LIQUID-VAPOUR JET APPARATUS Russian patent published in 2010 - IPC F04F5/14 

FIELD: engines and pumps.

SUBSTANCE: invention relates to jet devices, primarily to liquid-vapor jet apparatuses used in heating and hot water feed systems. Proposed apparatus comprises housing with fluid medium feed branch pie, active nozzle and mixing chamber. Apparatus housing is made from cylindrical tube with flanges arranged on tube ends. Nozzle is accommodated inside the housing as a separate part. It has inlet cylindrical section, tapered section, outlet cylindrical section and confuser. OD of inlet cylindrical part is smaller than ID of housing tube. Mixing chamber is arranged with a gap relative to the housing and also represents a separate part. It has inlet section representing a diffuser, central cylindrical section and outlet section representing confuser. Angle between nozzle confuser inner surface and housing tube axis equals that between said axis and inner surface of mixing chamber diffuser. Nozzle outlet cylindrical section length makes 0.25 to 0.35 of nozzle confuser section, while their total length allows two- to threefold reduction in flow section between mixing chamber inlet and nozzle outlet. Total length of diffuser and mixing chamber cylindrical section is smaller than distance from appropriate housing flange to the housing.

EFFECT: higher efficiency, reduced sedimentation.

1 dwg