IMPROVED CHARGE PUMP THAT HAS CORROSIVE STABILITY TO MOLTEN ALUMINIUM AND IMPROVED STREAM PROFILE Russian patent published in 2017 - IPC F04F1/18 B22D43/00 

FIELD: engines and pumps.

SUBSTANCE: pump contains a body (1') in the form of a steel pipe (6), the inner side of which is made of ceramic material (8). The pump comprises a nitrogen supply line (3) connected to the lower part of the mentioned body (1') and an outlet head (10) attached to the upper part of the body (1'). The head (10) is made of a cast ceramic material and comprises a distribution chamber (9), the inner cavity of which has an ellipsoidal domed shape on a whole with a flat bottom part and an ellipsoidal upper part and two outlet nozzles (2a', 2b') with a rectangular shape in a cross section. The pump body (1') and the nitrogen supply line (3) are coated with a ceramic fabric layer (7) capable of withstanding the influence of the molten metal, like the head (10) material and the material (8).

EFFECT: increased pump service life and reduced turbulence of the molten metal stream.

11 cl, 4 dwg