Bearings – Rotary bearing – Fluid bearing
Patent
1995-06-05
1997-08-19
Footland, Lenard A.
Bearings
Rotary bearing
Fluid bearing
F16C 2702
Patent
active
056580797
ABSTRACT:
The top foil (12) of the hydrodynamic fluid film journal bearing (10) carries opposing tabs (23,25) at the side edges adjacent the free end (17) thereof and extends radially outward to fit adjacent to the side edges (19,21) of the intermediate foil 14 and the ends of the key 18 when rolled into a cylinder and inserted into the bore of sleeve (24) to prevent skewing of the top foil. In another embodiment skewing is prevented by incorporating opposing tabs (37,39,50,52) at the free ends (31,54) of the top foil (12a) and intermediate foil (14a) that project through predetermined sized slots (40,42) formed in the side edges (44,46) at the fixed end of intermediate slot (14a). The tabs overlie the side edges of the intermediate foil (14b) and bump foil (15) when rolled into a cylinder and prevent skewing and enhancing journal bearing performance.
REFERENCES:
patent: 3809443 (1974-05-01), Cherubim
patent: 4552466 (1985-11-01), Warren
patent: 4767222 (1988-08-01), Paletta et al.
Beck John M.
Struziak Ronald M.
Footland Lenard A.
Friedland Norman
United Technologies Corporation
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