Hydraulic vibration-free couplers and in damping assemblies equipped with such couplers
US5165668A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1991 |
| Grant date | Nov 24, 1992 |
| Priority date | — |
| Expiry date | Sep 30, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F13/28
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic vibration-free coupler comprises an inner tubular strength member (1), an outer tubular strength member (2) and an intermediate body (3) made of elastomer defining fluid-tight chambers connected to each other by restricted passages (9). Natural vibrations are actively attenuated by artificially imposing appropriate vibrations to a magnetic ring (7) which moves freely in all possible transverse directions, but not axially, by excitation of electrical coils (5) circumferentially distributed around the ring on the inside of the outer tubular strength member (2). This is done along one or both of two separate diametral directions E and F.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.