Fluid distribution system with filtration

摘要

A fluid distribution system may include a by-pass fluid filter that combines high volume, in-tank fluid filtration with low volume fluid delivery to an external device such as an SCR injector. One or more outlet ports located along the fluid filter housing can be configured to discharge fluid toward other fluid distribution system components. In systems such as SCR systems, where the liquid reducing agent may freeze when not in use, directing already thawed liquid toward other system components can help thaw the frozen reducing agent at desired locations first. The fluid distribution system can also be arranged so that flow through the filter is in the same direction during the distribution cycle and during the purge cycle.

主权项

1. A fluid distribution module, comprising:
a fluid pump having a pump inlet configured to receive liquid from an inner tank volume and a pump outlet fluidly connected to a module outlet port; the fluid pump is capable of forward operation receiving liquid through the pump inlet and discharging liquid from the pump outlet through the module outlet port and reverse operation receiving fluid through the pump outlet and discharging fluid through the pump inlet; and a fluid filter having an inlet side fluidly connected to the pump inlet and pump outlet, an outlet side having an outlet port for discharging fluid from the filter and into the tank volume, and a filter element disposed between the inlet and outlet sides of the fluid filter capable of removing contaminants from liquid that flows through the filter element and liquid flows through the filter element in the same direction during both forward and reverse operation of the fluid pump.