GAS-ELECTRIC COUPLER OF GAS-DISCHARGE UNIT OF ION SOURCE AND METHOD FOR MANUFACTURING BASE PARTS THEREOF Russian patent published in 2021 - IPC H01J27/00 H05H1/54 F03H1/00 

FIELD: engineering.

SUBSTANCE: invention relates to gas supply systems of gas-discharge units of ion sources and can be used for gas-discharge ion sources used in electric rocket ion engines, technological products processing materials in a vacuum, and space ion sources interacting with space debris objects. The gas-electric coupler of a gas-discharge unit of an ion source is comprised of interconnected insulators with working medium passage channels, located in the gap in the working medium supply path. The first insulator downstream from the gaseous working medium supply is made in form of a ceramic coupling nut tightly connected with the fitting of the gas supply system through a seal. The second insulator is made in form of a hollow cylinder with thread on the outer surface, intended for connection with the first insulator. The third insulator made in form of a rod with a spiral groove along the outer surface is tightly installed in the cavity of the second channel. The manufacturing method consists in producing elements of the gas-electric coupler of the gas-discharge unit of the ion source from dielectric materials.

EFFECT: simplified design, a possibility to increase the operating voltage values of the ion source due to the length of the gas passage channel formed by a spiral recess in the third insulator given a tight connection thereof with the second insulator along the outer surface.

5 cl, 5 dwg