| 摘要 |
PROBLEM TO BE SOLVED: To prevent oil in a bearing part from being sucked by the rotation of a compressor blade without complicating a structure and without enlarging a turbocharger in the turbocharger.SOLUTION: A turbocharger is rotatably held by a bearing part 15 filled with oil and fixes a compressor blade 2 to one end part of a rotating shaft 3. A back face members 17, 18 are arranged between the compressor blade 2 and the bearing part 15, and a back face space 28 is arranged between the compressor blade 2 and the back face members 17, 18. For example, the back face space 28 is held in a positive pressure state by sucking air from the outer peripheral part the compressor blade 2 to a direction of the rotating shaft 3 by integrally forming a suction blade 30 in a back face 29 of the compressor blade 2. It is possible to prevent oil from being sucked out without adding other members. |
