NO. 5,085,185 | Powder-Lubricant Piston Ring for Diesel Engines NO. 5,085,185 | Powder-Lubricant Piston Ring for Diesel Engines Post navigation PreviousCompliant Foil Bearing Structural Stiffness Analysis: Part I – Theoretical Model Including Strip and Variable Bump Foil GeometryNextHigh Temperature Powder Lubricated Dampers for Gas Turbine Engines