Turbocharger with improved roller bearing shaft support

Patent · Tue Oct 08 00:00:00 EDT 1991

OSTI ID:5704988

Gutknecht, D A

This paper describes an exhaust gas driven turbocharger. It comprises: a housing, a shaft within the housing having a pair of ends, a compressor wheel mounted within the housing on one end of the shaft for rotation therewith, a turbine wheel mounted within the housing on the other end of the shaft for rotation therewith, means for communicating air through the compressor wheel, means for communicating exhaust gas through the turbine wheel to cause the latter to rotate the shaft and the compressor wheel mounted thereon to compress the air communicated through the compressor wheel, and bearing means mounting the shaft for rotation relative to the housing, the bearing means including a bearing outer ring, a bearing inner ring, and ball bearing elements supporting the bearing outer ring on the bearing inner ring, the ball bearing elements includes a first set of the elements and a second set of the elements spaced axially from the first set, the bearing outer ring being a rigid, uninterrupted member providing an uninterrupted structural link between the first and second sets to establish the axial spacing between the sets, a pair of axially spaced faying surfaces on the inner ring engaging corresponding faying surfaces on the shaft to support the inner ring on the shaft, the shaft defining a circumferentially extending surface between the faying surfaces on the inner ring cooperating with the shaft to define an air gap therebetween, one of the faying surfaces on the inner ring having a diameter greater than the diameter of the other of the faying surfaces on the inner ring.

• Assignee: Allied-Signal Inc., Morristown, NJ (United States)
• Patent Number(s): US 5055009; A
• Application Number: PPN: US 7-449280
• OSTI ID: 5704988
• Resource Relation: Patent File Date: 12 Dec 1989
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
INTERNAL COMBUSTION ENGINES
OPTIMIZATION
TURBOCHARGERS
ROLLER BEARINGS
COMPRESSORS
DESIGN
EXHAUST GASES
SHAFTS
SUPPORTS
BEARINGS
ENGINES
EQUIPMENT
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
MACHINE PARTS
MACHINERY
MECHANICAL STRUCTURES
SUPERCHARGERS
TURBOMACHINERY
WASTES
330603* - Vehicle Design Factors- Engine System
330103 - Internal Combustion Engines- Turbine
330602 - Vehicle Design Factors- Engine-Transmission Matching