公开(公告)号：US6129185A

公开(公告)日：2000-10-10

申请号：US678

申请日：1997-12-30

申请人： David A. Osterberg ,  Gerald K. Foshage

发明人： David A. Osterberg ,  Gerald K. Foshage

IPC分类号： F16F6/00 ,  F16F9/10 ,  F16F9/53

CPC分类号： F16F9/103 ,  F16F6/00 ,  F16F2230/10

摘要： Disclosed is a vibration damping and isolation apparatus having a passive damping mechanism. The passive damping mechanism includes a piston and first and second elements of magnetic material with a shaft extending therebetween. The piston and shaft are linearly movable relative to one another upon application of forces to the damping apparatus. The shaft is spaced from an axial bore of the piston by a restrictive fluid flow annulus that is filled with a viscous fluid. A resilient seal mechanism, having a static stiffness, couples the first and second elements to the piston to define first and second viscous fluid filled chambers in fluid communication with the annulus. Shearing of the fluid as it is displaced through the annulus dissipates the forces. A magnetic mechanism generates magnetic forces that act on the first and second elements to destiffen the static stiffness of the resilient seal mechanism to improve vibration damping and isolation at low frequencies.

摘要翻译： 公开了一种具有被动阻尼机构的减振隔离装置。 被动阻尼机构包括活塞和磁性材料的第一和第二元件，其间延伸有轴。 活塞和轴在向阻尼装置施加力时可相对于彼此线性移动。 轴与活塞的轴向孔隔开一个填充有粘性流体的限制性流体流动环。 具有静态刚度的弹性密封机构将第一和第二元件联接到活塞以限定与环空间流体连通的第一和第二粘性流体填充室。 当流体通过环带移动时，流体的剪切消除了力。 磁力机构产生作用于第一和第二元件的磁力，以降低弹性密封机构的静刚度，以改善低频下的振动阻尼和隔离。

公开(公告)号：US06770995B1

公开(公告)日：2004-08-03

申请号：US10396750

申请日：2003-03-25

申请人： Gerald K. Foshage

发明人： Gerald K. Foshage

IPC分类号： H02K709

CPC分类号： F16C39/063 ,  F16C32/0414 ,  F16C2361/55

摘要： A presently-preferred magnetic bearing comprises a rotor disk having a first plurality of concentric teeth extending from a surface thereof, and a stator disk having a second plurality of concentric teeth extending from a surface thereof. The first and the second plurality of concentric teeth are spaced apart by a gap that permits a primary magnetic flux to flow between the first and the second plurality of concentric teeth substantially in a first direction. Then magnetic bearing also comprises a plurality of flux focusing magnets fixedly coupled to at least one of the surface of the rotor disk and the surface of the stator disk. The flux focusing magnets produce a secondary magnetic flux that flows substantially in a second direction substantially opposite the first direction.

摘要翻译： 目前优选的磁性轴承包括具有从其表面延伸的第一多个同心齿的转子盘和具有从其表面延伸的第二多个同心齿的定子盘。 第一和第二多个同心齿通过允许主磁通量基本上沿第一方向在第一和第二多个同心齿之间流动的间隙间隔开。 然后，磁性轴承还包括固定地联接到转子盘的表面和定子盘的表面中的至少一个的多个磁通聚焦磁体。 磁通聚焦磁体产生基本上沿与第一方向大致相反的第二方向流动的次级磁通量。

公开(公告)号：US07061153B1

公开(公告)日：2006-06-13

申请号：US11045785

申请日：2005-01-28

申请人： Gerald K. Foshage ,  Raymond F. Griswold

发明人： Gerald K. Foshage ,  Raymond F. Griswold

IPC分类号： H02K3/00

CPC分类号： H02K3/47 ,  H02K7/025

摘要： An electric motor may include a plurality of stationary field coils. The field coils are disposed so that they are overlap and are nested with adjacent field coils. A portion of each coil is disposed above a portion of an adjacent coil, and a portion of each coil is disposed beneath another adjacent coil. The average radial distance of the coils from the rotational center of the motor rotor is substantially the same. This arrangement of coils facilitates rotation of the rotor at relatively high speed for applications such as flywheel storage batteries because it reduces or eliminates variations in the torque produced by the coils. In an embodiment, the coils are bent so that they are nested. By bending the coils, the coils overlap and the air gap within the motor is minimized.

摘要翻译： 电动机可以包括多个静止磁场线圈。 励磁线圈被布置成使得它们重叠并且与相邻的励磁线圈嵌套。 每个线圈的一部分设置在相邻线圈的一部分上方，并且每个线圈的一部分设置在另一相邻线圈的下方。 线圈与电动机转子的旋转中心的平均径向距离基本相同。 这种线圈布置有利于转子在相对较高的速度下旋转，用于诸如飞轮蓄电池之类的应用，因为它减少或消除了由线圈产生的扭矩的变化。 在一个实施例中，线圈被弯曲以使它们嵌套。 通过弯曲线圈，线圈重叠，电动机内的气隙最小化。