A Feasibility Study on the Use of New Gas Foil Bearings in Cryogenic Turboexpander

  • Lian-You Xiong
  • Gang Wu
  • Chun-Zheng Chen
  • Yan-Zhong Li
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 43)

Abstract

Experiments have been conducted with two type of gas lubricated foil journal bearings and a small cryogenic turboexpander. One of these bearings is named as a spirally-wound foil bearing and the another is named as a multi-leaves foil bearing. Both of them have much simpler construction and lower cost as compared with the conventional foil bearings. The rotor of cryogenic turboexpander, 103 mm long and weighing 0.9 N, has the working speed up to 230,000 rpm. The main purpose of the investigation is a preliminary examination of stabilizing characteristics of those foil bearings under several different clearances and foil stiffness as well as the durability of the foils. Experimental results indicate the foil bearings presented here offer system stability and high durability, and it confirmed that the application of gas foil bearing to the cryogenic turboexpander is feasible and hopeful.

Keywords

Copper Wire Rotor Vibration Bearing Clearance Test Bearing Cryogenic Engineer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Reference

  1. 1.
    S. Gray. Technology progress on compliant foil air bearing systems for commercial applications, 8th Int Gas Bearing Symposium (1981)Google Scholar
  2. 2.
    K. Hayashi, Development of aerodynamics foil bearings for high-speed rotor, 21st Leeds-Lyon Symposium Tribology (1994)Google Scholar
  3. 3.
    L. Y. Xiong, G. Wu et al. Development of Aerodynamic Foil Journal Bearings for High Speed Cryogenic Turboexpander, Cryogenics, vol. 37, n4, p221–230 (1997).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1998

Authors and Affiliations

  • Lian-You Xiong
    • 1
  • Gang Wu
    • 1
  • Chun-Zheng Chen
    • 1
  • Yan-Zhong Li
    • 1
  1. 1.Institute of Cryogenic EngineeringXi’an Jiaotong UniversityXi’anChina

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