Secondary fuel flow demand fuel pumping system
US11781484B2 · kind B2 · utility
2Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2022 |
| Grant date | Oct 10, 2023 |
| Priority date | — |
| Expiry date | Aug 2, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23K2203/20
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel system for a gas turbine engine includes a main fuel pump generating a main fuel flow into a main fuel passage and a secondary pump generating a secondary fuel flow into a secondary flow passage. A first control valve is disposed in a passage between the main fuel passage and the secondary flow passage. The first control valve selectively directs an excess portion of the main fuel flow to the secondary flow passage to provide at least a portion of the secondary fuel flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.