TURBOCHARGER

摘要

A turbocharger includes: a bearing provided in a turbocharger body, and configured to rotatably support a turbine shaft in an insertion hole formed in the bearing; and an opposing portion which faces an end surface of the bearing in an axial direction of the turbine shaft. An end-surface guide portion is provided to any one of an opposing surface of the bearing which faces the opposing portion, and an opposing surface of the opposing portion which faces the bearing. The end-surface guide portion configured to make the insertion hole and an outer peripheral edge of the end surface of the bearing in radial directions of the turbine shaft communicate with each other extends forward in a rotational direction of the turbine shaft from a part of the end surface of the bearing which communicates with the insertion hole.

主权项

1. A turbocharger comprising:
a turbocharger body; a turbine shaft rotatably housed in the turbocharger body with a turbine impeller provided to one end of the turbine shaft and a compressor impeller provided to an opposite end of the turbine shaft; a bearing provided in the turbocharger body and configured to rotatably support the turbine shaft in an insertion hole formed in the bearing; and an opposing portion facing an end surface of the bearing in an axial direction of the turbine shaft, wherein an end-surface guide portion configured to make the insertion hole and an outer peripheral edge of the end surface of the bearing in radial directions of the turbine shaft communicate with each other is provided to any one of an opposing surface of the bearing which faces the opposing portion, and an opposing surface of the opposing portion which faces the bearing, and the end-surface guide portion extends forward in a rotational direction of the turbine shaft from a part of the end surface of the bearing which communicates with the insertion hole.