Calculation and analysis on film thickness of the slippers based on hydrostatic bearing in the aeronautical fuel piston pump

The friction pair between swash plate and slipper is very important in the aeronautical fuel piston pump,and has great effect on the service life of the piston pump.Variation laws of the film thickness with rotor angle,angle of swash plate,pocket pressure and pressing force were obtained.The differential equations of the variation of the film thickness were established,hence the dynamic law of the film thickness in one period was further obtained.By the calculation method of the film thickness,the lubrication condition in one period between swash plate and slipper can be obtained,offering a theoretical basis for the design of the slippers in aeronautical fuel piston pump.