PROBE Russian patent published in 2003 - IPC

FIELD: concentration of aerosol particles; acceleration of gases. SUBSTANCE: proposed probe has nozzles mounted coaxially; throat of each nozzle is lesser than throat first (in way of motion of gas) nozzle; at least two nozzles are convergent. First nozzle is made in form of hole. Oblique shock wave in peripheral portion makes particle roll to central area at moment of expansion of supersonic flow where gas velocity is highest and consequently vacuum is maximum (transversal velocities of molecules of gas are minimum and longitudinal velocities are maximum). At starting mode, stable self-evacuation of chambers is created, thus giving rise to additional energy obtained during ejection evacuation. EFFECT: enhanced efficiency. 2 cl, 7 dwg