Leakage and Sealing of Scroll Vacuum Pump of Oil-filter

The leakage between the fixed and orbiting scrolls is considered to be a vital factor which influences the pumping performance of a scroll vacuum pump,the reflux leakages which mainly caused by axial clearance and radial clearance was analyzed,the relevant sealing principles and methods were expound,so as to provide some new minds for the optimal design of a scroll vacuum pump.