| 摘要 |
An exhaust turbocharger with a variable-nozzle mechanism with fail-safe feature included is provided with which, even if wear of the drive ring (43) supporting part (50) where the supporting elements are in reciprocating sliding or rolling contact with each other under high temperature without lubrication increases, the drive ring (43) can be supported on the nozzle mount (41) on the second supporting part (52,52a), which enables the drive ring (43) to be always supported rightly on the nozzle mount (41), and to prevent the occurrence of eccentric rotation or dropping out of the drive ring and of reduction in engine performance. |
