Metallic Wall Hall Thrusters

Goebel, Dan Michael [Inventor]Hofer, Richard Robert [Inventor]Mikellides, Ioannis G [Inventor]

关键词: GRAPHITE;    HALL THRUSTERS;    MAGNETIC SHIELDING;    PLASMA ENGINES;    PLASMAS (PHYSICS);    RADIATION SHIELDING;    SPACECRAFT PROPULSION;    WALLS;    PATENTS;    EFFICIENCY;    HALL ACCELERATORS;    PLASMA CONDUCTIVITY;    SERVICE LIFE;   

RP-ID  :  US-Patent-9,874,202, US-Patent-Appl-SN-15/218,682

学科分类：航空航天科学

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

A Hall thruster apparatus having walls constructed from a conductive material, such as graphite, and having magnetic shielding of the walls from the ionized plasma has been demonstrated to operate with nearly the same efficiency as a conventional nonmagnetically shielded design using insulators as wall components. The new design is believed to provide the potential of higher power and uniform operation over the operating life of a thruster device.