Electric propulsion based spacecraft propulsion systems and methods utilizing multiple propellants
US11945606B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2022 |
| Grant date | Apr 2, 2024 |
| Priority date | — |
| Expiry date | Oct 18, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64G1/415
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Spacecraft propulsion systems and methods featuring a first storage tank containing a metallic propellant and a second storage tank containing a non-metallic propellant are provided. A selected one of the metallic propellant and the non-metallic propellant is supplied to an electric propulsion thruster, depending on an operational mode of the spacecraft. The metallic propellant is stored at a relatively high density, while the non-metallic propellant is stored at a lower density than the metallic propellant. Moreover, the non-metallic propellant is preferably utilized to produce thrust through the electric propulsion thruster during operational maneuvers, while the metallic propellant is reserved for producing thrust through the electric propulsion thruster during end-of-life, such as deorbiting, maneuvers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.