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Application filed by Voda Production TechnologicalfiledCriticalVoda Production Technological
Priority to UAU200708101UpriorityCriticalpatent/UA27765U/en
Publication of UA27765UpublicationCriticalpatent/UA27765U/en
A well jet pump has a body with mixing chamber, diffuser, branch pipe for active medium supply, this is made tangent, and branch pipe for passive medium supply. The outlet section of flow-through section of branch pipe is made diverging and formed by conical surface which forms with the body a swirl circular receiving chamber and annular active nozzle and in which coaxially to the body a back valve is installed. In the body with possibility of axial displacement a mixing chamber is installed with diffuser and net installed at inlet to branch pipe for passive medium supply. The back valve is arranged as convoluted by cone elastic, for instance rubber, plate fixed at side surface of the outlet section of the flow-through section of the branch pipe for supply of passive medium in such way that is closes the active nozzle at pump stop.