| 摘要 |
PROBLEM TO BE SOLVED: To provide a turbine housing reducing the number of part items, reducing welding man-hours, and improving endurance reliability, in comparison with the past. SOLUTION: This turbine housing includes a scroll body portion 11 partitioning a substantially annular gas channel, and a gas introduction portion 12 for introducing exhaust gas taken in from a gas inlet 13a to the winding start position of a scroll body portion 11. The gas introduction part 12 is formed by joining together halved first and second parts 31, 32. The second halved part 32 is integrally formed with a straightening portion 33. The straightening portion 33 straightens an exhaust gas flow at a confluence of exhaust gas introduced from the gas inlet 13a to the winding start position of the scroll body portion 11 and exhaust gas recirculating by taking a round around the scroll body portion 11. COPYRIGHT: (C)2010,JPO&INPIT
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