PULSED PLASMA COAXIAL ROCKET ENGINE ON A LIQUID WORKING BODY Russian patent published in 2021 - IPC F03H1/00 

FIELD: rocket science.

SUBSTANCE: invention relates to plasma rocket engines with a liquid working body. The engine consists of a coaxial discharge chamber with an external cylindrical anode, a head with a central cathode connected to a pulse voltage source, a storage and supply system for a liquid working body with a valve and a wick. According to the invention, the engine has a head made in the form of a profiled disk made of ferroelectric, in a central through hole of which, on the side of the supply of the working body, a shut-off valve is installed, and in a larger diameter hole, on the side of the discharge chamber, a wick made of porous ceramics is installed, partially recessed in the central lining of a discharge capacitor, which is an internal fixed cathode. On the end part of a guide sleeve, on the side of the discharge chamber, a seat of a supply valve of the working body is made, and in an annular groove in the center of the outer surface of the ferroelectric head, the second, outer lining of the discharge capacitor is made.

EFFECT: when implementing the invention, increased reliability and a longer service life are achieved due to the absence of high thermal loads from arc discharges, a decrease in the amplitude of discharge currents from thousands of amperes to tens of amperes.

1 cl, 1 dwg