Triaxial Swirler Liquid Injector Development

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNM06AA17C
Agency Tracking Number: 041885
Amount: $50,000.00
Phase: Phase II
Program: SBIR
Awards Year: 2006
Solicitation Year: 2004
Solicitation Topic Code: X6.01
Solicitation Number: N/A
Small Business Information
Sierra Engineering, Inc.
603 E. Robinson, Suite 7, Carson City, NV, 89701-4046
DUNS: 006620553
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Daniel Greisen
 Principal Investigator
 (916) 363-2996
Business Contact
 Margo Hornung
Title: Business Official
Phone: (775) 885-8483
Research Institution
Sierra Engineering Inc. (Sierra) believes that the subject triaxial liquid propellant swirl injector has the potential to meet many of NASA's Earth-to-Orbit (ETO) propulsion systems goals. The triaxial swirl injector is ideally suited to a wide range of liquid oxidizers and fuels, including hydrogen and a wide range of hydrocarbons. It holds the potential of excellent high-frequency combustion stability characteristics and low injector production cost, similar to a pintle injector. Additionally, the triaxial swirl injector offers the potential for excellent injector and combustion chamber thermal compatibility and outstanding propellant atomization characteristics, both at levels far superior to a pintle injector. The triaxial injector concept is well suited to both main injector and preburner applications. The Phase I SBIR effort focused on understanding the influence design variables have on injector performance. We developed the mechanical design concept for a prototype injector. The proposed Phase II effort will complete the detailed design and analysis of the prototype injector. The test hardware will be fabricated and tested with several propellants. A preliminary design will be developed for a large-scale combustor.

* information listed above is at the time of submission.

Agency Micro-sites

US Flag An Official Website of the United States Government