Patent ID: 6067969
Filing Date: 2000-05-30
Classification: F02D,F02M,Y02T

Abstract:
A fuel supply system for an internal combustion engine comprising:a fuel tank for holding liquid fuel;an injection device connected to the fuel tank by a fuel supply line;an evaporating and condensing device connected to the fuel tank, the evaporating and condensing device for separating at least some of the liquid fuel into low-boiling fuel components by condensing into a condensate and into high-boiling residual fuel components;an intermediate tank for receiving the condensate from the evaporating and condensing device;a control valve for regulating a fuel supply to the injection device, the control valve being connected to the intermediate tank by a condensate line;an additional tank connected to a residual fuel recirculation line ending in the additional tank, the residual fuel recirculation line for removing the high-boiling residual fuel components from the evaporating and condensing device;a reversing valve disposed in the fuel supply line and connected to the additional tank by a residual fuel supply line, the reversing valve being controlled so that at least some of the residual fuel components are supplied from the residual fuel supply line into the fuel supply line at full load of the internal combustion engine.