Bearings – Rotary bearing – Fluid bearing
Patent
1994-08-18
1996-05-21
Hannon, Thomas R.
Bearings
Rotary bearing
Fluid bearing
F16C 3206
Patent
active
055183204
ABSTRACT:
A foil journal bearing comprising a housing having an opening to receive the journal of a shaft, and a plurality of foil supports extending longitudinally through the opening. The foil supports having arcuate inner and outer surfaces and are positioned to transversely surround the journal. An endless foil element encircles each foil support in a direction transverse the longitudinal axis of the element to engage and support the journal. Rods are positioned between the outer arcuate surface of each foil support and respective foil element that are movable relative to the foil support for varying the stiffness of each foil element.
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patent: 3520578 (1970-07-01), Licht
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patent: 3747997 (1973-07-01), Winn
patent: 3795427 (1974-03-01), Licht et al.
patent: 3809443 (1974-05-01), Cherubim
patent: 4445792 (1984-05-01), Trippett
patent: 4815864 (1989-03-01), Jones
M. Saville, A. Gu and R. Capaldi; "Liquid Hydrogen Turbopump Foil Foil Bearing;" Jun. 24-26, 1991.
G. L. Agrawal; SAE Technical Paper Series, "Foil Gas Bearings for Turbomachinery;" Jul. 9-12, 1990.
H. Heshmat, J. A. Walowit and O. Pinkus; Journal of Lubrication Technology, "Analysis of Gas-Lubricated Foil Journal Bearings;" Oct. 1983; vol. 105.
H. Heshmat, W. Shapiro and S. Gray; Journal of Lubrication Technology, "Development of Foil Journal Bearings for High Load Capacity and High Speed Whirl Stability;" Apr. 1982; vol. 104.
L. Licht and M. Branger; Transactions of the ASME, "Motion of a Small High-Speed Rotor in 3 Types of Foil Bearings;" Apr. 1975.
Mohamed Zahroof
San Andres Luis A.
Hannon Thomas R.
The Texas A&M University System
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