| 摘要 |
PROBLEM TO BE SOLVED: To provide a turbine housing 24 of a turbocharger 20 to which an exhaust passage (10) provided with an air-fuel ratio sensor 66 of an internal combustion engine 1 is connected, and which suppresses diffusion of exhaust gas exhausted in swirl from an exit 24c of the turbine housing 24 into the exhaust passage (10).SOLUTION: An exit 24c of an exhaust passage (10) of a turbocharger 20 is provided with an air-fuel ratio sensor 66. A convex part 24e is provided in a circumferential predetermined area closer to the exit 24c so that exhaust gas exhausted in swirl from the exit 24c into the exhaust passage (10) by a turbine wheel 21 of the turbocharger 20 is discharged with its diffusion suppressed. |
