Rotordynamics and Design Methods of an Oil-Free Turbocharger

The feasibility of supporting a turbocharger rotor on air foil bearings is investigated based upon predicted rotordynamic stability load accommodations, and stress considerations. It is demonstrated that foil bearings offer a plausible replacement for oil-lubricated bearings in diesel truck turbocha...

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Veröffentlicht in:	Tribology transactions 1999-01, Vol.42 (1), p.174-179
1. Verfasser:	Howard, Samuel A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Bearings, bushings, rolling bearings Drives Exact sciences and technology Friction, wear, lubrication Gas Bearings High Temperature Tribology Machine components Mechanical engineering. Machine design Oil-Free Turbomachinery
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Beschreibung
Zusammenfassung:	The feasibility of supporting a turbocharger rotor on air foil bearings is investigated based upon predicted rotordynamic stability load accommodations, and stress considerations. It is demonstrated that foil bearings offer a plausible replacement for oil-lubricated bearings in diesel truck turbochargers. Also, two different rotor configurations are analyzed and the design is chosen which best optimizes the desired performance characteristics. The method of designing machinery for foil bearing use and the assumptions made are discussed. Presented as a Society of Tribologists and Lubrication Engineers paper at the ASME/STLE Tribology Conference in Toronto, Ontario, Canada, October 26-28, 1998
ISSN:	1040-2004 1547-397X
DOI:	10.1080/10402009908982205