| 摘要 |
PROBLEM TO BE SOLVED: To improve the assemblability of a turbo supercharger where the width on an engine body side of an exhaust air introduction passage provided integrally with a turbine housing is increased in a cylinder row direction, on the engine body side.SOLUTION: A turbo supercharger 50 includes: an exhaust gas introduction passage 31 extending from a turbine housing 52a toward an engine body side; and an assembly flange 30f provided at the end on the engine body side of the exhaust gas introduction passage 31, the assembly flange 30f having a bolt insertion hole V6. The width on the engine body side of the exhaust gas introduction passage 31 is increased unevenly toward the counter side of a compressor 53 in a cylinder row direction. A center C of the exit of the exhaust gas introduction passage 31 is biased toward the side of the compressor 53 with respect to a center B of a cylinder row length in the cylinder row direction on the engine body side. |
