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1. 发明授权

US5003235A Single element magnetic suspension actuator 失效
标题翻译：单元磁悬浮执行器
公开(公告)号：US5003235A
公开(公告)日：1991-03-26
申请号：US405154
申请日：1989-09-11
申请人： Nelson J. Groom
发明人： Nelson J. Groom
IPC分类号： F16C39/06
CPC分类号： F16C32/0465 , F16C32/0457
摘要： The invention, a single element magnetic suspension actuator with bidirectional force capability along a single axis, includes an electromagnet 11 and a nonmagnetic suspended element 12. A permanent magnet 13 mounted on the suspended element 12 interacts with a magnetic field established by the electromagnet 11 to produce bidirectional forces in response to a variable force command voltage V.sub.FC applied to the electromagnet 11. A sensor 14 measures the position of the suspended element 12 on the single axis which is a function of force command voltage V.sub.FC.
摘要翻译：本发明是具有沿着单个轴线的双向力能力的单元件磁悬浮致动器，其包括电磁体11和非磁悬浮元件12.安装在悬挂元件12上的永久磁铁13与由电磁体11建立的磁场相互作用，响应于施加到电磁体11的可变力指令电压VFC产生双向力。传感器14测量作为力指令电压VFC的函数的单个轴上的悬挂元件12的位置。

2. 发明授权

US5003211A Permanent magnet flux-biased magnetic actuator with flux feedback 失效
标题翻译：具有磁通反馈的永磁磁通磁偏置磁致动器
公开(公告)号：US5003211A
公开(公告)日：1991-03-26
申请号：US405168
申请日：1989-09-11
申请人： Nelson J. Groom
发明人： Nelson J. Groom
IPC分类号： F16C39/06
CPC分类号： F16C32/0451
摘要： The invention is a permanent magnet flux-biased magnetic actuator with flux feedback for adjustably suspending an element on a single axis. The magnetic actuator includes a pair of opposing electromagnets 11' and 12' providing bi-directional forces along the single axis to the suspended element. Permanent magnets in flux feedback loops from the opposing electromagnets establish a reference permanent magnet flux-bias to linearize the force characteristics of the electromagnets to extend the linear range of the actuator without the need for continuous bias currents in said electromagnets.
摘要翻译：本发明是具有通量反馈的永磁磁通磁偏置磁致动器，用于可调节地将元件悬挂在单个轴上。磁致动器包括一对相对的电磁体11'和12'，其沿着单个轴向悬挂元件提供双向力。来自相对电磁体的磁通反馈回路中的永磁体建立参考永磁体通量偏置，以使电磁铁的力特性线性化，以延长致动器的线性范围，而不需要所述电磁体中的连续偏置电流。

3. 发明授权

US06244835B1 Blood pump having a magnetically suspended rotor 有权
标题翻译：具有磁悬浮转子的血泵
公开(公告)号：US06244835B1
公开(公告)日：2001-06-12
申请号：US09356662
申请日：1999-07-19
申请人： James F. Antaki , Bradley Paden , Gregory Burgreen , Nelson J. Groom
发明人： James F. Antaki , Bradley Paden , Gregory Burgreen , Nelson J. Groom
IPC分类号： F04B1700
CPC分类号： F04D29/048 , A61M1/1005 , A61M1/101 , A61M1/1012 , A61M1/1015 , A61M1/1022 , A61M1/1031 , A61M1/1086 , A61M1/12 , A61M1/122 , F04D3/005 , F04D3/02 , F04D13/0633 , F04D13/064 , F04D13/0646 , F16C32/0474 , F16C2316/18 , F16C2360/44 , H02K1/276 , H02K1/2786 , H02K7/09 , H02K7/14 , H02K29/06 , Y10S415/90
摘要： A blood pump preferably has a magnetically suspended rotor that rotates within a housing. The rotor may rotate about a stator disposed within the housing. Radial magnetic bearings may be defined within the stator and the rotor in order to suspend the rotor. The radial magnetic bearings may be passive magnetic bearings that include permanent magnets disposed within the stator and the rotor or active magnetic bearings. The pump may further include an axial magnetic bearing that may be either a passive or an active magnetic bearing. A motor that drives the rotor may be disposed within the housing in order to more easily dissipate heat generated by the motor. A primary flow path is defined between the rotor and the stator, and a secondary flow path is defined between the stator and the rotor. Preferably, a substantial majority of blood passes through the primary flow path. The secondary flow path is large enough so that it provides adequate flushing of the secondary flow path while being small enough to permit efficient operation of the radial magnet bearings across the secondary flow path.
摘要翻译：血泵优选地具有在壳体内旋转的磁悬浮转子。转子可围绕设置在壳体内的定子旋转。径向磁轴承可以限定在定子和转子内，以便悬挂转子。径向磁轴承可以是被动磁轴承，其包括设置在定子内的永磁体和转子或主动磁轴承。泵还可以包括可以是被动或主动磁轴承的轴向磁轴承。驱动转子的电动机可以设置在壳体内，以便更容易地散发由电动机产生的热量。在转子和定子之间限定一个主要流动路径，并且在定子和转子之间限定二次流动路径。优选地，绝大多数血液通过主流路。二次流动路径足够大，使得其能够足够小地冲洗二次流动路径，同时足够小以允许径向磁体轴承跨越次级流动路径的有效操作。

4. 发明授权

US4281384A Rim inertial measuring system 失效
标题翻译：轮辋惯性测量系统
公开(公告)号：US4281384A
公开(公告)日：1981-07-28
申请号：US102002
申请日：1979-12-07
申请人： Nelson J. Groom , Williard W. Anderson , William H. Phillips
发明人： Nelson J. Groom , Williard W. Anderson , William H. Phillips
IPC分类号： F16C39/06 , G01C19/02 , G01C23/00
CPC分类号： F16C32/0451 , G01C19/02
摘要： An annular momentum control device (AMCD) 11 is operated in a strapped down position on a spacecraft. The signals from the position sensors 18 and 19 at the several AMCD magnetic bearing stations a, b, and c are applied to computers (FIGS. 4 and 5) which compute the angular rate about first and second axes in the plane of the AMCD rim 12 and compute the linear accelerations along the first and second axes and along a third axis perpendicular to the first and second axes.
摘要翻译：环形动量控制装置（AMCD）11在航天器上的捆扎下方位置操作。来自位于多个AMCD磁性轴承站a，b和c处的位置传感器18和19的信号被施加到计算机（图4和图5），计算机在AMCD边缘的平面中关于第一和第二轴线的角速度并且计算沿着第一轴线和第二轴线以及垂直于第一和第二轴线的第三轴线的线性加速度。

5. 发明授权

US4088018A Magnetic suspension and pointing system 失效
标题翻译：磁悬浮和指向系统
公开(公告)号：US4088018A
公开(公告)日：1978-05-09
申请号：US807703
申请日：1977-06-17
申请人： Willard W. Anderson , Nelson J. Groom
发明人： Willard W. Anderson , Nelson J. Groom
IPC分类号： B64G1/66 , F41G3/22 , F41G5/14 , H01Q1/18 , G01C21/00
CPC分类号： B64G1/66 , F41G3/22 , F41G5/14 , H01Q1/18
摘要： Apparatus for providing accurate pointing of instruments on a carrier vehicle and for providing isolation of the instruments from the vehicle's motion disturbances. The apparatus includes two assemblies, with connecting interfaces, each assembly having a separate function. The first assembly is attached to the carrier vehicle and consists of an azimuth gimbal and an elevation gimbal which provide coarse pointing of the instruments by allowing two rotations of the instruments relative to the carrier vehicle. The second or vernier pointing assembly is made up of magnetic suspension and fine pointing actuators, roll motor segments, and an instrument mounting plate around which a continuous annular rim is attached which provides appropriate magnetic circuits for the actuators and the roll motor segments. The vernier pointing assembly is attached to the elevation gimbal and provides vernier attitude fine pointing and roll positioning of the instruments as well as six degree-of-freedom isolation from carrier motion disturbances.
摘要翻译：用于在载体车辆上提供仪器的准确指向并且用于将仪器与车辆的运动障碍隔离的装置。该装置包括具有连接接口的两个组件，每个组件具有单独的功能。第一组件连接到运载工具，并由方位云台和仰角万向架组成，通过允许仪器相对于运载工具的两次旋转，提供仪器的粗略指向。第二或游标指向组件由磁悬浮和精细指向致动器，滚动马达段和仪器安装板组成，连接环形边缘围绕该安装板，其为致动器和辊马达段提供适当的磁路。游标指向装置连接到升降万向节，并提供了微妙的姿态，精确的指向和滚动定位的仪器以及与载波运动干扰的六自由度隔离。

6. 发明授权

US06447266B2 Blood pump having a magnetically suspended rotor 有权
标题翻译：具有磁悬浮转子的血泵
公开(公告)号：US06447266B2
公开(公告)日：2002-09-10
申请号：US09841223
申请日：2001-04-24
申请人： James F. Antaki , Bradley Paden , Gregory Burgreen , Nelson J. Groom
发明人： James F. Antaki , Bradley Paden , Gregory Burgreen , Nelson J. Groom
IPC分类号： F04B1700
CPC分类号： F04D29/048 , A61M1/1005 , A61M1/101 , A61M1/1012 , A61M1/1015 , A61M1/1022 , A61M1/1031 , A61M1/1086 , A61M1/12 , A61M1/122 , F04D3/005 , F04D3/02 , F04D13/0633 , F04D13/064 , F04D13/0646 , F16C32/0474 , F16C2316/18 , F16C2360/44 , H02K1/276 , H02K1/2786 , H02K7/09 , H02K7/14 , H02K29/06 , Y10S415/90
摘要： A blood pump preferably has a magnetically suspended rotor that rotates within a housing. The rotor may rotate about a stator disposed within the housing. Radial magnetic bearings may be defined within the stator and the rotor in order to suspend the rotor. The radial magnetic bearings may be passive magnetic bearings that include permanent magnets disposed within the stator and the rotor or active magnetic bearings. The pump may further include an axial magnetic bearing that may be either a passive or an active magnetic bearing. A motor that drives the rotor may be disposed within the housing in order to more easily dissipate heat generated by the motor. A primary flow path is defined between the rotor and the stator, and a secondary flow path is defined between the stator and the rotor. Preferably, a substantial majority of blood passes through the primary flow path. The secondary flow path is large enough so that it provides adequate flushing of the secondary flow path while being small enough to permit efficient operation of the radial magnet bearings across the secondary flow path.
摘要翻译：血泵优选地具有在壳体内旋转的磁悬浮转子。转子可以围绕设置在壳体内的定子旋转。径向磁轴承可以限定在定子和转子内，以便悬挂转子。径向磁轴承可以是被动磁轴承，其包括设置在定子内的永磁体和转子或主动磁轴承。泵还可以包括可以是被动或主动磁轴承的轴向磁轴承。驱动转子的电动机可以设置在壳体内，以便更容易地散发由电动机产生的热量。在转子和定子之间限定一个主要流动路径，并且在定子和转子之间限定二次流动路径。优选地，绝大多数血液通过主流路。二次流动路径足够大，使得其能够足够小地冲洗二次流动路径，同时足够小以允许径向磁体轴承跨越次级流动路径的有效操作。

7. 发明授权

US4156548A Magnetic suspension and pointing system 失效
公开(公告)号：US4156548A
公开(公告)日：1979-05-29
申请号：US662182
申请日：1976-02-27
申请人： Willard W. Anderson , Nelson J. Groom
发明人： Willard W. Anderson , Nelson J. Groom
IPC分类号： B64G1/66 , F16C39/06 , G01S5/00 , H01Q1/18 , F16C39/00
CPC分类号： F16C32/0444 , B64G1/66 , G01S5/00 , H01Q1/18
摘要： Apparatus for providing accurate pointing of instruments on a carrier vehicle and for providing isolation of the instruments from the vehicle's motion disturbances. The apparatus includes two assemblies, with connecting interfaces, each assembly having a separate function. The first assembly is attached to the carrier vehicle and consists of an azimuth gimbal and an elevation gimbal which provide coarse pointing of the instruments by allowing two rotations of the instruments relative to the carrier vehicle. The second or vernier pointing assembly is made up of magnetic suspension and fine pointing actuators, roll motor segments, and an instrument mounting plate around which a continuous annular rim is attached which provides appropriate magnetic circuits for the actuators and the roll motor segments. The vernier pointing assembly is attached to the elevation gimbal and provides vernier attitude fine pointing and roll positioning of the instruments as well as six degree-of-freedom isolation from carrier motion disturbances.

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