Accession Number : ADA114692

Title :   Gas Foil Bearing Development Program.

Descriptive Note : Final technical rept. 1 Jul 79-28 Feb 81,

Corporate Author : GARRETT TURBINE ENGINE CO PHOENIX AZ

Personal Author(s) : Suriano,Francis J

PDF Url : ADA114692

Report Date : Sep 1981

Pagination or Media Count : 135

Abstract : This document presents the final technical report for the nineteen-month gas foil bearing development program. The 3.5-inch foil bearing design was analyzed using an elasto-hydrodynamic analysis program. Bearing configurations with 10 and 8 foils were identified as having the potential to exceed the performance of the 12-foil GTCP165 APU bearing. A total of six bearing configurations were tested, two ambient temperature configurations using Teflon-S coated foils with a chrome-plated journal, and four with high-temperature foil and journal coatings. The high-temperature bearings used foil coatings Kaman DES, Kaman DES + au, Co-20 Ni, and TiC, all of which were run with a Kaman SCA-coated journal. Program goals were met with both ambient-temperature bearing configurations and Kaman SCA versus Kaman DES and TiC high-temperature configurations.

Descriptors :   *Gas bearings, *Journal bearings, *Foils(Materials), *Protective coatings, *Turbojet engines, High temperature, Test methods, Plastic coatings, Tetrafluoroethylene resins, Plating, Chromium compounds, Oxides, Gold, Cobalt alloys, Nickel alloys, Titanium compounds, Carbides, Ceramic materials, Composite materials

Subject Categories : Coatings, Colorants and Finishes
      Machinery and Tools
      Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE