Surface texture and groove designs for sliding contacts

Abstract

A sliding contact assembly includes a first surface and a second surface. The second surface of the sliding contact assembly is configured to slide over the first surface, and at least a portion of the second surface contacts the first surface to form at an interface between the first surface and the second surface. The sliding contact assembly also includes a plurality of textures on the portion of the second surface that contacts the first surface. A density of the plurality of textures is not uniform over the portion of the second surface that contacts the first surface. The sliding contact assembly can include apex seal to housing interfaces in rotary engines, roller to roller interfaces, roller to housing interfaces, bearing to surface interfaces, etc.

Dependencies are inferred from the claim text.