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A turbocharger includes a housing, a first rotor wheel, a second rotor wheel, a driveshaft, a first bearing and a second bearing. The housing defines a first region, a second region, an intake air inlet, an intake air outlet and an exhaust gas inlet. The first rotor wheel is located in the first reg

A turbocharger includes a housing, a first rotor wheel, a second rotor wheel, a driveshaft, a first bearing and a second bearing. The housing defines a first region, a second region, an intake air inlet, an intake air outlet and an exhaust gas inlet. The first rotor wheel is located in the first region and the second rotor wheel is located in the second region. The first bearing is located on a first axial side of the first rotor wheel axially between the first and second rotor wheels and supports the driveshaft for rotation relative to the housing. The second bearing is located on a second axial side of the first rotor wheel and supports the first rotor wheel for rotation relative to the housing.

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1. A turbocharger comprising: a housing defining a first region and a second region;a compression mechanism including: a compressor rotor wheel located in the first region;a turbine rotor wheel located in the second region; anda drive shaft extending between and coupled to the compressor rotor wheel

1. A turbocharger comprising: a housing defining a first region and a second region;a compression mechanism including: a compressor rotor wheel located in the first region;a turbine rotor wheel located in the second region; anda drive shaft extending between and coupled to the compressor rotor wheel and the turbine rotor wheel;a first bearing located on a first axial side of the compressor rotor wheel axially between the compressor and turbine rotor wheels, coupled to the housing and supporting the drive shaft for rotation relative to the housing; anda second bearing located on a second axial side of the compressor rotor wheel, coupled to the housing and supporting the compressor rotor wheel for rotation relative to the housing, wherein the housing defines an oil feed to the second bearing, said oil feed having a first outlet in communication with an oil distribution annulus of the second bearing and a second outlet forming an oil jet providing oil to a ball bearing set of the second bearing, and an oil drain at an end of the first region of the housing supporting the second bearing. 2. The turbocharger of claim 1, wherein the first bearing provides radial support for the drive shaft and the second bearing provides radial and axial support for the drive shaft at the second axial side of the compressor rotor wheel. 3. The turbocharger of claim 1, further comprising guide vanes located within the first region of the housing axially between an air inlet and the compressor rotor wheel. 4. The turbocharger of claim 3, wherein the guide vanes are located axially between the second bearing and the compressor rotor wheel. 5. The turbocharger of claim 4, wherein the first bearing includes an air bearing or a magnetic bearing. 6. The turbocharger of claim 1, wherein the first bearing is an oil-free bearing. 7. The turbocharger of claim 1, wherein the housing is formed from a composite material. 8. An engine assembly comprising: an engine structure defining an intake port and an exhaust port; anda turbocharger including: a housing defining a first region, a second region, an intake air inlet in communication with an air source, an intake air outlet in communication with the intake port and an exhaust gas inlet in communication with the exhaust port;a compressor rotor wheel located in the first region;a turbine rotor wheel located in the second region;a drive shaft extending between and coupled to the compressor rotor wheel and the turbine rotor wheel;a first bearing located on a first axial side of the compressor rotor wheel axially between the compressor and turbine rotor wheels, coupled to the housing and supporting the drive shaft for rotation relative to the housing; anda second bearing located on a second axial side of the compressor rotor wheel, coupled to the housing and supporting the compressor rotor wheel for rotation relative to the housing, wherein the housing defines an oil feed to the second bearing including a first outlet in communication with an oil distribution annulus of the second bearing and a second outlet forming an oil jet providing oil to a ball bearing set of the second bearing and an oil drain at an end of the first region of the housing supporting the second bearing, said drive shaft including an oil deflector extending radially outward from the shaft and located axially between the second bearing and the compressor rotor wheel. 9. The engine assembly of claim 8, wherein the first bearing provides radial support for the drive shaft and the second bearing provides radial and axial support for the drive shaft at the second axial side of the compressor rotor wheel. 10. The engine assembly of claim 8, wherein the intake air inlet and the intake air outlet are in communication with the first region of the housing, the exhaust gas inlet is in communication with the second region of the housing. 11. The engine assembly of claim 10, wherein the turbocharger includes guide vanes located within the first region of the housing axially between the intake air inlet and the compressor rotor wheel. 12. The engine assembly of claim 11, wherein the guide vanes are located axially between the second bearing and the compressor rotor wheel. 13. The engine assembly of claim 8, wherein the turbocharger is oriented with the first region located below the second region. 14. The engine assembly of claim 8, wherein the first bearing is an oil-free bearing. 15. The engine assembly of claim 8, wherein the first bearing includes an air bearing or a magnetic bearing. 16. The engine assembly of claim 8, wherein the housing is formed from a composite material. 17. An engine assembly comprising: an engine structure defining an intake port and an exhaust port; anda turbocharger including: a housing defining an intake air region, an exhaust gas region, an intake air inlet in communication with an air source, an intake air outlet in communication with the intake port and an exhaust gas inlet in communication with the exhaust port;a compressor wheel located in the intake air region;a turbine wheel located in the exhaust gas region;a drive shaft extending between and coupled to the compressor wheel and the turbine wheel;an air bearing located on a first axial side of the compressor wheel axially between the compressor wheel and the turbine wheel, coupled to the housing and supporting the drive shaft radially for rotation relative to the housing; anda thrust bearing located on a second axial side of the compressor wheel, coupled to the housing and supporting the compressor wheel radially and axially for rotation relative to the housing, wherein the housing defines an oil feed to the thrust bearing, said oil feed having a first outlet in communication with an oil distribution annulus of the second bearing and a second outlet forming an oil jet providing oil to a ball bearing set of the thrust bearing, and an oil drain at an end of the intake air region of the housing supporting the thrust bearing, said drive shaft including an oil deflector extending radially outward from the shaft and located axially between the second bearing and the compressor rotor wheel.