| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To suppress decrease of a supercharging pressure and to suppress increase of a pressure at a turbine inlet. <P>SOLUTION: Movable vanes 28-1, 28-2 for communication regulation are capable of selectively switching between a communication state for communicating an outside scroll passage 21 and an inside scroll passage 22 at an upstream side from movable vanes 27-1, 27-2 and a shutting state for shutting communication of the outside scroll passage 21 and the inside scroll passage 22 at the upstream side from the movable vanes 27-1, 27-2. When the movable vanes 28-1, 28-2 for communication regulation are in the shutting state, exhaust gas flowing in the scroll flow passages 21, 22 are supplied to a flow passage between the movable vanes 27-1 and a flow passage between the movable vanes 27-2 without mutual interference. When the movable vanes 28-1, 28-2 for communication regulation are in the communicating state, the exhaust gas flowing in the scroll flow passages 21, 22 are supplied to a flow passage between the movable vanes 27-1 and a flow passage between the movable vanes 27-2 while mutually interfering. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
