| 摘要 |
PROBLEM TO BE SOLVED: To securely prevent a heap of the deposit on the inner wall of an intake port without disassembling an intake system and without hindering the fuel injection diffusing characteristic and without generating the lowering of a degree of freedom of design in an exhaust gas reflux device for cylinder fuel injection engine. SOLUTION: This exhaust gas reflux device is provided with an exhaust gas reflux passage 52 for leading a part of the exhaust of a cylinder fuel injection engine 1 to an intake system 13, and provided with a cleaning agent supply means 54 for supplying the cleaning agent 54e for washing the dirty of the intake system.
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