DOSING DEVICE Russian patent published in 2016 - IPC F17D3/12 

FIELD: engines and pumps.

SUBSTANCE: device comprises pump 1, connected with suction 2 and discharge pipelines 4. Pump drive is made in form of impeller machine, which impeller is fitted in outer casing. 10. On impeller is fixed external magnetic half-coupling 14. Shaft 17 of impeller machine is installed in inner housing 16 and provided with inner magnetic half-coupling 18. Screen between magnetic half-couplings is wall of inner body made of nonmagnetic material. On shaft there is cam 22 connected with rod of pump. Housing 9 of pump is tightly connected with external and internal housings, in outer casing on side of turbine there is tapering element.

EFFECT: due to usage as impeller machine drive operated from flow energy of pumped product, higher reliability of dispensing is achieved.

12 cl, 5 dwg