| 摘要 |
<p>Accuracy and predictability are provided in a fuel control system for an engine system including a fuel supply and a combustion chamber. The fuel control system includes at least one calibrated nozzle to direct a fuel flow from the fuel supply into the combustion chamber of the engine, a servo valve connected between the fuel supply and the at least one calibrated nozzle to meter the fuel flow from the fuel supply to the at least one calibrated nozzle, a pressure transducer operably associated with the at least one calibrated nozzle to measure a pressure drop in the fuel flow across the at least one calibrated nozzle, and a controller operably associated with the pressure transducer and the servo valve to control the metering of the fuel flow by the servo valve. The at least one calibrated nozzle has a known fuel flow vs. pressure drop characteristic. The controller controls the metering of the fuel flow by the servo valve based on the pressure drop measured by the pressure transducer and the known fuel flow vs. pressure drop characteristic of the at least one calibrated nozzle.</p> |
