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公开(公告)号：US5846062A
公开(公告)日：1998-12-08
申请号：US867047
申请日：1997-06-02
IPC分类号： F04C18/16 , F04C23/00 , F04C25/02 , F04C29/00 , H02K16/00 , F04B17/00 , F01C11/00 , F04C2/00 , F04C11/00
CPC分类号： F04C23/001 , F04C18/16 , F04C29/0085 , F04C2220/12 , F04C2240/51
摘要： A screw type dry vacuum pump having dual shafts is disclosed, whereby the process gas is transported through three compartments, a gas admittance pump section, a central drive motor section, and a gas discharge pump section. By placing the drive motor in the center of the pump, it becomes possible to design a pump having the dual shafts supported only at one end, thus enabling to mount the rotors at the free ends of the pump which are closed with end plates which can be removed easily for servicing the pump sections. Synchronous operation of the dual shaft pump by magnetic coupling enables to lower power consumption and to extend the range of operable pressures.
摘要翻译： 公开了一种具有双轴的螺杆式干式真空泵，由此将工艺气体输送通过三个隔室，气体导纳泵部分，中央驱动电机部分和排气泵部分。 通过将驱动电动机放置在泵的中心，可以设计具有仅在一端支撑的双轴的泵，从而能够将转子安装在泵的自由端，该端部可以用端板封闭， 易于拆卸以便维修泵段。 通过磁耦合同步操作双轴泵，可以降低功耗并扩大可操作压力的范围。
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公开(公告)号：US06447271B2
公开(公告)日：2002-09-10
申请号：US09732739
申请日：2000-12-11
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.
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公开(公告)号：US5814913A
公开(公告)日：1998-09-29
申请号：US425872
申请日：1995-04-20
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： F04C28/08 , F04C29/00 , H02K16/02 , H02K21/16 , H02K29/00 , H02K7/20 , H02K17/44 , H02K19/38
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.
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公开(公告)号：US5779453A
公开(公告)日：1998-07-14
申请号：US778499
申请日：1997-01-03
申请人： Masami Nagayama , Katsuaki Usui , Kozo Matake , Yoshinori Ojima , Genichi Sato , Yasushi Hisabe
发明人： Masami Nagayama , Katsuaki Usui , Kozo Matake , Yoshinori Ojima , Genichi Sato , Yasushi Hisabe
IPC分类号： F04C29/00 , F04C29/04 , H02K1/27 , H02K5/128 , H02K5/20 , H02K5/24 , H02K9/19 , H02K9/22 , H02K11/04 , H02K16/02 , F04B35/04 , F04B53/08
CPC分类号： H02K1/278 , F04C29/0085 , F04C29/045 , H02K1/02 , H02K11/33 , H02K15/03 , H02K16/02 , H02K5/128 , F04C2240/402 , H02K5/20 , H02K5/24 , H02K9/19 , H02K9/22
摘要： A vacuum pump has a pump casing having a suction side where a suction port is located and a discharge side where a discharge port is located, a pump assembly housed in the pump casing and comprising a pair of pump rotors rotatable in synchronism with each other and having respective shafts, and a brushless direct-current motor mounted on the pump casing at a suction side of the pump casing. The motor has a pair of motor rotors comprising respective sets of permanent magnets which are mounted respectively on the shafts, a pair of cans surrounding outer circumferential and end surfaces of the motor rotors in sealing relation to the pump assembly, a motor stator mounted on the cans and housed in a water-cooled motor frame.
摘要翻译： 真空泵具有泵壳体，其具有吸入口所在的吸入侧和排出口所在的排出侧，泵组件容纳在泵壳体中并且包括可以彼此同步旋转的一对泵转子， 具有各自的轴，以及安装在泵壳体上的无刷直流电动机的泵壳的吸入侧。 电动机具有一对电动机转子，其包括分别安装在轴上的各组永磁体，一对围绕电动机转子的外周和端表面的与泵组件密封的一对罐，安装在该组件上的电动机定子 罐头并安装在水冷电机框架中。
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公开(公告)号：US06183218B2
公开(公告)日：2001-02-06
申请号：US09127123
申请日：1998-07-30
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.
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6.发明授权公开(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。
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公开(公告)号：US06902380B2
公开(公告)日：2005-06-07
申请号：US10159287
申请日：2002-06-03
IPC分类号： F04B39/00 , F04B35/00 , F04B37/16 , F04C18/16 , F04C18/18 , F04C23/02 , F04C25/02 , F04C29/00 , H02K1/14 , H02K1/16 , H02K1/22 , H02K1/27 , H02K7/14 , H02K15/03 , H02K21/16 , H02K1/00 , F04B17/03
CPC分类号： H02K1/276
摘要： A vacuum pump has a casing having an inlet port and an outlet port, and a pair of confronting pump rotors which are provided inside the casing and synchronously rotatable for drawing in a gas from the inlet port and discharging the gas from the outlet port. A motor for rotating the confronting pump rotors is a permanent magnet motor having a stator and a motor rotor. The motor rotor has an iron core and permanent magnets disposed within the iron core.
摘要翻译： 真空泵具有具有入口和出口的壳体，以及一对面对的泵转子，其设置在壳体的内部并同步地可旋转，以从入口抽出气体并从出口排出气体。 用于旋转相对的泵转子的电动机是具有定子和电动机转子的永磁电动机。 电动机转子具有设置在铁芯内的铁芯和永磁体。
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公开(公告)号：US20090047142A1
公开(公告)日：2009-02-19
申请号：US12158819
申请日：2007-01-29
申请人： Takashi Hozumi , Nobuhito Miyashita , Takanori Inada , Kozo Matake , Yoshinori Ojima , Susumu Miyake , Katsuaki Usui
发明人： Takashi Hozumi , Nobuhito Miyashita , Takanori Inada , Kozo Matake , Yoshinori Ojima , Susumu Miyake , Katsuaki Usui
CPC分类号： F04C28/24 , F04C18/16 , F04C23/00 , F04C23/001 , F04C25/02 , F04C29/0085 , H02K7/11 , H02K16/00
摘要： The present invention relates to a dry vacuum pump unit capable of achieving ultimate pressure of about 1 Pa. The vacuum pump unit includes a main pump (15) disposed at an outside-pressure side, and a booster pump (16) disposed at a vacuum side. The booster pump (16) and the main pump (15) are coupled in series. The booster pump (16) has a higher pumping speed than that of the main pump (15). Each of the main pump (15) and the booster pump (16) includes a pair of pump rotors (52a and 52b), a casing (50) having an inlet port and an outlet port, and a pair of magnet rotors (54 and 54) rotatable with the pair of pump rotors.
摘要翻译： 本发明涉及能够实现约1Pa的极限压力的干式真空泵单元，真空泵单元包括设置在外压侧的主泵（15）和设置在真空下的增压泵（16） 侧。 增压泵（16）和主泵（15）串联联接。 增压泵（16）的泵送速度高于主泵（15）的泵送速度。 主泵（15）和增压泵（16）中的每一个包括一对泵转子（52a和52b），具有入口和出口的壳体（50）和一对磁体转子（54和 54）可与一对泵转子一起旋转。
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公开(公告)号：US08251678B2
公开(公告)日：2012-08-28
申请号：US12158819
申请日：2007-01-29
申请人： Takashi Hozumi , Nobuhito Miyashita , Takanori Inada , Kozo Matake , Yoshinori Ojima , Susumu Miyake , Katsuaki Usui
发明人： Takashi Hozumi , Nobuhito Miyashita , Takanori Inada , Kozo Matake , Yoshinori Ojima , Susumu Miyake , Katsuaki Usui
IPC分类号： F04B17/00
CPC分类号： F04C28/24 , F04C18/16 , F04C23/00 , F04C23/001 , F04C25/02 , F04C29/0085 , H02K7/11 , H02K16/00
摘要： The present invention relates to a dry vacuum pump unit capable of achieving ultimate pressure of about 1 Pa. The vacuum pump unit includes a main pump (15) disposed at an outside-pressure side, and a booster pump (16) disposed at a vacuum side. The booster pump (16) and the main pump (15) are coupled in series. The booster pump (16) has a higher pumping speed than that of the main pump (15). Each of the main pump (15) and the booster pump (16) includes a pair of pump rotors (52a and 52b), a casing (50) having an inlet port and an outlet port, and a pair of magnet rotors (54 and 54) rotatable with the pair of pump rotors.
摘要翻译： 本发明涉及能够实现约1Pa的极限压力的干式真空泵单元，真空泵单元包括设置在外压侧的主泵（15）和设置在真空下的增压泵（16） 侧。 增压泵（16）和主泵（15）串联联接。 增压泵（16）的泵送速度高于主泵（15）的泵送速度。 主泵（15）和增压泵（16）中的每一个包括一对泵转子（52a和52b），具有入口和出口的壳体（50）和一对磁体转子（54和 54）可与一对泵转子一起旋转。
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公开(公告)号：US07338266B2
公开(公告)日：2008-03-04
申请号：US10519254
申请日：2003-10-02
申请人： Nobuhito Miyashita , Kozo Matake
发明人： Nobuhito Miyashita , Kozo Matake
CPC分类号： F04C29/0064 , F04C18/084 , F04C18/16 , F04C23/008 , F04C29/0085 , H02K7/14 , H02K16/00 , H02K51/00
摘要： A screw pump includes a pair of screw rotors (2a, 2b) having teeth which are held in mesh with each other for drawing and discharging a fluid by rotating the screw rotors (2a, 2b) synchronously in opposite directions. The teeth of the screw rotors (2a, 2b) have the same shape as each other and are coiled helically in opposite directions. The teeth of the screw rotors (2a, 2b) have an axial tooth profile which allows a pair of facing teeth surfaces T of the screw rotors (2a, 2b) to be brought into contact with each other only at a pitch line P when the pair of facing teeth surfaces T are brought into contact with each other.
摘要翻译： 螺杆泵包括一对具有彼此啮合的齿的螺杆转子（2a，2b），用于通过沿相反方向同步旋转螺杆转子（2a，2b）来抽出和排出流体。 螺杆转子（2a，2b）的齿具有彼此相同的形状，并且在相反方向螺旋地卷绕。 螺杆转子（2a，2b）的齿具有轴向齿形，其允许螺旋转子（2a，2b）的一对相对的齿面T仅以间距相互接触 当一对相对的齿面T彼此接触时，线P。
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