Flexible Fuel Engines with Exhaust Gas Recirculation for Improved Engine Efficiency: 7,487,766

A method and system for use with flexible fuel engines capable of operating with arbitrary mixtures of gasoline and alternative fuel. The engine is equipped with an EGR loop and a control system, such that, as the relative amount of alternative fuel decreases, the amount of EGR provided to the engine increases.
A method and system for use with flexible fuel engines capable of operating with arbitrary mixtures of gasoline and alternative fuel. The engine is equipped with an EGR loop and a control system, such that, as the relative amount of alternative fuel decreases, the amount of EGR provided to the engine increases.