Fluid-filled bushing
US4811933A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1987 |
| Grant date | Mar 14, 1989 |
| Priority date | — |
| Expiry date | Oct 26, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F13/16
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid-filled bushing comprises an outer tube, an inner tube disposed coaxially in the outer tube, a plurality of resilient members disposed between the outer and inner tubes and defining a fluid chamber therebetween, and a closure member disposed in the fluid chamber and having a base fitted in the outer tube and a support disposed around the inner tube and supporting the inner tube swingably and axially slidably, the closure member dividing the fluid chamber into a plurality of fluid chambers. The closure member has a valve mechanism for varying the rate of fluid communication between the divided fluid chambers. The resilient members include two substantially annular resilient partitions positioned coaxially and axially symmetrically with respect to the closure member positioned between the resilient partitions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.