Compact Turbochargers for High Power Density Diesel Engines

A high-power density, Low Heat Rejection (LHR) diesel engine design for both traditional and hybrid Future Combat System (FCS) vehicle configurations is being proposed. Work under this proposal includes application of LHR engine technology to improve power density and life cycle durability of a military commercial diesel engine. This engine is General Engine Products, LLC.’s Optimizer 6500 HUMMWV engine. Proposed work also includes design for the total propulsion system of the vehicle hybrid configuration that will fit the future vehicle assigned space/volume by TACOM’s vehicle concept laboratory. This proposed engine will have a high-pressure common rail fuel injection system, additional electronic power kit, and two turbochargers to increase the intake boost pressure, and to decrease the exhaust gas temperature across the entire load and speed range of the engine. Engine hardware will be coated with tribological and thermal barrier coatings to reduce the friction and wear between the rotating and sliding engine parts, and to reduce the heat rejection to the coolant. Engine tests will be run to assess engine performance, and engine endurance. From recent R&D work, mathematical based virtual computer models developed between Adiabatics the Massachusetts Institute of Technology, and the National Transport University will be used in this program to determine optimum design parameters. Simulation modeling computations and layout design will include the concept of modular designs for the total propulsion system components, cooling, fuel injection, lubricating, and turbocharger systems. This proposed effort validates advancements for a new engine design and an existing time proven engine, the Optimizer 6500 through engine testing.