Hall Thruster with Magnetic Discharge Chamber and Conductive Coating

Goebel, Dan Michael [Inventor]

关键词: HALL THRUSTERS;    ENGINE DESIGN;    ALUMINUM COATINGS;    PATENTS;    COST REDUCTION;   

RP-ID  :  US-Patent-10,082,133, US-Patent-Appl-SN-15/064,535

学科分类：航空航天科学

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

Hall thrusters with conductive coatings are disclosed. A Hall thruster comprises magnetic shielding in order to avoid collisions with the inner walls of its discharge chamber. By removing the source of erosion, the walls of the chamber can be removed reducing mass, cost and complexity of the thruster. A conductive coating, such as an aluminum coating, is deposited on inner screens between the discharge chamber and the magnetic poles of the thruster. The magnetic field within the chamber shields the conductive coating deposited on the inner and outer screens of the chamber.