Bearings – Rotary bearing – Fluid bearing
Patent
1993-03-25
1994-07-12
Hannon, Thomas R.
Bearings
Rotary bearing
Fluid bearing
384120, F16C 3206
Patent
active
053282701
ABSTRACT:
An integrated bearing and pump assembly is formed by positioning a hydrodynamic pump coaxially with respect to a hydrodynamic bearing. The integrated assembly provides pressurized fluid for use within the device incorporating the bearing. The hydrodynamic pump comprises a secondary hydrodynamic bearing incorporated into the primary bearing assembly. The secondary bearing is optimized for high flow pumping applications rather than the high pressure, zero flow requirements of the primary bearing. When the bearing assembly is rotated, fluid flow is provided.
REFERENCES:
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patent: 4656545 (1987-04-01), Kakuta
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patent: 4797009 (1989-01-01), Yamazaki
patent: 5120139 (1992-06-01), Asada et al.
Moffitt and Moss, "Self-Pressurized Air Bearings for Disk File Actuators," IBM TDB, vol. 24, No. 3 Aug. 1981.
Bohn et al., "Arrangement for Driving and Supporting a Component Rotating at High Speed About an Axis," IBM TDB, vol. 29, No. 2, Jul. 1986.
Buchter, H. H. , Industrial Sealing Technology, John Wiley & Sons, N.Y., Copyright 1979, pp. 382-390.
Crawford Roy P.
Engwall Mats
Gilliland Larry J.
Gong Karl
Robert Michel P.
Hannon Thomas R.
International Business Machines - Corporation
Wilson James C.
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