DIAPHRAGM PUMP WITH HYDRAULIC CONTROL CONTAINING A SPECIALLY DEDICATED LINE FOR GAS REMOVAL Russian patent published in 2016 - IPC F04B43/67 

FIELD: pumps.

SUBSTANCE: invention relates to pump engineering, particularly, to a diaphragm pump having a specially dedicated line for gas removal. Pump comprises dosing head 1 with first part 2 and second part 7, in which there is hydraulic chamber 8 filled with liquid, and housing 14 for dosing means. Housing 14 comprises chamber 15 with piston 13 drive means. Valve 17 serves to control pressure in the hydraulic chamber. There is at least one line 33, 34, 36, 37 of gas removal, which extends in the second part of the dosing head so that the first end of the said line forming the lowest point of the said line has an outlet near the connection of the piston and a seal installed on the piston, and the second end of the line forming the highest point of the said line enters the hollow case of the said valve.

EFFECT: higher efficiency of the pump with hydraulic control due to continuous removal of significant part of gases present in the liquid, for hydraulic control.

9 cl, 2 dwg