摘要:
A system for mixing a shot of at least two fluid components in which the components are stored in accumulators and are supplied simultaneously therefrom to the input ports of a mixing device. The fluid components are stored in the accumulators at preselected pressures which will tend to assure that the fluids are supplied approximately at a desired preselected volume flow rate ratio. Positive displacement devices are placed in the lines which supply the fluids from the accumulators to the mixing device, such devices being mechanically linked through gear linkage having a gear ratio selected in accordance with the preselected volume flow rate ratio. During operation, the positive displacement devices assure that the preselected volume flow rate ratio of the fluids is maintained at the desired ratio throughout the entire shot.