Hydraulic antivibratory devices
US5116029A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 30, 1991 |
| Grant date | May 26, 1992 |
| Priority date | — |
| Expiry date | Jan 30, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F13/264
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic antivibratory support is disclosed comprising two rigid frames, an elastomer structure forming therewith two sealed chambers, a restricted passage causing the two chambers to communicate permanently with each other, a liquid mass filling the two chambers and the restricted passage, a rigid ferromagnetic movable member partially defining one of the two chambers, and electric coils for applying alternating forces to this movable member, said movable member being guided axially and the air gaps being isolated from the liquid. A control system is provided making the electric energization of the coils dependent on the axial movements of the movable member itself by means of a sensor so as to reduce movements of the movable member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.