PLUNGER PUMP WITH ELECTROMAGNETIC DRIVE Russian patent published in 2019 - IPC F04B17/04 

FIELD: machine building.

SUBSTANCE: invention relates to machine building, particularly, to plunger pumps with electromagnetic drive. Pump comprises electromagnet with retractable anchor and pump assembly. Electromagnet consists of magnetic conductor including housing 1, cover 2 and armature 3 spring-loaded with compression spring 4. Magnetic core housing accommodates coil 5 winding mounted on carcass 6. Pump assembly of plunger pump includes plunger pair consisting of plunger 7 and cylinder 8 arranged axially in armature 3 and cover 2 of magnetic conductor respectively, as well as inlet 9 and outlet 10 valves installed in inlet 11 and outlet 12 unions respectively. At the same time plunger 7 and outlet union 12 are interconnected tightly by means of seals in armature 3 by means of threaded bushing 13. Cylinder 8 of plunger pair is secured in cover 2 of magnetic conductor by means of inlet nozzle 11 and spacer ring 14. Tightness at operation of plunger pair is provided by means of sealing element 15. To limit joint reciprocal movement of armature 3 with plunger 7 there is annular ledge 16 made on free end of armature, which moves between two shock absorbing washers 17, installed by means of spacer ring 18 in nut 19. In magnetic circuit cover 2 there are two drain channels 20 and 21, which are connected to inlet 22 and outlet 23 check valves, respectively.

EFFECT: such design of plunger pump with electromagnetic drive allows its compactness and reliability, as well as ease of manufacture and operation.

1 cl, 1 dwg