Cooling networks for PCD bearing surfaces

Details Cooling networks for PCD bearing surfaces Cooling networks for PCD bearing surfaces

1988-02-22

1988-12-06

Levy, Stuart S.

Bearings

Rotary bearing

Plain bearing

175320, 384282, 3849071, F16C 3700, F16C 3326, E21B 1710

Patent

active

047892510

ABSTRACT:
Polycrystalline diamond wear surfaces in bearing structures are maintained at temperatures that prevent thermal degradation in spite of exceptionally high loads. This temperature control is accomplished by segmenting the diamond wear surface to provide interrupt channels through which the energy build-up at the diamond wear surface is maintained below the thermal degradation level. Cooling fluid may be caused to flow through the interrupt channels, the higher the velocity of fluid flow around the diamond bearing surface, the greater the cooling effect.

REFERENCES:
patent: 473473 (1892-04-01), Peck
patent: 2991837 (1961-07-01), Postlewaite
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patent: 3696875 (1972-10-01), Cortes
patent: 4190301 (1980-02-01), Lachonius et al.
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patent: 4468138 (1984-08-01), Nagel
patent: 4560014 (1985-12-01), Geczy
patent: 4620601 (1986-11-01), Nagel
patent: 4662348 (1987-05-01), Hall et al.

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