| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent contamination of a part for guiding combustion air in an operation method of an internal combustion engine provided with an exhaust recirculation system for extracting a partial flow from exhaust air flow of the internal combustion engine, and cooling the exhaust air partial flow by an exhaust cooler to recirculate it for reducing generation of toxic materials in the internal combustion engine, particularly, an exhaust-driven supercharging heavy fuel oil diesel engine. <P>SOLUTION: Based on the invention, a recirculation flow of a cooled exhaust partial flow is carried directly to a cylinder of the internal combustion engine. Since mixing of exhaust air with compressed combustion air on the upstream of the cylinder of the internal combustion engine is dispensed with, contamination of the part for guiding the combustion air is never caused. <P>COPYRIGHT: (C)2008,JPO&INPIT |
