POWER LOSS \N FLUID-FILM BEARINGS LUBRICATED WITH MULTIPHASE BOILING MEDIUM
Justification of application of low-boiling low-viscosity fluids as lubricants for fluid-film bearings has been presented. The main thermophysical and tribological properties of cr i ogeni c fl ui ds used as fuel components of liquid propel l ant rocket engi nes and var i ous rotor machines have been investigated. A mathematical model has been formed to calculate power losses due to friction and pumping of a lubricant in a hybrid bearing has been carried out. The calculation results of power loss vs temperature and feeding pressure have been presented.