The United Engine Corporation (ODK, part of Rostec) has developed a method for controlling and protecting gas turbine engines (GTE) in the event of spontaneous changes in fuel consumption. The development is aimed at improving the reliability of aircraft power plants.
The new system monitors the position of the metering needle in the fuel assembly in real time. If there is a deviation from the specified parameters, the electronic controller instantly detects the malfunction and activates the backup control mechanism.
Unlike previous solutions, the system reacts not to an increase in speed, but to the root cause — unauthorized movement of the metering needle. This prevents sudden overheating, surge and destruction of engine components.
Two solenoid valves have been introduced into the design, which adjust the fuel supply in case of excess or deficiency. The electronics automatically returns the parameters to the operating range, maintaining thrust at the required level.
The technology will be especially in demand for engines with a FADEC control system that do not have backup mechanical regulators.
As a reminder, the FADEC system is already successfully used on a number of modern Russian aircraft engines, providing efficient operation without mechanical redundancy — PD-14 for MS-21, PD-8 for SJ-100, the promising PD-35 and a number of others.
Read more materials on the topic:
- Million accident scenarios: a unique protection for aircraft was created in Russia
- Key systems of MS-21-310 were successfully created in Russia independently
- MAI has created a device that will make airplanes lighter and more economical
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