GAS DYNAMIC HEATER Russian patent published in 2004 - IPC

FIELD: engine construction. SUBSTANCE: gas dynamic heater is intended for use in engine making, specifically, in devices to trigger combustion of double-component systems, double-phase systems included. Gas dynamic heater has nozzle fitted with expanding supersonic part and conical resonator placed coaxially which opening angle of expanding part of nozzle amounts to 10-20 degrees on one side. Diameter of nozzle exit section Dn is chosen on condition that system of shock waves is arranged on section of nozzle, where P_a is pressure across nozzle section; P_k is pressure across nozzle entrance; D_kp is minimal nozzle section specified beforehand; k is coefficient of adiabat. Taper angle of conical resonator amounts to 3-20 degrees towards one side. EFFECT: increased efficiency of gas dynamic heater due to optimization of dimensions of expanding part of supersonic nozzle and conical resonator. 3 cl, 4 dwg