Fuel supply system
AssigneeDaimler Chrysler AG
InventorsEberhard Holder, Roland Kemmler, Martin Matt, Viktor Pfeffer, Carsten Plog, Thomas Stengel
Life of this patent
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Abstract
In a fuel supply system for an internal combustion engine including a fuel tank, a fuel processing apparatus to which fuel from the tank is supplied and which separates the fuel into different fractions, the fuel and the fractions are mixed in a mixing chamber according to a performance graph stored in a control unit depending on the operating state of the engine and the mixture is then supplied to the engine in a controlled manner.
Claims8
A fuel supply system for an internal combustion engine including a fuel tank for receiving and storing liquid fuel, a fuel processing apparatus having a fuel input connected to said fuel tank for receiving fuel therefrom, and being capable of dividing said fuel from said fuel tank into at least two fractions having different properties, a storage tank for each fuel fraction for receiving the different fuel fractions, supply lines connected to said storage tanks and said fuel tank for supplying selectively at least one of said fractions and said fuel to said engine supply line including a fuel flow control device for controlling the supply of said fuel fractions and said fuel to said engine in proportions selected depending on the momentary operating state of said engine, a mixing structure in communication with said flow control devices for receiving the fuel fractions and fuel therefrom and for mixing the fuel proportions received from said flow control device and forming a mixture for supply to said internal combustion engine, and a control unit connected to said fluid flow control devices and including a performance graph having stored therein the optimum values for the fuel mixture for any engine operating state and providing said optimum value for controlling the flow control devices so as to provide the optimum fuel mixture to the internal combustion engine at any momentary engine operating state.
Dependencies are inferred from the claim text.