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1. 发明授权

US06825588B2 Uninterruptible power supply using a high speed cylinder flywheel 有权
标题翻译：不间断电源使用高速气缸飞轮
公开(公告)号：US06825588B2
公开(公告)日：2004-11-30
申请号：US10312114
申请日：2002-12-20
申请人： Christopher W Gabrys , David R. Campbell
发明人： Christopher W Gabrys , David R. Campbell
IPC分类号： H02K709
CPC分类号： H02K7/025 , Y02E60/16
摘要： A flywheel uninterruptible power supply includes a solid steel cylindrical flywheel levitated for rotation about a vertical axis at tip speeds greater than 250 m/s on magnetic bearings in a low pressure housing. The cylindrical flywheel has a length L and a diameter D, wherein L/D≧1.0. A motor/generator attached to said flywheel accelerates the flywheel and maintains it at operating speed for storage of energy; and decelerates the flywheel for retrieval of the stored energy. The flywheel inertia section operates with a maximum stress of greater than 60% and less than 80% of the material yield stress when spinning at fully charged operating speed. The flywheel is constructed from steel with an ultimate strength greater 150 ksi and a toughness greater than 100 ksi (in)^1/2. The flywheel is a solid steel cylinder that is hardened to centerline structure throughout the axial thickness of the large diameter portion that is greater than 40% martensite. The flywheel is a solid steel cylinder that, in normal, fully charged operation, spins at a speed that would cause a fracture failure no sooner than one hundred thousand cycles between the fully charged normal operating speed and ten percent of that normal operating speed. The flywheel is free of flaws with length greater than ⅛th inch at a diameter less than 20% of the outer diameter of the flywheel.
摘要翻译：飞轮不间断电源包括固体钢圆柱形飞轮，悬挂在低压壳体的磁性轴承上，以垂直轴线旋转，末端速度大于250m / s。圆柱形飞轮具有长度L和直径D，其中L / D> = 1.0。附接到所述飞轮的电动机/发电机加速飞轮并将其保持在用于存储能量的运行速度; 并使飞轮减速以取出储存的能量。在完全充电的运行速度下旋转时，飞轮惯性部分的最大应力大于材料屈服应力的60％且小于80％。飞轮由钢制成，极限强度大于150 ksi，韧性大于100 ksi（in）^ 1/2。飞轮是固体钢圆柱体，其在大直径部分的大于40％马氏体的轴向厚度下硬化到中心线结构。飞轮是一个固体钢缸，在正常的完全充电操作中，以完全充电的正常运行速度和正常运行速度的百分之十之间的速度旋转将导致断裂故障不超过十万次循环。飞轮没有长度大于1/8英寸的缺陷，直径小于飞轮外径的20％。

2. 发明授权

US06806605B1 Permanent magnetic bearing 有权
标题翻译：永磁轴承
公开(公告)号：US06806605B1
公开(公告)日：2004-10-19
申请号：US10145454
申请日：2002-05-13
申请人： Christopher W. Gabrys
发明人： Christopher W. Gabrys
IPC分类号： H02K709
CPC分类号： H02K7/09 , F16C32/041 , F16C32/0417 , F16C2300/34 , F16C2361/55
摘要： A magnetic bearing system for support of a body, such as an energy storage flywheel, for rotational about a substantially vertical axis of rotation through its center of mass. The bearing system includes a rotating portion and a stationary portion on each axial side of the center of mass. Two or more concentric axially magnetized ring poles on an axial surface of the rotating body are constructed of multiple individual permanent magnet pieces, arranged in rigs inside a containment cup in the end face of the rotor with radially adjacent rings having alternating magnetic polarities. On the stationary portion, two or more concentric axially magnetized pole rings of permanent magnet material cooperate with the rotating ring magnets to produce both an axial attractive force and a radial centering force.
摘要翻译：一种用于支撑身体（例如能量存储飞轮）的磁性轴承系统，其围绕通过其质心的基本垂直的旋转轴线旋转。轴承系统包括在质心的每个轴向侧上的旋转部分和固定部分。在旋转体的轴向表面上的两个或更多个同心轴向磁化的环形极由多个单独的永久磁铁片构成，该多个单独的永久磁铁片布置在转子的端面内的容纳杯的内部的钻机中，具有具有交替磁极性的径向相邻的环。在静止部分上，永久磁铁材料的两个或更多个同心轴向磁化的磁极环与旋转的环形磁体配合以产生轴向吸引力和径向对中力。

3. 发明授权

US06781269B1 Axial magnetic bearing apparatus 有权
标题翻译：推力磁轴承装置
公开(公告)号：US06781269B1
公开(公告)日：2004-08-24
申请号：US10089547
申请日：2002-04-01
申请人： Akihiro Shimada
发明人： Akihiro Shimada
IPC分类号： H02K709
CPC分类号： F16C32/0468 , F16C32/0461 , F16C32/0476 , F16C37/005
摘要： In axial magnetic bearing apparatus in which a rotary disc made of a magnetic material is fixedly attached to a rotating shaft, and electromagnets are disposed on opposite sides of the rotary disc so as to have suitable very small distances therefrom respectively, so as to bear the rotating shaft axially in a non-contact state, a deep groove for forming an air layer having large magneto-resistance is provided all over the outer circumference of the rotary disc. Thus, formation of a magnetic circuit not contributing to position control is relieved, and the weight of the disc is reduced so that the position control performance of the axial magnetic bearing and the natural frequency of a rotor are improved.
摘要翻译：在其中将由磁性材料制成的旋转盘固定地安装在旋转轴上的电磁轴承装置中，并且将电磁铁设置在旋转盘的相对侧上以便分别具有合适的非常小的距离，以便承受旋转轴在非接触状态下轴向地设置有用于形成具有大磁阻的空气层的深槽，整个旋转盘的外圆周上。因此，减轻了不利于位置控制的磁路的形成，并且减小了盘的重量，从而提高了轴向磁轴承的位置控制性能和转子的固有频率。

4. 发明授权

US06710489B1 Axially free flywheel system 有权
标题翻译：无轴向飞轮系统
公开(公告)号：US06710489B1
公开(公告)日：2004-03-23
申请号：US10232793
申请日：2002-08-28
申请人： Christopher W. Gabrys
发明人： Christopher W. Gabrys
IPC分类号： H02K709
CPC分类号： H02K7/09 , F16C32/0408 , F16C32/0427 , F16C32/0465 , F16C32/0476 , F16C39/06 , F16C39/066 , F16C2361/55 , H02K7/025 , H02K7/083 , Y02E60/16
摘要： A flywheel energy storage system that allows high-speed operation with use of mechanical rolling element bearings for radial support of a vertical axis flywheel while they allow it to be mechanically free or unrestrained in the axial direction. Magnetic bearings are used to carry the flywheel weight axially. The axial unconstraint by the mechanical bearings allows the flywheel to freely grow or shrink in axial length from Poisson Effect contraction that occurs when rotating to very high speeds and stress levels as well as from thermal expansions from motor/generator heating or other sources, and also insures that the magnetic bearing carries all of the flywheel weight, thus greatly extending the life of the mechanical bearings. Radially compliant elements mechanically in series with the mechanical bearings provide for a lower radial stiffness, which allows the flywheel to traverse its rigid body resonance at a low speed. Above that speed, the flywheel spins about its mass center instead of the geometric center and radial loading on the bearing becomes much lower.
摘要翻译：一种飞轮储能系统，其允许使用机械滚动元件轴承进行高速操作，用于垂直轴飞轮的径向支撑，同时允许其在轴向方向上机械地自由或无限制。磁轴承用于承载飞轮重量。通过机械轴承的轴向无约束允许飞轮在旋转到非常高的速度和应力水平以及来自马达/发电机加热或其他来源的热膨胀时发生的泊松效应收缩的轴向长度自由地生长或收缩，并且还确保磁轴承承载所有的飞轮重量，从而大大延长了机械轴承的使用寿命。与机械轴承机械地串联的径向兼容元件提供较低的径向刚度，其允许飞轮以低速度穿过其刚体共振。高于该速度，飞轮围绕其质心旋转而不是几何中心，并且轴承上的径向载荷变得更低。

5. 发明授权

US06700258B2 Magnetic thrust bearing with permanent bias flux 有权
标题翻译：具有永久偏置磁通的磁力推力轴承
公开(公告)号：US06700258B2
公开(公告)日：2004-03-02
申请号：US09865015
申请日：2001-05-23
申请人： Patrick T. McMullen , Co Si Huynh
发明人： Patrick T. McMullen , Co Si Huynh
IPC分类号： H02K709
CPC分类号： F16C32/0465 , F16C32/0476
摘要： A magnetic thrust bearing having a high speed rotation capability and low cost construction. The magnetic thrust bearing has permanent magnets to provide bias flux. The magnetic circuits of the control flux and bias fluxes are substantially non-coincident, which allows for a low reluctance and efficient path for the control flux. The flux paths of the permanent magnets are completely defined with minimized airgaps for achieving higher forces and efficiency and very low control currents produce extremely large forces. No radially magnetized permanent magnets are required and no permanent magnets are attached to the rotor.
摘要翻译：具有高速旋转能力和低成本结构的磁力推力轴承。磁力推力轴承具有永磁体以提供偏置磁通。控制磁通和偏置磁通的磁路基本上是非重合的，这允许用于控制磁通的低磁阻和有效路径。永磁体的磁通路径被完全限定为最小化的气隙，以实现更高的力和效率，并且非常低的控制电流产生非常大的力。不需要径向磁化的永磁体，并且没有永磁体附接到转子。

6. 发明授权

US06664687B2 Motor having single cone fluid dynamic bearing balanced with shaft end magnetic attraction 失效
公开(公告)号：US06664687B2
公开(公告)日：2003-12-16
申请号：US09984033
申请日：2001-10-26
申请人： Yoshikazu Ichiyama
发明人： Yoshikazu Ichiyama
IPC分类号： H02K709
CPC分类号： F16C25/045 , F16C17/105 , F16C33/107 , F16C2370/12 , H02K7/085 , H02K7/086 , H02K7/088 , H02K7/09
摘要： A single cone fluid dynamic bearing motor, including a shaft having a diminishing conical taper surface, a sleeve having a concavity opposite the shaft, lubricant filled in a clearance between the shaft and the sleeve, and magnetic members to generate magnetic attraction between one end of the shaft and a cone apex of the sleeve. Grooves are formed on the conical taper surface of the shaft or the sleeve so as to create load capacity when the motor rotates, whereby rotating parts of the motor are supported by the axial components of the load capacity balanced with the magnetic attraction. The motor thereby achieves reduction in thickness, current, and cost, and inhibits non-repeatable runout.

7. 发明授权

US06608540B1 Levitation device and method 失效
标题翻译：悬浮装置及方法
公开(公告)号：US06608540B1
公开(公告)日：2003-08-19
申请号：US08948248
申请日：1997-10-09
申请人： Edward W. Hones , William G. Hones
发明人： Edward W. Hones , William G. Hones
IPC分类号： H02K709
CPC分类号： H02N15/00
摘要： An improved magnetic levitation device has a first base magnet with a partially demagnetized central region over which a second dipole magnet is spun or rotated so as to levitate above the first magnet. The levitation device may be calibrated for stability and height of levitation of the second magnet by selected demagnetization of portions of the first magnet.
摘要翻译：改进的磁悬浮装置具有第一基本磁体，其具有部分退磁的中心区域，第二偶极子磁体通过该中心区域旋转或旋转以悬浮在第一磁体上方。悬浮装置可以通过选择第一磁体的部分去磁来校准第二磁体的稳定性和悬浮高度。

8. 发明授权

US06608417B1 Super conductive bearing 失效
标题翻译：超导电轴承
公开(公告)号：US06608417B1
公开(公告)日：2003-08-19
申请号：US09654964
申请日：2000-09-05
申请人： Vasyl' V. Kozoriz
发明人： Vasyl' V. Kozoriz
IPC分类号： H02K709
CPC分类号： F16C32/0436 , H02K7/09 , H02K55/00 , Y02E40/62
摘要： A method and apparatus for supporting a rotor in a free state with respect to a stator with superconducting bearings. The apparatus has a rotor with closed rotor loops mounted on the rotor shaft and which are formed of a material having zero electrical resistance at a temperature below a superconductivity transition temperature. A stator encloses the rotor and has closed stator loops formed of the zero electrical resistance material and angularly positioned on the stator about the closed rotor loops. The closed rotor and stator loops are cooled to a temperature below the superconductivity transition temperature of the loop material and energized to create a magnetic flux between the ones of the closed rotor and stator loops. Apparatus for centering and securing the rotor within the stator is released to enable the rotor to move in the free state with respect to the stator.
摘要翻译：一种用于将转子相对于具有超导轴承的定子处于自由状态的方法和装置。该装置具有安装在转子轴上的闭合转子环的转子，并且在低于超导转变温度的温度下由具有零电阻的材料形成。定子围绕转子并且具有由零电阻材料形成的闭合的定子环，并且围绕闭合的转子环有角度地定位在定子上。闭合的转子和定子环路被冷却到低于环路材料的超导转变温度的温度，并被激励以在闭合的转子和定子环路之间产生磁通量。用于将转子定心并固定在定子内的装置被释放，以使得转子相对于定子处于自由状态。

9. 发明授权

US06559568B2 Magnetic bearing type vacuum pump 有权
公开(公告)号：US06559568B2
公开(公告)日：2003-05-06
申请号：US10068833
申请日：2002-02-06
申请人： Yasushi Maejima , Masayoshi Takamine
发明人： Yasushi Maejima , Masayoshi Takamine
IPC分类号： H02K709
CPC分类号： F16C32/0446 , F04D19/048 , F16C32/0459 , F16C32/0489 , F16C2360/45
摘要： To provide a magnetic bearing type vacuum pump, which can suppress the generation of eddy current on a shaft to be small in heat generation on the shaft and to be excellent in efficiency. In a shaft, an electromagnet target composing a target for electromagnets composing a radial magnetic bearing portion, a radial sensor target composing a target for a coil detecting a displacement of the shaft in the vicinity of the magnetic bearing portion and a collar between the electromagnet target and the radial sensor target are composed of laminated steel plates, so that the generation of eddy current caused on the shaft due to magnetic field generated in the magnetic bearing portion is reduced.

10. 发明授权

US06498411B2 Bearing apparatus 失效
公开(公告)号：US06498411B2
公开(公告)日：2002-12-24
申请号：US09969187
申请日：2001-10-01
申请人： Hideki Kanebako
发明人： Hideki Kanebako
IPC分类号： H02K709
CPC分类号： H02K7/09 , F16C17/107 , F16C39/06 , F16C2370/12 , H02K7/085
摘要： A bearing apparatus includes a rotator body, a non-rotation body rotatably supporting the rotator body, and a lubrication fluid provided between the rotator body and the non-rotation body in which the rotator body is supported in a thrust direction by a thrust dynamic pressure bearing formed between the rotator body and the non-rotation body. The bearing apparatus includes an active magnetic bearing formed by a driving coil disposed on one of the rotator body and the non-rotation body and a magnet disposed on the other thereof, and a gap sensor that detects an axial direction gap between the rotator body and the non-rotation body. The thrust dynamic pressure bearing and the active magnetic bearing are combined such that the static rigidity of the bearing apparatus is born by the active magnetic bearing and the dynamic rigidity is born by the dynamic pressure bearing.

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