High Regression Rate Hybrid Rocket Fuel Grains with Helical Port Structures

Utah State University is seeking a party interested in licensing a method to increase the regression rate of hybrid rocket fuel. By increasing regression rates, rockets experience greater stability, less nozzle erosion, and longer motor duty cycles. Potential fields of interest include both government and private organizations in the Space and Military industries.

  • Military
  • Rockets

  • Reduce the effect of boundary layer "blowing"
  • Increase fuel regression rates
  • Increased volumetric efficiency of the fuel grain

Hybrid rocket fuel currently experiences a regression rate lower than 25% that of solid fuel motors. The lack of regression increases the oxidizer to fuel ratios which presents problems such as instability, nozzle erosion, and reduced motor duty cycles. USU researchers have developed a method to create rocket hybrid fuel to increase the rate of fuel regression. Regression rates of the fuel increases by a factor approaching three.

Patent Information:
Mechanical & Aerospace
For Information, Contact:
Christian Iverson
Utah State University
Stephen Whitmore Daniel Merkley Mansour Sobbi Sean Walker