TURBOCHARGER

摘要

A turbocharger includes: a turbine housing including an internal space formed therein; a bearing portion provided in the turbine housing; a shaft rotatably inserted into a bearing hole in a state where at least one end protrudes more to an inside of the turbine housing than the bearing portion; and a valve fixed to the shaft and configured to open and close a flow path opened to the internal space. The bearing portion includes a protrusion portion which protrudes from an inner wall of the turbine housing. The radial hole of the protrusion portion penetrates the bearing portion in a radial direction of the shaft, from the outer circumferential surface of the bearing portion to the bearing hole.

主权项

1. A turbocharger comprising:
a housing including an internal space formed therein; a bearing portion provided in the housing, the bearing portion being provided with a bearing hole penetrating from the internal space of the housing to an outside of the housing; a shaft rotatably supported in the bearing hole, of the shaft protruding more to an inside of the housing than the bearing portion; and a valve fixed to the shaft, configured to open and close a flow path opened to the internal space along with rotation of the shaft, wherein the bearing portion includes a protrusion portion which protrudes from an inner wall of the housing facing the internal space, and the protrusion portion is provided with a radial hole penetrating in a radial direction of the shaft from an outer circumferential surface of the bearing portion to the bearing hole.