The friction performances of laser-textured porous seal face were experimentally investigated.

Research and trial of a new stern tube face sealing equipment;

The leakage calculation formula for end face seal of large water pump oil lubricated guiding bearings was derived in theory.

Effect of pipe s linked prestress on the pipes face seal;

The transform from contacting to noncontacting state of face seal;

A pump structure,based on angled-discharge centrifugal impeller,fitting with axial face seal and gap fit between impeller axle hole and pump axle,was introduced initially,which had the capability of self-balance.

For the mechanical seal with spiral groove on its surface applied in the high-speed turbo-pump,a thermal model of the mechanical seal considering leakage and thermal-conduction had been presented.