Systems and Methods for Facilitating Oil Flow in Relation to Rotor Bearings

摘要

Systems and methods for rotor bearings that enable improved oil circulation, wherein axial grooves are formed in the outer periphery of each bearing to form channels that allow axial flow of oil through the channels. Each bearing includes a collar, a sleeve and an interference ring. The collar has a bore through its center in which a rotatable sleeve is positioned. The outer periphery of the collar has a circumferential groove and at least one axial groove that extends from one face of the collar to the other. An axially permeable interference ring positioned within the circumferential groove extends radially outward from the groove beyond the outer periphery of the collar. The interference ring (e.g., a looped coil spring) allows fluid in the axial groove to flow through the interference ring. The axial groove may have a different depth than the circumferential groove.

主权项

1. A bearing for a motor in an electric submersible pump system, the bearing comprising:
a collar, wherein the collar has a bore therethrough, wherein the collar has an outer periphery with a circumferential groove therein, and wherein the outer periphery further has at least one axial groove therein extending from a first axial face at a first end of the collar to a second axial face on an opposite end of the collar; a sleeve rotatably positioned within the bore of the collar and coaxially with the collar; and an interference ring positioned within the circumferential groove, the interference ring extending radially outward from the groove beyond the outer periphery of the collar, wherein the interference ring allows axial fluid in the axial groove to flow axially through the interference ring.