Patent ID: 11913437
Assignee: QUANTUM SERVO PUMPING TECHNOLOGIES PTY LTD
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 14:
15. The method of claim 1 wherein:
the pumping arrangement comprises a second system, comprising:
a sequence of two or more second-system sub-systems each being a positive-displacement sub-system and having a respective second-system one-way inlet;
a respective second-system one-way flow path linking each adjacent two of the second-system sub-systems; and
a second-system one-way outlet from a last of the second-system sub-systems;

the pumping arrangement comprises double-acting pumps, each of which comprises:
a respective sub-system of the first system;
a respective second-system sub-system; and
a respective drive arrangement for driving the respective sub-system of the first system and the respective second-system sub-system in antiphase to each other;

the first mode of operation is a mode in which at least some of the second-system sub-systems are substantially in phase with respect to each other to cause the second system to draw the fluid from more than one of the second-system one-way inlets of the second system; and
the second mode of operation is a mode in which at least some of the second-system sub-systems are substantially in antiphase with respect to each other to increment a pressure of the fluid as the fluid moves along the sequence of the second-system sub-systems.