Patent ID: 6669455
Filing Date: 2003-12-30
Classification: F04B,F16L

Abstract:
A fluid-pumping system comprising a pump having an inlet and an outlet and a pulsation dampener arranged to dampen pressure pulsations at the outlet, wherein the pump is arranged to be driven by air delivered at a regulated pressure via a pressure-reducing regulator associated with the pump, wherein the fluid-pumping system further comprises means for averaging the pressure of the air driving the pump wherein the pulsation dampener is arranged to be charged by air delivered to the pulsation dampener through a charging line, at a regulated pressure, via a pressure-reducing regulator associated with the pulsation dampener, and wherein the pressure-reducing regulator associated with the pulsation dampener is arranged to regulate the pressure of the air charging the pulsation dampener by reference to the average pressure of the air driving the pump.