Fluid bearings

Details Fluid bearings Fluid bearings

1981-11-03

1984-01-17

Footland, Lenard A.

Cutlery

384121, F16C 3206

Patent

active

044261187

ABSTRACT:
A fluid bearing of the type whereby a fluid film is created which separates the confronting surfaces of two bearing members in use, and in which the fluid is supplied from a recess formed in one of those surfaces. Fluid shear resistance, resulting from fluid circulation set up within the recess by the relative movement of the two bearing members, is diminished by providing the recess fluid with a circulation path whereby the effect of the circulation within the path is to set up a negative pressure gradient in the fluid lying between the leading and trailing ends of the recess and adjacent the surface of the other bearing member. The path may lie external to the recess itself, or may be created within the recess by a baffle which may be movable so that the gradient may be varied to match changes in operating conditions. The structure creating the gradient effect may be confined to divergent shaping of the walls of the circulation conduit itself, or may include means to add a component of positive drive to the circulation of fluid. Parameters required to eliminate shear resistance and to minimize the total power required to overcome fluid resistance forces in use are also disclosed.

REFERENCES:
patent: 3129037 (1964-04-01), Ott
patent: 3751118 (1973-08-01), Arneson
patent: 4114959 (1978-09-01), Christ

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