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51. 发明申请

US20050025640A1 Vacuum pump and semiconductor manufacturing apparatus 失效
标题翻译：真空泵和半导体制造装置
公开(公告)号：US20050025640A1
公开(公告)日：2005-02-03
申请号：US10887234
申请日：2004-07-09
申请人： Shinichi Sekiguchi , Matsutaro Miyamoto
发明人： Shinichi Sekiguchi , Matsutaro Miyamoto
IPC分类号： F04D29/056 , F04D17/16 , F04D19/04 , F04D29/058 , F04B17/00
CPC分类号： F04D29/058 , F04D17/168 , F04D19/046 , F04D23/008 , F04D29/266 , F04D29/30
摘要： To provide a vacuum pump capable of evacuating in pressure ranges from an atmospheric pressure to a high vacuum, capable of rotating at a high speed to be downsized and improved in pumping performance, and capable of producing a completely oil-free vacuum. A vacuum pump for exhausting a gas comprises: a main shaft 5 rotatably supported by a bearing 22; a motor 23 for driving the main shaft 5 for rotation; a first exhaust section 10 having a first rotary vane 13 attached to the main shaft 5, a first fixed vane 14 fixed in a first casing 12, and an intake port 11; and a second exhaust section 30 having a second rotary vane 33 attached to the main shaft 5, a second fixed vane 34 fixed in a second casing 32, and an exhaust port 31. The intake port 11 is located in the vicinity of an end of the main shaft 5, and the first exhaust section 10, the bearing 22 and the second exhaust section 30 are arranged in this order axially along the main shaft 5.
摘要翻译：提供能够在大气压至高真空的压力范围内抽真空的真空泵，能够高速旋转以减小泵送性能并且能够产生完全无油的真空。用于排出气体的真空泵包括：由轴承22可旋转地支撑的主轴5; 用于驱动主轴5旋转的马达23; 第一排气部分10具有安装在主轴5上的第一旋转叶片13，固定在第一壳体12中的第一固定叶片14和进气口11; 以及具有安装在主轴5上的第二旋转叶片33的第二排气部分30，固定在第二壳体32中的第二固定叶片34和排气口31.进气口11位于主轴5和第一排气部10，轴承22和第二排气部30沿着主轴5轴向配置。

52. 发明授权

US5491396A Magnetic bearing apparatus and rotating machine having such an apparatus 失效
标题翻译：具有这种装置的磁性轴承装置和旋转机械
公开(公告)号：US5491396A
公开(公告)日：1996-02-13
申请号：US243904
申请日：1994-05-17
申请人： Naohiko Takahashi , Minoru Hiroshima , Osami Matsushita , Yasuo Fukushima
发明人： Naohiko Takahashi , Minoru Hiroshima , Osami Matsushita , Yasuo Fukushima
IPC分类号： F04D29/056 , F04D29/058 , F16C32/04 , F16C39/06 , G05D13/00
CPC分类号： F16C32/0451 , F16C32/0446 , F16C2360/44
摘要： A magnetic bearing is provided with a simulating circuit for estimating a displacement of a rotor on the basis of a force which is exerted on the rotor. An output of the simulating circuit is compared with an actual displacement signal. A delay circuit and a subtracter are provided to subtract a run-out, which was estimated one period before the rotation of the rotor, from the displacement signal. A displacement signal from which the run-out component was eliminated is set to a new displacement signal. A signal which is obtained by adding an estimated run-out of one period before, namely, an output of the delay circuit to the run-out which was estimated by comparing the output of the simulating circuit with the new displacement signal is newly inputted to the delay circuit. Due to this, the run-out component is eliminated from the displacement signal of the magnetic bearing, the load on power amplifiers for driving the electromagnets is reduced, there is a surplus for a saturation which is caused in a high frequency band, the reliability of the control system is improved, and deterioration of positional accuracy due to the run-out is prevented.
摘要翻译：磁性轴承设置有用于基于施加在转子上的力来估计转子的位移的模拟电路。模拟电路的输出与实际位移信号进行比较。提供延迟电路和减法器以减去在转子旋转之前的一个周期内的偏移量与位移信号。排除组分的位移信号被设定为新的位移信号。将通过将延迟电路的输出与通过将模拟电路的输出与新的位移信号进行比较而估计的余量相加的估计的输出相加而获得的信号被新输入到延时电路。由此，从磁性轴承的位移信号中消除了失效部件，用于驱动电磁体的功率放大器的负载减小，在高频带中产生的饱和度过剩，可靠性提高了控制系统的性能，防止了由于失控引起的位置精度的劣化。

53. 发明授权

US4962734A Electrically driven, circumferentially supported fan 失效
标题翻译：电驱动，周向支撑的风扇
公开(公告)号：US4962734A
公开(公告)日：1990-10-16
申请号：US493510
申请日：1990-03-14
申请人： Iner M. Jorgensen
发明人： Iner M. Jorgensen
IPC分类号： F01P5/04 , F01P7/04 , F02B1/04 , F04D25/06 , F04D27/02 , F04D29/04 , F04D29/058 , F04D29/16 , H02K7/14
CPC分类号： F04D29/058 , F01P5/04 , F01P7/048 , F04D25/0606 , F04D25/066 , F04D27/004 , F04D29/164 , H02K7/14 , F02B1/04
摘要： A circumferentially supported fan assembly for drawing cooling air through a radiator of a vehicle is described. The fan includes a fan ring extending circumferentially around the periphery of the fan, the blades of the fan extending from a central region to the fan ring. The entire weight of the fan is borne by a fan support assembly which extends around the periphery of the fan ring, outside the path of air flowing through the fan. The fan is the rotor of an electrically driven motor. A rotor flange of the fan ring extends transverse to the axis of the rotation of the fan, providing a greater torque advantage for the motor. An electrical control circuit selectively controls the speed of the fan to maintain the liquid temperature of the radiator below a selected threshold value. As additional cooling is required, the electronic controller gradually and smoothly increases the power drawn from the engine to turn the fan to increase its speed towards a selected speed. The air permeability of the fan when freewheeling is significantly increased because no central shaft or support structure blocks the airflow through the fan.
摘要翻译：描述了一种用于将冷却空气通过车辆散热器的周向支撑的风扇组件。风扇包括围绕风扇周边周向延伸的风扇环，风扇的叶片从中心区域延伸到风扇环。风扇的整个重量由风扇支撑组件承担，风扇支撑组件围绕风扇环的周边延伸，在风扇流动的空气流动之外。风扇是电动马达的转子。风扇环的转子凸缘横跨风扇的旋转轴线延伸，为电机提供更大的扭矩优势。电气控制电路选择性地控制风扇的速度以将散热器的液体温度维持在选定的阈值以下。由于需要额外的冷却，电子控制器逐渐平稳地增加从发动机抽取的功率，以转动风扇以将其速度提高到所选择的速度。空转时风扇的透气度显着增加，因为中心轴或支撑结构没有阻挡通过风扇的气流。

54. 发明授权

US4768921A Turbomolecular vacuum pump 失效
标题翻译：涡轮分子真空泵
公开(公告)号：US4768921A
公开(公告)日：1988-09-06
申请号：US042627
申请日：1987-04-23
申请人： Ueda Shinjiro , Osami Matsushita , Naoyuki Tamura , Yoshiteru Miyatake
发明人： Ueda Shinjiro , Osami Matsushita , Naoyuki Tamura , Yoshiteru Miyatake
IPC分类号： F04D19/04 , F04D29/056 , F04D29/058 , F01D1/36
CPC分类号： F04D19/048
摘要： A turbomolecular vacuum pump having stator blades disposed in a multistage fashion within a casing in an axial direction thereof, and rotor blades which are located between respectively adjacent stator blades and are mounted on an outer periphery of a rotor situated centrally of the casing. A motor rotor is fixed to a rotating member which is formed of the rotor having the rotor blades fixed to the outer periphery, and a motor stator opposite to the motor rotor is arranged so as to construct a drive mechanism for the rotating member. The rotating member is supported at a lower portion thereof by a pivot-type plane bearing, and a magnetic bearing is arranged in such a manner so as to oppose a lower end of the rotor and a supporting member for the rotating member.
摘要翻译：一种涡轮分子真空泵，其具有沿轴向方向在壳体内以多级方式设置的定子叶片，以及位于相邻的定子叶片之间并且安装在位于壳体中心的转子的外周上的转子叶片。电动机转子固定在由具有固定在外周上的转子叶片的转子形成的旋转部件上，与电机转子相对的电动机定子配置成构成旋转部件的驱动机构。旋转构件通过枢轴式平面轴承在其下部支撑，并且以与转子的下端相对的方式配置磁性轴承和用于旋转构件的支撑构件。

55. 发明授权

US4609332A Turbo-molecular pump 失效
标题翻译：涡轮分子泵
公开(公告)号：US4609332A
公开(公告)日：1986-09-02
申请号：US553180
申请日：1983-11-18
申请人： Masaharu Miki , Chiaki Urano
发明人： Masaharu Miki , Chiaki Urano
IPC分类号： F04D19/04 , F04D29/04 , F04D29/058 , F16C39/06 , F04B17/00
CPC分类号： F04D29/058 , F04D19/048 , F16C25/045 , F16C32/0485 , F16C2360/45
摘要： A turbo-molecular pump characterized in that three out of five degrees of freedom except the rotation around the rotational axis of a shaft are actively controlled constrainingly by a pair of magnetic radius direction bearings and a pair of magnetic axial bearings, a bell-shaped rotor provided to cover the whole of magnetic bearing and a shaft which is supported by a magnetic bearing passively constraining the remaining two degrees of freedom, and said rotor is rotated at high speed by an inner-rotor type of a driving motor provided between a radius direction bearing and axial bearing.
摘要翻译：一种涡轮分子泵，其特征在于，除了轴的旋转轴线周围的旋转之外，五个自由度中的三个自由度被一对磁性半径方向轴承和一对磁性轴向轴承，钟形转子被设置为覆盖整个磁性轴承和由被动地限制剩余两个自由度的磁性轴承支撑的轴，并且所述转子通过设置在半径方向上的驱动电动机的内转子类型而高速旋转轴承和轴向轴承。

56. 发明授权

US4541772A Pump with magnetic bearings 失效
标题翻译：泵带磁轴承
公开(公告)号：US4541772A
公开(公告)日：1985-09-17
申请号：US543264
申请日：1983-10-19
申请人： Willi Becker
发明人： Willi Becker
IPC分类号： F04D19/04 , F04D29/04 , F04D29/046 , F04D29/05 , F04D29/058 , F16C32/04 , F16C39/06 , F01D1/36 , F04D29/66
CPC分类号： F04D19/042 , F16C32/0478 , F16C2360/45
摘要： A turbo-molecular pump with passive, radial magnetic bearings and axial bearings has both direct and indirect damping arrangements for unwanted oscillations. Direct damping is produced by eddy currents produced in copper rings around the magnetic stators of the magnetic bearings. Indirect damping is provided through a platform, carried by springs and connected to the pump housing by oscillation dampers.
摘要翻译：具有无源，径向磁轴承和轴向轴承的涡轮分子泵具有用于不需要的振荡的直接和间接阻尼布置。通过在磁性轴承的磁性定子周围的铜环中产生的涡流产生直接阻尼。间接阻尼通过平台提供，由弹簧承载并通过振动阻尼器连接到泵壳体。

57. 发明公开

US20240369065A1 FAN 审中-公开
公开(公告)号：US20240369065A1
公开(公告)日：2024-11-07
申请号：US18775970
申请日：2024-07-17
申请人： Levitronix GmbH
发明人： Thomas HOLENSTEIN , Florian WASSMER
IPC分类号： F04D25/06 , F04D19/00 , F04D25/08 , F04D27/00 , F04D29/058 , F04D29/38 , H02K7/14
CPC分类号： F04D25/064 , F04D19/002 , F04D25/0646 , F04D27/001 , F04D29/058 , H02K7/14 , F04D25/08 , F04D29/384 , F05B2240/51
摘要： A fan having a rotor for generating a fluid flow includes a stator and a rotor, which form an electromagnetic rotary drive for rotating the rotor about an axial direction. The rotary drive is an external rotor, and the rotor includes a magnetically effective core configured in an annular manner. The impeller includes a hub on which a plurality of blades configured to generate the fluid flow is arranged, and the stator is a bearing and drive stator configured to magnetically drive the rotor without contact and magnetically levitate the rotor without contact with respect to the stator. The rotor is capable of being actively magnetically levitated in a radial plane perpendicular to the axial direction, the hub of the impeller completely enclosing the magnetically effective core of the rotor, and the stator is encapsulated in a stator housing and formed of a low-permeable material.

58. 发明授权

US12092123B2 Control apparatus and vacuum pump provided with said control apparatus 有权
公开(公告)号：US12092123B2
公开(公告)日：2024-09-17
申请号：US17434306
申请日：2020-03-09
申请人： Edwards Japan Limited
发明人： Toshiaki Kawashima
IPC分类号： F04D9/04 , F04D19/04 , F04D25/06 , F04D27/00 , F04D29/058 , H02K7/09
CPC分类号： F04D27/001 , F04D19/042 , F04D25/06 , F04D29/058
摘要： A control apparatus includes a constant storage portion that stores constant values of an electromagnet coil including a resistance value Rm, an inductance Lm, a sampling time Ts, etc. A current storage portion stores previous current command values Ir having been regularly sampled by a microcomputer inside a current control circuit. A low-frequency feedback circuit generates a signal for suppressing an error between DC components and low-frequency components of an input current command value Ir and a detected current value IL and outputs the signal. An output voltage computing circuit calculates, based on the input current command value Ir[n+1], a stored value Ir[n] of the current storage portion, a stored value of a constant storage portion, and the signal of the low-frequency feedback circuit, a voltage for suppling the electromagnet coil with a current in accordance with a command, and outputs the calculated voltage.

59. 发明授权

US12078181B2 Fan 有权
公开(公告)号：US12078181B2
公开(公告)日：2024-09-03
申请号：US16882982
申请日：2020-05-26
申请人： Levitronix GmbH
发明人： Thomas Holenstein , Florian Wassmer
IPC分类号： F04D25/06 , F04D19/00 , F04D25/08 , F04D27/00 , F04D29/058 , F04D29/38 , H02K7/14
CPC分类号： F04D25/064 , F04D19/002 , F04D25/0646 , F04D27/001 , F04D29/058 , H02K7/14 , F04D25/08 , F04D29/384 , F05B2240/51
摘要： A fan having a rotor for generating a fluid flow includes a stator and a rotor, which form an electromagnetic rotary drive for rotating the rotor about an axial direction. The rotary drive is an external rotor, and the rotor includes a magnetically effective core configured in an annular manner. The impeller includes a hub on which a plurality of blades configured to generate the fluid flow is arranged, and the stator is a bearing and drive stator configured to magnetically drive the rotor without contact and magnetically levitate the rotor without contact with respect to the stator. The rotor is capable of being actively magnetically levitated in a radial plane perpendicular to the axial direction, the hub of the impeller completely enclosing the magnetically effective core of the rotor, and the stator is encapsulated in a stator housing and formed of a low-permeable material.

60. 发明授权

US11971045B2 Turbo compressor 有权
公开(公告)号：US11971045B2
公开(公告)日：2024-04-30
申请号：US16608709
申请日：2018-05-08
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Yuji Nakazawa , Atsushi Sakawaki , Hirofumi Higashi , Taiichi Nose , Takaaki Ono , Yusuke Irino
IPC分类号： F04D27/02 , F04D17/10 , F04D25/06 , F04D29/051 , F04D29/058 , F16C32/04 , F25B1/053 , H02K7/09 , H02K7/14 , H02P25/024
CPC分类号： F04D27/0261 , F04D17/10 , F04D25/0606 , F04D29/051 , F04D29/058 , F16C32/04 , F16C32/048 , F25B1/053 , H02K7/09 , H02K7/14 , H02P25/024
摘要： A drive support unit of a turbo compressor includes at least one bearingless motor. The at least one bearingless motor includes a rotor-stator pair constituted by a rotor and a stator, and is configured to rotationally drive a drive shaft and to support a radial load of the drive shaft in a contactless manner. Accordingly, it is possible to provide a turbo compressor to which a bearingless motor is applied.

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