Patent ID: 9080462
Filing Date: 2015-07-14
Classification: F01D,F02C

Abstract:
1. A cooling structure for a bearing housing of a turbocharger, wherein the bearing housing includes a housing body supporting a rotor shaft of the turbocharger in a rotatable state and having a bearing hole formed therein, the bearing housing being formed by casting, the cooling structure comprising: an oil jacket formed in a lower half portion of the housing body, and a water jacket formed in an upper half portion of the housing body, without protruding into the lower half portion, the water jacket including a first water passage and a second water passage each having one end portion that opens at the upper half portion of the housing body, wherein the first water passage and the second water passage are configured to be formed by straightly drilling the bearing housing with a cutting tool, and other end portions of each of the first water passage and the second water passage are in communication with each other in the upper half portion of the housing body.