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FY 2007 Progress Report for Advanced Combustion Engine Technologies

The mission of the Vehicle Technologies Program is to develop more energy-efficient and environmentally friendly highway transportation technologies that enable the United States to use less petroleum. The Advanced Combustion Engine R&D Sub-Program supports this mission and the President's initiatives by removing the critical technical barriers to commercialization of advanced internal combustion engines for light-, medium-, and heavy-duty highway vehicles that meet future Federal emissions regulations. The primary goal of the Advanced Combustion Engine R&D Sub-Program is to improve the brake thermal efficiency of internal combustion engines:

  • for passenger vehicles, from 30% (2002 baseline) to 45% by 2010, and
  • for commercial vehicles, from 40% (2002 baseline) to 55% by 2013,

while meeting cost, durability, and emissions constraints. R&D activities include work on combustion technologies that increase efficiency and minimize in-cylinder formation of emissions, aftertreatment technologies that further reduce exhaust emissions, as well as the impacts of these new technologies on human health. Research is also being conducted on approaches to produce useful work from waste engine heat through the development and application of thermoelectrics, electricity generation from exhaust-driven turbines, and incorporation of energy-extracting bottoming cycles.

The document is very large; it has been divided into sections for easier use. Each section is available as an Adobe Acrobat PDF. Download Adobe Reader

  • Entire document in one file (PDF 22.0 MB)
  • Cover, Title Page, and Contents (PDF 405 KB)
  • Section I: Introduction (PDF 2.2 MB)
  • Section II: Advanced Combustion and Emission Control Research for High-Efficiency Engines
    • Section IIA: Combustion and Related In-Cyclinder Processes (PDF 10.0 MB)
    • Section IIB: Energy-Efficient Emission Controls (PDF 2.7 MB)
    • Section IIC: Critical Enabling Technologies (PDF 3.3 KB)
    • Section IID: Health Impacts (PDF 977 KB)
  • Section III: Solid State Energy Conversion (PDF 1.9 KB)
  • Section IV: University Research (PDF 3.7 MB)
  • Section V: New Projects (PDF 249 KB)
  • Section VI: Acronyms and Abbreviations (PDF 392 KB)
  • Section VII: Index of Primary Contacts (PDF 266 KB)
  • Disclaimer and Back Cover (PDF 39 KB)