Patent ID: 6282899
Filing Date: 2001-09-04
Classification: F02B,Y02T

Abstract:
A turbocharger for an internal combustion engine, comprising:a first stage enclosure defining a first hollow space within said first stage enclosure and an area outside said first stage enclosure;a first stage first shaft;a first stage first turbine disposed outside said first stage enclosure, including a first stage first turbine wheel carried by said first stage first shaft;a first stage first compressor including:a first stage first compressor wheel disposed in said first stage enclosure and carried by said first stage first shaft;a first stage first compressor inlet defined by said first stage enclosure and associated with said first stage first compressor wheel, said first stage first compressor inlet being in fluid flow communication with said area outside said first stage enclosure; anda first stage first compressor outlet associated with said first stage first compressor wheel, said first stage first compressor outlet being in fluid flow communication with said first hollow space;a second stage enclosure defining a second hollow space within said second stage enclosure and an area outside said second stage enclosure;a second stage first shaft;a second stage first turbine disposed outside said second stage enclosure, including a second stage first turbine wheel carried by said second stage first shaft; anda second stage first compressor including:a second stage first compressor wheel disposed in said second stage enclosure and carried by said second stage first shaft;a second stage first compressor inlet defined by said second stage enclosure and associated with said second stage first compressor wheel, said second stage first compressor inlet being in fluid flow communication with said first hollow space; anda second stage first compressor outlet associated with said second stage first compressor wheel, said second stage first compressor outlet being in fluid flow communication with said second hollow space.