GAS EJECTOR Russian patent published in 2001 - IPC

FIELD: jet facilities. SUBSTANCE: gas ejector has high-pressure gas nozzle coaxially enclosed in low-pressure gas nozzle, mixing chamber and ring diffuser formed by housing and central body arranged in housing coaxially to mixing chamber and housing. Inlet section of central body is formed by normal cone and truncated cone mated with formation of bend. Vertex of cone is located at distance L = D/(2sinα), from housing inlet section where D is diffuser diameter, α is angle of tilting of oblique shock wave and bend of contour from vertex of cone is at distance A = L/(2cosβ), where L is distance from vertex of cone to housing inlet section, β is angle between cone and oblique shock wave at cone vertex. EFFECT: decreased losses of full pressure of gas mixture at restoration of pressure at end of mixing chamber. 3 cl, 3 dwg