Stagnation sensing control
US4044551A · kind A · utility
8Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1976 |
| Grant date | Aug 30, 1977 |
| Priority date | — |
| Expiry date | Apr 30, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02C7/26
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A stagnation sensing control for determining when a gas turbine engine has stagnated during a start phase of operation includes means for sampling the engine speed at a first predetermined point in time and means to hold the sampled speed in memory and further including means operative following a period of time to compare engine speed at the later point in time with the speed in memory and means operative if the speed increase is less than an established amount greater than the sampled speed in memory to produce an engine shutdown signal to operate engine starter and shut down circuits for terminating engine operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.