Hydraulic mount with magnetorheological fluid
US6622995B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2001 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | May 16, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F13/305
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic mount for automotive engine and powertrain applications includes an elastomer body, a base and a partition interposed the body and the base to form a fluid-pumping chamber and a reservoir. Circumferentially spaced axial extending holes or slots or an annular orifice track are formed in the partition together with a magnetic coil operable to impose a magnetic field on the holes, slots or orifice track to control the shear properties of a magnetorheological (MR) fluid in the pumping chamber and reservoir. An elastomeric decoupler member is in communication with at least one of the pumping chamber and the reservoir to reduce the mount dynamic stiffness for isolating low-displacement relatively high-frequency vibrations. Vibrations of multiple frequencies may be isolated by tuning the mount with a controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.