Efficient Aviation Hydraulic Propulsion System


Distributive propulsion technology brings new opportunities for efficiency improvement and control methodologies development in modern airplanes. The main benefits of distributive propulsion technology are 1) allowing the prime mover and aerodynamic rotor to operate closer to their optimal speed, 2) allowing separation between the prime mover and the rotor, to be able to place the rotor at more efficient locations, and 3) allowing individual speed control of each rotor. The current system utilizes electric generators and motors. However, the drawback of the current technology is the low power to weight ratio, which results in undesirable heavy propulsion systems and low aircraft useful load.

Researchers at Purdue University have developed a new method for planes’ propulsion systems. This new method involves using hydraulics to distribute engine power to secondary controllers which create thrust. This new way is more efficient and allows for the optimum use of engine power for any circumstance the plane may be in. This new method utilizing hydraulic systems is lighter (25% of propulsion system weight for the same power level) compared to the electric counterpart.




  • More efficient thrust distribution
  • More efficient thrust control
  • More efficient engine speed management

Potential Applications

  • Aviation
  • Propulsion systems

Contact Information

Name: Dhananjay Sewak

Email: dsewak@prf.org

Phone: 765-588-3482