Magneto-rheological damping apparatus
US6390253B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 5, 1999 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Oct 5, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/535
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention provides a magneto-rheological controlled damping assembly that eliminates contact between the piston and the damping cylinder and that maintains a constant volume for the magneto-rheological fluid within the damping cylinder, therefore substantially reducing abrasion and wear to the damping apparatus components and increasing the performance and the life of the damping apparatus. The magneto-rheological damping apparatus includes a cylinder, having an MR fluid chamber portion containing a magneto-rheological fluid therein; a piston rod extending concentrically within the MR fluid chamber portion of the cylinder, where the piston rod is axially slidable with respect to the cylinder; a piston mounted on the piston rod and positioned within the MR fluid chamber portion of the cylinder, where a radial gap is formed between the piston and the MR fluid chamber portion of the cylinder so as to provide a flow path for the magneto-rheological fluids; a pair of rod guides positioned on opposite ends of the MR fluid portion of the cylinder, where the piston rod extends through and is supported by both rod guides; and a solenoid, operatively coupled to a current supply f…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.