High Authority Fuel Flow Actuator

"The proposed device is a High-bandwidth, Authority, Fuel Flow Actuator (HAFFA). The design stems from a systems perspective, including power electronics, mass & volumetrically efficient driving mechanism, preferential failure modes, and thermally tolerantoperation. Our solution leverages innovations in flow, mechanical packaging, electromechanical and power transfer efficiency to yield a robust performance device for combustion control. The actuator targets the problem of controlling pressure fluctuationsand heat release profiles in aircraft engines. Specifically, it focuses on eliminating unwanted fluctuations through high bandwidth modulation of the fuel. The results of controlling unwanted fluctuations are improved component affordability, improvedcombustion efficiency, and potentially reduced pollutant emissions."