FIELD: engines and pumps.
SUBSTANCE: centrifugal gear pump comprises two rotors 2, 3, made as a whole with gears 4, 5, equipped with primary radial propellers 6 at the ends. Upstream each radial propeller 6 in a body 1 there is a circulation well 10, 11, equipped with an individual channel 13, 14 of working fluid supply. Channels 13, 14 are arranged tangentially to the side wall of the well 10, 11 and are directed towards rotation of an adjacent rotor 2, 3.
EFFECT: using the invention will make it possible to increase anti-cavitation resource of a pump without use of a primary axial wheel upstream a radial propeller and to provide for pump sectioning.
2 dwg
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