Detection of engine failure in a multi-engine aircraft
US4817046A · kind A · utility
7Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1986 |
| Grant date | Mar 28, 1989 |
| Priority date | — |
| Expiry date | Apr 10, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2270/09
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Primary logic (116-128) for engine failure detection in a multi-engine aircraft is based on thresholds for engine torque (Q), gas generator speed (NG), power turbine inner stage temperature (T5), power turbine speed (NF), throttle setting (PLA), and throttle manipulation (PLADOT). Subroutines for return to dual engine operation (110), backup of the primary logic (200,300) and remaining engine failure (200) are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.