The Experimental Study of Aerodynamic Plate-Foil Journal Bearings for High Speed Cryogenic Turboexpander

Y. Hou Xi'an Jiaotong University, Institute of Cryogenic Engineering, Xi'an, 710049, P. R. of China

L. Y. Xiong Xi'an Jiaotong University, Institute of Cryogenic Engineering, Xi'an, 710049, P. R. of China

J. Wang Xi'an Jiaotong University, Institute of Cryogenic Engineering, Xi'an, 710049, P. R. of China

M. F. Lin Xi'an Jiaotong University, Institute of Cryogenic Engineering, Xi'an, 710049, P. R. of China

C. Z. Chen Xi'an Jiaotong University, Institute of Cryogenic Engineering, Xi'an, 710049, P. R. of China

Abstract

Experiments have been conducted on the application of a new type of gas lubricated self-acting journal bearing—plate-foil bearing to a high speed cryogenic turboexpander. The 25.0 mm diameter bearing consists of a rigid housing and a flexible foil element; different structure parameters of the bearing are selected in the experiments. Experimental results indicate the foil bearing presented here offers better system stability performance and high durability, and it confirmed that the application of this type of plate-foil bearing to the cryogenic turboexpander is feasible. The experiment results, including the effect of the plate-foil bearing structure parameters on the rotor-bearing system stability, are described in this paper.

Presented at the 54th Annual Meeting Las Vegas, Nevada May 23–27, 1999

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Presented at the 54th Annual Meeting Las Vegas, Nevada May 23–27, 1999

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The Experimental Study of Aerodynamic Plate-Foil Journal Bearings for High Speed Cryogenic Turboexpander

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The Experimental Study of Aerodynamic Plate-Foil Journal Bearings for High Speed Cryogenic Turboexpander

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