Hall-effect motor in which the temperature of the cathode-heating device is controlled
US9309871B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2011 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Sep 27, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF03H1/0075
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A Hall effect thruster including: a discharge channel with an open downstream end; a cathode situated outside the discharge channel; an injector system configured to inject atoms of gas into the discharge channel, the injector system situated at an upstream end of the discharge channel and also forming a cathode; a heater device configured to heat the cathode; a measurement mechanism measuring temperature of the heater device, and a regulator circuit regulating the temperature such that the heater device heats so long as its temperature is less than a threshold temperature from which the thruster is capable of starting, and ceases to heat shortly after the threshold temperature has been reached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.