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公开(公告)号：US06437568B1
公开(公告)日：2002-08-20
申请号：US09676945
申请日：2000-10-02
申请人： William Alan Edelstein , Richard Philip Mallozzi , Robert Arvin Hedeen , Sayed-Amr El-Hamamsy , Mark Lloyd Miller , Paul Shadforth Thompson , Robert Adolph Ackermann , Bruce Campbell Amm , John Peter Fura , Mike James Radziun , David Edward Dean , Scott Thomas Mansell , Dewain Anthony Purgill , Robert Michael Vavrek
发明人： William Alan Edelstein , Richard Philip Mallozzi , Robert Arvin Hedeen , Sayed-Amr El-Hamamsy , Mark Lloyd Miller , Paul Shadforth Thompson , Robert Adolph Ackermann , Bruce Campbell Amm , John Peter Fura , Mike James Radziun , David Edward Dean , Scott Thomas Mansell , Dewain Anthony Purgill , Robert Michael Vavrek
IPC分类号： G01V300
CPC分类号： G01R33/3854
摘要： A low noise imaging apparatus for producing Magnetic Resonance (MR) images of a subject and for substantially minimizing acoustic noise generated during imaging is provided. The imaging apparatus comprises a magnet assembly, a gradient coil assembly, and a rf coil assembly, wherein at least one of the magnet assembly, the gradient coil assembly and the rf coil assembly are configured to reduce the generation and transmission of acoustic noise.
摘要翻译： 提供了用于产生受试者的磁共振（MR）图像并且用于基本上最小化在成像期间产生的声学噪声的低噪声成像装置。 成像设备包括磁体组件，梯度线圈组件和射频线圈组件，其中磁体组件，梯度线圈组件和射频线圈组件中的至少一个被配置为减少声学噪声的产生和传输。
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公开(公告)号：US6157276A
公开(公告)日：2000-12-05
申请号：US134764
申请日：1998-08-14
申请人： Robert Arvin Hedeen , William Alan Edelstein , Sayed-Amr El-Hamamsy , Kenneth Gordon Herd , Robert Adolph Ackermann
发明人： Robert Arvin Hedeen , William Alan Edelstein , Sayed-Amr El-Hamamsy , Kenneth Gordon Herd , Robert Adolph Ackermann
IPC分类号： A61B5/055 , G01R33/3815 , G01R33/385 , H01F6/00
CPC分类号： G01R33/3854 , G01R33/3815 , Y10S505/879 , Y10S505/893 , Y10S505/898
摘要： An MR magnet assembly includes a cylindrical vessel for housing a superconducting magnet and having a vacuum between its inner and outer walls. The vessel defines a magnet bore for receiving a patient to be imaged. A gradient coil assembly is mounted in the bore adjacent the inner wall of the magnet assembly. To reduce gradient coil noise, the inner wall is constructed of a non-conductive material which does not support eddy currents.
摘要翻译： MR磁体组件包括用于容纳超导磁体并且在其内壁和外壁之间具有真空的圆柱形容器。 容器限定用于接收待成像的患者的磁体孔。 梯度线圈组件安装在与磁体组件的内壁相邻的孔中。 为了减少梯度线圈噪声，内壁由不支持涡流的非导电材料构成。
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公开(公告)号：US07003977B2
公开(公告)日：2006-02-28
申请号：US10604415
申请日：2003-07-18
IPC分类号： F25D11/00
CPC分类号： F25B9/14 , F25B25/005 , F25B2400/06 , F25B2400/24 , F28D17/02
摘要： A cooling system for providing cryogenic cooling fluid to an apparatus comprises a re-circulation device, a passive cold storage device having a porous matrix of material which directly contacts the cryogenic cooling fluid as the cryogenic cooling fluid passes through the passive cold storage device, a first portion of a fluid communication feed line fluidly connecting the re-circulation device to the passive cold storage device, a second portion of a fluid communication feed line fluidly connecting the passive cold storage device to the apparatus for communicating cryogenic cooling fluid to the apparatus, and a fluid communication return line fluidly connecting the apparatus to the re-circulation device. The passive cold storage device may comprise a regenerative heat exchanger including a porous matrix of metal wire mesh, metal spheres or ceramic spheres.
摘要翻译： 用于向装置提供低温冷却流体的冷却系统包括再循环装置，被动冷藏装置，其具有当低温冷却流体通过被动冷藏装置时直接接触低温冷却流体的多孔材料基质， 将再循环装置流体地连接到被动冷藏装置的流体连通馈送线的第一部分，将被动冷藏装置流体地连接到用于将低温冷却流体传送到装置的装置的流体连通馈送线的第二部分， 以及将该装置流体连接到再循环装置的流体连通回流管线。 被动冷藏装置可包括再生热交换器，其包括金属丝网，金属球或陶瓷球的多孔基体。
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公开(公告)号：US09575150B2
公开(公告)日：2017-02-21
申请号：US14233642
申请日：2012-07-13
IPC分类号： G01V3/00 , G01R33/3815 , H01F6/04 , G01R33/38 , H01F6/06
CPC分类号： G01R33/3815 , G01R33/3802 , H01F6/04 , H01F6/06 , Y10T29/49071
摘要： A magnetic resonance magnet assembly 20 has a coil form 70 shaped as a hollow cylinder. At least two thermally conductive sheets 60 are disposed circumferentially around the coil form 70, separated by a non-electrically conductive region 90. Thermally conductive tubing 50 affixed to each thermally conductive sheeting section 60 runs circumferentially around the coil form 70. At least one layer of thermally conductive electrically insulating material 110 such as fiber glass is bonded with a thermally conductive epoxy encapsulant to the thermally conductive sheets 60. A winding of superconductive wire 80 is bond together and to the electrically insulating material 110 with the thermally conductive epoxy encapsulant.
摘要翻译： 磁共振磁体组件20具有成形为中空圆筒的线圈形式70。 至少两个导热片60围绕线圈形式70设置，由非导电区域90隔开。固定到每个导热片材部分60的导热管50围绕线圈形式70周向延伸。至少一层 导热电绝缘材料110（例如玻璃纤维）与导热环氧树脂密封剂结合到导热片60上。超导线80的绕组通过导热环氧树脂密封剂粘结在电绝缘材料110上。
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公开(公告)号：US20140159726A1
公开(公告)日：2014-06-12
申请号：US14233642
申请日：2012-07-13
IPC分类号： G01R33/3815 , G01R33/38 , H01F6/06
CPC分类号： G01R33/3815 , G01R33/3802 , H01F6/04 , H01F6/06 , Y10T29/49071
摘要： A magnetic resonance magnet assembly 20 has a coil form 70 shaped as a hollow cylinder. At least two thermally conductive sheets 60 are disposed circumferentially around the coil form 70, separated by a non-electrically conductive region 90. Thermally conductive tubing 50 affixed to each thermally conductive sheeting section 60 runs circumferentially around the coil form 70. At least one layer of thermally conductive electrically insulating material 110 such as fiber glass is bonded with a thermally conductive epoxy encapsulant to the thermally conductive sheets 60. A winding of superconductive wire 80 is bond together and to the electrically insulating material 110 with the thermally conductive epoxy encapsulant.
摘要翻译： 磁共振磁体组件20具有成形为中空圆筒的线圈形式70。 至少两个导热片60围绕线圈形式70设置，由非导电区域90隔开。固定到每个导热片材部分60的导热管50围绕线圈形式70周向延伸。至少一层 导热电绝缘材料110（例如玻璃纤维）与导热环氧树脂密封剂结合到导热片60上。超导线80的绕组通过导热环氧树脂密封剂粘结在电绝缘材料110上。
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6.发明授权公开(公告)号：US06442949B1
公开(公告)日：2002-09-03
申请号：US09902586
申请日：2001-07-12
IPC分类号： F25B1900
CPC分类号： H02K9/24 , F04F5/54 , F25B19/00 , F25B25/005 , F25B41/00 , F25B2341/0012 , F25B2500/06 , H02K55/04 , Y02E40/625
摘要： A cooling fluid system is disclosed for providing cryogenic cooling fluid to a high temperature super-conducting machine, wherein said system includes a main cooling system (52, 88) and a second cooling system, said second cooling system comprising a storage device having a first cryogenic fluid; at least one cooling coupling in fluid communication with the first cryogenic fluid from the storage device and a second cryogenic fluid flowing through the main cooling system.
摘要翻译： 公开了一种用于向高温超导机器提供低温冷却流体的冷却流体系统，其中所述系统包括主冷却系统（52,88）和第二冷却系统，所述第二冷却系统包括存储装置，其具有第一 低温液体 与来自存储装置的第一低温流体流体连通的至少一个冷却联接器和流过主冷却系统的第二低温流体。
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公开(公告)号：US06708503B1
公开(公告)日：2004-03-23
申请号：US10331059
申请日：2002-12-27
申请人： Yu Wang , Robert Adolph Ackermann
发明人： Yu Wang , Robert Adolph Ackermann
IPC分类号： F25B1900
CPC分类号： H02K55/04 , F25B25/005 , Y02E40/625
摘要： A superconducting machine includes a superconductive device and a vacuum enclosure containing and thermally insulating the superconductive device. A cold-trap is configured to condense gases generated within the vacuum enclosure, and a coolant circulation system is adapted to force flow of a cryogen to and from the superconductive device and the cold-trap. A cryogenic cooling system is configured to cool the cryogen in the coolant circulation system upstream of the superconductive device. A vacuum retention method, for a high-temperature superconductive HTS device, includes applying vacuum to the HTS device to thermally insulate the HTS device, condensing gases generated around the HTS device using a cold-trap, flowing a cryogen to and from the HTS device, and flowing the cryogen to and from the cold-trap.
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公开(公告)号：US06415613B1
公开(公告)日：2002-07-09
申请号：US09681310
申请日：2001-03-16
IPC分类号： F25B1900
CPC分类号： F25B25/005 , F25B9/00 , F25B2400/06
摘要： A cryogenic cooling system for use with a superconductive electric machine includes a first set of components arranged in a first circuit and adapted to force flow of a cryogen in the first circuit to and from a superconductive electric machine and being operable in a cooldown mode for cooling the cryogen and thereby the superconductive electric machine to a normal operating temperature, and a second set of components arranged in a second circuit and adapted to force flow of a cryogen in the second circuit to and from the superconductive electric machine and being operable in a normal mode for maintaining the cryogen and thereby the superconductive electric machine at the normal operating temperature.
摘要翻译： 与超导电机一起使用的低温冷却系统包括布置在第一回路中的第一组部件，其适用于迫使第一回路中的冷冻剂流过超导电机，并且可以在冷却模式下进行冷却 冷冻剂，从而使超导电机达到正常工作温度;以及第二组组件，其布置在第二回路中，并且适于迫使第二回路中的冷冻剂流过超导电机并从正常操作 模式，用于保持冷冻剂，从而使超导电机处于正常工作温度。
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公开(公告)号：US5691679A
公开(公告)日：1997-11-25
申请号：US764351
申请日：1996-12-12
申请人： Robert Adolph Ackermann , Kenneth Gordon Herd , Evangelos Trifon Laskaris , John Eric Tkaczyk , Kenneth Wilbur Lay , Richard Andrew Ranze
发明人： Robert Adolph Ackermann , Kenneth Gordon Herd , Evangelos Trifon Laskaris , John Eric Tkaczyk , Kenneth Wilbur Lay , Richard Andrew Ranze
CPC分类号： H01F6/065 , F25D19/006
摘要： A superconductive lead assembly for a superconductive device (e.g., magnet) cooled by a cryocooler coldhead having first and second stages. A first ceramic superconductive lead has a first end flexibly, dielectrically, and thermally connected to the first stage and a second end flexibly, dielectrically, and thermally connected to the second stage. A first glass-reinforced-epoxy lead overwrap is in general surrounding contact with and attached to the first superconductive lead. The first lead overwrap has a coefficient of thermal expansion generally equal to that of the first superconductive lead. The lead overwrap protects the lead from moisture damage and from breakage during handling. For added protection against shock and vibration while in the device, the lead assembly is surrounded by a (e.g., polystyrene foam) jacket surrounded by a helically-wound metallic wire surrounded by a glass-reinforced-epoxy jacket overwrap surrounded by a rigid support tube.
摘要翻译： 一种用于超导装置（例如，磁体）的超导引线组件，其由具有第一和第二级的低温冷却器冷头冷却。 第一陶瓷超导引线具有柔性，介电和热连接到第一级的第一端，以及柔性地，介电地且热连接到第二级的第二端。 第一个玻璃增强环氧铅外包装通常围绕与第一超导导线接触并连接到第一超导导线。 第一引线外包装的热膨胀系数通常等于第一超导导线的热膨胀系数。 铅包裹保护铅免受水分损坏和处理中的破损。 为了在装置中增加保护以防止冲击和振动，导线组件被包围有螺旋缠绕的金属线围绕的（例如，聚苯乙烯泡沫）护套围绕，该金属线被由刚性支撑管包围的玻璃增强环氧护套外包裹围绕 。
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公开(公告)号：US07255013B2
公开(公告)日：2007-08-14
申请号：US11265234
申请日：2005-11-02
IPC分类号： G01F1/46
CPC分类号： G01F1/46
摘要： A method for calculating a mass flow rate of a cryogenic fluid within a flow tube includes positioning a sensor within a stream of cryogenic fluid flowing through the flow tube. The sensor is operatively coupled to a strain gauge. A difference between a dynamic pressure in the fluid stream and a static pressure in the fluid stream is measured and the mass flow rate of the cryogenic fluid within the flow tube is calculated.
摘要翻译： 用于计算流管内的低温流体的质量流量的方法包括将传感器定位在流过流管的低温流体流中。 传感器可操作地连接到应变仪。 测量流体流中的动态压力和流体流中的静态压力之间的差异，并计算流量管内的低温流体的质量流量。
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