| 摘要 |
PROBLEM TO BE SOLVED: To improve reliability of a sensing value by agitating a flow of exhaust gas without complicating a structure in an internal combustion engine having a catalyst with a sensor and an EGR device.SOLUTION: An EGR pipe 10 is connected to a portion of an exhaust pipe 5 on an upper stream side than an A/F sensor while one end thereof enters inside the exhaust pipe 5. One end 10a of the EGR pipe 10 functions as a mixing member for agitating a flow of exhaust gas, and therefore, the exhaust gas can be mixed so that a component of the exhaust gas becomes uniform without complicating the structure. As a result, reliability of a detection value of the A/F sensor can be improved, and also a function of a catalyst can be improved. |
