DIRECT FLOW ELECTRIC PROPULSION ENGINE Russian patent published in 2017 - IPC F03H1/00 H05H1/54 

FIELD: engines and pumps.

SUBSTANCE: invention relates to the electric propulsion engines of direct flow type (DFEPE), in which the gaseous environment is used as a working substance. DFEPE is designed to control the low-orbiting spacecraft movement. DFEPE contains a housing (1) with direct-flow cylinder-shaped channel. At the entrance into the direct-flow channel there is a gas intake device with channels (2), oriented parallel to the axis of symmetry of the direct-flow channel. The channels (2) output connects with the inlet chamber (3). At the outlet hole of the direct-flow channel there is the ion-optical system (7), containing the emission electrode (8), accelerating electrode (9) and retarding electrode (10) connected to power sources (11, 12). The inductor (5) in the spiral shape is installed in the ions ionization and accelerating chamber. The inductor (5) turns are located along the surface of revolution, coaxial to direct flow channel. The cross-section area of rotation increases in the direction from the gas intake device to the electrodes of ion-optical system (7). The dielectric coating permeable for electromagnetic field is applied to the outer surface of the inductor turns (5). The electrons emitted by neutralizer (13) go into the ion flux through the dielectric feeding channel (15).

EFFECT: reduction of DFEPE overall dimensions, its aerodynamic drag, increase of the gaseous working medium use efficiency, selected from the environment and increase of the engine density inpulse.

12 cl, 4 dwg