FIELD: engines and pumps.
SUBSTANCE: invention relates to class of jet pumps. Toroidal vessel 1 has two shaped branch pipes 4 and 7 coaxial to it to create axial clearance between them. Active fluid medium enters vessel 1 with help of two independent supply devices, part of one of them are feed unions 3 equally spaced in circle, each of feed unions has shaped active nozzle 2. Second supply device has feed unions 5 equally spaced in circle, each feed union has shaped active nozzle 6.
EFFECT: improved energy characteristics of jet pumps.
4 cl, 2 dwg
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