Fuel metering circuit and method with compensation for fuel-density variability
US11365692B2 · kind B2 · utility
0Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2018 |
| Grant date | Jun 21, 2022 |
| Priority date | — |
| Expiry date | Feb 9, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel metering circuit for a turbomachine includes: a meter; a pump; a control valve configured to return an excess flow of fuel delivered to the meter towards the pump on the basis of a fuel pressure differential at the terminals of the meter; a diaphragm; and a volumetric flow meter. The diaphragm and the volumetric flow meter are mounted parallel to the meter, downstream of the control valve, in order to determine a density of the fuel flowing in the metering circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.