Satellite momentum wheel
US3955858A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 31, 1974 |
| Grant date | May 11, 1976 |
| Priority date | — |
| Expiry date | Dec 31, 1994 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2361/55
- WIPO fieldTransport
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.