Pulsed plasma thruster with ceramic air spout electrode

The invention relates to a pulse plasma thruster provided with a ceramic nozzle electrode in the mechanical technical field, wherein, the tail of a feeding spring is unfolded and pressed under propellants and generates a feeding force for the propellants; a firing circuit supplies electrical energy to a spark plug for ignition and discharge; the spark plug is fixed on a cathode; the propellants are horizontally fixed by the feeding spring and a lug boss of an anode and vertically fixed by the cathode and the anode; a high-voltage capacitor is connected wit the cathode and the anode; and a power source is connected to a binding post of the high-voltage capacitor through a wire. The invention designs an electrode structure provided with a microcrystal mica ceramic nozzle to replace the prior parallel electrode through analysis of the operating process of the thruster. The invention is characterized by improvement of the pressure of a discharging area and the electric heating acceleration, thereby the thrust and the efficiency of the pulse plasma thruster are greatly improved.