A Fast-Response, Electronically Controlled Fuel Injection System for Small Heavy Fuel Engines with Multi-Fuel Capabilities Navy STTR FY2010.A Sol No.: Navy STTR FY2010.A Topic No.: N10A-T033 Topic Title: A Fast-Response, Electronically Controlled Fuel Injection System for Small Heavy Fuel Engines with Multi-Fuel Capabilities Proposal No.: N10A-033-0740 Firm: Mainstream Engineering Corporation 200 Yellow Place Pines Industrial Center Rockledge, Florida 32955-5327 Contact: Joe Homitz Phone: (321) 631-3550 Web Site: www.mainstream-engr.com Abstract: Advances in electronically controlled injection technologies for diesel engines have provided a method to improve medium- to heavy-duty engine performance through increased injection pressures, multiple injections, and injection rate shaping. Although these injection systems have been primarily limited to larger engines, the ability to rapidly and precisely meter fuel for smaller engines is particularly important for small ground-based and UAV engines. With small ground-based and UAV engines, electronically controlled fuel injection could be used to improve fuel efficiency, increase power density, reduce noise, and/or reduce emissions. The ability to meter fuel rapidly would allow precise control of small UAV engines at high rpm. Mainstream proposes to develop a fast-response, electronically controlled fuel injection system (including the injector, pump, and control system) for engines in the 5-20 hp range through innovative improvements to existing technology. The system will have multi-fuel capability and will be packaged to allow retrofitting to existing engines. In Phase I, Mainstream and the University of Wisconsin, a leader in the field of internal combustion research, will carry out an experimental evaluation to prove the feasibility and value of the proposed improvements. In Phase II, the team will fabricate and evaluate an integrated system with an operational engine. Benefits: The successful completion of this effort will result in a fuel injection system for small heavy-fuel engines that will have the ability to rapidly control and precisely meter small amounts of fuel. The development of this system will provide a method to achieve increased fuel efficiency, reduced noise, and/or reduced emissions for ground-based engines and UAV engines in the 5-20 hp range. In addition, the multi-fuel capability of the system will allow standard military fuels to be used in these engines, drastically reducing stock volumes and logistics requirements of other fuels. Return