System for Increasing Flow Uniformity

摘要

A pumping mechanism (42) moving in movement increments (80) is controlled to space those movement increments in direct proportion to the volume (76) resulting from each movement increment. In a further aspect, movement increments are grouped to result in approximately equal volumes per group. T he mechanism moves continuously through the movement increments in each group. Groups are spaced to result in approximately equal flow volumes per group. T he number of groups decreases as the flow rate increases. The number of movemen t increments in each group and the volume of each group increase as the flow rate increases.