Experimental research on Ferrofluid Combined rotary Sealing of High Power Motor

It was designed a ferrofluid combined rotary sealing structure for a high power motor in this paper. In addition, it was calculated the magnetic field distribution of the structure by Ansys at different gaps, the result showed that the magnetic field distribution trend was generally the same. In the sealing experiment, it was concluded that when the maximum gap was 0.6mm, the single-stage sealing pressure capacity reached at 36.7KPa, and the sealing capacity remained stable with speed increasing. The experiments showed that the design was suitable for sealing high-power motors in corrosive environments.