Patents Assigned to Klueber Lubrication Korea Ltd.
  • Magneto-rheological fluid composition
    Patent number: 9449744
    Abstract: Disclosed is a magneto-rheological fluid composition which comprises magnetic particles, a fluid, a dispersant, a structure stabilizer and an anti-friction additive. Particularly, the magnetic particles include non-coated magnetic particles and polyvinyl butyral-coated magnetic particles at the weight ratio of about 1:1 to 4:1. Accordingly, dispersion stability and yield stress are improved substantially when magnetic field is applied to the magneto-rheological fluid.
    Type: Grant
    Filed: December 13, 2014
    Date of Patent: September 20, 2016
    Assignees: Hyundai Motor Company, Klueber Lubrication Korea Ltd.
    Inventors: Sung Uk Lee, Jong Min Park, Dae Yun Bae, Jin Young Lee