FUEL CONTROL SYSTEM FOR AN INTERNAL COMBUSTION ENGINE USING AN AQUEOUS FUEL EMULSION

摘要

A method and system (10) for the control of the overall water content of an aqueous fuel in an internal combustion engine (12) is provided. The disclosed fuel control system (10) includes a post add water system (40) and a control valve (48) that is responsive to selected engine operating characteristics such as engine operating temperature (56), engine load (52), and carbon monoxide levels in the engine exhaust (58). The post add water system (40) is adapted for selectively providing an additional supply of purified water via the control valve (48) to the aqueous fuel in the fuel line (14). The fuel system controller (20) is operatively associated with the control valve (48) to regulate the quantity of water added and thereby control the overall content of water in the aqueous fuel emulsion delivered to the fuel injectors (34).