Volume 23 Issue 3
Mar.  2008
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HUANG Guo-ping, WANG Yue, LIANG De-wang. Experiment investigation of throttle hole aerostatic bearing of micro turbine engine[J]. Journal of Aerospace Power, 2008, 23(3): 541-546.
Citation: HUANG Guo-ping, WANG Yue, LIANG De-wang. Experiment investigation of throttle hole aerostatic bearing of micro turbine engine[J]. Journal of Aerospace Power, 2008, 23(3): 541-546.
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Experiment investigation of throttle hole aerostatic bearing of micro turbine engine

  • The Institute of Micro-Engine, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

  • Received Date: 2007-08-20
  • Rev Recd Date: 2007-12-10
  • Publish Date: 2008-03-28
    Abstract
  • Miniature aerostatic journal air bearings used in Micro-turbine engine was studied by experiment in this paper,while the effects of ratio of length to diameter,orifice,clearance of journal air bearing and supply pressure on the characters of journal air bearing were analyzed.The optimum methods for selecting these parameters were presented.An aerostatic bearing for a micro turbine engine(diameter about 11 cm) was designed: diameter: 15 mm,length: 17.5 mm,orifice: 0.35 mm,and clearance: 30 μm.When the air feed pressure is 2.5 kPa,the bearing can load 13.72 N,and the air feed is less than1.0 g/s.The aerostatic bearing designed in this paper can meet the needs of 11 cm micro turbine engine.

     

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