Patent ID: 6371094
Filing Date: 2002-04-16
Classification: F02M,Y02T

Abstract:
A method for forming a fuel-air mixture for an internal combustion engine (22) during a warmup phase, which comprisesevaporating the fuel during normal operation of the engine (22) in order to recover low-boiling fuel components from the fuel used during the normal operation by directing the fuel in liquid form through a first evaporation region (14) of an evaporation and condensation system (15); preheating the fuel delivered to the evaporation and condensation system (15); condensing and collecting the low-boiling fuel components as cold-starting fuel in a supply container (27); and preparing cold-starting fuel from the supply container (27) during the warmup phase to form a fuel-air mixture, and cooling the fuel leaving the evaporation and condensation system (15) in liquid form before being delivered to the engine (22).