Small Engines Designed for High Efficiency, High Power Density and Quiet Operations

Period of Performance: 06/11/2009 - 02/08/2010


Phase 1 SBIR

Recipient Firm

Engine Research Assoc., Inc.
3219 Stellhorn Road
Fort Wayne, IN 46815
Principal Investigator


This program will establish a very quiet, fuel efficient and high power density engine and generator that can operate on JP-8 and diesel. It will be significantly lighter than existing engines and generators. The proposed approach will use an internally supercharged variant of the Migrating Combustion Chamber (MCC) engine. This engine s mechanism and cycle of operation allow it to operator on low octane fuels like JP-8 and diesel without auto-ignition, detonation or wet stacking. Small MCC engines have been operated on zero octane fuel, JP-8 and diesel without auto-ignition or detonation. The MCC engine provides full expansion of the combustion gases inside the engine which increases efficiency, reduces emissions and produces a very quiet, cool exhaust. This engine will be fully integrated with a proprietary, very high power-to-weight alternator using rare earth permanent magnets. Microprocessor controls will provide for load following, stabilized power under varying loads. This system is capable of partial load operation without wet-stacking. This system is scalable from 3 kW to 15 kW and larger and includes both AC and DC outputs in one unit.