Helicopter rotor lead-lag damper
US4105365A · kind A · utility
27Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1976 |
| Grant date | Aug 8, 1978 |
| Priority date | — |
| Expiry date | Oct 4, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C27/51
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A helicopter rotor lead-lag hydraulic fluid damper has an internal anti-torque shaft preventing rotary motion of the dynamic fluid retaining seal. An independent fluid reservoir under centrifugal force supplies lubrication to the low pressure side of the seal. At rest, the fluid returns to the lower reservoir chamber by gravity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.