This invention relates to an electric motor assisted turbocharger, and in particular to a turbocharger for an internal combustion engine.
Turbochargers are well known devices for supplying air to the intake of an internal combustion engine at pressures above atmospheric (boost pressures). A conventional turbocharger essentially comprises an exhaust gas driven turbine wheel mounted on a rotatable shaft within a turbine housing. Rotation of the turbine wheel rotates a compressor wheel mounted on the other end of the shaft within a compressor housing. The compressor wheel delivers compressed air to the engine intake manifold. The turbocharger shaft is conventionally supported by journal and thrust bearings, including appropriate lubricating systems, located within a central bearing housing connected between the turbine and compressor wheel housing.
In known turbochargers, the turbine stage comprisesBig Fourth Quarter Gives Trinity Football 39th Straight Win At Home

Hartford, Conn. – Freshman RB Evan Bunker (Topsfield, Mass.) rushed for 211 yards and a touchdown and threw the game-winning touchdown toss in the fourth quarter to senior TE Chris Hunt (Westford, Mass.), as the Trinity College Bantams scored three times in the final 6:02 in a 28-13 victory over the previously-undefeated Amherst College Lord Jeffs in New England Small College Athletic Conference (NESCAC) football action this afternoon at Jessee/Miller Field. Trinity, ranked No. 5 in New England, wins its fifth straight game and its 39th consecutive triumph at home, while snapping the visiting Lord Jeffs' winning streak at 14 in a row. The Bantams, which visit Wesleyan next Saturday in their last game of the year, and