Turbocharger with gas and liquid flow paths

A turbocharger comprising:

• a housing that comprises
• a compressor side,
• a turbine side,
• a through bore that extends between the compressor side and the turbine side,
• a compressor side recess defined in part by a first radius and a first axial face with respect to an axis of the through bore,
• a compressor side seal recess defined in part by a second radius and a second axial face with respect to the axis wherein the compressor side seal recess comprises a drain passage,
• a lubricant inlet,
• a lubricant outlet, and
• an interior cavity in fluid communication with the lubricant inlet and the lubricant outlet wherein, at the compressor side, the interior cavity comprises an interior cavity effective opening at the first axial face that spans an azimuthal angle about the axis of at least 90 degrees, wherein the housing comprises a cast housing wherein the interior cavity effective opening at the first axial face that spans the azimuthal angle about the axis comprises a cast opening;
• a shaft and turbine wheel assembly that comprises a shaft free end and a turbine wheel end;
• a collar that comprises a bore wherein the shaft is received in the bore of the collar;
• a compressor side plate disposed at least in part in the compressor side recess wherein the compressor side plate comprises an opening and wherein the collar is disposed at least in part in the opening;
• and
• a lubricant deflector plate disposed between the compressor side plate and the first axial face of the housing wherein the lubricant deflector plate comprises a lubricant deflector plate effective opening that spans an azimuthal angle about the axis of at least 90 degrees, wherein the interior cavity effective opening and the lubricant deflector plate effective opening at least partially overlap to form at least one gas passage, and wherein the lubricant deflector plate defines a seal cavity with respect to the compressor side seal recess.