Patent ID: 7883627
Filing Date: 2011-02-08
Classification: B01D,B60K

Abstract:
1. A system for removing impurities from fluid fuel stored in two or more tanks comprising an apparatus comprising: a pump having a flow velocity sufficient to suspend settled impurities in a fuel storage tank; at least a first and second fuel storage tank each having an inlet and an outlet; at least one filter; a fluid pathway connecting said pump, said first and second fuel storage tanks and at least one filter; a first three-way valve positioned at a junction between the inlets of at least said first and second fuel storage tanks; a second three-way valve positioned at a junction between the outlets of at least said first and second fuel storage tanks; and a system controller component operably connected to said first and second three-way valve and controlling the position of each said first and second three-way valve thereby causing fluid fuel stored in said first fuel storage tank to circulate in a first closed fluid path through said at least one filter and return to said first fuel storage tank for a first predetermined period of time, and subsequently automatically causing fluid fuel stored in said second fuel storage tank to circulate in a second closed fluid path through at least one filter and return to said second fuel storage tank fluid, whereby, following programming, said system controller component controls the actuation of the three-way valves without manual intervention.