Design and Test of the Gas Foil Bearings-Rotor System for Centrifugal Compressor
Gas foil bearings-rotor system is used for the centrifugal air compressor in hydrogen fuel cell vehicles to achieve ultra-high speed,clean and oil-free operation.However,there is a serious lack of comprehensive research and design theory of gas foil bearing-rotor systems at present.Therefore,a design scheme of gas foil bearing-rotor system was proposed.Based on the empirical formula and performance test bench,the design and experimental research of the gas foil bearing-rotor system were carried out.The results show that the proposed comprehensive design scheme can effectively guarantee the performance requirements of the centrifugal air compressor in the full speed range,with a maximum speed of up to 90000 r/min,a maximum pressure ratio of 3.53,and a mass flowrate of 0.156 kg/s.
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维普
