Patent ID: 7055543
Filing Date: 2006-06-06
Classification: B60K,F02D,F02M,G05D,Y10T

Abstract:
1. A mobile vehicle, comprising: a chassis comprised of frame members with an engine engaged for driving the vehicle; at least two fuel tanks, a primary tank and a secondary tank, engaged to said chassis frame members; each said fuel tank have a fuel level sender; said fuel level senders electrically engaged to a vehicle electronic controller to provide fuel tank level indication to said electronic controller; a return line from said engine engaged to said primary tank; a draw line from said primary tank engaged to said engine; a draw line from said secondary tank engaged to an inlet to a control valve and an outlet of said control valve engaged to said draw line from said primary tank between said primary tank and said engine; said electronic controller programmed to control said control valve such that closing said control valve isolates said secondary tank and allows said engine to draw from only said primary tank; said electronic controller programmed to control said control valve such that opening said control valve enables said engine to draw from both said primary tank and said secondary tank; and said electronic controller programmed to open and close said control valve based upon differential volume between said primary and said secondary tanks as determined by indications provided to said electronic controller from said fuel level senders in said primary and said secondary tanks.