Ceradyne, Inc.

Other

Ide, Russell Douglas

Ide, Russell Charles

Russell Charles Ide

Russell Douglas Ide

A thrust bearing assembly comprising a bearing runner and a bearing carrier, the carrier defining thrust pad sites annularly around the carrier, with a thrust pad disposed at a site and with the carrier limiting movement of the thrust pad in a direction generally radial to the longitudinal axis of the runner while allowing the thrust pad to move in a direction generally parallel to the longitudinal axis. The pads can tilt under load to form a hydrodynamic wedge. A runner may have a wear resistant face. In one implementation, at each site, a deflection element (e.g., Belleville washer) is at least partially disposed within a cavity and a pad is disposed over the deflection element. The wear resistant face contacts the pad. Another embodiment rigidly connects pads disposed on opposite sides of a stationary bearing carrier. Another embodiment attaches pads to a bearing carrier using pad holder assemblies.

Thrust bearing assembly

An electrical submersible pump runner having a core layer and a wear layer affixed to the core layer. One embodiment of the invention provides an electrical submersible pump that includes a motor section and a centrifugal pump section. A seal section and rotary gas separator may also be included. The pump is powered by an electric cable that connects the pump, located in a bore hole, to a power source on the surface. A thrust runner coated with a wear layer (e.g., polymer) is provided in the motor and/or seal section to reduce bearing temperature, provide longer bearing life, reduce costs, and facilitate overhaul. The runner may also function as a rotating up-thrust bearing when the runner is coated with a wear layer on one side that is formed with a bearing geometry. In this case, the up-thrust bearing may be eliminated.

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West Greenwich, RI, United States of America

Russell Charles Ide