US 11,927,141 B2
Method for determining the density of fuel for metering fuel in a fuel supply circuit of an aircraft engine
Arnaud Bernard Clément Thomas Joudareff, Moissy-Cramayel (FR); and Loïc Pora, Moissy-Cramayel (FR)
Assigned to SAFRAN AIRCRAFT ENGINES, Paris (FR)
Appl. No. 17/620,481
Filed by Safran Aircraft Engines, Paris (FR)
PCT Filed Jul. 3, 2020, PCT No. PCT/EP2020/068906
§ 371(c)(1), (2) Date Dec. 17, 2021,
PCT Pub. No. WO2021/001563, PCT Pub. Date Jan. 7, 2021.
Claims priority of application No. 1907427 (FR), filed on Jul. 3, 2019.
Prior Publication US 2022/0268217 A1, Aug. 25, 2022
Int. Cl. F02C 9/26 (2006.01); B64D 37/00 (2006.01); F02C 7/232 (2006.01); G01N 9/32 (2006.01)
CPC F02C 9/26 (2013.01) [B64D 37/005 (2013.01); F02C 7/232 (2013.01); G01N 9/32 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method for metering fuel in a fuel supply circuit of an aircraft engine,
the method comprising:
metering fuel in an aircraft engine fuel circuit downstream of a fuel pumping system and upstream of injectors, the metering being performed by a metering member disposed in series with a cut-off member;
discharging into a recirculation branch of the fuel circuit fuel provided in excess by the pumping system, the discharging being performed by a regulating valve;
determining a value of a density of the metered fuel based on measurements made by at least one flow-metric sensor on the recirculation branch; and
controlling the metering member based on the density value.