Detonation Engine with Discontinuous Combustor

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2020-SLAB-69062
Researchers at Purdue University have developed a new detonation engine design that operates continuously with an open channel geometry. The novel combustion device has potential for applications in many propulsion systems, including rockets and high-speed airbreathing engines. A discontinuous channel geometry offers significant advantages for vehicle integration, breaking free from the prior assumption that detonation engines must have a connected, circular or obround geometry. Conceptual demonstrations at Purdue have shown that a straight, linear channel can be operated continuously, with performance that is comparable to that of conventional geometries.

The combustion channel can be scaled and adapted to other shapes that have varying degrees of curvature. This aspect of the design is particular amenable to hypersonic applications, where the propulsion system is a fully-integrated component of the vehicle design. With this technology, a detonation-based propulsion system can be assimilated with any surface of a vehicle for reaction control or added thrust. Detonation-based combustion can achieve a 6-8% increase in thermal performance compared to current state-of-the-art chemical propulsion systems. This novel approach offers the benefits of a rotating detonation engine with integration flexibility.

Advantages
-Higher Combustion Power Density by 10Xs
-High Thermal Performance 6-8%
-Intrinsically Supersonic Combustion
-Adaptable to Vehicle Integration

Potential Applications
-High-Speed Propulsion Including Airbreathing Engines and Rocket Engines
-Aeronautics
-Military and Defense
May 29, 2020
Provisional-Gov. Funding
United States
(None)
(None)
Purdue Office of Technology Commercialization
1801 Newman Road
West Lafayette, IN 47906

Phone: (765) 588-3475
Fax: (765) 463-3486
Email: otcip@prf.org