ERODING PULSE PLASMA ACCELERATOR Russian patent published in 2015 - IPC H05H1/54 F03H1/00 

FIELD: electricity.

SUBSTANCE: cathode (1) and two electrically isolated anodes (2, 3) form accelerator channel of eroding pulse plasma accelerator (EPPA). Dielectric blocks of ablating material are installed between the first anode (2) and cathode (1). EPPA comprises transporter for dielectric blocks, butt end insulator (4), electric discharge initiator with electrodes (7). Power supply system includes two capacitive energy storage units (9, 10), current leads connecting capacitive energy storage units with discharge electrodes and power supply unit (8) for electric discharge initiator. The first anode (2) id placed in the accelerator channel from the side of butt end insulator (4). The second anode (3) is placed from the side of the accelerator channel output. The first energy storage unit (9) is coupled between the second anode (3) and cathode (1). The second energy storage unit (10) is coupled to anodes (2, 3). The second energy storage unit (10) is coupled to the first anode (2) through control current lead made as a rod (11). The control current lead is placed from the side of butt end insulator (4) and isolated electrically from the accelerator channel. The rod (11) functioning as the control current lead is placed between the first anode (2) and cathode (1) and oriented orthogonally in regards to the anode surface and opposite surface of the cathode. The rod (11) is connected to the second capacitive energy storage unit (10) so that passing-through electric current IT is directed equally in regards to charging current IP between the first anode (2) and cathode (1).

EFFECT: simplified EPPA design, improved reliability and increased operational life, improved controllability and stability of characteristics of the generated plasma flow due to synchronisation of processes of evaporation and acceleration of working medium.

13 cl, 4 dwg