Fuel metering circuit and method with compensation for fuel-density variability

A fuel metering circuit (1) for a turbomachine, comprises a meter (6), a pump (4), a control valve (5) configured to return an excess flow of fuel delivered to the meter (6) towards the pump (4) on the basis of a fuel pressure differential at the terminals of the meter (6), a diaphragm (8) and a volumetric flow meter (9), and the diaphragm (8) and the volumetric flow meter (9) are mounted at the downstream of the control valve (5) in a manner of being parallel to the meter (6), so that the density of the fuel flowing in the metering circuit (1) is determined. 一种用于涡轮机的燃料计量回路(1)，包括：-计量装置(6)，-泵(4)，-控制阀(5)，该控制阀被构造成根据计量装置(6)的端子处的燃料压力差使输送到计量装置(6)的过量燃料流量朝向泵(4)返回，-隔膜(8)，以及-容积流量计(9)，隔膜(8)和容积流量计(9)以与计量装置(6)平行的方式安装在控制阀(5)的下游，以确定在计量回路(1)中流动的燃料的密度。