限定在其中的泵室（50a-50f）的泵壳（56），具有由轴承可旋转地支撑的相对端的旋转轴60 84a，84b），并且在泵壳体（56）中纵向延伸，以及容纳在泵室（50a-50f）中并且联接到旋转轴（60）以旋转的转子（62a-62f） 与旋转轴（60）一致。 泵壳体（56）具有限定在其中的大气排放室（52），其与泵壳体（56）的出口（54b）保持流体连通并排放到大气中。

    VACUUM PUMP
    8.
    发明申请
    VACUUM PUMP 审中-公开
    真空泵

    公开(公告)号：US20140112814A1

    公开(公告)日：2014-04-24

    申请号：US14119851

    申请日：2012-05-29

    申请人： Soichi Kudara ,  Masami Nagayama

    发明人： Soichi Kudara ,  Masami Nagayama

    IPC分类号： F04C25/02 ,  F04C18/12

    CPC分类号： F04C25/02 ,  F04C18/126 ,  F04C23/001 ,  F04C29/04 ,  F04C2220/30 ,  F04C2240/30 ,  F04C2280/02

    摘要： A vacuum pump (10) has a pump casing (54) including pump chambers (50a-50f) held in fluid communication with each other and arrayed in a longitudinal direction thereof, an inlet port (52a) and an outlet port (52b), a rotational shaft (58) rotatably supported at opposite ends thereof and extending in the longitudinal direction of the pump casing (54), and rotors (60a-60f) housed in the pump chambers (50a-50f) and coupled to the rotational shaft (58). The pump casing (54) includes a first thermally conductive member (72) extending parallel to the rotational shafts (58) substantially the full length of the pump casing (54) in the longitudinal direction thereof, and a second thermally conductive member (74) positioned near an end of the first thermally conductive member (72) at the outlet port (52b) and extending in a transverse direction of the pump casing (54).

    摘要翻译： 真空泵（10）具有泵壳（54），泵壳（54）包括彼此保持流体连通且沿其长度方向排列的泵室（50a-50f），入口（52a）和出口（52b） 旋转轴（58），其可旋转地支撑在其相对端并在泵壳体（54）的纵向方向上延伸;以及转子（60a-60f），容纳在泵室（50a-50f）中并联接到旋转轴 58）。 所述泵壳体（54）包括在所述泵壳体（54）的纵向方向上大致整个长度的平行于所述旋转轴（58）延伸的第一导热构件（72）和第二导热构件（74） 在所述出口（52b）处位于所述第一导热构件（72）的端部附近并沿所述泵壳体（54）的横向方向延伸。