Hydraulic antivibration devices
US5462262A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 10, 1994 |
| Grant date | Oct 31, 1995 |
| Priority date | — |
| Expiry date | Nov 10, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F13/264
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The hydraulic antivibration device is designed to be interposed between the body (9) and the engine (10) of a vehicle. It comprises an annular rigid strength member (1), a rigid rod (2) passing through the strength member, an annular spring (3) resting on the strength member and interposed between the strength member and the rod which passes through the spring, a membrane (4) carried by the strength member and co-operating with an annular wall (6) to define an enclosure disposed above the spring, an intermediate rigid partition (7) carried by the strength member and subdividing the inside of the enclosure into two chambers (A, B), a mass of liquid filling the two chambers and the narrow passage, a first disk (6) secured to the base of the annular wall, and a second disk (2.sub.1) secured to the head of the rod, and resting on the spring. A control apparatus is provided causing at will the two disks to move apart from each other axially.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.