Patent ID: 6422204
Filing Date: 2002-07-23
Classification: F02D,F02M

Abstract:
A fuel system for controlling the quantity of fuel supplied to an internal combustion engine comprising:(a) a fuel tank containing a baffle within which is positioned a fuel pump for supplying fuel to the internal combustion engine; (b) a forward-flow fuel line for conducting fuel from the fuel pump to the engine and a return-flow line for conducting return fuel from the engine to the fuel tank; (c) a mixer connected to receive fuel both from the forward-flow line and from the return-flow line; (d) a pressure regulating valve operatively connected between the forward-flow line and the mixer, whereby excess fuel from the fuel pump and not needed by the engine is fed into the mixer; and (e) a non-return valve connected between the mixer and the return-flow line; whereby (f) pressure variations within the mixer resulting from variations in the pressure in the return-flow line are used to activate the pressure regulating valve.