Helicopter swashplate controller
US4445421A · kind A · utility
19Cited by
10References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1981 |
| Grant date | May 1, 1984 |
| Priority date | — |
| Expiry date | Nov 6, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C27/605
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A redundant swashplate control system includes five or more actuators coupled to the swashplate. A feedback network independently controls each actuator to track a commanded position and a reference ram differential pressure that it related to the ram differential pressures sensed from all of the actuators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.