Reciprocating pump for handling hydraulic fluids under pressure has piston elements driven by a drive device and fitted in a casing to move lengthwise

摘要

Driven by a drive device, piston elements (PE) (4A,4B) fit in a casing so as to move lengthwise. Bordered by the PE and a component fixed on the casing, pressure chambers (10A,10B) link to suction areas (12A,12B) via inlet valve devices (IVD) (13A,13B) while effectively linked to delivery sides (7A,7B) via the IVD.