Patent ID: 6874998

Claim:
A turbocharger comprising: a bearing housing ( 14 ) journaling an elongate shaft ( 20 ) therein, a turbine wheel ( 22 ) carried at one end of said shaft ( 20 ), a compressor wheel ( 24 ) carried at the opposite end of said shaft ( 20 ), a turbine housing ( 28 ) defining an exhaust gas inlet ( 30 ) to said turbine wheel ( 22 ) and an exhaust gas outlet ( 32 ) therefrom, a compressor housing ( 34 ) defining an air inlet ( 36 ) to said compressor wheel ( 24 ) and an air outlet ( 38 ) therefrom, and said bearing housing further defining a lubrication flow path for lubricant and a lubricant drain gallery ( 40 ) below said shaft, wherein at least a portion of the lubricant drain gallery ( 40 ) is coated with an oil repelling coating ( 44 ).