Downhole rotating machine having compliant radial bearings

Details Downhole rotating machine having compliant radial bearings Downhole rotating machine having compliant radial bearings

1991-11-13

1993-05-11

Hannon, Thomas R.

Bearings

Rotary bearing

Water lubricated propellor shaft or well shaft

384220, F16C 2700

Patent

active

052095770

ABSTRACT:
The invention provides a downhole rotating machine having a compliant radial bearing system. The compliant radial bearings in accordance with the present invention utilize a variable dimension fluid chamber between adjacent components in the bearing system. These variable fluid chambers may be defined by elastomeric members, such as o-rings. The dimension of the variable fluid chamber as well as the fluid therein serves to dampen vibration and mechanical shock to bearing components. This vibration and shock dampening facilitates the use of ceramic components within the bearing system.

REFERENCES:
patent: 2343585 (1944-03-01), Schott
patent: 2793087 (1957-05-01), Hayes
patent: 3301613 (1967-01-01), DeClaire
patent: 4029368 (1977-06-01), Tschirky et al.
patent: 4664595 (1987-05-01), Tsuji et al.
patent: 4669893 (1987-06-01), Chalaire et al.

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