箔片式动压气体轴承在低温透平机械中的应用与研究

APPLICATION AND INVESTIGATION OF FOILBEARING FOR CRYGENIC TURBOMACHINERY

简要介绍了国内外低温工程领域在低温透平机械中应用动压气体轴承的现状。分析表明，箔片式动压气体轴承是一种理想的支承元件。介绍了该轴承的起源、结构形式及该轴承在低温工程领域的应用实例，分析并评价对该轴承进行的各种理论及试验研究。最后，指出了在我国低温工程领域开展箔片式动压气体轴承透平膨胀机研究的必要性。

The application of selfacting gas bearing for cryogenic turbomachinery is briefly reviewed.It is shown that foil bearing is an excellent supporting element for highspeed turbomachinery.The origination,structure type and application of foil bearing are introduced and the theoretical and experimental investigations of foil bearing are discussed.At last,the necessity of developing foil bearing turboexpander in China is considered.