Abstract: A fuel supply system with an accumulator that allows for the accumulation of fuel at a pressure greater than the nominal operating pressure of the fuel supply system. The accumulation of fuel allows for less frequent fuel pump operation and therefore a reduction in overall fuel consumption of an engine.

Abstract: A fuel tank assembly includes a fuel tank having a plurality of side walls spaced apart by a floor. A flange extends downward from one of the plurality of side walls at an angle toward the floor. A fuel pump extends from the flange; the fuel pump and flange are arranged to fixedly position at least one inlet connected to the fuel pump at or in close proximity to the floor of the fuel tank. A fuel dam extends away from the floor and has at least one passage formed therein. The fuel dam is positioned so as to create an accumulated area of the fuel tank surrounding the at least one inlet. Fuel enters the accumulated area through the at least one passage and is received by the at least one inlet.

Abstract: A method and system for determining the level of fuel contained in the tank of a motor vehicle includes a first resistive element disposed in the tank and having a first predetermined length. The first resistive element generates a variable resistance in response to electrical current and fuel passing therethrough. A second resistive element is also disposed in the tank and has a second predetermined length. The second resistive element generates a fixed resistance in response to the electrical current and fuel passing therethrough. A microprocessor coupled to the first and second resistive elements determines the level of fuel contained in the tank based on the variable resistance, the fixed resistance and the first and second predetermined lengths.

Abstract: A method and system for determining the level of fuel contained in the tank of a motor vehicle includes a fuel pump disposed in the tank for creating a flow of fuel in the tank. An elongated tube is placed vertically in the tank. The system also includes a venturi tube coupled between the fuel pump and the elongated tube for creating a vacuum as a result of a portion of the flow of fuel therethrough from the fuel pump thereby drawing fuel vapor from the elongated tube at a varying pressure, the pressure decreasing as the amount of fuel vapor in the tank increases. A controller is coupled to the elongated tube for determining the level of fuel in the tank based on the pressure.