Implementation of Unit Injectors in Small, Heavy Fuel Engines

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-08-M-2902
Agency Tracking Number: O081-UM4-1238
Amount: $99,818.00
Phase: Phase I
Program: SBIR
Awards Year: 2008
Solicitation Year: 2008
Solicitation Topic Code: OSD08-UM4
Solicitation Number: 2008.1
Small Business Information
200 Yellow Place, Pines Industrial Center, Rockledge, FL, 32955
DUNS: 175302579
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Chris Mento
 PI/Mechanical Engineer
 (321) 631-3550
Business Contact
 Michael Rizzo
Title: Controller
Phone: (321) 631-3550
Research Institution
The U.S. Department of Defense is currently interested in obtaining small engines that are lightweight, reliable, durable, fuel efficient, and low cost for many applications. Some of these applications include providing propulsion and power generation for small unmanned aircraft systems (UAS), unmanned ground systems (UGS), and unmanned maritime systems (UMS), with power requirements in the 8 kW range. Engines of this size will require smaller components that may not be commercially available, such as ignition systems, fuel injectors, and fuel pumps. For fuel injection systems, it would be beneficial to use unit injectors, which combine the fuel pump and nozzle into one unit and allow for much higher fuel injection pressures in a smaller package, improving performance while reducing components and weight compared to conventional systems. Mainstream proposes to develop small unit injectors that would be applicable to small, heavy fuel engines for military applications. First, Mainstream will integrate existing commercial electronic unit injectors into one of Mainstream’s existing large engines and design a control strategy to maximize performance and efficiency. After the benefits of unit injection have been demonstrated with bench-scale tests and simulation models, design of the smaller unit injector for engines in OSD’s 8-kW target power range will follow.

* Information listed above is at the time of submission. *

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