Fuel system pneumatic purge apparatus and method
US4041695A · kind A · utility
69Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 1975 |
| Grant date | Aug 16, 1977 |
| Priority date | — |
| Expiry date | Nov 21, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2524
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pneumatic purge system retrofittable upon existing gas turbine engines which includes an accumulator for storing pressurized gas at the maximum pressure developed by the compressor of the turbine engine. Upon actuating a solenoid fuel shutoff valve to initiate engine shutdown, stored gas from the accumulator flows into the fuel manifold to purge fuel therefrom into the combustion chamber. Timing of the pneumatic purging sustains the combustion process to burn substantially all the purged fuel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.