Top foil plate for hydrodynamic fluid film thrust bearings

Details Top foil plate for hydrodynamic fluid film thrust bearings Top foil plate for hydrodynamic fluid film thrust bearings

1998-04-18

1996-07-30

Hannon, Thomas R.

Bearings

Rotary bearing

Fluid bearing

F16C 3206

Patent

active

055405053

ABSTRACT:
The top foil of a hydrodynamic fluid film thrust bearing is formed from a single flat annular disk with radial depressions extending from the outer diameter to the inner diameter of the disk that protrude toward the foil plate and define between adjacent depressions a working surface that is configured to complement the foil bumpers attached to the foil plate. The bump foils of the upper foil plate and the bump foils of the lower foil plates can be either in axial alignment or can be displaced relative to each other. When the two sets of bump foils are displaced, the leading edge of the upper bump foils are disposed upstream (relative to the direction of the air stream entering the bump foils) of the leading edge of the lower bump foils.

REFERENCES:
patent: 4208076 (1980-06-01), Gray et al.
patent: 4462700 (1984-07-01), Agrawal
patent: 4624583 (1986-11-01), Saville et al.

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