LIQUID INJECTOR Russian patent published in 1999 - IPC

FIELD: spraying liquids; fire-fighting systems, humidification and adsorption system, burning fuel in power engineering and transport. SUBSTANCE: liquid injector includes axisymmetrical housing, circular outlet nozzle with central body whose outer surface has varying geometric form along axis of symmetry. Outlet nozzle of injector is formed by ring-shaped passed made in housing and outer surface of central body. outer surface of central body is formed by at least two taper surfaces at apex angles of cone generating surfaces increasing stepwise in way of flow being sprayed. Injector may include at least one additional outlet nozzle; in this case, both nozzles are arranged in housing coaxially in succession one after other. Ring-shaped passage for each subsequent outlet nozzle is made in central body in previous outlet nozzle (in way of escape of flow being sprayed); central body is used as housing of nozzle. Flow sections of outlet nozzles and sizes of their central bodies reduce from first one in way of escape of flow being sprayed towards next one. Apex angle of cone forming the first taper surface (in way of escape of flow being sprayed) ranges from 20 to 30 deg and apex angle of cone forming the next taper surface (in way of escape of flow being sprayed) ranges from 60 to 70 deg. EFFECT: improved mass-and-heat exchange processes in spraying liquid. 7 cl, 1 dwg