Pilot indicator for predicting changes in the speed of rotation of the main rotor of a rotorcraft
US7149646B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 8, 2005 |
| Grant date | Dec 12, 2006 |
| Priority date | — |
| Expiry date | Jun 8, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C27/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a pilot indicator for a rotorcraft provided with a main rotor and at least one gas turbine engine. The indicator has first and second sensors delivering information relating respectively to a first speed of rotation Nr corresponding to said main rotor, and a second speed of rotation NTL corresponding to the free turbine of said engine. The indicator is also provided with display means provided with a display screen for displaying the first and second present values respectively for the first and second speeds of rotation Nr and NTL. In addition, said processor means determines an estimated value for the first speed of rotation Nr.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.