Hybrid fluid and elastomer damper
US5501434A · kind A · utility
45Cited by
35References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 10, 1994 |
| Grant date | Mar 26, 1996 |
| Priority date | — |
| Expiry date | May 10, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2230/20
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hybrid fluid and elastomer damper. A damper, which may be utilized as a lead-lag damper for a helicopter rotor application, reduces vibratory motion transmitted axially, torsionally and angularly between a pair of components such as a rotor and a blade by hysteresis of the elastomer and throttling and shearing of the fluid through a narrow annular passageway. The hybrid damper captures the best features of both the elastomer and fluid dampers while avoiding many of the disadvantages of each.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.