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Turbocharger

United States Patent

8,517,664
August 27, 2013
View the Complete Patent at the US Patent & Trademark Office
In one example, a turbocharger for an internal combustion engine is described. The turbocharger comprises a casing containing an impeller having a full blade coupled to a hub that rotates about an axis of rotation. The casing includes a bleed port and an injection port. The full blade includes a hub edge, a casing edge, and a first distribution of angles, each angle measured between the axis of rotation and a mean line at the hub edge at a meridional distance along the hub edge. The full blade includes a second distribution of angles, each angle measured between the axis of rotation and a mean line at the casing edge at a meridional distance along the casing edge. Further, various systems are described for affecting the aerodynamic properties of the compressor and turbine components in a way that may extend the operating range of the turbocharger.
Sun; Harold Huimin (West Bloomfield, MI), Hanna; Dave (Troy, MI), Zhang; Jizhong (West Bloomfield, MI), Hu; Liangjun (West Bloomfield, MI), Krivitzky; Eric M. (Brownsville, VT), Larosiliere; Louis M. (Quechee, VT), Baines; Nicholas C. (Kidlington, GB)
Ford Global Technologies, LLC (Dearborn, MI)
12/ 689,673
January 19, 2010
STATEMENT OF GOVERNMENT CONTRACT This invention was made under U.S. Government contract No. DE-FC26-07NT43280, Department of Energy.