Aircraft engine fuel system
US8991152B2 · kind B2 · utility
8Cited by
10References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 24, 2011 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | Jan 3, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86019
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An aircraft fuel system is provided and includes a metering valve having inlet and outlet sides to monitor fuel flow from the inlet to the outlet side, a check valve that, when opened, allows fuel to flow toward the inlet side during start and climb conditions and, when closed, prevents such fuel flow and an ejector pump, which is operably disposed between the check valve and the metering valve, and which, with the check valve closed, pumps fuel toward the inlet side during idle conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.