Results and Impacts

The AeroPZT project aims to deliver the following results:

  1. A piezoelectric material capable of operation over the temperature range -40°C to 180°C.
  2. Encapsulation capable of enabling operation in a fuel wetted environment.
  3. A piezo element stack with metallization and encapsulation capable of producing the force and stroke required for a fuel staging valve in a SAGE 6 scale engine.
  4. An amplified stroke piezo actuator with characteristics suitable for the fuel staging requirements of SAGE 6.
  5. Data validating the cyclic and environmental performance of the piezo transducer element design in the fuel staging valve application.

If the piezoelectric solution is successfully implemented it will contribute in a highly significant way to attain the following impacts:

  1. Fuel valves with improved frequency response capable of performing the bumpless transfer function under feedback control.
  2. Improved engine surge margins during transient manoeuvres.
  3. Reduced or eliminated thrust perturbations due to fuelling transients.
  4. Improved safety for lean-burn staged combustion systems.
  5. Proven application of piezoelectric materials in a safety critical environment.
  6. Improved durability and reduced costs for fuel staging systems (due to the piezo actuator having fewer moving and wearing parts).