| 摘要 |
PROBLEM TO BE SOLVED: To provide an exhaust turbocharger that can be cleaned so that fastening of a variable nozzle can be restrained or dissolved under a mounted state without a disassembling operation and the like even when the variable nozzle is constituted around a turbine.SOLUTION: An exhaust turbocharger comprises: a variable nozzle 20 for changing an opening degree of a nozzle passage portion 15b blowing exhaust air to a turbine wheel 12 from an upstream side exhaust passage portion 15a according to postures of plural movable nozzle vanes 21; and an operation link mechanism 25 that can operate and rotate the plural movable nozzle vanes 21. The operation link mechanism 25 is housed in an operation link mechanism chamber 23 formed adjacent to the upstream side exhaust passage portion 15a by at least one housing 14 or 16 of a bearing housing 14 and a turbine housing 16. A cleaning agent injection hole 71 through which a cleaning agent L can be injected in the operation link mechanism chamber 23 from outside is formed on an upstream wall 16d in a vertical direction upper side of the operation link mechanism chamber 23. |
