Simultaneous Reduction of Nox and Smoke based on Port Injection of Methanol/Water Blend in a DI Diesel Engine

摘要

The auxiliary port injection system was built up using low pressure injectors installed on a common rail, Methanol/water blend was injected into each suction port of a sour cylinder turbocharg- ed DI diesel engine by controlling the injection timing and duration electronically. The optimum conditions of the injected amount of methanol/water blend and the blending ratio of methanol and water were investigated to obtain simultaneous reduction in both Nox and smoke without increasing fuel consumption.