| 摘要 |
FIELD: physics. ^ SUBSTANCE: present invention pertains to plasma technology and can be used for igniting and intensifying chemical processes in a working mixture in any type of internal combustion engine. The method of making a high-enthalpy gas jet involves putting the working gas into a discharge gap and stimulating a pulsed gas discharge with nanosecond duration, by applying high voltage pulses to the electrodes of the discharge gap. Discharge takes place when there is excess voltage (2-10 times). The amplitude U [V], rise time of the pulse-leading edge taue [s] and pulse duration t pulse [s] are determined from the expression: 3.10-14>U/(Lxn)>10-15, RC>taue<10-23xL2xn/U, 4.107/n<taupulse<1011LR/n, and pulse recurrence frequency f, [s-1] lies in the range (taupulse)-1 >f>V/L, where L is the distance between electrodes [cm], n is concentration of molecules in unit volume of the discharge section [cm-3], R is the resistance of the supply line [ Omega], C is the capacitance of the discharge gap [F], and V is the speed of gas in the discharge gap [cm/s]. The temperature of the plasma jet is regulated by varying the pulse frequency in a given range. ^ EFFECT: increased efficiency of transferring energy from external electrical circuit to gas, optimum homogeneity of the space filled with plasma and higher degree of dissociation of gas in discharge. ^ 16 dwg |
