Fuel-cell compressed-air supplying device
    2.
    发明申请
    Fuel-cell compressed-air supplying device 审中-公开
    燃料电池压缩空气供应装置

    公开(公告)号:US20070069597A1

    公开(公告)日:2007-03-29

    申请号:US11522943

    申请日:2006-09-19

    Abstract: A fuel-cell compressed-air supplying device 6 includes a centrifugal compressor 12 provided in a casing 11 and a bearing device 14 for supporting a rotation shaft 13 of the compressor 12. The bearing device 14 includes a pair of radial foil bearings 21 and 22 provided coaxially with the rotation shaft 13 for supporting the rotation shaft 13 in the radial direction, a pair of axial foil bearings 23 and 24 facing to the rotation shaft 13 in the axial direction for supporting the rotation shaft 13 in the axial direction, and a secondary bearing means 25 which is constituted by a combination of plural permanent magnets 61a, 61b, 62a, 62b, 63a, 63b, 64a and 64b and holds the rotation shaft 13 in a non-contact manner at static states.

    Abstract translation: 燃料电池压缩空气供给装置6包括设置在壳体11中的离心式压缩机12和用于支撑压缩机12的旋转轴13的轴承装置14。 轴承装置14包括与旋转轴13同轴地设置的一对径向箔片轴承21和22,用于沿径向支撑旋转轴13,一对轴向箔片轴承23和24以轴向方向面对旋转轴13 沿轴向支撑旋转轴13的方向,以及由多个永久磁铁61a,61b,62a,62b,63a,63b,64a和64d的组合构成的副轴承装置25 b并且以静止状态以非接触的方式保持旋转轴13。

    Controller of magnetic bearing
    3.
    发明授权
    Controller of magnetic bearing 有权
    磁轴承控制器

    公开(公告)号:US06472787B1

    公开(公告)日:2002-10-29

    申请号:US09786316

    申请日:2001-03-02

    CPC classification number: F16C32/0451 G05B5/01 G05B13/024 G05B21/02

    Abstract: In a control unit for magnetic bearing, a sampling frequency of a DSP 4 is varied according to a number of rotation of a rolling element 1. Thus, a frequency band to be damped by a notch filter 42 as a digital filter is varied in correspondence with a resonance frequency associated with a natural frequency and a rotational vibration frequency, thereby to damp a resonance signal contained in a control signal. The occurrence of resonance is thus prevented through digital control.

    Abstract translation: 在用于磁轴承的控制单元中,DSP4的采样频率根据滚动元件1的旋转次数而变化。因此,作为数字滤波器的由陷波滤波器42阻尼的频带相应地变化 具有与固有频率和旋转振动频率相关联的共振频率,从而衰减包含在控制信号中的谐振信号。 因此通过数字控制来防止共振的发生。

    Controllable magnetic bearing apparatus
    4.
    发明授权
    Controllable magnetic bearing apparatus 有权
    可控磁轴承装置

    公开(公告)号:US6147425A

    公开(公告)日:2000-11-14

    申请号:US413486

    申请日:1999-10-06

    CPC classification number: F16C32/0442 F16C32/0455 F16C2360/45

    Abstract: In the magnetic bearing apparatus, there is provided a current sensor for detecting a current flowing in a motor. When the current increases over a reference value, a DSP enhances a support stiffness of the magnetic bearing, thereby securing a stable rotation of the rotor.

    Abstract translation: 在磁轴承装置中,设置有用于检测在电动机中流动的电流的电流传感器。 当电流比参考值增加时,DSP增强了磁轴承的支撑刚度,从而确保了转子的稳定旋转。

    Rolling bearing device with sensor
    6.
    发明授权
    Rolling bearing device with sensor 有权
    带传感器的滚动轴承装置

    公开(公告)号:US08167499B2

    公开(公告)日:2012-05-01

    申请号:US12149353

    申请日:2008-04-30

    CPC classification number: G01L5/0023 F16C19/186 F16C19/522 F16C2326/02

    Abstract: A first spacer, a second tubular member, and a second spacer are externally fitted and fixed to an outer peripheral surface of a nut. The second tubular member is formed by stacking a plurality of silicon steel plates without any gap, and is arranged between the first spacer and the second spacer axially. The outer diameter of an outer peripheral surface of the second tubular member is made larger than the outer diameter of an outer peripheral surface of the first spacer and the outer diameter of an outer peripheral surface of the second spacer. A detection surface of a first displacement detector is made to radially face a contact portion between the second spacer and the second tubular member, while a detection surface of a second displacement detector is made to radially face a contact portion between the first spacer and the second tubular member.

    Abstract translation: 第一间隔件,第二管状构件和第二间隔件外部装配并固定到螺母的外周表面。 第二管状构件通过堆叠多个无间隙的硅钢板形成,并且轴向地布置在第一间隔件和第二间隔件之间。 第二管状部件的外周面的外径大于第一间隔件的外周面的外径和第二间隔件的外周面的外径。 使第一位移检测器的检测表面径向地面对第二间隔件和第二管状构件之间的接触部分,同时第二位移检测器的检测表面径向地面对第一间隔件和第二管状构件之间的接触部分 管状构件。

    Centrifugal air compressor
    7.
    发明授权
    Centrifugal air compressor 失效
    离心式空气压缩机

    公开(公告)号:US07963748B2

    公开(公告)日:2011-06-21

    申请号:US12035160

    申请日:2008-02-21

    Abstract: If the ambient temperature of a pressure volute measured by a temperature sensor exceeds 0° C., a compressor is instantly started at normal operation. If the temperature of the pressure volute measured by the temperature sensor is 0° C. or lower, vibration along the axial direction is given to the rotary shaft by way of an axial magnetic bearing. If the vibration amplitude of the thus given vibration exceeds a predetermined value, the compressor is started at normal operation after idle operation. On the other hand, if the vibration amplitude is lower than a predetermined value, the heater is actuated to heat the pressure volute only for a predetermined time. Thereafter, the ambient temperature is detected again, and if the ambient temperature exceeds 0° C., the compressor is started.

    Abstract translation: 如果由温度传感器测量的压力蜗壳的环境温度超过0℃,则在正常操作下立即启动压缩机。 如果由温度传感器测量的压力蜗壳的温度为0℃以下,则通过轴向磁轴承向旋转轴施加沿轴向的振动。 如果这样给出的振动的振动振幅超过规定值,则在空转运转后,正常运转时启动压缩机。 另一方面,如果振动振幅低于预定值,则加热器被致动以仅将加压蜗壳加热预定时间。 此后再次检测环境温度,如果环境温度超过0℃,则启动压缩机。

    Rolling bearing device with sensor
    8.
    发明申请
    Rolling bearing device with sensor 有权
    带传感器的滚动轴承装置

    公开(公告)号:US20080273823A1

    公开(公告)日:2008-11-06

    申请号:US12149353

    申请日:2008-04-30

    CPC classification number: G01L5/0023 F16C19/186 F16C19/522 F16C2326/02

    Abstract: A first spacer, a second tubular member, and a second spacer are externally fitted and fixed to an outer peripheral surface of a nut. The second tubular member is formed by stacking a plurality of silicon steel plates without any gap, and is arranged between the first spacer and the second spacer axially. The outer diameter of an outer peripheral surface of the second tubular member is made larger than the outer diameter of an outer peripheral surface of the first spacer and the outer diameter of an outer peripheral surface of the second spacer. A detection surface of a first displacement detector is made to radially face a contact portion between the second spacer and the second tubular member, while a detection surface of a second displacement detector is made to radially face a contact portion between the first spacer and the second tubular member.

    Abstract translation: 第一间隔件,第二管状构件和第二间隔件外部装配并固定到螺母的外周表面。 第二管状构件通过堆叠多个无间隙的硅钢板形成,并且轴向地布置在第一间隔件和第二间隔件之间。 第二管状部件的外周面的外径大于第一间隔件的外周面的外径和第二间隔件的外周面的外径。 使第一位移检测器的检测表面径向地面对第二间隔件和第二管状构件之间的接触部分,同时第二位移检测器的检测表面径向地面对第一间隔件和第二管状构件之间的接触部分 管状构件。

    Control magnetic bearing device
    9.
    发明授权
    Control magnetic bearing device 有权
    控制磁轴承装置

    公开(公告)号:US07053582B2

    公开(公告)日:2006-05-30

    申请号:US11296232

    申请日:2005-12-08

    CPC classification number: H02K7/09 F16C32/0455 F16C2360/45

    Abstract: A control magnetic bearing device comprises a plurality of control magnetic bearings for contactlessly supporting a rotor, an electric motor for rotating the rotor, a magnetic bearing drive circuit for driving the magnetic bearings, an inverter for driving the electric motor, a main control circuit for controlling the magnetic bearing drive circuit and the inverter, and a power source unit connected to an external power source for supplying electric power to the magnetic bearing drive circuit, the inverter and the main control unit. The main control unit has software-programmable digital processing means for controlling the inverter in accordance with an input voltage value from the power source unit.

    Abstract translation: 控制磁轴承装置包括多个用于非接触地支撑转子的控制磁轴承,用于旋转转子的电动机,用于驱动磁轴承的磁轴承驱动电路,用于驱动电动机的逆变器,用于驱动电动机的主控制电路 控制磁轴承驱动电路和逆变器,以及连接到外部电源的电源单元,用于向磁轴承驱动电路,逆变器和主控制单元提供电力。 主控制单元具有用于根据来自电源单元的输入电压值来控制逆变器的软件可编程数字处理装置。

    Control magnetic bearing device
    10.
    发明申请
    Control magnetic bearing device 审中-公开
    控制磁轴承装置

    公开(公告)号:US20050174087A1

    公开(公告)日:2005-08-11

    申请号:US10774424

    申请日:2004-02-10

    CPC classification number: H02K7/09 F16C32/0455 F16C2360/45 F16C2380/26

    Abstract: A control magnetic bearing device comprises a plurality of control magnetic bearings for contactlessly supporting a rotor, an electric motor for rotating the rotor, a magnetic bearing drive circuit for driving the magnetic bearings, an inverter for driving the electric motor, a main control circuit for controlling the magnetic bearing drive circuit and the inverter, and a power source unit connected to an external power source for supplying electric power to the magnetic bearing drive circuit, the inverter and the main control unit. The main control unit has software-programmable digital processing means for controlling the inverter in accordance with an input voltage value from the power source unit.

    Abstract translation: 控制磁轴承装置包括多个用于非接触地支撑转子的控制磁轴承,用于旋转转子的电动机,用于驱动磁轴承的磁轴承驱动电路,用于驱动电动机的逆变器,用于驱动电动机的主控制电路 控制磁轴承驱动电路和逆变器,以及连接到外部电源的电源单元,用于向磁轴承驱动电路,逆变器和主控制单元提供电力。 主控制单元具有用于根据来自电源单元的输入电压值来控制逆变器的软件可编程数字处理装置。

Patent Agency Ranking