Fluid Active Flow Control Enabled Variable Turbine Vane

Turbine aircraft engines (jet engines) are a type of propulsion system commonly used in aviation. These engines operate on jet propulsion, where air is drawn into the engine, mixed with fuel, ignited, and then expelled at high speed to generate thrust. Jet engines are used in commercial and military aircraft, as well as helicopters.

The Need

While turbine aircraft engines offer higher efficiency and performance than their counterparts, there is still a need to improve efficiency and reduce fuel consumption and greenhouse gases. It’s estimated that jet engines account for over 2.5% of all CO2 emissions, and there are substantial efforts to decrease their adverse environmental effects.

The Technology

This technology describes an active flow control (AFC) system that enables a variable turbine aircraft engine. Specifically, it uses AFC to vary the nozzle guide vane (NGV) throat area and flow exit angle for a high-pressure turbine via varying geometries. Thus far, the inventors have created a benchtop single passage turbine vane apparatus, showing that modulating flow via various geometries reduced total pressure recovery.

Commercial Applications

This invention can be used to enhance the efficiency and performance of turbine engines in aircraft. Benefits/Advantages This invention could improve fuel efficiency while reducing gas emissions and jet engine operational costs.

Patent Protection

  • U.S. Provisional patent application filed

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