The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 20, 2016
Filed:
Dec. 13, 2014
Hyundai Motor Company, Seoul, KR;
Klueber Lubrication Korea Ltd., Seoul, KR;
Sung Uk Lee, Chungcheongnam-Do, KR;
Jong Min Park, Incheon, KR;
Dae Yun Bae, Gyeonggi-Do, KR;
Jin Young Lee, Gyeongsangbuk-Do, KR;
Hyundai Motor Company, Seoul, KR;
Klueber Lubrication Korea Ltd., Seoul, KR;
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.