Abstract: A product may be provided for use with a turbocharging system. A housing may be configured to house a bearing. A shaft may extend through the bearing. A turbine wheel may be connected to one end of the shaft. The housing may include a wall forming an opening and defining a surface facing the opening. The bearing may have a segment extending into the opening and mating with the surface. The wall may include an oil spray groove opening through the surface and having an outlet directed at the shaft.

Abstract: A number of variations may include a product comprising: a turbocharger comprising a rotor comprising a shaft having a rotation axis; a bearing at least partially surrounding the shaft allowing for rotation of the shaft within the bearing about the rotation axis, a bearing housing at least partially surrounding the bearing; a turbine housing defining a turbine chamber; a compressor housing defining a compressor chamber; a turbine wheel disposed in said turbine chamber and operatively connected to the shaft; a compressor wheel disposed in said compressor chamber and operatively connected to the shaft; and a compressor backplate disposed between the compressor housing and the bearing housing, wherein the backplate is constructed and arranged to attach to the compressor housing and the bearing housing.

Abstract: An engine turbocharger (10) includes a radially oriented oil deflector (50) that incorporates an oil guiding feature (70) to improve control of a continuous turbulent mass of oil being impelled against the deflector by an oil flinger (35). The oil deflector (50) has a downwardly extending tongue (60) to assist in directing oil flow from a thrust bearing chamber. The feature (70), formed on the tongue (60), enhances otherwise gravitationally directed oil flow into an engine oil sump. The feature is vertically oriented, and redirects oil thrown axially and rotationally against the deflector, providing improved piston ring sealing through more efficient evacuation of oil from the thrust bearing chamber. The feature may be formed by stamping, as either an integral disruptive surface rib, or as an otherwise radially oriented flange protruding axially from the surface of the tongue. Such flange may be integral with, or otherwise attacked to, the oil deflector tongue, as for example via welding.

Abstract: A bearing housing for a turbocharger is disclosed. The bearing housing includes a first end proximate to a turbine wheel of the turbocharger and a second end proximate to a compressor wheel of the turbocharger. The bearing housing further includes a central chamber disposed between the first end and the second end and configured to house, at least, the shaft. The bearing housing further includes an oil drain disposed radially outward of the shaft and configured for directing oil out of the bearing housing and an oil core disposed radially outward of the shaft and radially inward of the oil drain, the oil core configured for communicating oil towards the oil drain and having an inner wall. The bearing housing includes one or more strakes protruding radially inward from the inner wall, the one or more strakes configured to direct oil within the oil core towards the oil drain.

Abstract: A product may be provided for use with a turbocharging system. A housing may be configured to house a bearing. A shaft may extend through the bearing. A turbine wheel may be connected to one end of the shaft. The housing may include a wall forming an opening and defining a surface facing the opening. The bearing may have a segment extending into the opening and mating with the surface. The wall may include an oil spray groove opening through the surface and having an outlet directed at the shaft.

Abstract: An apparatus includes a bearing housing, a shaft assembly that extends through the bearing housing along a shaft axis, an annular groove formed on the shaft assembly, and a piston ring assembly that is engaged with the bearing housing and extends into the groove of the shaft assembly. The piston ring assembly includes a first ring portion and a second ring portion. The first ring portion has a first contact face that is oriented at a non-perpendicular with respect to the shaft axis, and the second ring portion has a second contact face that is oriented at a non-perpendicular angle with respect to the shaft axis and is engageable with the first contact face.