FIELD: engines and pumps.
SUBSTANCE: claimed pump comprises two plunger sets (1, 2), each including the water cylinder (11, 12) and oil cylinder (12, 22). Water cylinder and oil cylinder pistons of each plunger sets (1, 2) displace in synchronism. The pump comprises check valves (12, 23) for water inlet for unidirectional access from outside of the container and check valves (14, 24) for water discharge for unidirectional access from the container inner chamber to the outer water discharge opening. Two oil cylinders (12, 22) can be alternatively pulled in under control by the control valve. It comprises the water vessel accommodating both water cylinders. The cylinder body sidewall has the through bore, on the water cylinder chamber outer end on rod side, to communicate with water vessel. It differs from known designs in that the pump continuous water feed allows the increase in water delivery and pressure at the pump outlet.
EFFECT: hydraulic control over the water pump.
8 cl, 3 dwg
