| 摘要 |
PROBLEM TO BE SOLVED: To provide sealing equipment using magnetic fluid, capable of achieving easy pre-injection of the magnetic fluid and easily supporting the magnetic fluid in a specific position, white improving pressure resistance. SOLUTION: This equipment is comprised of a nonmagnetic outer shield 5 in a media side, a nonmagnetic outer shield 6 in a bearing 2 side, an annular magnet 4 sandwiched via annular magnetic bodies 10 and 11, and an inner shied 7 whose tip is inserted into a space provided by the outer shields 5, 6 and the ring magnet 4. Magnetic fluid 9 is supported in a space surrounding the tip of the inner shield 7, and the surface of the inner shield 7 except for the space described and an adhesive part of inner diameter is coated with oil repelling material. |
