Patent
Satellite momentum wheel
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TLDR
In this article, a satellite momentum wheel with passive magnetic centering means, between a stator and a rotor comprising at least one passive radial magnetized centering device slaved to an axial velocity sensor and a position sensor, is presented.Abstract:
The invention provides a satellite momentum wheel with passive magnetic centering means, between a stator and a rotor comprising at least one passive radial magnetic centering device, at least one axial magnetic centering device slaved to an axial velocity sensor and to an axial position sensor, at least one centering motor-generator unit having a magnetized rotor and a stator with toroidal windings switched by an angular rotation position sensor, at least one damping device, two emergency taper pivots for safe centering of the axial mounting of the rotor one of which is possibly in contact with a doped-polyamide step bearing on the stator, and interconnecting means between the wheel rim and the axis of said pivots employing a so-called coated arrayed-thread type cycloprofile structure.read more
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Patent
Flywheel rotor with conical hub and methods of manufacture therefor
TL;DR: A flywheel rotor used in a flywheel energy storage system providing a high energy storage capacity while providing an ample volume for a high power motor-generator within its envelope includes an outer, primarily cylindrical body having conically tapered end sections, a conical hub section attached to the outer body, and a relatively short inner cylinder, which cylinder connects shaft to the inner portion of the conical Hub section.
Patent
Flywheel power supply having axial magnetic bearing for frictionless rotation
Richard Hockney,Stephen B. Nichols,Geoffrey B. Lansberry,Francis E. Nimblett,Dariusz A. Bushko,Gita P. Rao,Luka Serdar,Michael E. Amaral,William E. Stanton,James O'rourke +9 more
TL;DR: In this article, a power supply device for providing uninterrupted power for a period of time is disclosed. The flywheel device has a housing that contains a flywheel rotor and a motor/generator rotor.
Patent
Magnetic bearing device
TL;DR: A flywheel assembly has a base (26) and a flywheel (24) rotatable with respect to and in contact-free relation with the base First and second annular yokes (32, 30) are secured to the base coaxial with the flywheel, and coupled to each other by radially extending control poles (34a to 34d).
Patent
Magnetic thrust bearing with permanent bias flux
Patrick McMullen,Co Si Huynh +1 more
TL;DR: In this paper, a magnetic thrust bearing has permanent magnets to provide bias flux, which allows for a low reluctance and efficient path for the control flux, and the magnetic circuits of the bias flux and control fluxes are substantially non-coincident.
Patent
Magnetic bearing arrangement for an artificial satellite
TL;DR: In this paper, a magnetic bearing arrangement for rotor for controlling the attitude of an artificial satellite was proposed, where the rotor has a rotating speed and an axis of rotation which are adjusted in accordance with a change in the satellite's attitude.
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Patent
Devices including rotating members supported by magnetic bearings
TL;DR: In this article, a gyroscope including a rotating member which is supported by a pair of magnetic bearings has two detectors for providing signals representative of the relative position of the member with respect to a common axis of the two bearings along first and second directions perpendicular to the axis and to each other.
Patent
Trimming apparatus for magnetic suspension systems
TL;DR: In this article, an adjustable permanent magnet means are described for maintaining a suspended object in an equilibrium position which is invariant with applied force in at least one dimension. But the adjustment of the field of adjustable permanent magnets is not discussed.
Patent
Magnetic support and motor structure
TL;DR: In this article, a magnetic bearing structure is used to hold the shaft of a motor out of contact with the shaft support structure, thus eliminating bearing lubrication and wear problems and making it possible to operate the device in a vacuum.