Feeding the role of the pump is to make the injection pump inlet pressure, increase the injection pump inlet pipe flow rate, in order to ensure high pressure water injection pump has sufficient supply.
In general, high lift pumps are required with a front pump (which is similar to the feed pump of the landlord) or a low position;
Because under normal circumstances, the water pump suction port flow rate is low, can not meet the requirements of high pressure water injection pump. Therefore, the purpose of adding a feeding pump at the front of the water injection pump is to increase the flow rate of the inlet of the high-pressure water injection pump so as to meet its water supply requirements!
