LIQUID-PROPELLEND THRUSTER Russian patent published in 2003 - IPC

FIELD: rocket engines. SUBSTANCE: proposed liquid-propellant thruster operates on liquid chemical propellant. Engine consists of cylindrical housing with fitted-in hollow bushing, and mixing head installed on housing and forming combustion chamber space together with inner space of bushing, and reaction nozzle. Sectional bushing is made of head- resistant dielectric material and is provided with two ring slots accommodating ring electrodes made of head- resistant material. Inner diameter of electrodes is equal to inner diameter of bushing. Electrodes are connected with current leads located in outer longitudinal slots of bushing being electrically insulated from housing, brought out of housing and connected with current source. Engine is furnished additionally with program-time device connecting power sour with current leads and coupled with thruster control system. Invention makes it possible to reduce consumption of propellant and increase service life of engine by synchronization of supply of additional power from separate source and moment of bringing engine to steady conditions. EFFECT: improved operation reliability. I dwg