Bearings – Rotary bearing – Fluid bearing
Patent
1989-09-18
1991-07-16
Hannon, Thomas R.
Bearings
Rotary bearing
Fluid bearing
384106, F16C 3206
Patent
active
050320289
ABSTRACT:
The invention relates to a fluid film bearing and to a process for its production.
The invention relates to a hydrodynamic fluid film bearing formed between a plurality of sheets (3) fixed to a casing (5) and a shaft (6) in rotation with respect to said casing. The invention has as an object to completely dissociate the control of the radial rigidity of the bearing in the startup phase and that in the rotational phase at working speed.
A low rigidity, negligible or zero of the sheets (3) permits limiting the application forces of the sheets against the shaft and thus to reduce the wear upon startup of the bearing. After startup, the rotation of the shaft (6) at the interior of the sheet (3) causes a displacement of the sheets (3) which separate from the shaft (6) by the interposition of a hydrodynamic film of air. The new position occupied by the sheets (3) causes a return of the force of the sheets (3) by the restraining elements (4), as for example of leaf springs (40, 41, 42 or 43).
The invention is applied in particular to all conventional applications of fluid film bearings of the known type, as for example motors or rotating machines equipping aircraft.
The invention is further applicable to the provision of bearings susceptible of rotating at low speed, and/or susceptible of supporting high loads.
REFERENCES:
patent: 3635534 (1972-01-01), Barnett
patent: 3893733 (1975-07-01), Silver et al.
patent: 4005914 (1977-02-01), Newman
patent: 4195395 (1980-04-01), Silver et al.
patent: 4213657 (1980-07-01), Gray
patent: 4475824 (1984-10-01), Glaser et al.
patent: 4526483 (1985-07-01), Hishikawa et al.
patent: 4552466 (1985-11-01), Warren
patent: 4701060 (1987-10-01), Gu
Jambou Andre
Malabre Christian
Riazuelo Serge
Thomas Francois
ABG Semca S.A.
Dutton, Jr. Harold H.
Hannon Thomas R.
LandOfFree
Fluid film bearing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fluid film bearing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluid film bearing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-127472